Polyester or Nylon Slings for Lifting?

Not all lifting slings are the same, despite the fact that most seek to accomplish the same job. One of the most significant differences between slings is the two materials used: nylon and polyester. For both materials, there are further options for grades, qualities, and design of materials. Each type of lifting sling has its pros and cons, so it is essential for users to pick the best options for their particular application.

Within the last few years, there has been a move to polyester lifting slings, but this is mainly done to the lower cost of the material than nylon. Price should not be the only factor when deciding on what stuff would be best for you and your business.

Here are some factors about both materials that can help you make a more informed decision:

Nylon slings:

  1. Nylon has a 7-10% WLL rated stretch capacity. The amount of stretch can lessen shock loading.
  2. The material is not chemical resistant. Nylon is not meant to be used around bleaches or acids.

Polyester slings:

  1. Polyester has a 2-3% WLL rated stretch capacity.
  2. Polyester should not be used in environments where aldehydes are present.
  3. All polyester slings will have a tracer thread to identify the material. The traces will be threaded into the center of the sling.

For more information about getting the right rigging supplies or nylon slings, please give us a call. We can also help you with your crane wire rope needs.