Glossary


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1) Roller diverter

A device on a conveyor sortation system used to move a case/carton/piece off the main line.  This device utilizes "pop-up" type rollers to redirect the object in a predetermined direction.

2) Powered wheel diverter

A device on a conveyor sortation system used to move a case/carton/piece off the main line.  The device utilizes wheels(skate) that are powered to raise up form the conveyor bed and divert the objects in the desired direction.

3) Case

An unopened container, usually made of corrugated cardboard, containing merchandise as it was received from the vendor.

4) Case pick

The selection of merchandise packaged in shippable cartons for orders from a pick location onto a transporting device (conveyor, cart, pallet).

5) Case pick from pallet

This is a selection activity performed within a specific type of storage area (often pallet rack).  Merchandise movement into these locations is in pallet load quantities from receiving or reserve storage locations.  Merchandise movement out of these locations is in case quantities.

6) Diverter

A device on a conveyor sortation system used to move a case/carton/piece off the main line.

7) End/side axle load capacity

The maximum amount of single axle laod (in the case of rolling loads) which may be applied to the loading edge of a lift platform (end or side) when the lift is in its raised position.

8) Broken case

An open case.  The term is often used interchangeably with "repack" or "less-than-full-case" to name the area in which materials are picked in that form.

9) In-line diverters

Moving surface or in-line diverters are an integral part of the main conveying surface and in all but one case pop up on controlled command, coming in direct contact with the underside conveying surface of the load.

10) 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.

11) Shoe sorter conveyor

The conveying surface consists of continuously linked slats. The linked slats move in a manner similar to a belt. Between each slat, along one side, there is a shoe that moves along with the slats. Each shoe is capable of simultaneous independent lateral movement from one side of the conveyor to the other at the same time as it continues to move forward. At the appropriate time, controls sequence as many shoes as necessary, depending on the size of the load, to move from one side of the conveyor to the other, contacting the side of the load, thus directing the load to one of multiple discharge or take-away lanes. The take-away lanes can be powered by gravity. At the end of the run, after the last take-away lane, and on the return (remember the main sort lines move like a belt), the shoes are all reset to their original side. Such sorters are capable of higher sort rates in the range of 150 cases per minute. Another name for this type of sorter is surfing sorter .

12) Tray sorter

A high speed type of sorting conveyor with sorts in the 250 cases per minute range, this type consists of a continuously moving train of independent trays that move in a straight line and recirculate in either a horizontal or vertical (over and under) closed loop. At the proper moment, controls cause the tray to tilt to either side, thereby discharging the load to the desired take away lane.

13) 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.

14) Split case order picking

A  process used to fill orders for quantities less than a full case thereby requiring ordered items to be picked from a case or some similar container.

15) Manipulator

A stationary (does not mean that nothing moves) movement assist device that is often equipped with end effectors for handling different types of loads. End effectors include all forms of grippers, forks, barrel grabs, etc. Manipulators counteract the weight of the load, rendering it almost weightless by way of hydraulic or pneumatic cylinders, or simply by way of counter weights and the exercising of very limited manual control. Most manipulators require manual actuation and control and are therefore manual assist devices. They are mounted to the floor, wall or ceiling. In some cases, manipulators are mounted to a fixed base plate and the entire unit can be moved via a trolley, cart or frok lift truck.