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Warning & Technical
Inspection Criteria for Twintex® Roundslings

1. Initial Inspection

Before any new or repaired roundsling is placed in service, it shall be inspected by a designated person to ensure that the correct roundsling is being used, as well as to determine that the roundsling meets applicable specifications and has not been damaged in shipment.

2. Frequent Inspection
This inspection shall be made by the user handling the roundsling each time it is used.

  • Periodic Inspection

This inspection shall be conducted by designated personnel. Frequency of inspection should be based on:

  • Frequency of roundsling use
  • Severity of service conditions.
  • Experience gained on the service life of roundslings used in similar applications.
  • Periodic inspections should be conducted at least annually.


Remove from service when:

  • Cuts to sling cover expose red-striped white core yarns
  • Holes, tears, snags or abrasions expose red-striped white core yarns
  • End fittings are pitted or corroded, cracked, distorted or broken
  • The sling shows signs of melting, charring, or chemical damage
  • Capacity tag is illegible or missing
  • Knots in any part of the roundsling
  • Broken or worn stitching in the cover which exposes the core fibers
  • Other visible damage which causes doubt as to the strength of the sling. Note: Do not expose roundslings to temperatures exceeding 194°F

Do not exceed rated capacities. Ratings must be reduced when slings are used at angles of less than 90° from horizontal.
**The use of ANY roundsling with a nylon cover and polyester load-bearing core yarn makes the detection of chemical damage to the core yarn extremely difficult. Use of such roundslings in chemically active environments, ESPECIALLY THOSE WHICH INCLUDE STRONG ALKALIS, is not recommended. Alkalis can damage the polyester core yarn without damaging the nylon cover, making inspection for this type of damage almost impossible. In such chemically active environments, roundslings using covers made from the same fiber as the core yarn is recommended, because the environment will damage the cover either before or at the same time as the core yarn, making inspection and detection much more reliable. If in doubt, return the roundsling to SpanSet for inspection and proof testing.