The lifting belt is mainly used for lifting heavy objects, therefore, its material quality is related to the safety of the heavy objects and operators. Therefore, it must be strictly produced in accordance with industrial silk weaving production standards.
Industrial silk can be divided into high-strength low elongation type (ordinary standard type), high modulus low shrinkage type, high-strength low shrinkage type, active type, high-strength low elongation type (ordinary standard type), etc. According to its performance, the chemical fiber silk used for weaving lifting belts is mostly made of high-strength low elongation chemical fiber silk, such as polyester or polypropylene fiber, Among them, polyester fiber has high strength and tensile strength, as well as low elongation, making it more suitable for large tonnage lifting belts, with better quality and safer lifting. Although the quality of polypropylene fiber material lifting belts is good, their load-bearing capacity is small and their prices are relatively cheap, making them suitable for lifting heavy objects up to 10 tons.
In addition, the storage temperature of the lifting belt should not be lower than -40 ℃ or higher than 80 ℃, otherwise the structure of the petroleum refining chemical industry silk will undergo physical changes, affecting the carrying capacity of the lifting belt.