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Chain Slings

Canada's Chain Sling Safety Experts

Hercules SLR Chain Slings

Chain slings are strong enough to lift the heaviest loads and durable enough to do it over-and-over again. Chain slings can withstand impact, extreme temperature, and exposure to chemicals. They’re utterly customizable and repairable, and are found across Canada in foundries, heavy machine shops, steel mills, and any other environment where other lifting slings just won’t cut it.

Chain slings typically consist of a master link, one or more lengths of chain called “legs,” and rigging hooks or other hardware designed to hold the load. Chain slings can be configured with vertical, choker, or basket hitches and a wide variety of specialized hooks, lengths of chain, and master links.

For safe chain sling usage, remove all twists from the chain legs before lifting. Never knot a chain and never exceed the rated capacity. Always inspect that chain is free from damage or wear before use and ensure that the master link articulates freely on the crane or other lifting appliance.

product image for products lifting slings chain slings
  • 1. Determine the maximum load to be lifted.
    2. Choose the proper type of chain sling (single, double, etc.), as dictated by the size, shape and weight of the load.
    3. Estimate the approximate angle between a leg of the sling and the load during operation.
    4. Select the proper attachment (hooks and master links) for your sling.
    5. Determine the overall reach from bearing point on the master link to bearing point on attachment.
    6. Refer to the Working Load Limit Chart and to your pre-determined angle of the type sling you have selected.
    7. When placing your order be sure to give complete information as to size, reach and attachments required.

  • Note: Angle to the load on multiple leg slings will be 60° or greater as long as the distance between lifting eyes of
    the lifting load is not greater than reach shown on identification tag.
  • • User should remove all twists from a chain leg before lifting and should never knot a chain.
    Never load in excess of the rated capacity for the application.
    • Always inspect that chain is free from damage or wear before use.
    • Always use shortening hook or clutch to shorten chain slings
    • Ensure that the master link articulates freely on the hook of the crane or other lifting appliance.
    • Persons must stand clear of all loads while lifting or while suspended.
    Never tip load hooks. The load should always be supported correctly in the bowl of the hook.
    Inspect all sling components prior to each use.
    • Ensure that chain is protected from any sharp corners on the load.
    • Always use the correct size sling for the load, allowing for the angle and possibility of unequal loading.
    • Persons shall never ride the chain sling/rope sling or web sling or the load during lifting or while suspended.
    Keep a record of all slings in use.
    • During lifting, with or without the load, personnel must be alert for possible snagging of the load or the chain sling.
    • Personnel must keep all body parts from between the sling and the load.
  • Slings are designated throughout the industry by these symbols:
  •  

FIRST SYMBOL (Basic Type)

S Single chain sling with master link and hook or hook each end.
C Single choker chain with master link each end, no hooks.
D Double chain sling with standard master links and hooks.
T Triple chain sling with standard master link and hooks.
Q Quadruple chain sling with standard master link and hooks.


SECOND SYMBOL (Type of master link or end)

O Standard oblong master link recommended for all.
P Pear shaped master link – available on request.
R Round link – not recommended.
S Sling hook


THIRD SYMBOL 

S Sling hook
G Grab hook
F Foundry hook
A Adjustable

  • • 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.

  • • 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.

  • • Slings may be used at temperatures between -40°C to 200°C with no reduction in the working load limit. The use of 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 from service immediately and returned to the distributor for thorough examination.

  • • When using slings in exceptionally hazardous conditions, the degree of hazard should be assessed by a competent person and the Working Load Limit adjusted accordingly.

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