At present, both flat and flexible lifting belts are made of polyester material, which has a very high usage rate. Often, it is not easy to distinguish various synthetic fiber lifting belts based solely on their appearance. However, the advantages of polyester lifting belts are particularly evident among all materials of lifting belts. Below, we will introduce them to you.
Firstly, the fiber strength of polyester lifting straps. Polyester has very high strength, with short fibers having a strength of 2.6-5.7 cN/dtex and high-strength fibers having a strength of 5.6-8.0 cN/dtex. Therefore, the impact strength of polyester fiber is much higher than that of ordinary fibers, so its strong and durable characteristics are very prominent.
Next is the heat resistance of polyester lifting belts. Polyester is made by melt spinning and belongs to thermoplastic fibers. Its melting point is higher than that of ordinary fibers, so its heat resistance is also stronger than that of ordinary fibers. Therefore, polyester is a fiber with good heat resistance, which makes it suitable for use in high temperature environments.
Finally, there is the elastic recovery ability of polyester lifting belts. Many lifting belts have undergone changes in their basic structure after a long period of high load, some have become longer, and some have folded and twisted, making it difficult to recover. On the other hand, polyester lifting belts do not have this situation and can immediately return to their initial state after the external force is released.