Glossary


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1) Tracking software

Software programs developed specifically to enhance the "tracking" of returnable containers and pallets

2) Structural foam molded pallet

Structural foam molding is a variation of the injection molded process whereby a compounded plastic material is introduced into an extruder in pellet form, heated to a molten state, and then formed by means of a rotating screw into one or more mold cavities.  The material adopts the configuration of the mold, and once cooled, it is injected as a fully formed pallet. With structural foam molding, a blowing agent is introduced to and mixed thoroughly through the plastic prior to its injection into the mold cavities.  The heating process activates the blowing agent and creates a cellular structure within the molten material. This cellular structure not only saves on raw material requirement, but it produces a part with an elevated strength-to-weight ratio.

3) Thermoformed pallet

Thermoforming takes place when a thick plastic sheet is clamped onto a frame and heated, then this softened, pliable sheet is forced by either pressure or vacuum to adapt to the shape of a pallet tool.  Once the sheet has formed to the configuration of the tool and it has cooled down, it is removed from the frame.  The outer perimeter of the pallet is trimmed off to yield the finished part. Twin-sheet thermoforming is a variation of this process whereby two separate sheets of plastic are heated in two separate sets of tooling and then fused together under pressure to yield a pallet with a hollow section or sections.

4) Single deep rack

The simplest of all racking systems. This rack is selective and accommodates only a single pallet.

5) Side loader truck

An industrial truck with lifting capabilities and able to accommodate the narrowest of aisles, depending upon the model and type, all the way down to the 5 foot range. Trucks operating in this range are sometimes called very narrow aisle (VNA) trucks. With the exception of the platform type sideloader, the fork and/or the entire mast on a VNA style truck is capable of rotating or swiveling 90 degrees left or right within the aisle from the down aisle orientation. Some manufacturers have models that can stack in storage racks 10-12 pallets high.

6) Stacking frames

Portable storage aids for attachment to pallets to enable stacking of unstable items two three or more units high.

7) Storage racks

A single or multi-level structural storage system that is utilized to support high stacking of single items or palletized loads.

8) Selective rack

Steel storage racks arranged in either single or back-to-back (double) rows.  Each of the rows offers a bay or number of bays in the down aisle direction.  Pallets are generally positioned side-by-side in the down-aisle direction at each level of the bay.  The advantage to this configuration of rack is that all pallets are accessible from the facing aisle.

9) Unit Load AS/RS

Machines that store large loads (usually 1,000+ pounds), typically on pallets with storage rack structure, reaching 100 feet or more tall.

10) Unit Load AGV

A unit load AGV is a powered, wheel based transport vehicle that carries a discrete load, such as an individual item (e.g. a large roll of paper, coil of steel or automobile engine) or items contained on a pallet or in a tote or similar temporary storage medium. AGVs operate under computer control without the need for human operators or drivers. See also AGVS .

11) Skid

A pallet that does not utilize a bottom deck.  Generally supports the top deck by means of blocks and stringers.

12) Slave pallet

A pallet used in an automated rack system.

13) Stacking pallet

A pallet constructed in such a manner as to allow one pallet complete with load to be placed on another without damage to the lower unit load.  This is generally achieved by utilizing a superstructure within the pallet.

14) Type III pallet

Double-faced, flush-stringer or block, reversible pallet.

15) Solid deck pallet

A pallet constructed with no spacing along the deck(s).