Golu New Pro

7/30/2019 Golu New Pro

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ACKNOWLEDGEMENT

Before we get into detail of the report, I feel the heartfelt responsibility to my

acknowledgement to several people to whom I own the success of my venture of training and

writing this report.

I am grateful to Mr. ALOK SHUKLA Sr.MANAGER (TURBINE GOVERNING SECTION)

who allowed me to undergo vocational summer training and guided me during training period

at BHARAT HEAVYELECTRICAL LIMITED,HARIDWAR which holds the rank

amongst the top Public Sectors in India , exhibiting excellent performance with safest and

most friendly environment, fulfilling all kinds of standards respective to its name, reputation

and fame.

I would like to give special thank to all the staff of BHEL TURBINE SECTION for their

great and remarkable contribution, support and guidance during training period. Their

constant effort made this training really a learning experience. The well planned schedule and

structure helped me in understanding the systems and equipments easily and effectively.

PRACHETASH SRIVASTAVA

Mechanical Engineering


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TABLE OF CONTENT

1. BHEL

AN OVERVIEW.5

2. HEEPAN OVERVIEW..6

3. TURBINES & AUXILLIARY BLOCK.7

4. HYDRO TURBINE....8

5. STEAM TURBINE9-10

6. GAS TURBINE11-14

7. MANUFACTURING PROCESS15-17

8. BLADE SHOP.18-21

9.BROAD SPECIFICATION OF MAJOR MACHINES TOOLS

& MACHINES - CNC MACHINE TOOLS..22-25

10. NON CNC MACHINE TOOLS.26-27


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1.BHELAN OVERVIEW

BHEL is the largest engineering and manufacturing enterprise in Indiain the energy related

infrastructure sector today. BHEL was established more than 40 years ago when its first plant

was setup in Bhopal ushering in the indigenous Heavy Electrical Equipment Industry in Indiaa dream which has been more than realized with a well recognized track record of

performance it has been earning profits continuously since 1971-72 and achieved a sales

turnover of Rs. 6347 crore with a pre-tax profit of Rs. 294 crore in 2000-01.

BHEL caters to core sectors of the Indian Economy viz., PowerGeneration's & Transmission,

Industry, Transportation, Telecommunication, Renewable Energy, Defense, etc. The wide

network of BHEL's 14 manufacturing division, four power Sector regional centres, over 150

project sites, eight service centres and 18 regional offices, enables the Company to promptly

serve its customers and provide them with suitable products, systems and services

efficiently and at competitive prices. BHEL has already attained ISO 9000 certification for

quality management, and ISO 14001 certification for environment management.

POWER GENERATION

Power generation sector comprises thermal, gas, hydro and nuclearpower plant business as of

31.03.2001, BHEL supplied sets account fornearly 64737 MW or 65% of the total installed

capacity of 99,146 MW inthe country, as against nil till 1969-70.

BHEL has proven turnkey capabilities for executing power projectsfrom concept to

commissioning, it possesses the technology and capability to produce thermal sets with super

critical parameters up to 1000 MW unit rating and gas turbine generator sets of up to 240

MW unit rating. Cogeneration and combined-cycle plants have been introduced to achieve

higher plant efficiencies. to make efficient use of the high-ash-content coal available in India,

BHEL supplies circulating fluidized bed combustion boilers to both thermal and combined

cycle power plants.The company manufactures 235 MW nuclear turbine generator sets

and has commenced production of 500 MW nuclear turbine generator sets.


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2.HEEP: AN OVERVIEW

Over the years, Bharat Heavy Electricals Limited has emerged as world class Engineering

and Industrial giant, the best of its kind in entire South East Asia. Its business profile cutsacross various sectors of Engineering/Power utilities and Industry. The Company today

enjoys national and international presence featuring in the "Fortune International- 500" and is

ranked among the top 12 companies in the world, manufacturing power generation

equipment. BHEL has now 14 Manufacturing Divisions, 8 Service Centres and 4 Power

Sectors Regional Centres besides a large number of project sites spread over India and

abroad.

HEEP: FACILITIES AND INFRASTRUCTURE

Modernization and regular up gradation / up gradation of facilities andcother infrastructure is

a continuous endeavor at HEEP, BHEL. After initial setting up of the plant during the year

1964-72, in collaboration with the Soviet Union, the plant facilities and infrastructures have

since been continuously upgraded under various investment projects viz, Stamping Unit

Project, LSTG Project, Motor Project, Governing Components Project, TG Facilities

Modernization, TG Facilities Augmentation, Quality Facilities Augmentation, EDP projects,

Gas Turbine Project, Facilities have also been added and establishments have been created

for new projects in Defense and Aviation Project. Additionally, R &D facilities have also

been created under Generators Research Institute, Pollution Control Research Institute, HTL

modernization and other such scheme.

Today the Plant has unique manufacturing and testing facilities,computerized numerically

controlled machine-tools, Blade shop, heavy duty lathes, milling machines, boring machines,

machining centers and many more. The Over Speed Vacuum Balancing Tunnel created for

rotors up to 1300 MW (32T, 6.9 M dia bladed rotor, 6 rpm up to 4500 rpm) is one of the 8

of its kind in the entire world.

The total spectrum of sophisticated, unique and other facilities at HEEP,Hardwar are the

state-of-the-art in manufacturing processes and can beutilized for a variety of products'manufacture.


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3.TURBINE AND AUXILIARY BLOCK-III

GENERAL

Block-III manufactures Steam Turbines, Hydro Turbines, Gas Turbines and Turbines Blades.

Special Toolings for all products are also manufactured in the Tool Room located in the same

block. Equipment layout plan is as per Drawing appended in Section III. Details of facilities

are given in Section II.

The Block consists of four Bays, namely, Bay-I and II of size 36x378 metres and 36x400

metres respectively and Bay-III and IV of size 24x402 metres and 24x381 metres

respectively. The Block is equipped with the facilities of EOT Cranes, compressed air,

Steam, Overspeed Balancing Tunnel, indicating stands for steam turbine, rotors, one Test

stand for testing 210 MW steam turbines Russian Design, one Test Stand for Hydro Turbine

Guide Apparatus and two separate Test Stands for the testing of Governing Assemblies of

Steam and Hydro Turbines.


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4.HYDRO TURBINES

For manufacturing of Hydro Turbines, Bay-I has the following sections:

Circular Components Machining SectionThis section is equipped with a

number of large/ heavy size Horizontal and Vertical Boring Machines, Drilling

Machines, Centre Lathes, Marking Table and Assembly Bed. The major components

machined in this section are Spiral Casing with Stay Ring, Spherical and Disc Valve

bodies and Rotors.

Runner and Servo Motor Housing Machining SectionThis section is

equipped with NC/CNC and conventional machines comprising Heavy and Medium

size vertical and Horizontal Boring Machines, Centre Lathes, Grinding machines andDrilling Machines, Marking Table, Assembly Bed, Assembly Stands for Steam

Turbine and Gas Turbine assemblies and Wooden Platform for overturning heavy

components. Hydro Turbine Runners, Servomotors, cylinders, Labyrinth Ring,

Regulating Ring, Stay Ring, Turbine Cover, Lower Ring, Kaplan Turbine Runner

Body and Blades are machined here.

Guide Vanes and Shaft Machining SectionThis section is equipped with

Heavy duty Lathe machines up to 16 metres bed, CNC turning machines, Horizontal

Boring Machine, Heavy planer, Deep Drilling Machine, Boring Machines, markingTable, Marking Machines and Assembly Beds. Turbine shafts, Guide Vanes, Journals

and Rotors of Spherical and Disc Valves are machined here. Rotors of Steam

Turbines are also machined in this section.

Assembly SectionIn this section, assembly and testing of GuideApparatus, Disc Valve, Spherical Valves, Servo motor shaft and combined Boring of

coupling holes are done.

Preservation and Packing SectionFinal preservation and packing of all the

Hydro Turbine components / assemblies is done here.

Small components Machining Section This is equipped with PlanetaryGrinding Machine, Cylindrical Grinding Machines, small size Lathes, Planers,

Vertical and Horizontal Boring Machines. Small components like Bushes, Levers,

Flanges etc. and governing assemblies and machines here.

Governing Elements Assembly and Test Stand SectionThis section

equipped with facilities like oil Pumping Unit, Pressure Receiver.


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5.STEAM TURBINES

The facilities and parts manufactured in the various sections of Steam

Turbine manufacture are as follows:

Turbine casing Machining SectionIt is equipped with large size Planer,

Drilling, Horizontal Boring, Vertical Boring, CNC Horizontal and Vertical Boring

machines etc. Fabrication works like casings, Pedestals etc. are received from

Fabrication Block-II.

Rotor Machining Section

It is equipped with large size machining tools likeTurning Lathe, CNC Lathes, Horizontal Boring Machines, special purpose Fir tree

Groove Milling Machine etc. Some rotor forgings are imported from Russia and

Germany and some are indigenouslymanufactured at CFFP, BHEL, Hardwar.

Rotor Assembly SectionThis is equipped with Indicating Stand, Small size

Grinding, Milling, Drilling, machines, Press and other devices for fitting Rotors and

Discs. Machined Rotor, Discs and Blades are assembled here. Balancing and over

speeding of Rotor is done on the dynamic balancing machine.

Turbine casing Assembly SectionMachined casings are assembled and

hydraulically tested by Reciprocating Pumps at two times the operating pressure.

Test Station - Test station for testing of 210 MW USSR Steam Turbine at no load

is equipped with condensers, Ejector, Oil Pumps, Oil containers Steam Connections

etc, required for testing. Overspeed testing is done for emergency Governor.

Assembly Test Stands for different modules of Siemens design are equipped with

accessory devices.

Painting Preservation and Packing Section All the parts are painted,

preserved and packed here for final dispatch.

Bearings and Miscellaneous Parts Machining Section This section isequipped with small and medium size basic machine tools, e.g., lathes, Milling M/c,

Horizontal Borer, Vertical Borer, drilling M/c etc. formanufacture of bearings and

other miscellaneous parts of turbine.


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ROTOR ASSEMBLY OF V94.3A STEAM TURBINE

Sealing and Diaphragm Machining SectionIt is equipped with medium

size Vertical Boring, Horizontal Boring, Planning, Drilling Machines etc. where in

castings of sealing Housings, Liner housings, Forgings of Rotor Discs, castings and

fabricated Diaphragms and components are machined. It is also equipped with CNC

machining center. Precision Horizontal Boring, Plano-Milling machines etc, are for

manufacture of Governing Casting, Servo Casings and other medium parts of

governing and Main Turbine assemblies.

Governing Machining SectionThis section is equipped with medium size and

small size lathes, medium CNC lathe, Milling, Grinding, Drilling,Slotting and Honing

Machines. Governing assembly parts are machinedhere.

Diaphragm and Governing Assembly SectionIt is equipped with

deflection testing equipment for Diaphragms, Dynamic Balancing Machine for

balancing Impeller of Centrifugal Oil Pumps and small fittings and assembly

equipment. Governing test stand is equipped with the facilities like Oil Pumping Unit,

Pressure Receiver, Servomotor, over speed testing of Emergency Governor etc.

Light machine shopIn addition to normal conventional machine tools it is

equipped with CNC Lathes, CNC Milling, CNC Vertical Boring,


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Precision Milling, planetary grinding machines etc. for manufacture of small and

medium precision components of governing and other turbine parts.

6.GAS TURBINE

All the components of Gas Turbine are machined and assembled using the

facilities available for manufacturing of steam and hydro turbines except the

following facilities which are procured exclusively for the manufacturing of Gas

Turbine and are installed in the areas specified for gas turbine manufacturing.

Hydraulic Lifting PlatformThis facility is used for assembly and disassembly of G.T. Rotor. This is

ahydraulically operated platform which travels upto 10 M height to facilitateaccess to

different stages of Rotor. This is installed in Bay-I assembly area.

CNC Creep Feed Grinding M/c.This is installed in Gas Turbine machining area Bay-II Extn. This M/cgrinds the

hearth serration on rotor disc faces. Hirth serrations are radialgrooves teeth on both

the faces of rotor discs. Torque is transmitted troughthese serrations, which are very

accurately ground.

External Broaching MachineThis machine is installed in GT machining area and is used to make grooveon the

outer dia of rotor discs for the fitting of moving blades on the discs.

CNC Facing LatheThis machine is installed in GT machining area and is used basically forfacing rotor

disc but can turn other components also.

CNC Turning LatheThis machine is installed in Bay-I Heavy Machine Shop and is used to turnTie Rods

of Gas Turbine, which have very high length / diameter ratio. Tie-Rod is a very long

bolt (length approx. 10 meter & dia 350-mm) which isused to assembly and holds the

gas turbine rotor discs to form a compositeturbine rotor.


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GAS TURBINE

Wax Melting EquipmentThis is low temp. electric furnace installed in Gas Turbine blading area inBay-II. It is

used to mix and melt Wax and Colaphonium, which is required to arrest the blade

movement during the blade tip machining of stator blade rings.

Gas Turbine Test Bed

This test bed is installed near the Gas Turbine Machining area in Bay-II.This facility

is used to finally assemble the gas turbine. Combustionchambers are not assembled

here, which are assembled with main assembly at the site.

Combustion Chamber Assembly PlatformThis facility is a 3 Tier Platform installed in Bay-I assembly area and is used for

assembly of Combustion Chambers of Gas Turbine.


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7.MANUFACTURING PROCESS

HYDRO TURBINES

The major processes involved in various Hydro Turbine Sections are asfollows: Marking and checking of blanks manual as well as with special marking M/c.

Machining on Horizontal Boring, Vertical Boring, Lathes etc. as the case may be on CNC

/Conventional Machines. Intermediate assembly operation is carried out on the respective

assembly beds provided.

The sub-assemblies are further assembled for hydraulic/functional testing. Hydraulic testing

is done using a power driven triple piston horizontal hydraulic pump, which can generate a

pressure of 200 Kg/Cm2. It can also be carried out using a power pack.

On Governing elements / assembly and test stand, the components / subassemblies/

assemblies are tested up to a hydraulic pressure of 200 Kg / cm2 using the piston pump. Oil

testing upto 40 Kg / c m2 is carried out withoil pumping unit, which is permanently installed

on this bed.

STEAM TURBINEProcesses carried out in various sections of steam turbine manufacture arebased

on the following main phases.

Machine sectionCastings, Forgings, welded structures and other blanksare delivered to

this section. The manufacturing process is based on the useof high efficiency carbide tipped

tools, high speed and high feed machiningtechniques with maximum utilization of machine

tool capacity and quickacting jigs and fixtures.

Assembly Section Casings and governing assemblies are hydraulicallytested for leakage

on special test Bed. Assembled unit of governing andsteam distribution systems is tested on

Governing Test Bed. GeneralAssembly and testing of Steam Turbine is carried out on the

main Test Bedin Bay-II.


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OVERSPEED & BALANCING TUNNEL

Painting, Preservation and PackingAfter testing the turbine, it isdisassembled and

inspected. Then the parts are painted, conserved andpacked for final dispatch.

GAS TURBINEThe major processes involved in manufacturing Gas Turbine in various

sections of Block-III are as:-

MachiningCastings, Forgings, welded structures and other blanks are received from concerned agencies

in the respective sections. These are machined keeping in view optimum utilization of

machine tools and tooling. Special jigs and fixtures are made available to facilitate accurate

and faster machining. Proper regime and tool grades have been established to machine the

materials like inconel, which have poor machinablity.

Main AssemblyFinal assembly is done on test bed. Parts are assembled to make subassemblies. These sub-

assemblies are again machined as per technological and design requirements and are made

ready for final assembly. After assembly and insulation assembled Gas Turbine is sent to site.


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Rotor Assembly

The rotor is assembled on Hydraulic Lifting Platform and sent to mainassembly, where after

checking clearances, it is sent for machining. After balancing, turbine side of rotor is

disassembled, inner casing is fitted and rotor reassembled. This work is also carried out on

Hydraulic Lifting Platform. Finally rotor is sent for assembly on test bed.

Combustion Chamber Assembly

This assembly is carried out on 3 tier platform installed for this purpose in Bay-I assembly.

After machining of all components, ceramic tiles are fitted in flame tube. Burner and piping

etc. is fitted in dome and combustion chamber is finally assembled. It is directly sent to site

after insulation.


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8.BLADE SHOP

Introduction:Major part of Turbine Blade Machining Shop is located in Bay-IV of Block- III. In this shop

various types of Steam Turbine and Gas TurbineCompressor blades are machined from barstock, drawn profile, precision and envelope forgings. It is a batch production shop

comprising of various kinds of CNC Machines and Machining Centers, besides various

special purpose and general purpose machines. The layout of equipments is as per

technological sequence of the manufacturing process. Blade shop implements various On

Line Quality Control Techniques through Run Charts and Control charts. This shop is divided

into four distinct areas. Details of facilities are given in various schedules of Section-II.

Manufacturing Facilities:

Plain Milling SectionIt prepares accurate reference surfaces on the blade blanks by milling and grinding operation.

It also manufactures the brazed type blades by induction brazing of drawn profile and

suitably machined spacers. This section carries out banking by Band Saws, rhomboid

grinding on Duplex grinding machines and thickness grinding on Surface grinders.

Copy Milling SectionThe Semi blanks prepared from plain milling section are further machined by copy Milling

Machines / CNC machines (CNC Heller and BSKBed type Klopp, BFH / BEK Knee type

Machines) for concave and convex aerodynamic profile forms, (HTC-600, BFK Machines)

for expansion angles, Compound taper grinding of radial plane is carried out by Surface

grinders. It comprises of T-root machining centers for machining of T-root.

LP SectionThis area deals with all types of free standing and forged blades for steam Turbine

Compressor. The freestanding blades are cerro bend casted in boxes to hold the blade with

respect to the profile. These blades roots are subsequently machined on NTH, MPA-80A and

T30 Machining Centers.

There is a five station 360o circular copy milling machine for machining theprofile of

envelope forged blades / stocks for Steam Turbine and GasTurbine Blades. It also has 3D

copy Milling and CNC Machines withdigitizing features for Tip-thinning, Fitted milling. The

inlet edge of the laststage of Low pressure Turbine Moving blades are hardened on a

SpecialPurpose Flame Hardening equipment.

Polishing SectionBlade Contours are ground and polished to achieve the desired surface finishand other

aerofoil requirements.There are also other small sections e.g. Fitting Section, Tool and CutterGrinding, Toolings Repair Section in Blade Shop.


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Inspection Device

3 D Coordinate Measuring Machines for taper and rhomboid checking.

Moment weighing Equipment.

Real time Frequency analyzer for checking frequency of free standingblades.

Contour plotter for plotting of blade profile with various magnifications.

Fir- tree root inspection device.

Magna spray crack detection equipment.

MANUFACTURING PROCESS

The manufacturing process of turbine blades primarily depends on the typeof blade e.g. Bar

type, Brazed type, Free standing (Forged type), GasTurbine Compressor blades. The bar type

and brazed type blades are alsoknown as drum stage glades. The manufacturing technology

of each of theseblades along with recommended machine tools / equipment is

furnishedbelow.


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9. BROAD SPECIFICATION OF

MAJOR/IMPORTANT MACHINE TOOLS &

MACHINES

A : CNC MACHINE TOOLS

CNC HORIZONTAL BORERS:

1. Item Description :CNC Horz. Borer

Model : RAPID 6C

Supplier : WOTN, GERMANY

CNC Control System : FANUC 12M

Spindle Dia. : 200mm

Table : 4000 x 4000 mm

Max. Load on Table : 100 T

Travers : X=20000, Y=5000, X=1400mm

Ram traverse : W = 1000 mm

Ram size : 400 x 400 mm

Power Rating : 90 KW

Weight of the m/c : 111 T

ATC Capacity : 60 Nos.

Plan No. : 1-227 (Block-I)

2. Item Description : CNC Stub Borer

Model : DW 1800

Supplier : HEYLIGENSTAEDT, GERMANY


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CNC Control System : SINUMERIK7T

Boring Dia : 625 2500 mm

Table : 4000 x 4000 mm

Headstock Travel : 4000 mm

Spindle Speed : 0.5 90 RPM (in 4 Steps)


Max. Load Capacity: 100 T

Weight of the m/c : 72 T

Plan No. : 27-420 (Block-III)

CNC LATHE FOR ROTOR MACHINING

3. Item Description : CNC Horz. Borer (2 Nos.)


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Model : W200 HB NC

Supplier : SKODA, CZECH

CNC Control System : SINUMERIK 850 M

Spindle Dia. : 200 mm

Traverse : X=12500,

Y=5000,

Z=2000mm

CNC LATHES

4. Items Description : CNC Centre Lathe

Model : D-1800 NYF

Supplier : HOESCH MFD, GERMANY

CNC Control System : SINUMERIK 3T

Centre Distance : 8000 mm

Swing Over Carriage : 1800 mm

Swing Over Bed : 2400 mm

Spindle Speed : 0 125 RPM


Weight of the Job : 110 TON


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Weight of the m/c : 124 TON


5. Item Description : CNC Centre Lathe

Model : D-2300 NYFS-1

Supplier : HOESCH MFC, GERMANY

CNC Control System : SINUMERIK 7T




Spindle Speed : 5 125 RPM


Weight of the job : 320 TON

Weight of the m/c : 216 TON


6. Item Description : CNC Centre Lathe

Model : KV2-1100 CNC

Supplier : RANVENSBURG, GERMANY

CNC Control System : SINUMERIK 820 T


Centre Height : 900 mm




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Max. Turning Length : 12000 mm

Spindle Speed : 2-600 RPM

Longitudinal Cutting Feed (Z-Axis) : 1-5000 mm / min.

Transfer Cutting Feed (X-Axis) : 1-5000 mm/min.

Main Spindle Drive Motor : 95.5 KW DC

Max. Feed Force Z/X Axis : 45000 N

No. of Tool carriers : 3


CNC MILLING MACHINES

7. Item Description : CNC Horz. Milling M/c (6 Nos.)

Model : BFH-15

Supplier : BATLIBOI, INDIA


Table : 1500 x 400 mm

Traverse : X=1170 mm

Y=420 mm

Z=420 mm

Spindle Speed : 45 to 2000 RPM


Max. Load Capacity : 630 Kg

Weight of the m/c : 4200 Kg

Plan No.: 2-449, 2-453, 2-454, 2-459, 2-460 (Block-3)


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8. Item Description :Universal Milling M/cs (2Nos.)

Model : BFK-15

Supplier : BATLIBOI, INDIA


Table : 1500 x 400 mm

Traverse : X=1170 mm

Y=420 mm

Z=420 mm

Spindle Speed : 45-2000 RPM


Max. Load Capacity : 630 Kg

Weight of the m/c : 4200 Kg

Plan No. : 2-463, 2-466 (Block-III: TBM)

9. Item Description : CNC Bed Type Milling M/c

Model : FSQ 80 CNC

Supplier : TOSKURIM, CZECH


Table : 3000 x 800 mm

TEE SLOT : 28H7

Traverse : X= 3000 mm

Y= 870 mm

Z= 850 mm

Spindle Speed Range : H 2500 RPM

Spindle Drive Power : 18 KW continuous


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22 KW intermittent

Spindle Head Size : 620 x 500 incldg ram

543 x 420 encldg ram

ATC Capacity : 24 Nos.

Table Load : 2500 Kg


CNC MACHINING CENTRES

10. Item Description : SPL. Purpose 6 Station T-Root

Machining Centre (2nos.)

Supplier : MIH, JAPAN

CNC Control System : FANUC 7M

Indexing Table : 1900 mm dia

Indexing Position( 6 Nos.)

Plan No. : 2-356, 2-41 (Block-III: TBM)

11. Item Description : SPL Purpose FIR Tree Root M/cing

Centre

Model : NTH 200

Supplier : RIGID, SWITZERLAND

CNC Control System : SINUMERIK 7M

Table : 1400 x 1400 mm

Traverse : X= 1950 mm

Y= 900 mm

Z= 600 mm


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Spindle Speed : 30600 RPM

No of Spindle : 4


Plan No. : 2-354 (Block-III TBM)

CNC VERTICAL BORERS

12. Item Description : CNC Vertical Borer

Model : TMD 40 / 50

Supplier : OSAKA MACHINES, JAPAN

CNC Control System : FANUC 6TB, 3TC

Table dia : 4000 mm

Turning dia : 5000 mm

Turning Height : 4200 mm

Spindle Speed : 0.23-30 RPM

No. of Ram : 2

OTHER SPECIAL PURPOSE CNC MACHINES

13. CNC SURFACE BROACHING M/C

Make : Marbaix Lapointe, UK

Model : Champion 32 /10, 300

CNC System : SINUMERIC 850 M

Broaching capacity (pulling force) : 320 KN

Broaching slide stroke : 10.3 mm

Broaching slide width : 1500 mm


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Max tool length (continuous /row) : 9650 mm

Broaching Speed (cutting stroke) : 1-25 M/min

Broaching Speed (return stroke) : 60 M/min

Drive power rating : 135 KW

Broaching slide movement : Electro-mechanical

Maximum noise level :< 80 Dbs

Max. dia of the disc (mountable) : 2300 mm

Max. weight of the job : 3000 Kgs

Indexing & rotating tables f : 1500 mm, 1000 mm

Indexing accuracy : +/- 3 Arc sec.

Plan No. : 2-485

14. CREEP FEED GRINDING M/C

Make: ELB CHLIFE, GERMANY

Model : ELTAC SFR 200 CNC

CNC System : SINUMERIC 3 GG

Work-piece diameter : 200 2000 mm

CNC BROACHING MACHINE

Work height : 2400 mm

Rotary & indexing table dia. : 2050 mm

Indexing accuracy : +/- 1 ARC SEC

Max. load capacity : 20000 KG

Y-axis (grinding head movement)

Vert. Traverse : 750 mm


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Z- axis (grinding head support)

( Movement on cross rail)

Horizontal traverse : 2400 mm

Traverse feed rate : 02 1200 mm /min

Grinding head main support

Drive motor : 34 KW

Grinding wheel max. Dia. : 500 mm

Max. Width : 100 mm

Bore : 203.2 mm

Surface speed : 16-35 M/Sec.

Plan No. : 2-49


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10.NON-CNC MACHINE TOOLS

PRECISION HEAVY DUTY LATHE

Manufacturer: Karamatorsk Heavy Machine Tool Works (USSR); Model KS-1614:

Specifications

1. Maximum Swing - 2000mm

2. Maximum Diameter of work piece over the Saddle - 1500 mm

3. Maximum Distance between Centres - 8000mm

4. Diameter of Spindle bore - 80 mm

5. Maximum Taper when machining by the method of Combined Feeds 0.15 mm

6. Maximum Length between Centres when machining by the method of

Combined Freeds - 1200 mm

7. Maximum Weight of work piece - 20000 kg

8. Maximum Length of Machine over the Saddle -8000 kg

9. Maximum Summary Effort of Cutting - 10,000 kg

BALANCING MACHINE

Manufacturer: SCHENK (West Germany)

Model: Dj 90

Specifications

1. Weight of rotor - 10,000 to 80,000kg

2. Minimum weight without considerable loss of measuring sensitivity,

provided the berings can accommodate such small rotors- 5000 kg

3. Maximum weight for one bearing pedestal l- 45,000 kg

4. Height of rotor axis above machine bed - 1600 mm

5. Rotor diameter (free swing over machine bed) not considering the funnel- 4000 mm


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6. Diameter of journal Max - 540 mm

7. Diameter of journal, with special sleeve bearing cups made from high

grade material Max - 600 mm.

8. Minimum distance between bearings for less than 10 tons rotor - 1500 mm

9. Minimum distance between bearings for more than 10 tons rotor - 1900 mm

10. Maximum distance between coupling plague and center of the scond

bearing pedestals - 13500 mm

11. Rotational Speeds Min - 800 rpm

(a) For rotors from 5 to 10 tons Max- 4000 rpm

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Golu New Pro