Arbil Glossary

 
 

Glossary

 

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S

S.W.L (Safe Working Load)

The maximum load an item of lifting equipment may raise, lower or suspend under the particular service conditions

Safe Working Load (S.W.L)

The maximum load an item of lifting equipment may raise, lower or suspend under the particular service conditions

Safety Factor

The ratio between the Minimum Breaking Load and the Working Load Limit

SECUTEX (ANTI CUT SLEEVE)

Manufactured from heavy duty polyurethane and ideal for sharp corners such as steel plates, the Secutex sleeve can either be bonded directly onto flat belt webbing slings or produced as a separate item that can be fitted retrospectively to either a Websling or Roundsling

SHERAPLEX ®

Sheraplex is a duplex coating combining Sherardizing and organic topcoats for optimum corrosion resistance, mechanical properties and appearance.

 

SHERARDIZING ®

The Sherardizing process is a method of applying a zinc coating to the surface of ferrous components. The process has been developed into a reliable and accurate coating which, when correctly specified and applied, gives a tough resilient defence against corrosion of the base material. Sherardizing is a diffusion process carried out by heating suitable pre-cleaned ferrous components in zinc powder. The process forms a zinc iron alloy with the surface of the components being treated. The resultant coating has a matt grey appearance, uniform in its thickness and has an iron content of 8-10%

SHIMS - (FITTING BRITISH STANDARD EYEBOLTS CORRECTLY)

The plane of the eye of each of a pair of collar eyebolts should ideally be within ±5º of the plane containing the axes of the two eyebolts. This may be achieved by the insertion of shims, which should not exceed in thickness half the pitch of the relevant screw thread, or by machining the contacting surface, but not the underside of the eyebolt collar. Under no circumstances should the eyebolt be over-tightened in an attempt to achieve correct alignment. Care should also be taken to avoid an alignment whereby the application of the angular load tends to unscrew the eyebolt from its seating.

SHORT LINK CHAIN

Standard short link chain for lifting purposes nominally has a pitch (inside length) equivalent to 3 times its diameter and an inside width equivalent to 1.5 times its diameter

SHORTENING CLUTCH

Used specifically on short link lifting chain, shortening clutches are a safe and effective means of adjusting the lengths of sling legs

SOLID THIMBLE (BS Standard)

Similar in shape to an Ordinary Heart Shaped Thimble, the Solid Thimble is cast from malleable iron and can be drilled to suit either shackle or wire rope socket pins.

 

SPREADER BEAM

Spreader Beams are ideal where there are no headroom issues and are significantly less expensive to manufacture than Lifting Beams. They are always suspended by 2 leg lifting slings with the lower lifting points being positioned directly below the suspension points. Unlike a lifting beam, the spreader beam is actually in compression where the line of action of the top sling and the load suspension point coincide at the neutral axis.

SPREADER FRAME

Spreader Frames are always suspended by 3 or 4 leg lifting slings with the lower lifting points being positioned directly below the suspension points. Unlike a lifting frame, the spreader frame is actually in compression where the line of action of the top sling and the load suspension point coincide at the neutral axis.

STRAIGHT LIFT

Most commonly associated with slinging, the straight lift is as it suggests where the sling is used in a straight forward vertical format where no angles or choke hitching is present.



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