How to Optimization Pallet Storage and Picking

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World-Class Warehousing and Material Handling

Figure 5.31 Sit-down counterbalance lift truck with ram attachment (BP, Dalton, GA)

Straddle Trucks A straddle truck provides load and vehicle stability using outriggers to straddle the pallet load instead of a counterbalanced weight (Figure 5.34). As a result, the aisle width requirement is 8 to 10 feet as opposed to the 11 to 12 feet required by a counterbalance truck. To access loads in storage, the outriggers are driven into the rack, allowing the mast to come flush with the pallet face. Hence it is necessary to support the floor-level load on rack beams. Straddle Reach Trucks Straddle reach trucks were developed from conven tional straddle trucks by shortening the outriggers on the straddle truck and providing a “reach” capability with a scissors reach mechanism (Figures 5.35 through 5.37). In so doing, the outriggers do not have to be driven under the floor-level load to allow access to the storage positions. Hence no rack beams are required at floor level, conserving rack cost and vertical storage requirements.

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