g694 Specs 209288 Rcf Bandsaw Spec

7/31/2019 g694 Specs 209288 Rcf Bandsaw Spec

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Section-III Page 1 of 33

SECTION III

INDIAN RAILWAYSCENTRAL ORGANIZATION FOR MODERNIZATION OF WORKSHOPS

SPECIFICATION FOR HORIZONTAL HIGH SPEED HEAVY DUTY METAL CUTTING BAND SAWSpecification No. COFMOW/HHDMCBS/340 x340 mm /2010 Rev-II

Important Notice:

i) Tenderers are required to give comments against each clause and sub-clauses on the following technicalspecifications, and on Schedule-I, II, III & VI and enclosed Annexure. Comments should be to the point andspecific information should be provided wherever asked for. Deviations, if any, should be clearly indicatedwith details and proper justification to avoid back reference.

ii) The bidder shall quote only for the make of sub-assemblies and equipment wherever specified. Othermakes of sub-systems shall normally not acceptable. In case, some other make is quoted, specificreasons for the same including its features/advantages over specified makes must be brought out in the offer.

iii) Unless stated otherwise latest alterations/ revisions of specifications/ standards/ drawings shall beapplicable. In respect of safety standards and environmental standards relevant to the machine, it ismandatory for the machine manufacturer to ensure compliance with international standards (CE/ISO/DIN/JIS) /National standards (IS), wherever applicable, in their offer.

iv) Offers are likely to be ignored in case of non-compliance of these instructions. The conditions/featuresindicated in main specifications of Section III shall over-ride those mentioned in Schedule II & III, wherever

applicable.v) Tenderers must offer and quote for all the specified concomitant accessories, as these are consideredessential for commissioning and utilization of the machine. Offers received without price of any of the specifiedconcomitant accessories will be considered as incomplete and are liable to be rejected.

vi) Tenderer should specify relevant clause of tender documents against every comment/ statements of youroffer. In case, any item is required in sets, please specify nos. /pieces per set. This is essential for propertechnical / financial evaluation of the offer.

vii) Bidder or his authorized agent must visit RCF/ Kapurthala with prior appointment with Chief Plant Engineerand acquaint themselves with existing process of coil handling/cutting, site conditions, availability of cranefacility etc. The firm should give comments to this aspect in their offer.

1. PURPOSE FOR WHICH REQUIRED AND CAPABILITY

1.1 Heavy Duty Power Operated Automatic Metal Cutting Band Saw Machines completed with necessary

operator controls and with all concomitant accessories are required as per leading parameters mentioned inSchedule-I for consignee as listed in Annexure-C to Schedule-I. The band saw shall be capable of working inmanual, semi-automatic and automatic mode.

1.2 The machine should be capable of accurately performing sawing of components listed at Annexure-Ato Schedule-I for consignee as listed in Annexure-C to Schedule-I. The machine shall also be capable ofaccurately performing other sawing operations, like straight, angled or mitre sawing of jobs like bar stocks,pipes and other sections.Angle/mitre cutting can be done either by rotating the band saw head or by any othermeans. Actual means/ arrangement provided for straight, angled or mitre sawing on the machine should beindicated in the offer.

1.3 The machine should cut the work piece with flatness and parallelism to + 0.1 mm per 100 mm of cut orbetter. The tolerance of cut-off length should be as per DIN 7168 or IS 8000: Part 1, or better. The firm shouldindicate the actual value of flatness, parallelism and tolerance of cut-off length that shall be achieved by theoffered machine.

1.4 The machine should provide vibration free sawing at full load. The machine should have adequaterigidity and weight to ensure perfect parallel cuts. The design of machine should be such as to maintain thedesired accuracy, flatness and parallelism of cut throughout the working life of the machine. The firm shouldfurnish the details of design parameters incorporated to achieve this objective.

1.5 Machine shall have provision of automatic feeding the work piece / material to a preset cutting lengthfor consignee at Annexure-C to Schedule I.

1.6 Band saw machine shall be utilized in double shift working (of 8 hours per shift) for 6 days a week with85% machine availability and shall be capable of working in severe workshop conditions at full capacity withambient temperature ranging from 50 C - 480 C, relative humidity up to 98% and dusty & noisy atmosphere.The firm should indicate the features provided in hydraulic, electrical and the coolant systems to achieve theseobjectives.


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1.7 Cycle Time

1.7.1 The machine shall be capable of performing sawing operations i.e. making 4 nos. of parallel cuts eachon 340mm x 340mm (minimum) square and 340mm (minimum) round bars of ASTM A572 Grade 50 steel andalso furnish cycle time for the same required for proving out at their premises.

1.7.2 The tenderer shall furnish break up of the floor-to-floor timings for all the components as perAnnexure- B to Schedule-I separately, indicating time taken for each element of operation, such as loading,clamping of component, cutting operation, un-clamping of component, unloading etc.

1.7.3 The firm should also give the details of band saw speed in meter/min, cutting time per cut, parallelism,

flatness and tolerance of cut-off length achieved clearly indicating assumptions for blade/ material to be cut.

Note: Band saw speed should also be commensurate with the maximum specified cutting speed of themachine and the values permissible with the cutting blade. The bidder should provide chart for study andreference along with the bid.

1.8 Prove-out tests at the manufacturers works

1.8.1 The bidder shall be required to demonstrate the performance/capability and claimed machining time ofthe machine as per clause 1.1 to 1.3 of Schedule-I at manufacturers works during inspection. The prove-outtest shall consist of making 4 nos. of parallel cuts each on 340mm x 340mm (minimum) square and 340mm(minimum) round bars of ASTM A572 Grade 50 steel. However, the material for trial/ tests shall be arranged bythe manufacturer/bidder.

1.8.2 The manufacturer shall be required to demonstrate the cutting time and accuracy on the two nos. ofcomponents listed at S. No. 5 (Axle for BG Coaches to Drg. No. CG-K6015) of Annexure-B to Schedule-I for

consignee listed at Annexure-I to Schedule I. The firm or its authorized agent shall be required to collect thecomponents as per Annexure-B to Schedule-I for prove out from the consignees end as per Annexure-I toSchedule-I against Bank Guarantee from the consignee and also bear the transportation costs. After proveout, material shall be returned along with the machine.

1.9 Prove-out tests at Consignees works

1.9.1 The bidder shall be required to demonstrate the performance/capability of the machine duringinstallation and commissioning of machine by proving out the claimed machining time for 5 nos. each of all thecomponents as listed at Annexure-B to Schedule-I at consignee end. The consignee shall provide all thecomponents for prove out at their end.

2. DESCRIPTIONS AND SCOPE OF SUPPLY

The specification covers design, manufacture, supply, installation, commissioning and prove out ofMetal cutting heavy duty horizontal band saw and related accessories as per parameters given in Schedule-I

and technical details given hereunder. The general electrical equipment shall be in accordance with ScheduleII and other parameters as per Schedule III. It shall consist of all concomitant and other accessories requiredto make the machine fully functional as soon as it is connected to power source at consignees works.

2.2 The total value of the offer will be calculated on-

i. The cost of the basic machine.

ii. Cost of the concomitant accessories according to tender specification.

iii. Cost of any other offered accessory, which in the opinion of supplier is essentially required formaking the Band Saw fully functional and required for performing all desired operations treated as concomitantaccessory.

iv. Cost of installation, commissioning and prove out of components of the machine.

v. Applicable duties and taxes, insurance, freight, training etc.

2.3 Concomitant Accessories: Concomitant accessories should be quoted for consignee at Annexure Ito Schedule-I. Machines shall be accompanied with the following concomitant accessories-

2.3.1 Clamping arrangements for holding of the component on the machine - 01 set

2.3.2 Bi-metallic band saw blades to cut materials/components as specified in Annexure-B to Schedule- Iand as per details given in clause 3.2.4.1 -50 nos.

2.3.3 Maintenance and operator tools (list of items, quantity, description and the name of manufacturer to begiven) - 01 set

2.3.4 Rotating cleaning wire brush for band saw blade. 05 nos.

2.3.5 First fill of hydraulic, coolant, lubricating oils and greases. The equivalent Indian standard for aboveoils should be mentioned. First Fill


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(Note: Lubricants, oils, Coolants, greases etc. shall be from indigenous sources likes IOC, HPCL,BPCL, Castrol etc. Quantity and brand name of each item should be given separately.)

2.3.6 Variable hydraulic pressure controlled vice. - 01 set

2.3.7 Roller conveyor system of 6000 mm length on the charging side and 2000mm cut lengths on thedischarging side for loading and unloading of the components as per clause 3.2.7. - 01 set

2.3.8 Power swarf conveyor with bin for collection of swarf. 01 set

2.3.9 Blade tension meter for periodic checking of Blade tension. 01 set

2.3.10 Foundation fasteners/bolts for installation of machine. 01 set

2.3.11 Electrical Cable required from mains to machine control panel - 10 meter

2.3.12 Any other accessory, which in the opinion of supplier is essentially required for making the band sawfully functional and required for performing all desired operations, treated as concomitant accessory.

2.4 Optional Accessories

2.4.1* Servo Voltage stabilizer for the complete electrical load of the machine as per clause 13.2 of ScheduleII. - 01 no.

2.4.2* Ultra Isolation transformer for the complete electrical load of the machine as per clause 13.3 ofSchedule II - 01 no.

2.4.3 Automatic Preset counter - 01 set

2.4.4 Jib crane along with hoist with ton capacity - 01 set

2.4.5 The bidders may quote for any other accessory, which in their opinion can improve the productivity of

the machine. However, the cost of these accessories should be quoted separately and not included in thebasic cost of the machine, as these may or may not be ordered.

2.5 General and Safety

2.5.1 The machine should have safety features conforming to CE / IS / ISO standards and other applicablestandards.

2.5.2 Built-in work-light with universal attachment to illuminate the work area. The minimum illuminationlevel should be 300 lux or better.

2.5.3 The machine manufacturer must provide suitable warning boards at appropriate locations on machinecautioning operator to use safe practices.

2.5.4 The machine should include a prominently displayed, cutting speed v/s recommended feed chart fordifferent grades of materials to be cut.

2.5.5 The machine should include a suitably located control panel with all the necessary controls.

2.5.6 The machine should incorporate complete protection to the operator and to the machine itself from allpossible operational failures. Suitable interlocking arrangement against faulty sequence of operation duringindividual operation /modes, sudden power failure / fluctuations in supply voltage etc should be provided. Thehydraulically operated work holding device should not loosen its grip even in the event of power failure.

2.5.7 Safety for teeth breaking/wear and tear- There should be provision in the machine e.g. pressurecutting regulator valve /sensor etc. which should be able to sense and adjust the feed automatically so that theblade is safe from getting damaged. Once the hard spot is cut/over, the machine should come to the normalfeed.

2.5.8 Safety for blade slippages- If due to some reason the blade starts slipping from the wheel, themachine should automatically sense it and switch off the drive motor thereby avoiding damage of bladebreakage/wheel disc breakage.

2.5.9 The machine should automatically shut off (drive motor should immediately stop) in case of breakageof band saw blade for the safety of the operator and the machine and an audio visual indication/alarm shouldappear on the control panel.

2.5.10 Noise Limit - The machine offered should be free from vibration and abnormal operational noisewhich should not exceed 85 dB even when working at full rated capacity. The noise level measurement shouldbe carried out at a distance of 1 meter away from the machine as per NMTBA noise measurement technique /ISO 3740-1980 standards / IS: 10988 or other equivalent International standards to be specified in the offer.There shall be no resonant vibrations throughout the working range of the machine at all load levels andworking speeds. The proposed test scheme for carrying out this test and relevant standard to which itconforms may be furnished in the offer.

3. Basic Design Features

3.1 The parameters of the machine should be as per Schedule-I. The electrical features should be as perSchedule II and general characteristics as per Schedule-III.


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3.2 Specific Characteristics

3.2.1 Machine Base and Column

3.2.1.1 The machine base shall be a heavy duty torsion free box construction of stable single piece casting ofhigh grade close grained cast iron like GG25, Meehanite Grade FG 260 conforming to IS 14329: 2000 (orlatest), or be fabricated from steel plates conforming to IS 2062:1999 (or latest) or equivalent InternationalStandard. The structure should be subjected to double stress relieving cycle. The first stress relieving shouldbe done after welding and the second stress relieving should be done after rough machining and before finishmachining. The process followed for stress relieving may be explained. If the machine base is of casting, the

same should also be subjected to stress relieving cycle. The exact stress relieving cycle being followed may beexplained in the offer. The machine base shall be suitably ribbed at all stress points for vibration free operationof the machine under full load. Arrangement for leveling of the bed and securing the anchoring of machine onfoundation should also be provided.

(Note: The tenderer should indicate the details of material composition of castings/steel plates usedfor fabrication, stress relieving cycle and the type of machine used for machining of structure.)

3.2.1.2 The machining of structure should be carried out on precision machines possibly in a single set up toensure proper accuracy of the various surfaces of the frame.

3.2.1.3 The machine base should support the vice, chip collector, coolant reservoir, coolant pump, hydraulicsystem, sawing head and work piece. Hinged access doors or removable panels should be provided tofacilitate servicing and adjusting the internal components.

3.2.1.4 Any gears used anywhere in the machine should be made from high grade alloy steel such as 18 Ni Cr

Mo7 conforming to ISO standard or other equivalent material such as EN 353. The gear should be casehardened to a value of 60+/-2 HRC and ground to an accuracy of DIN 5-6 class or equivalent AGMA class ofaccuracy. Details of gears and makes of gear box (if required) should be furnished in the bid.

3.2.2 Saw Head and Guide Arms

3.2.2.1 Saw head assembly should be made of fabricated steel and should be properly stress relieved. Thesaw head unit should contain the band guides and guide arms, band tension device and saw band on themachine mounting position for accurate alignment. A protective cover should enclose the blade wheels andsaw blades so that a minimum of blade length is exposed for sawing. The cover or guard should have a hingeddoor or other suitable means for providing ready access to blade and wheels.

3.2.2.2 The saw frame should be provided with backlash free linear bearing roller guidance system. The ballbearing should be from reputed make such as SKF/FAG/NTN/TIMKEN/NBC. Frame should have also featuresof automatic height setting, rapid approach of saw frame down to the metal to be cut and rapid return to homepositions after sawing have been completed. The details may please be furnished in the offer.

3.2.2.3 Band guide shall consists of solid carbide or carbide inserts, hardened and ground side rollers on eachside of the saw band, or a combination of these, and carbide back up blocks or roller mounted on LM bearingsof reputed make such as INA/THK/REXROTH STAR/ SCHNEEBERGER. The hardness of carbide back upblock should be 60+/-3 HRC.

3.2.2.4 The distance between saw guides should be optimum so that it does not affect the rigidity of the bed.

3.2.2.5 Saw head should be attached to two guide arms for supporting the band guides which in turn wouldprovide rigidity and stability required for the machine to perform cut off operation. The arms should behardened and ground and should be provided with turcite bearings to reduce friction. Alternatively movementshould be provided on LM bearings guidance. The accuracy of movement should be maintained throughoutthe working life of machine and no maintenance input should be required in the intervening period.

3.2.2.6 Work height pre-selector shall be capable of regulating arm position to desired blade clearance abovework piece. Coolant supply shall be through saw guide inserts for effective cooling.

3.2.3 Blade drive unit3.2.3.1 The blade speed should be infinitely variable. The drive should be provided through the frequencycontrolled AC Induction Motor and drive / controller of reputed makes like Siemens, Fanuc, Mitsubishi orequivalent reputed makes for controlling the speed of blade.

3.2.3.2 Wheels for blade drive should be made of steel casting of GG25/30 grade conforming to DIN standardor equivalent ISO/JIS standard (preferably ductile cast iron). The casting should be suitably heat treated andprecision machined. The band wheel should be flanged type. The diameter of these wheels should beadequate to minimize blade fatigue. The metal driving wheel face and back up flange should be hardened tonot less than RC-45. The materials used and hardness value should be mentioned in the offer.

3.2.3.3 Wheels must be mounted on precision roller bearings of reputed make such as SKF/ FAG/ NTN/TIMKEN/NBC. The class of accuracy and run out of the bearings should be mentioned in the offer. The system


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3.2.7 Roller Conveyer

3.2.7.1 The machine should be provided with a roller conveyor system for support and feeding of thecomponent of 6000 mm length on the charging side and 2000mm cut lengths on the discharging side. Theroller conveyer should be capable to handle components of sizes up to 340 mm square and round bars withweighing capacity up to 5000 kg (minimum).

3.2.7.2 The roller conveyer unit shall be capable of working in the manual, semi-automatic & automatic modeso that by setting in automatic cycle mode, the machine repetitively performs the stock feed and cutofffunctions until pre-set no. of cuts are made.

3.2.7.3 The automatic material feed should be through steel fabricated carriage guided by two hardened andchrome plated ways, fitted with anti friction LM bearing (roller/ball bearing) of reputed makes like THK/ INA/Rexroth star/ Schneeberger and should be powered by hydraulic cylinder,

(Note: Complete details, like height of conveyor system, the clamping arrangement offered, diameter/ material/hardness of rollers etc., should be furnished along with the offer.)

3.2.8 NC/ PLC and Working Cycle Control System

3.2.8.1 All-important controls should be ergonomically designed and centralized on a control panel to ensureminimum fatigue to the operator.

3.2.8.2 NC/PLC Control System should allow operation in manual, semi-automatic & fully automatic modes.Suitable push button/selector switches should be provided for these modes and also for start/stop operations.

3.2.8.3 The machine NC/PLC Control System should allow adjustment of feed rate, feed force and speed ofthe band.

3.2.8.4 The machine should be provided with depth control device to sense the depth, while cutting the

component, which is interfaced with the NC/PLC Control System so that the machine automatically stops atthe desired depth of cut. The depth control system provided should be detailed in the offer.

3.2.8.5 The machine should be provided with the adjustment of vice jaw pressure to suit the component to beclamped by means of NC/PLC Control System.

3.2.8.6 The machine should be provided with Digital display on screen/ control panel and controlled throughfeed back device of reputed make such as Heidenhain/ Siemens /Fagor/ Balluf etc to display the length of thecomponent to be cut. The firm should furnish the actual details, i.e. make, resolution, accuracy of measuringsystem provided

3.2.8.7 NC/ PLC Controllers and AC Frequency/Drive Controllers should preferably be of Siemens, Fanuc,Mitsubishi & Messung etc make.

3.2.9 Electrical system

3.2.9.1 AC Induction motors should have F class insulation and should be from reputed make i.e. Siemens,Fanuc, Kirloskar, Bharat Bijlee, Crompton Greaves, ABB, and NGEF only.

3.2.9.2 The electrical control cabinet should have IP55 degree of protection and should be of reputed makesuch as Rittal / Siemens.

3.2.9.3 The control gear should be of reputed make such as Siemens/L&T/ABB/ Telemechanique.

3.2.10 Chip Removal System

3.2.10.1 Suitable chip removal system from the gullets of the band teeth should be through hydraulic/electricmotor driven band brush. In case of electric driven, there should be adequate protection to prevent ingress ofcoolant with provision of automatic stop after brush is worn out. The power chip brush should be synchronizedwith band saw speed. The diameter of brush and other details of chip removal system should also beexplained in the offer.

3.2.10.2 It should be possible to operate the chip removal system in auto/ manual mode by push button switch.

3.2.11 Coolant System

3.2.11.1 Suitable coolant system to cool blade tips and wash away the chips from the working area should be

provided. The coolant system should consists of a coolant tank of adequate capacity and a PLC controlledheavy-duty coolant pump with filters, flushing hose, necessary piping and sump etc. to deliver requiredquantity of cutting oil at the point of blade entry shall be provided. The coolant reservoir shall rest directly onthe floor under the machine. The reservoir should be easily accessible for thorough cleaning. The detailsshould also be clearly indicated in the offer. Viscosity of the cutting fluid recommended should also bementioned in the offer.

3.2.11.2 A curtain cutting fluid should be provided to ensure availability of abundant and uniform supply offluid to band saw and work. It should also be possible to control the amount of cutting fluid i.e. flow rate (Qty. &grade of cutting oil to be given in the offer).

3.2.11.3 It should be possible to operate the coolant system in auto/manual mode by push button throughPLC.


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3.2.12 Lubrication

3.2.12.1 All continuous sliding and rotating surfaces shall be oil/grease lubricated by means of centralizedlubrication system of reputed make such as Cenlub/Rexroth/Vogel etc. The details of lubrication systemoffered shall be explained in the bid. Lubricants for f irst fill shall be supplied along with the machine.

3.2.13 Hydraulic System

3.2.13.1 The hydraulic system elements such as pump, various type of valves, hydraulic cylinders andpistons, manifold, sub plates etc. should be only from reputed manufacturers such as Bosch-Rexroth, Vickers,Yuken, ATOS conforming to DIN/ISO standards. It should be noted that elements of other makes would notbe acceptable.

3.2.13.2 The hydraulic system layout should be as per ISO 4400/4401 or DIN24346/24340.

3.2.13.3 An energy efficient variable displacement pressure compensated pump should be provided for all thehydraulic functions. The pump should be protected with a non-return valve to avoid damages in case of malfunctioning of the system.

3.2.13.4 The hydraulic system should be provided with strainer of 10-25 micron size on suction side and filtersof 125-150 micron size on delivery side/return line. The filter should have minimum working life of 2000 Hrs. orhigher. Please specify manufacturer, brand name, filter size, indigenous or imported and maximum working lifebefore replacement is required.

3.2.13.5 The maximum hydraulic oil temperature should be kept upto 600C even under the highest ambient

temperature conditions of 48oC. The means available on the machine to keep the hydraulic oil temperaturewithin this limit, while the machine is continuously working in double shift at maximum ambient temperature

should be explained. Heat load calculation chart must be furnished in support of the claim regardingmaintenance of hydraulic oil temperature within the limit of 60

0C with or without oil cooler. In case of

requirement of oil cooler, the oil cooler should be air-cooled type of reputed make such as Rittal/ Kelvin/Emmegi. The firm should indicate the make/model no. of air cooler.

3.2.13.6 Oil level sight gauge or suitable equipment showing the minimum and maximum oil level in the tankshould be provided. The indicator shall have marking to show the lowest and highest permissible oil levels forthe convenience of the operator. In addition, an oil dipstick with graduated marking clearly indicating minimum& maximum permissible oil levels to be provided. A drain plug at the lowest point of the hydraulic tank shouldbe provided so that oil can be drained out without disconnecting any pipe or connection.

4. TECHNICAL LITERATURE

4.1 One copy of the printed illustrative catalogue showing features of the machine and its elements mustbe enclosed with each copy of the bid.

4.2 The successful tenderer will have to furnish (for each machine) 4 copies of spare parts catalogue givingthe part list number of each component and assembly drawings, maintenance manual, trouble shooting guideincluded ladder diagram for PLC Program, operational manual of the machine and all electrical circuit diagrams& electronics circuit diagrams and operational manual of the machine to the consignee directly within 3 months ofthe issue of contract. The bidders should provide a list of literature, they will supply along with the machine. Thetechnical literature shall be provided for complete machine including imported and indigenously purchasedcomponents/sub-assemblies.

(Note: All the literature should at least be in English language.)

5. SPARES

5.1 Since the machine will be under comprehensive maintenance during warranty period , the purchaserreserves the right to order only urgent essential spares. The cost of spares and their purpose should thereforebe clearly quoted and indicated. Description of spares offered with machine should be properly identified withpart no. mentioned in the maintenance manual.

The bidder shall quote for both perishable/consumable and non perishable/consumable spares. Thesespares will cover the complete range of mechanical, hydraulic, electrical, electronics & drive controllers in theformat given as below:.

5.2 The bidder shall quote the current cost/rate and undertake to provide maintenance spares* (as & whenordered) after the expiry of the warranty period for X years (life of machine7 years) including the maintenancespares required for the bought out sub assembly and parts. These spares must be quoted as per the formatgiven below:-

S.No. Description Quantity Unit Rate Purpose Lead Time Labour #/Service charges

S. No. Description Quantity Unit Rate Purpose


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*the parts prone to obsolescence also to be quoted

# The labour & service charges for repair involving particular spare to be quoted

This list is only for reference purpose.

6. SPECIAL FEATURES

6.1 Tenderer should indicate separately special features, if any, incorporated into the machine and alsoclearly indicate the advantages of such features.

7. DEVIATIONS

7.1 The tenderer should certify that the machine offered fully meets the specifications. Various designfeatures incorporated in the machine to fulfill different technical performance requirements shall be fullyexplained in the offer. However, minor deviations from these specifications which do not affect or in any wayinterfere with the stipulated performance standards or would result in improved safety/reliability or wouldreduce recurring maintenance/operating cost of the machine, can be considered for acceptance as per thefollowing format:-

Sl.No.

Clause/ Item Brief Description Dviation Justification for deviation

8. INSPECTION OF EQUIPMENT AND TESTING AT MANUFACTURER'S WORKS

8.1 Manufacturer must have suitable facilities at their works for carrying out various performance tests on thesub-assembly/assembly/machine. The tenderer should clearly confirm that all the facilities exist and shall bemade available to the inspecting authority.

8.2 A sample inspection chart for inspecting the equipment should be supplied along with the bid. Theinspection charts should indicate all the tests that are carried out during the machine manufacture and also thetests to be offered to the inspection agency. For each test, standard acceptable range/limit of values also to beindicated.

8.3 The tenderer will submit quality assurance plan being followed at the manufacturer's works forensuring quality of the products offered in general and that of fabrication of the structures, manufacturing ofhydraulic system components.

8.4 Authorized inspection agency will carry out the inspection of capability test & prove out of claimedmachining time of components at manufacturers premises as per clause 1.8.1/1.8.2.

9. TRAINING

9.1 Technical experts from the manufacturer will provide free of cost training to operators and maintenancestaff nominated by the consignee during commissioning of the machine. The training will be in operation,programming (if any), maintenance of the equipment ordered and will include troubleshooting and repair of themachine and accessories. The training to be imparted will cover all mechanical, hydraulic, electrical andelectronic equipment.

10. FOUNDATION & RELATED DRAWINGS

10.1 SUBMISSION OF GA FOUNDATION & RELATED DRAWINGS FOR APPROVAL:

10.1.1 For each machine, the supplier shall first submit 01 copy of foundation drawings with details ofconstruction of foundations, complete layout of machine elements like bed, hydraulic tank, coolant tank,electrical panel and other related diagrams (Mechanical, Hydraulic, Electrical & Electronics) along withmachine weight, overall dimensions, electrical load with length of 3 phase, 415 V AC electric power cable forapproval within 04 weeks of the receipt of contract to each consignee for approval and to enable theconsignee for making necessary arrangements for Installation & Commissioning of Machine on receipt. Aftergetting approval from consignee, the supplier shall supply directly to each consignee 6 copies of approved GAfoundation drawings and related diagrams for each machine within 04 weeks from the date of obtaining the

approval. This information should be furnished on the pattern indicated in detail in the following ISSpecifications (Latest) or relevant international standards

i) IS: 2974 (Pt.I Para 4.1) for reciprocating type machine.

ii) IS: 2974 (Pt.III Para 3.1) for rotary type machine (medium & high frequency.

iii) IS:2974 (Pt.IV para 4.1) for rotary type machines of low frequency.

iv) IS: 2974 (Pt.V para 3.1) for impact type machines other than hammers.

10.2 APPROVAL OF GA FOUNDATION & RELATED DRAWINGS:

10.2.1 The consignee shall either approve the GA drawings or if necessary return them to thesupplier/contractor for correction within 02 weeks of its receipt from the supplier/contractor, under clearsignatures with date. The complete process for the approval & supply of correct GA drawings shall not exceed04 weeks from the date of submission as specified in the time schedule of the contract. In case of delay on


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part of consignee in approval of drawings, the supplier/contractor will report the matter to COFMOW forimmediate intervention and redressal.

10.3 DISPATCH OF THE MACHINE FROM MANUFACTURER WORKS:

10.3.1 For machine being ordered, the supplier and consignee will ensure that the necessary facilities asdefined in AT for commissioning of the machine at the site i.e. Concrete floor of sufficient thickness (250mm to300mm), 3 phase, 415 V AC electric power, water, compressed air connections etc. are ready for dispatch ofthe machine. The supplier shall dispatch the machine only after all the on-site requirements from suppliersside as well as consignees side, for installation and commissioning of the machine on arrival, have been made

ready. The consignee shall record a joint note certifying this. This joint note shall accompany Receipt Note andthe bill for 80% payment.

10.3.2 In case of delay on part of the consignees in providing the clear site for construction of foundation orany other facility as specified in the contract to the supplier, the supplier will report the matter to COFMOW andconsignees. In case of delay in readiness of site on part of consignees, COFMOW shall take up the matter withconcerned Railway/ PU.

11. INSTALLATION AND COMMISSIONING (TURNKEY BASIS) & PROVING TESTS

11.1 Joint Check: The contractor or his agent would be required to carry out a joint check at theconsignees end, along with the consignee, before unpacking is done, to avoid subsequent complaintsregarding short shipment/transit damages. It is necessary that consignee to avoid commissioning delays dueto shortages/transit damages do this joint inspection immediately on receipt of the machine. The consigneeshall record a joint note certifying this. This joint note shall accompany Receipt Note and the bill for 80%payment.

11.2. Responsibilities of Consignee and Bidder11.2.1 The consignee shall be responsible for-

i. Provision of a clear covered site for construction of foundation as per the schedule given by the supplier toensure its readiness before arrival of machine at site.

ii. Electricity, water and compressed air, free of cost.

iii . In case a road mobile crane has to be arranged by the supplier for material handling, a clear approach for itup to the site has to be provided.

iv. Clear covered space for storage of material/equipment required for working/ construction of foundation andinstallation of the machine etc.

11.2.2 The bidder shall be responsible for-

i. Design of foundation as well as flooring (if required) of sufficient thickness, suiting local soilconditions at the site.

ii. Advise consignee in time regarding schedule for requirement of clear site for construction of foundation andother infrastructure, resources & facilities required.

iii. Construction of foundation as well as flooring (if required) of sufficient thickness suiting local soil conditions,

for machine shall be completed by the bidder at the site provided by the consignee before receipt of themachine at their premises.

iv. Provision of all tools and equipment, technical and unskilled manpower, material handling accessories/

equipment and material for installation and commissioning.

v. The installation and commissioning of the machine shall be completed within 30 days from the date ofreceipt of the machine at site.

vi. Unloading of the machine on receipt and its movement to the site of installation.

11.3 Consignee will provide only 415 V10%, 3 phase 50 Hz AC supply at a single point (mains). Electrical

work like laying of power/electrical cables & earthing wires from mains to machine control panel (upto 10meters) as well as within the machine, with supply of all materials shall also be carried out by the supplier. Thesupplier shall separately quote a rate per meter for extra cabling if required at site, which will not be included inthe evaluation but will be paid after certification from consignee.

11.4. The bidder shall commission & demonstrate machine performance and prove out the claimedcapability for successful commissioning of the machine at the consignees works as per clause 1.8 ofTechnical Specification (i.e. Section-III). Machine shall be considered commissioned only after successfulproving out of the components mentioned at Annexure B to Schedule-I. After such successful demonstration /commissioning /prove out as herein before the consignee shall take over and watch the machine performancefor a period of one month (apart from commissioning & prove out period as per S.N. 11 of Schedule-VI). Then,the final proving test certificate is to be issued by the consignee.


10/33


11.5 If an assembly/sub-assembly requires to be taken back to the manufacturers premises forrepair/replacement either before commissioning or during warranty, the manufacturer or his agent would berequired to submit an indemnity bond. In case the entire machine has to be taken back, a Bank Guaranteewould have to be submitted. The indemnity bond/bank guarantee should be of adequate value so as to coverthe cost of the assembly/sub-assembly/paid up cost of the machine.

12. REFERENCES

12.1 The tenderer should provide satisfactory evidence, acceptable to the purchaser to show that he is alicensed manufacturer and has adequate plant and manufacturing capacity and has a "Quality Assuranceprogram."

12.2 The firm shall have supplied 03 nos. of quoted model or machines of similar size/complexity (cuttingdia) during last 5 years. Supply of similar machines of size bigger than that quoted for will also be acceptablefor fulfillment of this requirement. Bidder should furnish a statement giving a list of supplies made by him in thelast 5 years as per given format:

Name ofpurchaser withpostaladdress

Name ofcontactpersonwith desig-nation

Phone/ faxnos./ e-mailID of contactperson

Year and dateof commi-ssioning ofthe machine

MaximumCuttingcapacity(in mm)

CuttingAccuracy &parallelism(in mm)

AC MotorPowerin kNm/ KW

Out of the machines supplied in the last 5 years, one machine as offered in this tender should beworking satisfactory for last one year as on the date of opening of tender. Performance certificates of theoffered or similar machines must be enclosed with clear signature and address of the firm where it is installedand commissioned. The performance certificate shall not be older than 6 months from the date of opening of

tender.(Note: In the absence of the above information, the bid is liable to be rejected.)

13. COLOUR

13.1 The machine and its accessories shall be painted in Apple Green Color No. 281 to IS:5-1978 or anyother equivalent color as per other International Standards (if any specific color code standardized by BIS isavailable, the same be given). The exact color and the Standard to which it conforms may please be indicated inthe offer.

14. BOUGHT OUT ITEMS:

14.1.1 The bidder shall furnish along with the offer a list of all critical items/ sub-assemblies which are boughtout by the bidder and proposed to be used, along with the manufacturers name, brand model etc as perAnnexure C to Schedule-I. The successful bidder may be required to produce invoices to ensure genuinenessof such products / verification by the Inspecting agency.

14.2 The bidder should clearly indicate that in case of components/sub assemblies taken from reputedcompanies such as Vickers, Rexroth, RITTAL, THK, and Shenburger etc. The parent company has alreadyentered into contract with their Indian units/affiliates for undertakings repairs/after sales service during warrantyand post warranty.

S. No. Sub-assembly Make1. PLC Siemens/Fanuc/Mitsubhishi/Messung

2. Hydraulic system/elements Rexroth/Vickers/Yuken/Atos/Parker3. Ball screws Rexroth Star/INA/THK/Shenburger/Korta4. Bearings FAG/SKG/Timken/NTN/KOYO5. Lubrication System Cenlub/Dropco/Vogel/ Rexroth6. Electrical Control Cabinet RITTAL/ Siemens or of other reputed make with IP55

Protection level7. Frequency/Drive Controller Siemens/Fanuc/Indramat

15. TIME SCHEDULE CHART: The bidder shall furnish the information as required vide Schedule - VIalong with the offer.


11/33


SCHEDULE-I

Specification No. COFMOW/HHDMCBS/340 x340 mm /2010 Rev-II

1. Major Parameters

1.1 Cutting capacity (Square) 340 mm x 340mm

1.2 Cutting capacity (Round) 340 mm

1.3 Cutting Accuracy and parallelism 0.1 mm / 100mm.

2. Other parameters

2.1 Band speed (infinitely variable) 20 to 100 meters/min.

2.2 Smallest diameter that can be cut 8 mm

2.3 Table Capacity 500 Kg. (Minimum)

2.4 Band saw AC drive motor power 5.6 kW

Note: No deviation will be allowed in major parameters (at 1.1 to 1.3 above).

Annexure-A To Schedule- I

Bidders should supply the following information about the offered machine

1. Table size mm2. Height between table & base floor mm (approx.)

3. Motor Power

a) Hydraulic pump drive kW

b) Coolant pump drive kW

4. Saw wheel diameter mm

5. Saw blade dimensions (LxWxT) mm

6. Pitch of band mm

7. Rake angle of band mm

8. Width of cut mm

9. Cutting rate cm3/min

10. Tool life min.

11. Coolant tank capacity Ltrs.

12. Hydraulic tank capacity Ltrs.

13. Diameter of saw band cleaning brush mm

14. Machine overall dimensions mm

15. Net weight of the machine kg

16. Maximum weight of work piece that can be kg

Accommodated on the table

17. Max. Pressure and flow rate of hydraulic pump Bar & liter/minute

18. Total connected electrical load in kVA

19. Distance between saw guides mm

20. Surface finish achieved in micron

21. Max. opening of vice mm

22. Height of jaw of vice

a) X-direction indexing stroke mm

b) Y- direction indexing stroke mm

23. Model of the quoted machine


12/33


Annexure B to Schedule- I

The following components are loaded on Heavy Duty Metal Cutting Band Saw Machine:

S.No. Description of Component Material Specification Remarks

1. Stainless Welded Pipe10x5000mm

ASTM-A312 Schedule 40s,Grade TP-304 (ERW)

2. Mild Steel Square Tube45x45x2.9 mm in length of

5400mm

IS: 4923-1985, HF SHS YST-240

3. Pipe 42x2 mm in length of6000mm

DIN 2391-C-DIN 17456 Grade1.4301 (X5 Cr Ni 1810) NBK 3.1 B

4. Aluminum Pipe 71x3.15mm inlength of 2700mm

IS: 2673-1979

5. Axle for BG Coaches to Drg.No. CG-K6015

IRS: R-16/95 To be cut at 04 differentlocations with diametersvarying from 130mm to183mm.

Annexure-C to Schedule -I

List of Consignee

SL.

NO.

CONSIGNEE KEY No. QUANTITYREQUIRED

1. Dy. Chief Plant Engineer- I

Rail Coach Factory,

Kapurthala-144602,Punjab

209288 1 no.


13/33


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14/33


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15/33


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16/33


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17/33


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18/33


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2.4 fo|qrjks/kh dh Js.kh

2.5 'kksj vfLFkjrk vkSj ikoj ykbu dsmrkj&p


19/33


SCHEDULE-II

GENERAL SPECIFICATION (ELECTRICAL)

1. The provision of this General Specification shall apply.

2. All equipments and material shall comply with appropriate Indian Standards (latest) orNational Standards of the country of origin provided the latter are equivalent to do betterthan the former. For items for which Indian Standards are not published, NationalStandards shall be acceptable. The tenderer shall indicate the Standards applicable. The

following standards are applicable in particular.(Corresponding International Standards like ASA, NEMA, BSS, DIN etc. may also bequoted).

IS : 325-1979 (latest) - Three phase induction motors (corresponding to IEC pub-34-1) (Latest).

IS : 1248 (Latest) - Direct acting indicating analogue electrical measuringinstruments and their accessories (corresponding to IECPub-51) (Latest).

IS : 1231-1974 (Latest) - Dimensions of three phase induction motors (correspondingto IEC Pub-72-1) (Latest).

IS : 1271-1985 (Latest) - Classification of insulation material for electrical machinery

& apparatus in relation to their thermal stability in service(corresponding to IEC-Pub-85) (Latest).

IS : 6875 (Latest) - Push Buttons and related control switches corresponding toIEC Pub/73) (Latest).

IS : 375-1963 (Latest) - Marking and arrangement of switch gear, bus bars, mainconnection & auxiliary wiring.

IS : 996-1979 (Latest) - Single phase small AC and universal electrical motors.

IS : 1356 (Latest) - Electrical equipment of machine tools.

IS : 2516 (Latest) - Circuit breakers (corresponding to IEC Pub-56) (Latest)

3. Unless specified in the main specification, the AC motors and starters shall be of thefollowing type. Tenderer is, however, free to give alternative proposal along withjustification, if in his view alternative proposal in warranted by site conditions. Type ofmotor type of starter.

TYPE OF MOTOR TYPE OF STARTER

3.1 Any type of AC motor starting current of which doesnot exceed 75 amps.

Direct on line.

3.2 AC squirrel cage, introduction motors, starting currentof which is above 75 amps. if started direct on line

Star delta or Auto transformertype.

3.3 AC slipring type motor Resistance type air/fan Cooled

3.4 AC synchronous or synchronous induction motor. Suitable makers standard.

3.5 DC motor Resistance type/Thyristor type.

4. The control gear for AC/DC motors shall incorporate the following protection devices asconcomitant accessories.

4.1 No Voltage Protection - No voltage protection shall be provided so that machine will notstart up again by itself when, following an interruption the supply is restored.


20/33


4.2 Short Circuit Protection - To protect against short circuits due to insulation failure offaulty connections HRC fuses shall be provided for each motor. The rating of the fuseshall be such as to take care of the over current due to motor starting.

4.3 Over Load Protection - To prevent motors from overloading, overload protection shall beprovided separately for each motor. Three phase motors shall be protected by overloadtripping devices on each phase.

4.4 Single Phasing Protection - A separate current sensitive delayed action single phasingpreventor shall be provided for each motor separately. Overload protection shall not be

treated as single phasing preventor.5. Control equipment shall be mounted in separate drip proof enclosures. Control enclosures

and compartments are to be so designed as to give adequate protection against ingressof dust, oil, coolant or chips. All control devices like contractors etc. shall be front mountedon a rigidly fabricated metal panel for ease of operation. All other electrics shall beinstalled that they are readily accessible when the doors and covers are opened. Hingedcovers shall be interlocked with the machine tool control to prevent operation of themachine when cover is open.

6. The motor shall be totally enclosed with or without fan cooled frame. Screen protecteddrip proof type motor may be provided if it is mounted inside protective enclosures.

7. The electrical equipments shall comply with the requirement of Indian Electricity Act andRules.

8. All instruments shall be of the Industrial Grade A (IS-1248) switch board type the rangeof the instrument shall be such that the maximum load expected in the circuit shallproduce a deflection of 60% to 80% of the full scale.

9. The supplier shall furnish 3 sets of complete electrical and electronic wiring diagrams infull details to enable the maintenance staff to locate faults in the circuits, 3 sets of partcatalogues, maintenance manuals operating instructions with details of coils andwindings, used in the equipment to facilitate repairs and maintenance should also besupplied.

10. For main motor class B insulation shall be provided. If any other class of insulation isproposed, detailed justification for providing different class of insulation shall be given.

11. Motors shall be designed to withstand frequent starts, stops and reversals as demandedin the operation of the machine.

12. Two earthing terminals shall be provided on all electric motors including the control gear.13. POWER SUPPLY

13.1 The machine shall be suitable for operation on 415 volts 3 phase 50 cycles AC 3 wire or 4wire system with neutral solidity earthed. The supply voltage may very upto + 10%. Thefrequency may vary upto + 3%. However, full rated power of the motor shall be availableat the lower voltage. Voltage stabilizer as specified against clause 13.2 below shall not berequired for machine having electrical motor power requirement upto 30 KW.

13.2 In case of machine not equipped with NC, CNC and thyristor controlled devices a suitableservo controlled voltage stabilizer of adequate capacity to cater for entire electrical load ofthe machine having electrical load requirement exceeding 30 KW shall be offered alongwith machine as a concomitant accessory. Voltage stabilizer from reputed sources,subject to confirmation by COFMOW, is acceptable. The voltage stabilizer shall conformto :

i) Input Voltage - 320 to 460 volts 3 phase 4 wire unbalanced supply.

ii) Out put Voltage - 415 volts

iii) Regulation - + 1% from No load to Full load.

iv) Rate of correction - 20 volts per second per phase.

v) Wave from distortion - NIL

vi) Efficiency - Not less than 97%.

vii) Winding and class ofinsulation

- Copper wire wound with B class of insulation or better.


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13.3 In case of machines equipped with NC,SS, CNC, Thyristor controlled devices and othersophisticated electronic gadgets including microprocessors etc. which are susceptible topower line spikes and surges, a suitable voltage stabilizer and ultra isolation transformerof adequate capacity to cover for the entire electrical load of the machine shall be offeredas a concomitant accessory conforming to Specification for voltage stabilizer asmentioned in clause 13.2 above and isolation transformer to the parameters mentionedbelow. Indigenous make voltage stabilizer and isolation transformer from the reputedmanufacturers are acceptable.

i) Transformer ratio - 1:1

ii) Winding - Copper wire wound with B class insulation or better.

iii) Protection - To arrest spikes and surges to the order of 3 KV for 200-400 micro seconds duration.

iv) Common mode noiserejection

- 120 dB

v) Isolation - Capacitance 005 Pf: resistance greater than 1000 MegaOhms.

13.4 Voltage stabilizer shall be equipped with a protective relay to trip to trip the AC powersupply to the machine instantaneously with audio and visual indication to the operator.Settings of the protective relay for low and high voltage shall be 320 volts and 460 voltsrespectively. Protective relay shall be provided as concomitant accessory on themachines having electrical load below 30 KW.

14. ATMOSPHERIC CONDITIONS

14.1 The ambient temperature at the site at which the machine will be installed may vary from+0 degree C. to +50 degree C. over the year. The relative humidity may be as high as100%. The atmosphere is expected to be dusty. The machines offered shall be suitablytropicalised to work under these atmospheric conditions without any adverse effect ontheir performance.

15. The temperature rise shall not reach such a value that there is a risk of injury to anyinsulating material or adjacent parts.

16. The drive shall be capable of operating at any one of the speed required independent ofthe load in accordance with the requirements of the machine.

17. The enclosed Annexure A, B & C gives technical data which shall be completed andsubmitted with the tender, separately for each motor/control gear.


22/33


ANNEXURE A TO SCHEDULE-IITECHNICAL PARTICULARS OF A.C. MOTORS AND CONTROLL GEARS

1. MOTOR

1.1 Manufacturers Name

1.2 Type of enclosure

1.3 Type of duty (Ref. IS: 325) (Latest)

1.4 Rating-Continuous/intermittent

1.5 Output (KW/BHP)

1.6 AC voltage across phases, number ofphases & frequency.

1.7 Speed in RPM

1.8 Class of insulation

1.9 Normal full load current

1.10 Starting current

1.11 Maximum current at the time of change overfrom lower speed to higher speed

1.12 Type of motor-Squirrel cage/slipring (woundrotor)

1.13 Temperature rise of windings and otherparts allowed above an ambienttemperature of 50 degree C.

1.14 Frame size of motor

1.15 End use of motor

2. CONOTROL GEARS


2.2 Type of control gear (Direct on line/StarDelta/Auto-transformer etc.)

2.3 Rating of starting gear in KW & amps.

2.4 Are the following provided :

2.4.1 Short circuit protection

2.4.2 No volt trip

2.4.3 Overload trip

2.4.4 Delayed action current sensitive singlephasing preventor

3. Standard specifications to which the motorcontrol gear and its ancillary offeredconform to

4. Any other special features.


23/33


ANNEXURE B TO SCHEDULE-II

TECHNICAL PARTICULARS OF D.C. MOTORS AND CONTROLL GEARS

1. MOTOR


1.2 Type of enclosure

1.3 Type of duty (Ref. IS: 4722) (Latest)

1.4 Rating-Continuous/intermittent

1.5 Output (KW/BHP)

1.6 DC voltage across phases, number ofphases & frequency

1.7 Method of excitation whether shunt,series, compound or separately excited, ifseparately excited state excitationvoltage.

1.8 Speed in RPM


1.10 Normal full load current in amps.

1.11 Starting current

1.12 Temperature rise of windings and otherparts allowed above an ambienttemperature of 50 degree C.

1.13 Frame size of motor

1.14 End use of motor

2. CONOTROL GEARS


2.2 Type of control gear (Direct on

line/Resistance type/Thyristor type)

2.3 Rating of starting gear in KW & amps.

2.4 Are the following provided:

2.4.1 Short circuit protection

2.4.2 No volt trip

2.4.3 Overload trip

3. Standard specifications to which themotor control gear and its ancillary offeredconform to

4. Standard specification to which control

gear conforms to

5. Any other special features.


24/33


ANNEXURE C TO SCHEDULE-II

TECHNICAL PARTICULARS OF VOLTAGE STABILIZER,ULTRA ISOLATION TRANSFORMER

1. VOLTAGE STABILIZER


1.2 Type of voltage stabilizer :

a) DC servo motor type

b) AC servo motor type

c) Solid state

1.3 Rated capacity in KVA

1.4 Nos. of phases & frequency

1.5 Type of input supply unbalanced

1.6 Input voltage

1.7 Output voltage

1.8 Rate of correction

1.9 Class of insulation & winding (onlycopper wound is acceptable)

1.10 Type of control circuitry

1.11 Class of duty

1.12 Type of cooling

1.13 Indicating instruments and their ranges

1.14 Safety features

2. ULTRA ISOLATION TRANSFORMER


2.2 Rated capacity

2.3 Ratio of input/output voltage


2.5 Arrangement for suppression of powerline surges, spikes, transients andnoises

2.6 Type for cooling.


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vuqlwph&IIIlkekU; fofk"Vrk,

1. n


26/33


2.6 xkMZ rFkk laj{k.k }kjk dk;Zjr O;fDr;ksa dks xfrkhy Vkalfeku iqtksaZ tSls iqYyh] csYV~l] fx;lZ] jSd rFkkfifu;u] 'kkWV vkfn rFkk vU; xfrkhy iqtksaZ ds] tks izfdz;k ls lh/ks lEcfU/kr gksa] tksf[keksa ls ;Fkk lEHko

laj{k.k iznku fd;k tk,A

(i) budh lajpuk lUrqfyr gksA(ii) buds }kjk vU; tksf[ke mRiUu u gksaA(iii) bUgsa fuf"; ;k izHkkoghu djuk ljy u gksA(iv) [krjs ds {ks= ls mfpr nwjh ij fLFkr gksA(v) mRiknu izf;k ds ifjn; esa de ls de ck/kk mRiUu djsaA(vi) n


27/33


7.2 'khryd dks iwfrZ i;kZIr ek=k esa gksuh pkfg, 'khryu dks iquZforfjr djus d izcU/k gksuk pkfg,A fpi rFkk'khryd dks ,d Vs dk izko/kku gksuk pkfg,A 'khryd /kkjk dks ek=k dk ladsr gksuk pkfg, ftlsiquO;ZfLFkr fd;k tk ldsA

7.3 'khryd ds ekhu&{ks= ls ckgj QSyus ls jksdus ds fy, ,d ?ksjs ,uDykstj dh O;oLFkk gksuh pkfg,A ?ksjsdk C;kSjk miyC/k djk;k tk,xkA xzkbafMax ekhuksa vkfn ds fy, 'khryu iz.kkyh dh fofk"V vko;drkvksadk Li"V mYys[k gksuk pkfg,A

8. Lusgd yqfczdsku iz.kkyh tgk ykxw gks

8.1 fujUrj Lusgu dh vko;drk okys Hkkxksa esa i;kZIr ek=k esa iwfrZ fufpr djus ds fy, ekhu esa LopkfyrLusgu iz.kkyh dh O;oLFkk gksuh pkfg,A Lusgu iz.kkyh dh [kjkch dks nkkZus ds fy, mi;qDr izcU/k gksukpkfg,A

8.2 Lusgu iz.kkyh ds [kjkc gksus dh fLFkfr esa ekhu ds ifjpkyu@pkyw gksus ls jksdus ds fy, iz.kkyh esabaVjykWd dh O;oLFkk gksuh pkfg,A

8.3 fpIl] /kwy&d.k vkfn dks fQYVj djus ds fy, iqu% iz;ksx fd, tk ldus okys fQYVjksa dk izko/kku gksukpkfg,A fQYVj esa :dkoV dh fLFkfr dks nkkZus ds fy, ladsru miyC/k gksuk pkfg,A ;fn iqu% iz;ksx fd,tk ldus okys fQYVj miyC/k u djk, tk ldsa rks fQYVj dkVZfjt Hkkjr esa rS;kj :I ls lqyHk gksukpkfg,A lIykbZ ds L=ksr dks nkkZ;k tkuk pkfg,A nks o"kZ dh vof/k ds fy, nks fkVksa esa lapkyu ds vk/kkjij i;kZIr ek=k esa vfrfjDr fQYVj nsuk izLrko esa lfEefyr gksuk pkfg,A

8.4 Lusgu rFkk fQYVj&lQkbZ pkVZ /kkrqdks ,d IysV ij ekhu ds ,d fofk"V Hkkx ij iznfkZr gksuh pkfg,Atks fuEufyf[kr dks nkkZ,%&

d ekhu ds ,sls fofk"V LFky] ftUgsa rsy@Lusgd@xzkst nsuk visf{kr gksA

[k bu LFkyksa ds Lusgu dh vkof/kdrk ihfj;ksfMflVh

x lQkbZ fd, tkus okys fQYVj

?k fQYVjksa dks lQkbZ dh vkof/kdrk

M- dsUnzhr iz.kkyh ds fy, Lusgd dh iquiwZfrZ dh vof/k

p blh izdkj dh dksbZ vU; laxr lwpuk

8.5 ,sls LFkyksa dk] ftUgsa gkFk }kjk Lusgd yxkuk vko;d gks] iFkd :i ls mYys[k fd;k tkuk pkfg,A Lusgudh ckjEckjrk dk Hkh Li"V mYys[k gksuk pkfg,A

8.6 e'khu esa iz;qDr Lusgd rsy Hkkjr esa miyC/k gksuk pkfg,A lQy fufonkdkjksa dks fofHkUu Hkkjrh; rsydEifu;ksa }kjk mRikfnr ,oa Lohfr izkIr rsy dk ekdkZ] uke lwfpr djuk gksxkA

8.7 ekhu esa iz;qDr Lusgd rsyksa dk izFke rsy&Hkjko ekhu ds lkFk gh fn, tkus dk izko/kku gksA Lusgu iz.kkyhds foLr`r C;kSjs dk mYys[k fd;k tkuk pkfg,A

9. ok;qnkch U;wesfVd iz.kkyh tgk ykxwgks

9.1 xzkgd }kjk ekhu ij ,d gtkj ih0ih0,e0 vknzrk vak dks rFkk4.5 7.5 fd0xzk0 ls0eh0 nokc&jsat dkslEihfMr ok;qiwfrZ dh tk,xhA ekhu ds ok;qnkc U;wesfVd iz.kkyh dk vfHkdYiu rnuqlkj fd;k tkukpkfg,A de ok;qnokc ds fy, ,d vykeZ dh O;oLFkk Hkh gksuh pkfg,A

9.2 ok;qnkch U;wesfVd ok;q vUrxZg.k iz.kkyh esa mi;qDr fQYVj@ueh VSi dh O;oLFkk fufonk }kjk dh tk,xhAfQYVj iqu% iz;ksx fd;s tk ldus okyk] nskh rFkk lqyHk gksuk pkfg,A ;fn iqu% iz;ksx fd, tk ldus okyk

fQYVj miyC/k u djk;k tk lds rks fQYVj dkVZfjt Hkkjr esa rS;kj :i esa lqyHk gksuk pkfg,A lIykbZ dsL=ksr dks nkkZ;k tkuk pkfg,A nks o"kZ dh vof/k ds fy, nks fkVksa esa lapkyu ds vk/kkj ij i;kZIr ek=k esavfrfjDr fQYVj nsuk izLrko esa lfEefyr gksuk pkfg,A

9.3 ;fn vko;d gqvk rks ok;q ncko jsxqysVj dh O;oLFkk fufonkdkj }kjk dh tk,xhA

9.4 ok;qnkch U;wesfVd fu;a=.k midj.k izfrf"Br esd ds gksus pkfg,A esd ds uke dks lwfpr fd;k tkukpkfg,A


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10. nzopfyr iz.kkyh tgk ykxw gks

10.1 nzopfyr lfdZV fuEufyf[kr lqj{kk rFkk fujh{k.k midj.ksa ls ;qDr gksuk pkfg,%&

d ,sls lHkh LFkyksa ij ncko ekid tgk ncko LFkkfir ;k fujhf{kr djuk gSA

[k fjyhQ okYo ds fuf"; gksus dh fLFkfr esa nzopkfyr lfdZV ds fy, lqj{kk okYo

x lfdZV esa vFkok iEi esa tgk vko;d gks rkieku dh tkp ds fy, midj.k

?k ,slh O;oLFkk tks ;g ladsr ns fd fQYVj ftlesa iEi lsV ds fQYVj Hkh lfEefyr gS tke gS vkSj lQkbZdh vko;drk gSA fQYVj iqu% iz;ksx fd, tk ldus okyk nskh fQYVj gks rFkk lgt miyC/k gksA ;fniqu% iz;ksx fd, tk ldus okys fdLe ds fQYVj dk izLrko u fd;k tk lds rks fQYVj dkVZfjt Hkkjr esa

rS;kj :i esa lqyHk gksuk pkfg,A lIykbZ ds L=ksr dks nkkZ;k tkuk pkfg,A nks o"kZ dh vof/k ds fy, nksfkVksa esa lapkyu ds vk/kkj ij i;kZIr ek=k esa vfrfjDr fQYVj nsuk izLrko esa lfEefyr gksuk pkfg,A

M- rsy Lrj ds de gksus ij vykeZ dh O;oLFkk gksuh pkfg,A

10.2 lEi iz.kkyh esa fuEufyf[kr izko/kku gksus pkfg,%&

d lEi esa U;wure rFkk vf/kdre rsy Lrj iznfkZr djus ds fy, rsy&Lrj nk xst ;k vU; midj.k dhO;oLFkkA

[k VSad ds rsy Hkkx esa fudklh&Iyx dh O;oLFkkA

x fdlh Hkh ikbi vFkok fQfVax dks vyx fd, fcuk gh VSad ls rsy fudkyuk laHko gksuk pkfg,A

10.3 fdlh Hkh fLFkfr esa nzopkfyr lfdZV esa rsy dk rkieku 60 lsaVhxzsM ls vf/kd ugha gksuk pkfg,A LFkkuh;ekSle ifjfLFkfr;ksa esa ekhu ds fujUrj lkekU; lapkyu ds nkSjku rsy&"ek lhek ls vf/kd u gks] ;g

lqfufpr djus ds fy, mi;qDr izcU/k dk izko/kku gksuk pkfg,A

10.4 ,;j ykWd dh voLFkk esa,;j CyhfMax dh lqfo/kk,a iznku dh tkuh pkfg,A

10.5 nzopkfyr gkSt] iEi rFkk layXu midj.k dh ekhu ls mfpr nwjh ij vyx O;oLFkk gks ftlls fd "ekds cM+s L=ksrksa dks gVk;k tk ldsA

10.6 e'khu esa iz;qDr nzopkfyr rsy Hkkjr esa miyC/k gksuk pkfg,A lQy fufonkdkjksa dks fofHkUu Hkkjrh; rsydEifu;ksa }kjk mRikfnr ,oa Lohfr izkIr rsy dk czkaM uke lwfpr djuk gksxkA

10.7 e'khu esa iz;qDr nzopkfyr rsy dk izFke rsy&Hkjko ekhu ds lkFk gh fn, tkus dk izko/kku gksA

10.8 nzopkfyr iz.kkyh ds iqtsZ eSllZ jsDljkWFk] fodlZ&LiSjh] ;wdsu] ,y0 ,.M Vh0 vkfn tSlh izfrf"Br dEifu;ksads Lrj ds gksus pkfg,A fHkUu iqtksaZ dk esd Li"V :i ls iznfkZr gksuk pkfg,A


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SCHEDULE-III

GENERAL CHARACTERISTICS

1. RIGIDITY AND STABILITY

1.1 The machine shall be robust, rigid and of sturdy construction. It shall be designed to meetheavy duty demands of various operations on the machine under normal Workshopenvironment for such machines. It shall be free for vibrations even when working at fullcapacity.

1.2 All machine castings shall be made of close grained high grade cast iron like Meehanite orequivalent materials meeting IS-210 Standards to ensure durability and rigidity. The castingshall be thermal stress relieved to ensure stabili ty and continued accuracy.

1.3 All machine fabrications of critical load bearing assemblies like beds, columns etc. shall beadequately strengthened and stress relieved.

1.4 Change in ambient temperature shall not affect the performance of the machine.

1.5 There shall be no change in the performance of the machine either on switching on themachine or after continuous running.

1.6 There shall be no resonant vibrations throughout the working range of the machine at all loadlevels.

2. SAFETY CONTROLS2.1 The machine shall incorporate safety devices to provide protection to the operator and

machine against all possible operational and machinery failures.

2.2 Suitable interlock shall abe provided to prevent machine operations in the event of:

2.2.1 Faulty sequence of operation.2.2.2 Fluctuation in supply voltage.2.2.3 Resumption of power supply after power failure.2.2.4 Non-positioning of safety guards.2.2.5 Failure of hydraulic system (where applicable)

2.2.6 Failure of lubricating system (In case of automatic including drop in pressure lubrication)

2.3 A fault or damage in the control circuit or interruption re-establishment after an interruption offluctuation in whatever manner in the power supply to the machinery must not lead to

dangerous situations in particular.2.3.1 The machinery must not start unexpectedly.

2.3.2 The machinery must not be prevented from stopping if command has already been given.

2.3.3 No moving part of the machinery or piece held by the machinery shall fall or be ejected.

2.3.4 The protection devices must remain effective.

2.4 The machine shall be fitted with an emergency stop device to enable actual or impendingdanger to be averted. This device must be:-

2.4.1 Conveniently located.

2.4.2 Clearly identifiable.

2.4.3 Stop the machine as quickly as possible without causing additional hazards.

The emergency stop must remain engaged. It should be possible to disengage it only byapapropriate operation. Disengaging the control must not restart the machinery but onlypermit restarting.

2.5 Safety features shall also include.

2.5.1 Safety device against overload for all machanical and electric items to the extent possible.

2.5.2 Safety stops against over-running of slides.

2.6 Guard and protection devices shall protect exposed persons against risks related to movingtransmission parts (such as pulleys, belts, gears, rack and pinion, shafts etc.) and movingparts directly involved in the process to the extent possible. This shall meet the followingrequirements:-


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2.6.1 Be of robust construction

2.6.2 Not give rise to any additional risk

2.6.3 Not be easy to by pass or render non-operational

2.6.4 Be located at an adequate distance from danger zone

2.6.5 Cause minimum obstruction to the view of the production process.

2.6.6 Rigidly connected and not prone to rattling

2.6.7 Enable essential work to be carried out without the guard or protection devicehaving to bedismantled

2.7 A load meter shall be provided to indicate the load on the machine. The meter shall have asuitable mark to indicate the maximum load the machine can take. Full details of the aboveand other safety features indicating howeach one functions must be explained in the offer.

3. OPERATIONAL CONTROLS

3.1 The operation of the machine shall be by push buttons or levers. The basic rules for thedirection of operation of controls and the corresponding direction of movements of themachine tools shall be as per IS:2987-1985.

3.2 The control devices shall be

3.2.1 Clearly visible and identifiable.

3.2.2 Ergonomically positioned for safe operation without hesitating or loss of time, and withoutambiguity.

3.3 CNC Controls (where applicable) - The general requirements of CNC controls are given atSchedule-IV.

4. LIGHTING

4.1 Integral lighting suitable for the operations concerned where its lack is liekly to cause a riskdespite ambient lighting of normal intensity shall be provided.

4.2 The manufacturer must ensure that there is no area of shadow likely to cause nuisance, thatthere is no irritating dazzle and that there are no dangerous stroboscopic effects due tolighting provided by the manufacturer.

4.3 Integral parts requiring frequent inspection and adjustment and maintenance areas must beprovided with appropriate lighting.

4.4 The machine lighting should be of low voltage so as to prevent any hazard to the operator.

5. MACHINE MAINTAINABILITY

5.1 The machine shall be so designed as to require minimum possible maintenance and to givetrouble free service.

5.2 All assemblies/parts of the machine shall be easily accessible for maintenance.5.3 The machine shall not require major dis-assembly for checking and replacement of a

particular part, especially for parts requiring periodical check up and replacement.5.4 The manufacturer must provide means of access e.g stairs, ladders, cat walks etc. to allow

access safety to all areas used for production, adjustments and maintenance operations.

6. WEAR COMPENSATION ADJUSTMENT

6.1 The original built in accuracy of the machine shall be capable of being maintained

conveniently and economically by suitable adjustments for taking up wear on slides, bearingsand load screws.

The system of adjustments incorporated shall be explained in the offer.

7. COOLANT SYSTEM (WHERE APPLICABLE)

7.1 Suitable coolant system with pump, motor, tank, filter etc. shall be provided. The coolantpump shall be as per IS:2161-1962. The filter shall be of reuseable type and indigenouslyavailable. If reuseable filter cannot be offered the filter cartridge shall be readily available inIndia. Source of supply shall be indicated. Adequate no.of filters for 2 years working ondouble shift basis shall be offered as spare. Details of the coolant system shall be indicatedin the offer.


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7.2 The supply of coolant shall be in ample volume. Provision to re-circulate the coolant shall beavailable. A chip and coolant tray shall be provided. The volume of coolant flow shall beindicated. It shall be adjustable.

7.3 An enclosure shall be provided to prevent the coolant from splashing outside the machiningzone. Details of enclosure shall be provided. Specific requirements of coolant system forgrinding machines etc. shall be clearly indicated.

8. LUBRICATION SYSTEM (WHERE APPALICABLE)

8.1 The machine shall be provided with an automatic lubricating system for ensuring delivery ofadequate quantity of lubricant to areas requiring continuous lubrication. Suitablearangements must be provided for indication of failure of the lubricating system.

8.2 The system shall be provided with interlock to prevent machine operating/starting in theevent of the failure lubrication system.

8.3 Reusable filters capable of filtering chips, dust particles etc. shall be provided. Indicators forshowing clogged condition of filters shall be available. The filters shall be indigenouslyavailable. If reuseable filter cannot be offered the filter cartridge shall be readily available inIndia. Source of supply shall be indicated. Adequate no.of filters for 2 years working ondouble shift basis shall be offered as spare.

8.4 Lubrication and filter cleaning chart shall be displayed on a metal plate at a conspicuouslocation on the machine indicating :-

(a) Specific location of points on the machine to be oiled lubricated/greased.(b) Periodicity of lubrication of these points.

(c) Filter to be cleaned.

(d) Periodicity of cleaning filters.

(e) Periodicity of replenishing lubricating oil for the centralised system.

(f) Any other similar relevant information.

8.5 Points where manual lubrication is needed shall be separately indicated. Frequency oflubrication shall be also clearly mentioned.

8.6 Lubricating oils used in the machine shall be available in India. Successful tenderer will berequired to indicate brand names of approved oils manufactured by various Indian OilCompanies.

8.7 First fill of lubricating oils used in the machine shall be provided with the machine.Details of lubricating system provided shall be indicated.

9. PNEUMATIC SYSTEM (WHERE APPLICABLE)

9.1 The compressed air supply will be provided by the customer at the machine within pressurerange of 4.5-7.5 kg.cm2 and a moisture content or 1000 ppm. The pneumatic system of themachine should be designed accordingly. An alarm shall be provided for low air pressure.

9.2 Suitable filter/moisture trap shal be provided by the contractor in the system of pneumatic airintake. The filter shall be reuseable type and indigenously available. If reuseable filter cannotbe offered, the filter cartridge shall be easily available in India. Source of supply shall beindicated. Adequate no.of filters for 2 years working on double shift basis shall be offered asspare.

9.3 Air pressure regulator, if necessary, shall be provided by the tenderer.

9.4 The make of pneumatic control equipment shall be of reputed make. The makes shall beindicated.

10. HYDRAULIC SYSTEM (WHERE APPLICABLE)

10.1 Hydraulic circuit must be equipped with the following safety and inspection equipments:

(a) Pressure gauges at all places, where pressure has to be set up or inspected.

(b) Safety valves for hydraulic circuit if relief valve does not fulfill this function.

(c) Equipment for checking of temperature in the circuit or in the pump wherever necessary.


32/33


(d) Arrangement to show if the filters (including those in the pump set) are choked and needcleaning. The filters shall be of reusable type and indigenously available. If reusable filtercannot be offered, the filter cartridge shall be readily available in India. Source of supply shallbe indicated. Adequate no. of filters for 2 years working on double shift basis shall beoffered as spare.

(e) Alarm for low oil level.

10.2 The sump aggregate shall have the following:

(a) Oil level sight gauges or any other equipment showing the minimum and maximum oil levelsin sump.

(b) A drain plug at the lowest portion of the tank.

(c) It shall be possible to drain the oil from the tank without disconnecting any pipes or otherfittings.

10.3 The temperature of oil in hydraulic circuits shall not exceed 60 degrees C in any case.Suitable arrangement shall be incorporated to ensure that the oil is not overheated underlocal weather conditions at continuous normal working of the machine.

10.4 Facilities for bleeding of air in case of air lock shall be provided.

10.5 The hydraulic reservoir, pump and allied equipment shall be suitably segregated from themachine in order to remove major source of heat.

10.6 Hydraulic oils used on the machine shall be available in India. Successful tenderer will berequired to indicate brand names of approved oils supplied by various Indian Oil Companies.

10.7 First fill of hydraulic oils used on the machine shall be provided with the machine.

10.8 The hydraulic system elements shall be from reputed Indian manufacturers like M/s.REXROTH, Vickers-Sperry, Yuken, L&T etc. The make of different elements shall be clearlyindicated. Details of Hydraulic system shall be indicated.


33/33

SCHEDULE-VI

Horizontal High Speed Heavy Duty Metal Cutting Band Saw

Specification No. COFMOW/HHDMCBS/340 x340 mm/2010 Rev-II

Format for Time Schedule Chart

S.No Activity Activity

Code

Time Schedule

expected byCOFMOW

Time

ScheduleOffered bybidder

Remarks, if any

1 Issue of LOA D1 D D

2 Submission of PBGBy Successful Bidder(Cl.0701 Sec-II of Bid.Doc. Pt I)

D2 D1+30 D1+30

3 Issue of ATBy COFMOW afterverification of PBG

D3 D2+30 D2+30

4 Opening of LC D4 D3+30 --- If applicable

5 Submission of GAdrawings to consignee bySuccessfulBidder/Supplier

D5 D3 + 30 D3 + ___

6 Approval of GA drawingsby consignee

D6 D5 + 30 ---

7 Handing over of clear siteby consignee

D7 D9-90 ---

8 Completion of foundationand signing of Joint Noteconfirming readiness ofsite

D8 D7+90 D7+___

9 Delivery of machine atsite

D9 D4+ 180 for foreignsuppliers,

D3+ 210 days forindigenoussuppliers

D4 + ___ orD3+___ (asthe case maybe)

10 Installation of machine D10 D9+ 30 D9 + ___

11 Prove Out andcommissioning ofmachine

D11 D10 + 60 D10 + ___

12 Issue of PTC D12 D11 + 30 D11 + ___

13 Warranty D13 D11+ 2 years D11+ ____

14. AMC D 14 D13+ 3 years D13+____ If applicable

Note:Not withstanding the delivery period indicated elsewhere in the tender document, the deliveryindicated in this Schedule shall be taken as over riding and final.

Signature of the Bidder

Documents

g694 Specs 209288 Rcf Bandsaw Spec