Push Back racking
Pushback racking is a dynamic storage system used in warehouses and distribution centers to maximize storage density while allowing for a high degree of selectivity and efficient use of space. It’s designed for storing palletized goods and is particularly useful when dealing with products with varying SKUs and a limited number of pallet positions. Here’s an explanation of how pushback racking works and its key features:
- Storage Concept: Pushback racking operates on the principle of LIFO (Last-In, First-Out). This means that the last pallet loaded onto a given lane will be the first to be unloaded. It’s ideal for products that don’t require strict FIFO rotation, such as non-perishable goods or products with long shelf lives.
- Nested Cart System: The heart of a push-back racking system is a set of inclined rails or lanes, each equipped with a series of nested carts. These carts are attached to the rails and can move forward and backward within the lane.
- Loading and Unloading: To load a pallet, a forklift operator places it on the cart closest to the aisle entrance. As more pallets are loaded onto the lane, they push the previously loaded pallets deeper into the racking system. Hence, the term “push back” – newly loaded pallets push back the existing ones.
- Gravity-Assisted Movement: Gravity plays a crucial role in the system. As pallets are loaded onto the lane, they move forward due to the slight incline of the rails and the force of gravity. Unloading a pallet is as simple as removing the front pallet, allowing the remaining pallets to roll forward to fill the gap.
- High Storage Density: Pushback racking allows for high storage density because it utilizes both depth and height within the racking structure. This can significantly increase the number of pallet positions compared to traditional selective racking.
- Selective Access: Despite the high storage density, pushback racking provides selective access to pallets. You can access any pallet in the lane without disturbing the others. This makes it suitable for warehouses where product SKUs change frequently.
- Reduced Aisle Requirements: Pushback racking reduces the need for wide aisles between racks, as there is no requirement for forklifts to enter the rack structure. This results in space savings and more efficient use of available floor space.
- Safety Features: Safety features, such as brakes on the carts and visual indicators, help ensure that the system operates smoothly and that pallets do not become jammed or overloaded.
- Maintenance: Regular maintenance is essential to keep the system in good working condition. This includes checking for damaged carts, rails, and other components to ensure safe operation.
Pushback racking is a versatile and efficient solution for many warehouses, especially those dealing with multiple SKUs and products with varying storage lifespans. It optimizes space, reduces labor requirements, and provides access to a variety of pallets without the need for complex machinery or extensive aisle space.
