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Nashville state community college


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  • 1. Pallet Storage SystemsMaterial Handling Equipment
  • 2. Pallet Storage Block stacking:  Stored on the floor  Pallets are stacked on top of each other  Stack ability and stack height are dependent on the following factors: Weight General stability SOPs/Safety/OSHA acceptable safety limits Floor lead restrictions Physical height availability Crush limits
  • 3. Pallet Storage Block stacking:  Use when retrieving product based on LIFO (Last In First Out)  Not optimal for FIFO (First In First Out)  Best for large number of pallets for same SKU, low cost, no racking
  • 4. Block Stacking
  • 5. Pallet Storage Stacking Frames:  Portable and collapsible frames  Build as needed  Steel uprights with steel decking  Easy to collapse and storage is compact  Use for loads/pallets that are unsafe to stack on top of each other
  • 6. Pallet Storage Single-Deep Pallet Rack  Permanent racking only one pallet deep  Can store multiple SKUs in same column and row  Best to be used with loads that are not stackable and SKUs with only a few pallets of product
  • 7. Single-Deep Pallet Rack
  • 8. Pallet Storage Double-deep pallet rack  Permanent racking two pallets deep  Use with SKUs with five pallets or more of product AND retrievals that are in multiple of two pallets  Use with high volume SKUs  Can save significant space over single-deep pallet racks
  • 9. Double-Deep Pallet Rack
  • 10. Pallet Storage Drive-In Rack:  Able to drive into the rack  Racks are up to ten pallets deep  Pallets are stored on rails instead of decking  Use with SKU quantities of five pallets or greater  Best when have SKU totaling 20 pallets or more  Downside, much slower production due to confined space
  • 11. Drive-In Rack
  • 12. Pallet Storage Pallet Flow Rack  Similar to Drive-In Rack but has rollers on the rails  Pallets are removed FIFO from the side opposite from which it was loaded  As pallets are removed the remaining pallets roll forward  Use with SKUs totaling ten pallets or more
  • 13. Pallet Flow Rack
  • 14. Pallet Storage Push Back Rack  Similar to pallet flow rack  Pallets are removed LIFO from the same side they are loaded  Load new pallet by pushing existing pallets back  Remove a pallet and the remaining pallets flow forward
  • 15. Push Back Rack
  • 16. Pallet Storage Mobile Pallet Rack  Series of single deep racks abutted next to each other with no aisle in between  Aisles are creating by pushing or cranking rows apart  Upside: considerable space savings  Downside: very slow production
  • 17. Mobile Pallet Rack
  • 18. Material Handling Equipment Walk Behind Pallet Jack  May be manually operated or motorized  Operate from a walking position  Motorized versions may be capable of reaching low heights  Best for short distance move
  • 19. Material Handling Equipment Counterbalanced Lift Truck  Lift truck with the weight on the back end to counter the weight of the load on the forks on the front end
  • 20. Material Handling Equipment Straddle Truck:  Instead of using counterbalance to provide stability, this truck uses outriggers to straddle the pallet.
  • 21. Material Handling Equipment Side Loader:  Loads from the side. Forks are located on the side not the front.  Allows the operator to travel down the aisle without having to turn the truck to retrieve a pallet  Downside: Can only reach one side of the aisle from a given direction of travel.
  • 22. Side Loader
  • 23. Material Handling Equipment Turret Truck  Forks swing on the mast to either side  Allows for more narrow aisle spacing
  • 24. Material Handling Equipment Automated Storage Retrieval (ASR)  Generally computer controlled  Retrieval truck follows a computer controlled fixed path  Storage locations consist of a matrix of fixed locations