Rak palet

1. Pallet Racking

Pallet racking is probably the most common form of storage system used in warehouses. The rack consists of uprights which support beams.

2. Pallet Dimensions

Australia is fortunate that we have a standard pallet that is common to many warehouses. It can be interchanged from warehouse to warehouse. The dimensions of this pallet are 1170mm by 1170mm and 150mm thick and this should be remembered by stores personnel.

The pallet dimensions and overhang effect the dimensions of racks and aisle sizes in a pallet rack storage system.

 3. Selective Racking

Many varieties of rack storage exist, the most basic and common rack is the "Selective rack". This rack generally stores two pallets per bay. A bay is described as between two uprights. This is the simplest of all storage systems and provides direct access to all pallets. The density achieved with this form of storage is approximately 50% as the aisles and racks share approximately equal space, (if reach fork trucks are used).

Advantages:

  • Easy to adjust, change or relocate.
  • Prevents damage to goods from compression.
  • Enables access to any pallet without moving others.
  • Bottom pallet is stored on the floor.
  • Can be used up to 8 metre heights providing frame sizes are increased.

4. Racking Parameters

  • Pallet racking is designed around the Australian Standard Pallet and has a frame size of 838mm so as to lock the pallet onto the beams.
  • Clearances must be provided around the pallet of at least 75mm. If there is any overhang then operating functions are compromised and pallets may be dislodged.
  • Therefore it is important that the rack loading codes are followed and that the load does not protrude beyond the pallet as this reduces the designed clearances.
  • It is very common to see cartons that protrude beyond the perimeter of the pallet. If this is unavoidable then new racking is required, designed not to the standard 1170mm x 1170mm but to the dimensions that the real pallet perimeter represents.

5. Pallet Rack Safety

  • Select each arrow for more information.

  • The load carried by pallet racks can be very large and it is essential that all safety aspects of the racks are fully understood.
  • Beams should be held in place by safety locks to ensure that the beam is not dislodged by forklifts.
  • The uprights of the rack should be protected with column protectors so that a vehicle will not dislodge the upright.
  • Under the load of the pallets the beams can bend. The extent of this bending must be monitored and if it is excessive your supervisor must be notified.
  • A capacity plate should be fitted to the rack to identify the loading specifications for the rack.

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