About some problems of lifting sling
According to international standards, color lifting slings are distinguished by color. Purple represents one ton, green represents two tons, yellow represents three tons, gray represents four tons, red represents five tons, and orange represents ten tons. The general safety factor is 1:6:7.
Of course, there are also white pickling slings. Those with no color difference in tonnage are all white. The quality of this white sling is much inferior to that of its color. Therefore, it is still colored when choosing a lifting sling. Better.
The synthetic fiber sling has the advantages of light carrying, convenient protection and good chemical resistance, as well as light weight, high strength, and excellent characteristics such as not easy to damage the appearance of the lifting object. In many aspects, it has gradually replaced the wire rope sling.
Synthetic fiber lifting belts are divided into two categories: flat lifting belts and round lifting belts.
The flat sling is mainly made of nylon fiber (polyamide synthetic fiber), polyester fiber (polyester synthetic fiber) and polypropylene fiber (polypropylene synthetic fiber). They have their own characteristics and are suitable for different environmental occasions, but the lifting belts of different materials can never be mixed.
The raw material of the round sling is mainly polyester synthetic fiber (polyester), the outer layer uses a polyester round sleeve as a protective layer, and the inner core uses a continuous 100% polyester core yarn as a lifting load. The synthetic fiber sling is a soft sling with excellent performance. It is made of excellent high-strength and low-elongation polyester filament. It is a replacement product of steel wire.
