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Roundsling Information

Care and usage

Polyester has a low water absorption rate, making it flexible, light, and easy to handle even after prolonged soaking in water. While they show excellent resistance to most mildew and fungus, dirt that accumulates on slings may support their growth, and that's why regular cleaning is very important.

Inspect your roundsling before each use since tensile strength may decrease with each use. Roundslings should be stored in a cool, dry, and dark place.

  • Do not shorten or lengthen roundsling by twisting or knotting.
  • Roundslings should be hitched in a manner providing control of the load.
  • Use wear pads/sling protectors if roundsling will come in contact with sharp edges, corners, protrusions or abrasive surfaces.
  • Avoid shock loading.
  • When lifting in a basket hitch, the legs of the sling should contain or support the load from the sides, above the center of gravity, so that the load remains under control.

Environmental/Chemical Factors

  • Roundslings should be stored in an area where they will not be subjected to mechanical, chemical, or ultraviolet damage or extreme temperatures.
  • Roundslings should not be used where fumes, vapors, sprays, mists, or liquids of alkalis or acids are present.

Reduction Factors

  • When the choker hitch rating is not identified on the roundsling, the choker hitch rating will be 80% of the sling's straight-line hitch rating.
  • Rated loads for angles of choke less than 120 degrees shall be determined by using the values in the choke hitch diagram.
  • Multiple leg roundslings should be selected according to the sling's rated load based on the specific angle(s) as stated on the sling's identification.
  • Roundslings should not be used at an angle of loading less than 30 degrees.

 

 

 
     

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    Polyester roundslings are made from bundles of polyester yarns inside of a 2-ply polyester cover. Unlike a web sling, all of the load bearing part of a roundsling is invisible to your during normal wear. Because you can't see the load bearing part, you may have to judge the sling by its' cover.

     

    Inspection intervals

    Initial Inspection -  whenever the sling is initially received.

    Frequent Inspection - before each shift or day in normal service.

    Periodic Inspection - an inspection done by a qualified and designated person and other than the person who performs the frequent inspections. Periodic inspection intervals should not exceed one year.  Documentation that the most recent periodic inspection was performed shall be maintained.

    Removal Criteria*

    Following are some things to look for when inspection a roundsling for damage:

    • Abrasion happens when the sling comes in contact with load edges, causing wear on the web fibers.
    • Acid burns are visible due to a burning of the material.
    • Burns are visible due to the darkening of the area that came in contact to either heat or a chemical.
    • Cuts, Tears & Pulls are easy to spot and usually a result of abrasive surfaces, protrusions, or sharp corner edges.
    • Weld Splatter causes the material to burn in a splatter design.

     *Any damage through both plys of covers where the yarn is visible should be removed immediately.
     

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