Pallet Flow Rack

Pallet flow storage systems use a combination of elevated rails and dynamic components (wheels, rollers, conveyors) within a rack supported structure. Flow systems put the power of gravity to work. Pallets are loaded on the high end of the rolling lane and move towards the other end by force of gravity where they are ready to be unloaded.

Flow storage systems are considered a high density storage system because of their ability to store more pallet loads in the same amount of space compared to standard selective rack systems. Flow storage systems only require an aisle for loading and another aisle for unloading, allowing for the storage of multiple pallet loads back-to-back. As a result, flow systems can offset the need for new construction and reduce a variety of operational expenditures like forklift, labor and energy.

Flow storage is specifically designed for first-in, first-out (FIFO) pallet storage. The flow storage system is based on two parts:

  • Dynamic elements that move product down the flow lane
  • Static elements that physically support the system

The dynamic elements of a flow storage system consist of various wheel or roller components installed within a declining frame to move pallet loads from the elevated end of the flow system to the opposite end by means of gravity.

Brakes are sometimes spaced at various intervals within the flow rail system to keep pallets moving at a controlled speed, protecting the pallet and pallet load from undue jolts and impacting each other, causing possible product damage.

Pallet entry guides may be used to help warehouse personnel position the pallets correctly within the flow rail system. Pallets ramps are also available at the exit end of each flow lane to reduce end impact and help bring pallet loads to a gentle stop.

Flow Storage facts:

  • Provides high-density storage
  • First-in, first-out (FIFO) inventory control, with automatic inventory rotation
  • Best for storage of like items and high volume items
  • Made up of dynamic flow rail and static rack structure
  • Loads on inclined end, unloads on opposite (declined) end
  • Flow created by loading action and gravity with no energy consumption
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