Glossary


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46) Slider belt conveyor

A simple and inexpensive form of powered conveyor. A single section will have a large roller at both ends, one of which is powered by a pulley type belt connected to a motor. The belt is literally slide over a flat surface therein conveying the load on a horizontal plane or carrying loads up an incline.

47) Tower crane

A crane designed to handle very large, heavy loads used at construction sites and for the loading and unloading of sea going containers.

48) Static storage system

A storage system where there is no mechanical movement of either the storage locations or the loads within the systems once they are deposited.

49) Tugger

Also known as "tractors". Used solely to pull a string of unit load trailers and have no lifting capability. These can be operator driven or automatic/guided path. See also Tugger AGV .

50) Straddle truck

An industrial lift truck that is utilized in aisles as narrow as 6 feet and has had the counterbalancing addressed by front end outriggers. These outriggers also serve to prevent the natural forward tipping motion that would be created as a load is lifted

51) Storage Equipment Manufacturers Association

The Storage Equipment Manufacturers Association (SMA) was formed in 1974 by visionary industry leaders as a Product Section of the Material Handling Industry of America, a non-profit Trade Association. SMA's mission includes development and advancement of standards and activities to advance the quality, safety and general fitness for intended use of industrial/storage equipment. SMA member companies are concerned, conscientious manufacturers affiliated in an industry association to provide voluntary standards for the design of steel industrial/storage equipment, and to formulate guidelines for the proper use, operation and maintenance of these products. Principal among these products are steel shelving, industrial mezzanines, work and assembly stations, modular drawer equipment, clothing storage lockers, movable base storage equipment, storage containers and directly related equipment. For contact information, please see SMA .

52) Tray

Plastic or metal container utilized to house or carry small parts and items.  Often use in conjunction with carts or shelving for this movement or storage.  See also Cart .

53) Stacking frames

Portable storage aids for attachment to pallets to enable stacking of unstable items two three or more units high.

54) Storage racks

A single or multi-level structural storage system that is utilized to support high stacking of single items or palletized loads.

55) Structural rack

Steel storage rack made from hot rolled steel shapes, generally conforming to the requirements of AISC, such as angle, beams or tubing.

56) Selective rack

Steel storage racks arranged in either single or back-to-back (double) rows.  Each of the rows offers a bay or number of bays in the down aisle direction.  Pallets are generally positioned side-by-side in the down-aisle direction at each level of the bay.  The advantage to this configuration of rack is that all pallets are accessible from the facing aisle.

57) Strap hoist

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.

58) Single leg gantry crane

A gantry crane designed to have one "leg" of the crane supporting an end of the bridge and the other end of the bridge is supported by an end truck running on an elevated rail or runway.  Often referred to as a semigantry crane.

59) Truss girder crane

An overhead traveling crane designed with structurally reinforced bridge girders to allow greater span and loading capabilities.  The reinforcement consists of utilization of trusses extended vertically and horizontally from the load bearing beam(s) of the crane bridge.

60) Semigantry crane

A gantry crane designed to have one "leg" of the crane supporting an end of the bridge and the other end of the bridge is supported by an end truck running on an elevated rail or runway.  Often referred to as a semigantry crane.