Glossary


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1) Pallet lifter

A below-the-hook lifting device that utilizes forks in its design and serves to take the role of forklift forks while utilizing the capabilities of a crane and/or hoist.  Generally, counterweighted at its top and attached via a bail and hook arrangement.

2) 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

3) Pallet truck

A manually powered fork truck. The operator physically pushes the forks into the opening on the pallet and "jacks" the racheting lift mechanism so as to raise the pallet off the floor. Once lifted, the load can be manually moved from place to place.

4) Platform ends

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

5) Platform truck

Industrial truck with a platform rather than forks for supporting the load: it cannot lift, load or unload.

6) Rotary rack

A rotary rack is a special variation of a horizontal carousel. In this case each vertical level or storage location is mechanically independent of the location above or beneath it. Each level in turn is driven by a separate and independent drive. Therefore, simultaneous, independent rotation of each level is possible (in any direction). Although replenishment and picking can be accomplished manually, most rotary racks incorporate automatic load inserters and extractors. See also Horizontal Carousels and/or AS/RS .

7) 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.

8) Push Pull Equipment

Hydraulic fork lift truck attachment which can be used for palletless handling applications. The pushpull attachment needs to be used in combination with a slipsheets. Another attachment for palletless handling operations are special lift truck forks which contain two layers of rollers.

9) 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.

10) Ratchet hoist

A lever operated manual device used to lift. lower, or pull a load and to apply or release tension.  Utilizes a ratchet and pawl mechanical configuration to incrementally raise or lower a load or to apply or release tension.

11) Ratchet lever hoist

A lever operated manual device used to lift. lower, or pull a load and to apply or release tension.  Utilizes a ratchet and pawl mechanical configuration to incrementally raise or lower a load or to apply or release tension.

12) Push type crane

An overhead traveling crane whose horizontal travel is powered manually or by the operator.  Often work station cranes are push type cranes.  This crane may or may not utilize powered hoist or lifting mechanisms.

13) Plastic pallet

A device used for moving and storing freight.  It is used as a base for assembling, storing, stacking, handling, and transporting goods as a unit load.  Commonly, it is about four feet square and is so constructed to facilitate the placement of a lift truck's forks between the levels of a platform so it may be moved easily.

14) Palletizer

Palletizers are special machines capable of building a complete unit load on a pallet. Although the most common application is for cases, some palletizers can also handle sacks and bags. A less common palletizer application would be for special products such as sheet stock. There are two general methods employed for automatically building a full pallet. One makes use of a fixed position or overhead gantry robot with end effectors suited to the individual loads, such as vacuum lifts or a gripper. The other method employs more complex mechanisms for forming pallet layers off line, one at a time, and then shifting or transferring each successive layer onto the pallet as it is lowered via a lift/lower table.

15) Pallet

Generally constructed of plastic, metal or wood, a pallet is a piece of transportation/movement equipment utilized in the movement of unit loads. Usually "fork-liftable" in that it is designed to accept forks between the top and bottom platforms of the unit. A portable, horizontal, rigid platform used as a base for assembling, storing, stacking, handling and transporting goods as a unit load, often equipped with a superstructure.