Glossary


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211) 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.

212) A-frame picking system

Utilized to facilitate the picking of a wide size and shape variety of individual items, the A-frame is extremely popular with drug and pharmaceutical distribution facilities.  As the name implies, individual items are loaded or stacked in two rows of dispensing magazines (one or more magazines per item) that are arranged side-by-side, forming an "A-frame".  A belt conveyor passes through the long tunnel created by the A-frame.  As orders are filled, one at a time, items automatically dispensed from the bottom of selected magazines are kicked onto the belt conveyor, and then they are carried to the end of the tunnel where they fall into a tote.  The tote is then transported by another conveyor to an order and/or packing station.

213) Pick and place industrial robot

The "pick and place" industrial robot is used to feed or disengage parts or tools to or from a machine, or to transfer parts from one machine to another. A variation of a "pick and place" robot is used to build and undo unit loads on a pallet.

214) 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.

215) Stacker crane

The stacker crane in appearance looks like a conventional bridge crane except that in place of a hoist, a rotating ridged or telescoping mast is suspended from the bridge trolley with the mast equipped with a load handling device such as single or double forks or a grab. These cranes can be manually operated or powered and are used where the carne spans multiple aisles allowing for the storage and retrieval within any aisle of items such as coils of steel.

216) Clamp

A below-the-hook attaching device which, using a jaw-like scissor gripping action, clamps or locks onto a piece of material. This device is attached to the hook of a hoist or the end effector of a manipulator and usually is used to pick up sheets of material such as wood or metal.

217) Nets

A basic form of below-the-hook lifting attachment which is suspended from a hoist or other lifting mechanism and simply wraps around the object to be moved and lifts it totally. Mesh netting is also used for securing loads to pallets.

218) Euro-pallet

The standard pallet in Europe. It is 1200 mm by 800 mm in dimension and has a wood block design between the top and bottom permitting four-way or four-sided entrance by lifting forks. Although other sizes exist in Europe, they are not nearly as prominent as the Euro-pallet.

219) 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.

220) Strapping

A load stabilizing and securing methods wherein a variety of materials can literally be used to wrap or tie down a load or individual item for movement and protection. These materials include cold rolled low and medium carbon steel, hot roller high tension steel, polyester, nylon and polypropylene. Each of these materials has special properties that need to be closely matched to the load requirement.

221) Stretch film

This is popular method of securing loads, especially the irregularly shaped unit load and loads that cannot tolerate the strain of being strapped. This film is tensioned and stretched mechanically as it is unwrapped from its rolls. The tension is released as it is wrapped around the load. The result is greater holding power.

222) 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.

223) Contained load

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

224) Straddle crane

A crane that is configured to "straddle" a load and often is wheeled. Often used in lumber yards or to move large containers at sea ports.

225) Dynamic storage system

A storage system that provides varying means of either mechanically moving storage locations or loads within the systems so as to increase storage density and/or to increase storage, retrieval and order picking throughput.