CHAIN SLINGS SYSTEMS

CHAIN SLINGS

Alloy Chain Sling are usually the best choice when working under rugged and hot weather conditions such as construction sites. They are durable, long lasting and easy to inspect. The main advantage with chain slings is that they can easily be reparied if any damaged component or link is found during inspection. We manufacture chain slings conforming to BS EN 818-4.

The distance between the crane hook and the load is known as the “Head Room”. If a specific head room is required, the “Reach” of the chain sling must increase as the angle between the legs increases as shown below.

The reach of a chain sling is the distance between bearing points of the upper and lower terminal fittings. This distance, commonly known as the “Bearing to Bearing” should be quoted when ordering slings. Shortening clutches may be fitted to a sling, making the reach adjustable, hence increasing the versatility of the sling.

Uniform load method of rating BS EN 818-4

All general purposes slings should be rated by the uniform load method as shown in the table below.

Grade 100 Chain Sling Components

**Safety factor 4:1 above limits are valid for standard use and equally loaded slings. Properly use and maintaince of your chain slings will give long life and enable you to carry out your lifting operations efficiently and safely. Warning: Never exceed a vertical sling angle of 60°

Grade 80 Chain Sling Components

Gr.100 Chain Program

Slingtek assembles Gr.100 chain slings which carry a superior advantage over the traditional Gr.80 chain slings. We carry in stock all Gr.100 components from Yoke, which are manufactured in accordance with various international standards such as ASTM, ASME, EN and DIN. Yoke is an ISO 9001 certified company having type approvals from major international authorities such as DNV, API , SABS etc…

Advantages of Gr.100 Chain Slings

  • Available in capacities up to 84 T
  • Blue Powder Coated to differentiate from standard Gr.80 in the market
  • 25% stronger than traditional Gr.80 Chain slings
  • Gr.100 is more competitive than Gr.80 on similar working load limit (WLL)
  • All YOKE components are clearly marked with traceability code, CE mark and H91 stamp

Limitation On Use

Slingtek alloy chain or chain slings should not be used in acid or caustic solutions nor in heavily acidic or caustic laden atmospheres. The high tensile strength of the heat treated alloy material in alloy steel chains and components is susceptible to hydrogen embrittlement when exposed to acids.

Slingtek slings must not be heat-treated, galvanized, plated, coated or subject to any process involving heating or pickling. Each of these processes can have dangerous effects and will invalidate the manufacturer certificate.

Slingtek slings may be used at temperatures between -40°C to 200°C with no reduction in the working load limit . The use of Slingtek chain slings within the permissible temperature range in the table below does not require any permanent reduction in working load limit when the chain sling is returned to normal temperatures. A sling accidentally exposed to temperatures in excess of the maximum permissible should be withdrawn form service immediately and returned to the distributor for thorough examination

When using Slingtek slings in exceptionally hazardous conditions, the degree of hazard should be assessed by a competent person and the Working Load Limit adjusted accordingly. Examples are lifting of potentially dangerous loads such as molten metals, corrosive materials or fissile material and including certain offshore activities.