Glossary


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16) Coil grab

Lifting devices, generally attached to a hoist or lift truck, which attach to a coil's OD via tongs or gripping mechanisms and enable the coil to be lifted without damage to the material.  May also be configured to "turn" the coil over or move it in directions other than vertical.

17) Tong grab

A lifting attachment usually used in conjunction with a hoist or forklift that utilizes a "scissors" action to grip a load for vertical lifting or transport.

18) Drum turner

An attachment to a fork truck, lift table or below-the-hook on a hoist that enables that piece of equipment to turn over drums for filling and emptying.

19) Spreader beam

A below-the-hook lifting device that utilizes two or more hooks (attaching devices) located along a beam and the spreader beam attaches to the hoist by means of a bail.  The spreader beam is used to handle long or wide load and serves to "spread" the load over more than one lifting point. Often used in conjunction with slings.

20) Bottom block

The device at the bottom of a hoist's lifting medium (chain/wire rope) through which the medium is reeved and supports the hook and/or an attachment.  May be stationary or rotating depending upon the requirements for the piece of lifting equipment.

21) 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.

22) Lifting beam

A solid or fabricated metal or wooden beam, suspended from a hoist/crane or from forks of a forklift, designed to provide multiple lifting points.  The lifting beam enables the user to attach the load at more than one point therein securing and controlling the load's movement.

23) Vacuum lifter

A lifting device utilizing the creation of vacuum to attach itself to an object via the use of an electric-powered extraction pump and sealed pads. Generally suspended from a hoist/crane, manipulator, balancer, or positioner.  Often attaches to the lifting mechanism by means of a bail and hook arrangement or is an integral part of the positioning and lifting mechanism.

24) Hook rotator

A motorized device that powers the rotation of the hook attached to the bottom block of a hoist. The hook on a bottom block generally rotates manually but due to the weight of a load and/or the need for controlled hook movement, this hook rotation is driven by a motor and gearing arrangement.

25) Pendant station

Also referred to as a "pushbutton station".  An electrical control device consisting of pushbutton-operated contacts in an enclosure used by the operator for control of the powered motions of the crane, hoist and other auxiliary equipment.

26) Mechanical lifter

A lifter composed of two or more rigid parts that move with respect to each other to attach the load to the hoisting device. All movements of this grab as it attaches to the load are manually actuated.

27) Sheet lifter

Usually a below-the-hook (hoist or balancer) material handling device that utilizes two "claws" that grab a piece or pieces of sheet metal or wood.  These claws are "squeezed" by means of a ratchet and turning wheel and wrap around the sides of the sheet.  A lip on the lower portion of the claws prevents the sheet from falling out of the lifter.  The sheet lifter is attached to the lifting device by means of a bail at the top of the device.

28) Wire rope hoist

A hoist that utilizes wire rope as the lifting medium. Often powered electrically or pneumatically. This lifting device is made up of a rope storage drum, motor(s), gear box and braking system and is suspended from a monorail or bridge beam(s) by means of a trolley.  May also be mounted in a staionary manner. Manual wire rope hoist are generally referred to as "pullers" and operate utilizing a ratchet and pawl tensioning technology.

29) Air hoist

A suspended machinery unit that is powered by pneumatically driven motors and is used to lift or lower a freely suspended (unguided) load.  Generally uses chain or wire rope as its lifting medium.

30) Air chain hoist

A pneumatically driven machinery unit, utilizing chain as its lifting medium, and used for the lifting and lowering of a freely suspended (unguided)load.  Often used in environments that require electric spark avoidance due to a potentially explosive atmosphere.