Warehouse Mgt

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Warehouse Management

Text of Warehouse Mgt

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    Version 1

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    www.thaicostreduction.com

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    1. 3 1.1 (Warehouse and its contributions) 3 1.2 (Warehouse management) 4 1.3 6 1.4 8

    2. (Block, Racking) 9 3. SLP (Systematic Layout Planning) 17 4. 21 5. 24 6. 26 7. 31

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    1.

    1.1 (Warehouse and its contributions)

    2 (Private warehouse) (Public warehouse)

    1. 2. 3. 4. (Economies of scale) 5. 6.

    1.

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    2. 3.

    1. 2. 3. 4.

    1. 2. 3.

    - - (Production smoothing) - (Economies of scale) - (Supply

    uncertainty) - (Demand uncertainty) -

    1.2 (Warehouse management)

    (Tracking system) ()

    - - - -

    -

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    (Warehouse management)

    (Location selection) (Sizing) (Layout) (Warehouse management system) (Location control) (Delivery) (Record and data)

    product physical warehouse f

    communication

    tracking

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    )

    (Make to order) (Setup cost) (Make to stock) (Inventory carrying cost)

    )

    (Consolidate) (Consolidate point) (Transportation cost) Milk run

    )

    Quick response (Consumable product)

    1.3

    ) ()

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    (Tag)

    )

    6 )

    4 (Location address) ()

    (Location address)

    ) 4

    3

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    )

    )

    ) 6

    )

    1.4

    ) (Space utilization) ) () (Distance) ) ) (Picking time) ) (Picking error) )

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    2.

    (Location selection) (Layout)

    2.1

    (Warehousing Management) Edgar M. Hoover ( 2546) 3

    )

    (Mass Transportation)

    )

    () () ()

    )

    (Consolidate point)

    - (Centre of Gravity Model) (Gravity point) 2

    (Transportation demand) (Coordinate)

    i

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    di i (Transportation demand) xi i ( GPS UTM ) yi i (Xg,Yg)

    Xg = i

    ii xd /i

    id (1)

    Yg = i

    ii yd /i

    id (2)

    () N (X) E (Y) 1 1,306,014 17.41309 101.68712 2 661,107 17.16886 102.32376 3 4,288,614 17.41583 102.97412 4 620,209 18.03875 103.21835 5 922,453 17.46248 103.78090 6 423,788 17.46797 104.47516 7 953,584 16.57612 104.52182 8 488,935 15.97516 104.31052 9 411,084 15.82972 104.63432

    10 1,244,057 15.35224 104.98009 11 1,070,680 14.99824 104.36266 12 1,431,341 14.81713 103.66564 13 2,120,138 14.88848 103.02626 14 1,236,307 16.01906 103.13328 15 1,321,568 15.88734 103.76443 16 3,691,603 16.64747 103.60802 17 5,396,658 16.37306 102.60915 18 3,854,758 15.92302 101.95604 19 10,606,820 15.28912 102.32925 Gravity Point 16.06911 102.93042 - (The Weighted-Factor Rating Model) 1.

    2. 0 1

    1 3. (Candidate)

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    4. 0 100 5. 6.

    5 3 5 84 (74 ) (68 )

    0.20 100 40 90 0.15 100 60 80 0.25 80 80 60 0.30 70 90 60 0.10 80 100 50 84 74 68

    (Optimization) (Break even point analysis) (Analytical Hierarchy Process)

    2.2

    )

    (Capacity)

    )

    ) Cross docking

    )

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    2.3

    (Layout)

    () ) Block Stacking (Shelf or Rack) Block Stacking (Pallet) 2-3 Block Stack

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    Block Stacking

    ) Selective Pallet Racking Selective Pallet Racking Load Beam Selective (Palletized Goods) Block Stacking Selective Pallet Racking

    Selective Pallet Racking

    ) Drive in Racking Drive in Racking Pallet Rack Drive in Racking

    Selective Pallet Racking

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    ) Pallet flow rack Pallet flow rack Pallet

    Pallet flow rack ) Mobile pallet racking Mobile pallet racking

    Mobile pallet racking

    Standard shelving

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    Small part shelving

    Carton live shelving

    Long span shelving

    - - - - - -

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    -

    - -

    6

    - (Service level) (Picking time) (Space utilization) Cross docking

    -

    - ) (Material handling)

    SKU - Stock Keeping Unit (Package type) (Unit load pallet) x x

    ) 4

    ) (Forklift) (Fixed Storage) 20% (Random System)

    ) (Pallet and rack)

    -

    - -

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    3. SLP (Systematic Layout Planning)

    SLP (Systematic Layout Planning)

    3.1 SLP SLP (Trail and error) SLP

    ) SLP

    (Code)

    ) SLP

    Code

    1

    2

    3

    4

    5

    6

    Reason

    Type of customer

    Ease of supervision

    Common personnel

    Contact necessary

    Share same price

    Psychology

    Value

    A

    E

    I

    O

    U

    X

    Closeness Line code

    Numerical weights

    Absolutely necessary

    Especially important

    Important

    Ordinary closeness OK

    Unimportant

    Undesirable

    16

    8

    4

    2

    0

    80

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    ) SLP

    ) (Relationship diagram) SLP

    (Relationship diagram)

    ) SLP

    (Trail and error)

    1

    2

    4

    3

    5

    U U

    E

    A

    I

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    3.2 SLP

    10 SLP

    A E I O U X

    1. 2. 3. 4. 5. 6. 7. 8. 9.

    A 5 A-5

    A 5

    A 3

    I 3

    U U

    U U

    U O 4

    E 3

    O 4

    O 4

    O 4 O 4

    O 4

    U U

    U

    U U

    U U

    U U

    U O 4

    O 8

    E 3

    U U

    O 8

    X 9

    E 6 E 6 E 3

    I 1

    A 5

    X 9 X

    9 X 9

    O 8 O

    8 I 1

    I 3

    U

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    SLP (Relationship diagram)

    (Relationship diagram)

    4. 3

    4.1 ABC (ABC Analysis or Paretos Law)

    ABC (ABC Analysis) A SKU (Stock Keeping Unit) B C

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    ABC

    James Jerry (1998) The Warehouse Management Handbook; the second edition (Stock location assignment) ABC (Movement) 20% 80%

    ABC

    Classification Percent of SKUs Percent of Movement A 20% 80% B 25-30% 15% C 50-55% 5%

    A

    (Pick) B C ABC 3 A, B, C D A (Movement) 50% A B 30% C 12% D 8% 4.2 (Storage)

    James Jerry (1998) The Warehouse Management Handbook; the second edition (Stock location methodology) 6

    ) (Informal system)

    SKU (Location)

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    (Informal system)

    - -

    - - -

    ) (Fixed location system) SKU

    SKU (Location) (Low utilization)

    (Fixed location system)

    - -

    - - -

    ) (Part number system) (Part number system)

    (Fixed location system) (Part number system) A123 B123 (Part number) (Part number) SKU

    (Part number system)

    - - -

    - - - -

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    ) (Commodity system) (Product type)

    (Supermarket) (Location) (Combination system) (Space utilization) (Pick)

    (Commodity system)

    - - -

    - - - -

    ) (Random location system)

    (Update) (Space utilization)

    (Random location system)

    - - - -

    - -

    ) (Combination system)

    (Fix location) (Random)

    (Combination system)

    - - - -

    -

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    6

    - (Fastest turning closest to the door) - (Fast mover closest to the door) - (Small inventory closest to the door) - (High weight closest to the door)

    4.3 (Order picking)

    Halsey (2003) ( 2551) (Pick)

    )

    (Picking time) ) (Picking time) (Picking distance) (Picking error) Vaugan Petersen (1999) ( 2551) (Depot) (Picking assignment Picking list) (Depot)

    5.

    (Stock card) (Barcode) (RFID)

    )

    ( FIFO)

    ) (Stock card)

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    (Stock card) (Location)

    ) (Tag) TAG

    ) )

    (Stock card)

    (Human error)

    (2547) (2547) ( 2551) - 1

    ( ) ( )

    - 2 1

    -

    - Biometric - (Smart card) - RFID

    (Tag) www.autoidcenter.org members.surfbest.net

    3 ) (RFID Tag/Transponder) 2

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    2 Passive Active Read-only Read-write www.simat.co.th

    )

    2 (Handheld) (Fixed reader)

    )

    6.

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    (Automated Warehouse)

    (One Unit Load) (Truck)

    (One Unit Load)

    () ()

    - - - -

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    Handling Institute of

    America (MHIA)

    )

    ) (Hand Truck) (Hand Lift)

    1,000

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    ) (Stracker) (Truck)

    5,000 () 4.5 16.50 () 1.2 ( 90 )

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