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SINGLE SELECTIVE RACK
Single deep selective
rack is the most widely used storage method used today. This
type of racking provides 100% selectivity & can
be designed to accommodate a wide variety of load types and sizes.
All types of forklift trucks can be used with this rack and it
typically offers the lowest cost per unit stored.
DOUBLE DEEP SELECTIVE RACK
Double deep rack systems use selective racks configured so one
pallet load is stored directly behind another thereby increasing
your storage density by 15-20% over standard single deep selective
rack. Because one load is stored directly behind the other, this
type of rack usually requires multiple pallets of the same SKU.
It also usually requires a double deep reach truck to effectively
access both loads from the storage aisle.
DRIVE-IN / DRIVE THROUGH RACK
For applications with
even greater numbers of pallets per SKU, Drive-In / Drive Through
racking may provide the best solution.
With this racking, forklifts actually drive into the rack system
to access pallets stored on pallet storage rails. This storage
method limits wasted aisle space & greatly improves the use
of the storage cube, it does however, limit selectivity because
loads must be removed vertically on each level before the next
layer is accessible (honey combing). Electric or LPG counterbalanced
forklift trucks are generally used with this type of racking.
PUSH-BACK or GLIDE-IN RACK
This style of rack usually offers the best solution when both
high density storage and product selectivity is required. From
the storage aisle, pallet loads are placed onto nested load carts
and are pushed backward when the next load is placed into the
system. Loads can typically be stored from two to six loads deep
on each level. As loads are pulled from the levels, the remaining
loads flow forward to the aisle for access. Because these loads
flow to the aisle, you eliminate the “honey combing
effect” of
Drive-In / Drive-Through Racking. Since loads flow towards the
storage aisle, most types of forklift trucks work well with this
racking.
CANTILEVER RACK
Cantilever racking
is selective racking for long loads (typically 10’ or longer). Loads are stored vertically on load arms (instead
of load beams), that are spaced appropriately to support
the longer loads. They provide 100% selectivity and can be designed
to accommodate a wide variety of load types, such as; Metal Bar & Rod
Stock, Building and Construction Materials, Retail Furniture,
ect. Most types of forklifts can be used with Cantilever Rack
however; Four-Directional or Side-Loading Trucks can greatly
improve space efficiency by keeping the storage aisle smaller
than the length of the load.
PALLET FLOW RACK
Pallet Flow Racks are best used in applications where there
are multiple pallets of the same SKU in a high velocity operation.
Pallets are loaded into the system from one end and flow through
the racking to the opposite end on pallet flow rails, where they
are unloaded. Because each pallet flow lane is sloped, the length
of the flow lane is usually determined by the available clear
ceiling height in a building. This rack style is usually ideal
for time sensitive loads and guarantees First-In / First-Out
storage methods. Again, most types of forklifts can be used with
this racking; however the height of the system may require the
use of tall Reach Trucks or Turret Trucks.
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