Drive-In & Drive-Thru Storage Systems
Drive-In rack is a high-density (LIFO) system best suited for last-in, first-out storage requirements. Drive-thru systems are similar to drive-in rack but can be (FIFO) accessed from either end and can be first-in, first-out.
These storage rack systems feature narrow pallet-storage lanes running perpendicular to the working aisles. Pallets are stored on the floor and on the parallel rails. Drive-In is a good choice for building inventories that ship periodically with low SKU items.
Drive-In Systems increase storage density by eliminating aisles and are multiple pallet positions deep.
Drive-In & Drive-Thru Storage Systems
For the right application a Drive-In system is a cost effective, high-density system where you have low SKU counts and selectivity is less important. The illustration to the right, depicts a warehouse with one main aisle separating two drive-in systems 8 pallet positions deep by four pallets high. Selectivity in this example is 13%... 4 high, divided by 32 pallet positions, (8 deep x 4 high) equals 13%.
High-density drive-in systems are ideal for LIFO storage applications having few items or SKUs and not particularly time sensitive products. Operators fill the system back to front to access all the pallet positions. Particular attention to proper loading, pallet specifications and lift truck dimensions is required.
Drive-In systems are commonly found in factories, warehouses, coolers and freezers.
Applications & Options:
Drive-In System Components
Basic Beams - Provide system rigidity and rail support in the back of the system.
Bolted-In Top Braces - Tie the uprights together for increased system rigidity and stability.
Bolted Connection - These rigid rail support arms are superior to other arms as these provide a bolted connection with grade-five hardware.
Rolled Rails This roll formed rail profile provides exceptional strength, load capacity and resists torsion when fully loaded.
Frames - Row spaces are used to create positive frame locations.
Rail Systems & Uprights
RIDG-U-RAK Drive-In Systems are available in roll formed or structural steel upright frames with rolled rails or space-saver structural rails.
Roll Formed Rails - Provide maximum load capacity and low torsional rotation when fully loaded. RIDG-U-RAK's wide-base profile improves pallet placement and its galvanized finish resists abrasion often associated with Drive-In systems. Space Saver Rails - Made of structural angle, this design maximizes the available vertical space. These rails reduce vertical clearance by 3" per pallet level. Splice Arm - Each end of the rolled rail is bolted onto a splice support.
Splice Connection - Space Saver rail splices are achieved using 4 bolts. Rail support & arms for both systems are secured with grade-five hardware for maximum load carrying capacity. The above illustration demonstrates rolled rail and space saver rail with the same number of pallet positions, exhibiting the vertical space differential for comparison.
Roll Formed Uprights & Rails
Splice Arm - Each end of the rolled rail is bolted onto a splice support.
Structural Uprights & Rails
Splice Connection - Space Saver rail splices are achieved using 4 bolts. Rail support & arms for both systems are secured with grade-five hardware for maximum load carrying capacity.
The above illustration demonstrates rolled rail and space saver rail with the same number of pallet positions, exhibiting the vertical space differential for comparison.
Design Considerations for Drive In Layouts
Configurations & Dimensions Critical for Design
RIDG-U-RAK recommends adherence to the National Wooden Pallet and Container Association (NWPCA) guidelines for pallet design and specifications. Traditionally, the accepted standard has been the Grocery Manufacturers' Association (GMA) pallet.
The Grade A GMA Pallet features:
As is the case with strict adherence to pallet specs, it is important to consider the load width, depth, height and weight to design the Drive-In system.
Ensure the lift truck can fit between the upright frames and can pass between the rails. It is also important that the lift truck has sufficient lift height to reach the highest rail level and has the capacity to lift the load safely.
Options (Frame & Beam)
Must be specified at the time of manufacturing
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Drive In Rack - Virtual Showroom
Drive-In rack systems are very high-density last-in, first-out storage solutions. These storage rack systems feature narrow pallet-storage lanes running perpendicular to the working aisles. Pallets are placed on continuous rails. Drive-In systems are an economical solution when the need for density is high, and selectivity is low. As a result, they are most effective when storing many pallets of few SKUs. Ridg-U-Rak's Drive-In pallet storage racks are available in either roll-formed and structural "space-saver" rails.
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…RIDG-U-RAK's drive-in design maxed our freezer space and improved our ability to expedite shipments