Push-Back Rack
Advantages:
- High Storage and Retrieval Efficiency:
By automating the movement of goods towards the picking face, it significantly reduces the time and
effort required for both storing and retrieving items compared to static racking systems. Forklifts spend
less time maneuvering within the racks, leading to faster cycle times.
- Improved Space Utilization:
Gravity flow racking makes efficient use of both vertical and horizontal space, allowing for high-density
storage similar to drive-in systems but with the added benefit of easy access to all units within a lane.
- Structural Stability:
Modern designs incorporate robust bracing and often use roller beds or skate wheels embedded in
the beams, providing a stable and reliable system capable of handling consistent product flow.
- Reduced Risk of Forklift Errors:
Since forklifts only operate at the designated input and output ends, the risk of damage to the racking
structure or misplacement of goods deep within the lanes is substantially minimized, enhancing
overall operational safety.
Push-back racking utilizes trolleys to carry goods and push them backward along tracks for storage. When storing the second item, the first item is pushed further back along the depth dimension. When retrieving items, the first position's trolley is removed, and the angle of the front track causes the goods behind to slide forward.
This system operates on a "first-in, last-out" (FILO) storage and retrieval principle.
The space utilization of push-back racking is similar to that of drive-in racking. However, forklifts do not need to enter the racking area to retrieve goods, significantly improving work efficiency. On the downside, the depth of storage positions is relatively limited.
Working Principle:
The operation of gravity flow racking is ingeniously simple yet highly effective. Goods are loaded onto pallets or containers at the upper, loading end of a slightly inclined rolling track. Due to gravity, these loaded units automatically and smoothly glide down the slope to the lower, unloading end of the lane. This design allows the forklift to operate exclusively at the entry point to load new items, and at the exit point to retrieve items, eliminating the need to navigate deep within the racking structure.