Material Handling Equipment - Industrial and Systems Engineering

8. STORAGE EQUIPMENT7. Sliding rackLocation of the aisle is changed bysliding rows of racks along guiderails in floor (a.k.a. mobile rack)Used when only single-deep storage ispossible and space is very limited orexpensiveAdv: High cube utilization andcomplete accessibility to all loadsDisadv: More expensive compared toother storage racks. Lengthy storageand retrieval times because one canonly pick in one lane at a time.Relies on having a reliable powersource available.Provides increased security for items compared to other racksTypically found in library stacks, vaults, and climate-controlled (e.g., refrigerated) storage rooms8. Cantilever rackLoads are supported by two or more cantilevered “arms” (i.e.,horizontal beams supported at only one end)Similar to pallet racks, except the front upright and front shelfbeams are eliminatedUsed when there is a need for a full clear shelf that can beloaded from the front without obstruction from rack supportuprightsTypically used to store long loads (e.g., bar stock, pipes, lumber)9. Stacking frameInterlocking units that enable stacking of a load so that crushing doesnot occurCan be disassembled and stored compactly when not in usePallet frames can be used to enable multilevel block stackingCost per frame: $100–$300 (can be leased for short-term increases in59