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31) Platform ends

The edges of the lift platform that are perpendicular to the scissor legs.  The end dimension is considered the platform width.

32) Rated capacity

The maximum load which can be applied according to the manufacturer's specification.

33) Rated load

The maximum capacity as specified by the equipment nameplate.

34) Rollover capacity

The maximum amount of single axle load which may be rolled over the platform surface when the lift is in its fully closed position.

35) Picker pallet

A pallet used in distribution operations wherein the center stringer or block is grabbed by a center clamp to steady the pallet enabling goods to be stacked on it at an elevated height.

36) Rental pallet

A pallet owned by a third party, different from the actual user.

37) Returnable/reusable pallet

A pallet designed to be used for more than one trip.

38) 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.

39) Returnable plastic container

Refers to collapsible, hand-held plastic containers used mostly for produce handling in closed loop packaging systems.

40) Principles

A principle is a general rule, fundamental, or other statement of an observed truth. Over time certain fundamental truths of material handling have been found to exist. The "principles" of material handling are often useful in analyzing, planning and managing material handling activities and systems. At the very least they form a basic foundation upon which one can begin building expertise in material handling. These principles, that serve as a starting point to identifying potential problems and assessing need, are: 1. Planning 2. Standardization 3. Work 4. Ergonomic 5. Unit Load 6. Space Utilization 7. System 8. Automation 9. Environment 10. Life Cycle Cost To receive a complete explanation for each of these :"Principles", contact the Material Handling Institute at (704) 676-1190 and ask for the document, "The Ten Principles of Material Handling".

41) Pop-up skewed wheel sorter

An in-line diverter conveyor that has wheels that pop up between the rollers of a powered roller conveyor or between belt conveyor segments and direct sorted items onto a powered take-away line. Fairly high speed sorting, in the range of 120 cases per minute, can be achieved.

42) Pop-up chain sorter

The change in conveying direction is limited to being perpendicular to the original flow. Such a system is not suited to high- speed sortation and is mainly used for a load transfer or simple directional changes. It is suited best to handling heavy loads such as full pallets.

43) Poternoster

A type of vertical conveyor that provides for continuous operation of multiple, equally spaced, load-carrying units fixed to chains that move continuously in an endless loop. With such a system the loading and unloading, usually automatic, occurs while the conveyor is running, resulting in greater throughput and an even flow of loads. This type of vertical conveyor is common in Europe

44) Platform conveyor

Another form of the conventional poternoster (See definition for Poternoster) is the platform conveyor that consists of multiple, equally spaced battens which form rigid horizontal surfaces in one direction (up and down) but behave like the front of a roll top desk on the return. Platform conveyor is an effective means of moving a continuous flow of pallets or other unit loads between levels. Another variation of the posternoster concept, which permits both vertical and horizontal movement of load, consists of freely swinging platforms suspended between two parallel chains.

45) Power and free conveyor

A variation of overhead chain conveyor is "power and free". In a conventional overhead conveyor the carrier is permanently fastened to the drive chain, in the power and free case the carrier can mechanically disengage from the drive chain and essentially idle while the chain continues to move. Power and free conveyors can also be inverted so that they can be mounted to the floor, in which case the carrier or tray rides on top of the guiding rail as opposed to being suspended beneath it.