What type of yarn do you need for your round sling?

There are two main types of yarn to choose from when producing a round sling – high performance round sling yarns, such as HMPE and Aramid and commodity round sling yarns, such as Polyester. The type you choose will depend on several factors. These include the intended use of the sling, load capacity requirements, and the desired level of durability and strength.

Below you will find some examples of the types of yarns that are commonly used for different types of round slings:


Polyester is a synthetic fiber that is commonly used in the production of round slings. The benefits are clear. It is strong, lightweight, and has good fiber fatigue properties, making it an ideal choice for ever day lifting applications. Polyester round slings are not affected by moisture and do not suffer wet strength loss like Nylon webbing or corrode like steel wire rope.

High Modulus Polyethylene (HMPE)

High Modulus Polyethylene or HMPE yarns such as Dyneema, Spectra and, Titan, are long chain Polymers that have very high linear density. HMPE is often used in the production of round slings for high-capacity lifting applications. An HMPE round sling has a very high strength-to-weight ratio, excellent fiber fatigue properties, and low elongation.


Vectran is a high-performance yarn used in the production of round slings. It is spun from liquid crystal polymer (LCP). The fiber is five times stronger than steel and has high heat resistance, good chemical stability, high stiffness values, and great linear strength. It can be blended with other high-performance fibers to mitigate certain properties and enhance performance in certain applications.


Aramid is an abbreviation of aromatic polyamide. Aramids are another type of high-performance yarn that are popular for their broad range of potential applications. They have a high strength-to-weight ratio and dimensional stability. Furthermore, aramids are effective over an extremely wide temperature range, have low flammability and very good fiber fatigue properties. Aramids are also blended with other high performance yarns to enhance product performance in certain applications.

Overall, the type of yarn used in the production of a round sling will depend on the specific lifting application and strength requirements. It’s vital to consult with a reputable round sling manufacturer or yarn supplier to determine the most appropriate yarn for your specific lifting application.

Want more information?

More about round sling yarns

I want more information