Glossary


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61) Pallet flow rack

May be considered back-to-back selective rack.  Inclined conveyor wheel sections are installed in the rack enabling back-loaded pallets are allowed to flow by gravity to the front or pick face.  Pallet flow rack is useful for the movement of fast-moving items and serves to increase density of storage and throughput.

62) Pallet stacking frame

A load securing device that often can take the place of containers or bins. This device consists on iron posts and connecting frame members resting on the four corners of a pallet creating an open container in appearance with a certain amount of load retention ability. The frames are removable for storage, but when in use, the loaded pallets can be block stacked on the floor. This is a particular advantage for unit loads that would not stack safely without the rigid frame. There are other attachments such as special metal frames and welded wire gates, but none of these allow for pallet stacking.

63) Full perimeter pallet

A pallet which utilizes a block design and incorporates the use of deckboards and stringer configured in the same plane.  Such a configuration results in the formation of a complete framework on both ends and both sides.

64) Injection molded pallet

Plastic material is introduced in pellet form into a "hopper" positioned at the top of a machine and forcing it along a horizontal chamber or "barrel" of an extruder by means of the rotation of a screw.  The plastic material is heated as it moves through the barrel so when it reaches an open cavity, it is a molten mass ready to assume the configuration of the mold. The mold is closed and pressure is applied to form the pallet.  Once the pallet is cooled and taken from the mold, it can be further processed into secondary operations such as painting, trimming or fastening.

65) Blow molded pallet

A pallet manufactured by heating a plastic material and extruding it into tubing.  A section is cut to the desired length to create a parison which is then introduced into a mold cavity.  Air is introduced into the parison to inflate the parison until it conforms to the geometry of the mold.  When the part is fully formed and cooled, it is released from the mold for secondary operations such as machining and trimming.

66) Rotational molded pallet

A predetermined amount of powdered, granulated or liquid plastic is introduced into a hollow, shell-like mold.  This is followed by the closing, heating and rotating of the mold in two planes perpendicular to each other in order to distribute and fuse or "sinter" the plastic material to the internal configuration of the mold. Once the plastic mold is fully cured and the part is fully formed, the mold is removed from the eat source, and it undergoes accelerated cooling using either a water mist or cold air.  The pallet is then removed from the mold.

67) 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.

68) Compression molded pallet

Plastic material is placed in an open mold, which is then closed.  Pressure is applied as the mold halves come together (usually in a vertical configuration), forcing the plastic material to flow and fill the cavity.

69) Reusable Container & Pallet Association (RCPA) Industry Group

The Reusable Container & Pallet Association (RCPA) members are the Industry’s leading suppliers of the reusable/returnable industrial plastic containers, pallets and packaging. They supply solutions worldwide and in virtually every major manufacturing and distribution sector.

70) Deflection

The amount of deformation or bending in a pallet or pallet component under load.

71) Wrap around

An attachment to a pallet which, when placed on the top of a pallet load, adds support and stability to the load and enables pallet loads to be stacked one upon the other.

72) Notched stringer

The stringer on a pallet that possesses identical notches which are spaced such as to allow forks to enter pallet.

73) Stringer board

A component of a pallet that is a solid board placed between the deckboard and the block and extending the full length of a block pallet.

74) Four-way fork entry

Openings on all four sides of a pallet or the base of a pallet container, which allow fork truck handling.

75) Contained load

A pallet load of items or cartons (either identical or mixed in terms of size or contents).