Push Back Pallet Racking Systems operate similarly to pallet flow rack in that they are also designed to utilize the natural force of gravity to move the pallets within the system, but that is where the similarities end. Push back rack works by placing pallet loads on a series of nesting carts that are fed forward by gravity on rigid structural steel rails.
As a pallet is loaded from the front of the rack system onto a nesting cart, it pushes the pallet behind it back one position. The reverse happens when you unload the front pallet, the pallet behind it will automatically move forward to the front picking position.
This type of system is called Last-In-First-Out (LIFO) inventory management. Typical systems can store pallets2-6 deep, with front-only loading and unloading from a single aisle. Unlike Drive-In pallet rack, the driver never enters the pallet rack system, and each lane, and each level, flow independently of each other, allowing you to store a variety of SKU’swithout disturbing product in the other lanes.
Push back rack systems can be installed against a wall and operated as a single-sided system, or located in the middle of an area and operated as a double-sided system. Because each lane flows independently, push back pallet racking allows you to store more pallets, but with better selectivity than drive-in pallet rack. Compared to standard selective pallet rack, push back racking can save you up to90% storage space.
The main component of push back pallet racking is the carts. The cartsare moved along the inclined rails by gravity,with the rails being adjustable vertically to control the pitch.The carts neston top of each other and slide back onepallet position when a new pallet is added, and slide forward one position whenone is unloaded. Each pallet has itsown cart, with the last pallet resting on the rails running the length of the bay. Each cart is equipped with four wheelsallowing them to flow smoothly along the rails.
As each pallet isunloaded,all pallets behind glide forward gently untilthey come to rest on the rubber bumpers at the front of the pallet rack system.
Because the LIFO stock rotation of push back pallet racking systems is automatic, and pallet loads are easily accessible,push back is an ideal high occupancy storage application.
Features & Benefits of Push Back Pallet Racking
- The system is optimally used for LIFO (last in, first out) storage
- Increase storage density up to 100%
- High density storage utilizes warehouse space with fewer aisles.
- Larger number of SKUs can be efficiently stored
- Gravity flow pallet picking system
- Carts with wheels allow pallets to easy flow downward to picking position
- Low profile, nesting cart system allows for maximum storage height.
- Each lane and each level operate independently
- Commonly configured 2,3,4,5 or 6 pallets deep in each lane (12 for back to back rows)
- Quick, immediate access to every product
- Quick and easy loading and unloading of pallets
- Faster and safer than drive-in style racks
- Forklifts never have to enter the system, decreasing the chances of rack damage
- Specialized lift trucks not required
Push Back Pallet Rack is Ideal for:
- Multiple number of SKUs
- Medium turnover products with 2 or more pallets per SKU
- Can have multiple lanes of same product with different dates