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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.
A lever operated manual device, utilizing polyester or nylon straps as the lifting medium, used to lift, lower, or pull a load and to apply or release tension.
An electrical conductor system employing flexible cables which are festooned along the bridge or runway. The cable is attached to trolleys or hooks which operate on a rigid bar or tight wire along the entire bridge width or runway length. This arrangement serves to keep the cables "out of the way" of the crane and hoist movement.
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.
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.
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.
An overhead traveling crane that utilizes a single bridge beam attached to the two runway/end trucks. This bridge beam or single girder supports a lifting mechanism or hoist that "runs" on the bottom flange of the bridge beam.
A hoist suspended from a trolley. A hoist can be connected to a trolley by hook or clevis, or a hoist can be integral with the trolley.