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1、Appendix 1 - Storage systems,Updated 14/01/03,1,Small parts storage & picking systems,Paternoster or Vertical Carousel,Mezzanine floor shelving,Shelving,Draws in Pallet racking,Shelf storage stacker crane,Powered Mobile Shelving,Horizontal Carousel,2,High density small parts storage and picking,Cart
2、on live storage,Longspan shelving + mezzanine floor,Mini-load,3,Mini Load - AS/AR (OSR - Order storage & retrieval),parts to man configuration very large number of SKUs random location items held in totes single cranes per aisle mixed cycle storage & picking high density storage slow to medium throu
3、ghput distribution centre, parts, WIP & kitting,4,Small parts item weighing,Sensors placed under tote boxes linked to read write RFDT for use on multiple components. Use manufacturing supply of small low value components fixings. Permits error free live updating of warehouse records. For higher cost
4、 items can be linked to an issue order so giving full traceability,Source: Manufacturing & Logistics IT Oct 2002,5,Combined storage and picking systems - carton live storage,Source: temperature controlled logistics Sept 2002,man to goods limited height availability high variety SKUs low throughput c
5、ombined storage and picking suitable for wide variety of goods and conditions high speed where linked to WMS and pick to light high stock accessibility good stock rotation good separation of feed and pick functions honeycombing manual feeding of stock requires good outer cases,6,Combined storage & p
6、icking Horizontal Carousel,parts to man single bin per operation used in multiple pods limited height availability heavier items high variety SKUs low throughput combined storage and picking cycle high speed where linked to WMS capital cost 40 - 60k+ high stock accessibility higher noise levels,7,Ve
7、rtical Carousel,Combined storage & picking Vertical Carousel,combined storage and picking cycle high speed where linked to WMS capital cost 40 - 60k+ high stock accessibility low noise levels advanced type can have separate vertical zones,parts to man single bin per operation good height utilisation
8、 high cube items high variety SKUs medium throughput,8,Palletised storage systems :Block Storage,Features : unit load placed directly onto floor limited depth - 6 plts deep,- back to back 2x6 often used with counter balance - narrow chassis single product per line- limited SKUs large holding Advanta
9、ges : no capital equipment required high floor utilisation 55% simplified management can use random access Disadvantages : limited stacking height 3-4 plts, - post pallets, converters difficult to achieve First In First Out (LIFO) limited access to pallets / greater need for double handling typical
10、occupancy 60 -70% - honey-combing computerised location can be difficult to achieve,Honey combing,9,Block storage warehouse,10,Palletised storage systems :Adjustable Pallet Racking,Features : vertical end frames, horizontal cross beams, usually storing 2 pallets per beam up to 8 m high variable slot
11、 heights, typically 1.5 -1.7 m large number of SKU, variable to low stock holding per SKU - low density cost per pallet stored 20 - 22 Advantages : open access to all locations, FIFO, good control high occupancy rate 90 -95% good retrieval rate flexible - reserve or pick locations easily adjustable
12、and changeable Disadvantages : low space utilisation 30% - nos. of aisles higher handling costs,11,Adjustable Pallet Racking,12,Palletised storage systems :Double-deep pallet racking,Features : Standard APR placed back to back, each bay 2 plts deep x 2 wide requires floor level bottom beam limited S
13、KUs with high stock holding per SKU - medium density cannot mix SKUs per bay location Bulk store application Cost per pallet stored 22 -24 Advantages : improved floor space utilisation 45% Disadvantages : limited access to each pallet LIFO constrained random access potentially increased double handl
14、ing slower retrieval rate - higher damage expensive double deep reach trucks limited pallet weights - derating needs high quality pallets,13,Double-deep pallet racking,14,Palletised storage systemsDrive-In (Drive Thru) Racking,Features : vertical support frames, tied at top, with cantilever support
15、beams forklift drives in or through the rack limited SKUs very high stock level per line - high density - seasonal movers -large single batch loads Bulk store, cold store application racked block storage - LIFO Cost per pallet stored 40-45 Advantages : achieve greater height, less damage than block storage high floor space utilisation 80 - 85% can use with counter balance truck can also be used for picked orders Disadvantages : needs high quality pallets limited stock access should clear all rows in a bay, occupancy 60 -70% difficult to move or modify,15,
