High-Density Double Deep Pallet Rack Systems with Customizable
Design
Double deep pallet rack system is designed based on selective
pallet rack system that one row of back-to-back pallet racks is
enlarged into two rows of back-to-back pallet racks. And a
specialized forklift is equipped to reach double-deep pallets in
medium aisles.
Double deep pallet rack is a space-effective choice for the
warehouse since it reduces the number of aisles and increases
storage density. Besides, it follows the principle of
Last-in-First-out(LIFO), thus, 50% of cargoes are not directly
accessible.
In a word, double deep pallet rack system is an efficient and
cost-effective storage solution to help users to make good use of
their available space in warehouse.
Features of Double Deep Pallet Rack:
Double deep pallet rack system is popular for cold storage, dry
storage, and multiple same pallets. The following is the main
features of double deep pallet racks which you should take into
account when considering whether to apply double deep pallet rack
system.
| Advantages of double deep pallet rack | Medium to low storage system |
| Floor level is not critical (front loaded) |
| Disadvantages of double deep pallet rack | Loss of storage locations as only same SKU can be stored in front
storage positions |
| Recommended storage loss allowance 15-20% |
| LIFO inventory management |
| Limited storage height (10m) |
| Special trucks required |
| Poor visibility of rear upper storage levels |
| Reduced through-put rates when compared with Reach Trucks |
Specification of Double Deep Pallet Rack Truck:
| Aisle Width | Storage Area | Operating Aisle Area | Through-put Rate | Lift Height |
| 3.0 to 3.5m (medium width) | 55% | 45% | 12-18pph | up to 9.5m |
When to use double deep pallet rack system:
1) Store medium volumes of cargoes(no more than 3000 pallets);
2) SKUs in lots of two;
3) The cost of land is not too expensive;
Deep reach truck is specially used in double deep pallet rack
system. Its fork is designed to be able to up to reach two pallets
deep so as to store and retrieve pallets in the inner rows.
However, for the stability of the truck, the bottom two feet have
to drive into the first level beam. Therefore, double deep pallet
rack is required to design a first level beam next to the floor.
FAQ
1. What is double deep pallet rack?
Double deep pallet rack is a medium storage solution between
selective pallet rack and other high density pallet rack like push
back pallet rack. Two rows of back-to-back pallet rack are aligned
in medium aisles to provide efficient and comparatively
high-density storage.
2. How does double deep pallet rack work?
Double deep pallet rack system follows the principle of LIFO (last
in first out). Firstly stored pallet will be taken out last. The
inner pallets can not be taken out until the front pallets are
removed. Thus, selectivity is reduced to 50% in order to enhance
storage density.
3. What are the main benefits of double deep pallet rack system?
Compared with standard selective pallet rack system, double deep
pallet rack system is a more space-effcient choice. It reduces the
number of aisles and increases storage density by enlarging one row
of back-to-back pallet rack into two rows of back-to-back pallet
racks. Besides, its cost is less than other high-density pallet
rack systems.
