Basic knowledge of sling

Basic knowledge of sling

Slings are generally used in flammable and explosive environments and do not generate sparks themselves. Since the world's first synthetic fiber flat hoisting belt was successfully used in the field of industrial hoisting in the United States in 1955, it has been widely used in ships, metallurgy, ports, electric power, electronics, transportation, military and other fields.

The lifting belt has the advantages of light weight, convenient maintenance, good chemical resistance, light weight, high strength, and is not easy to damage the surface of the lifting object. It is more and more favored by users and gradually replaces steel wire ropes in many aspects. Tool.

The main features of the sling are: the sling is light and soft: the weight is 25% of the same metal sling, the sling is very easy to operate, carry and store. It does not damage the surface of the sling (including the paint layer), and the sling does not cause any reverse damage to the human body.

Classification of slings

Sling: including Round lifting sling and flat sling, synthetic fiber sling.

The closed load-bearing core is composed of endlessly arranged tows that are equally arranged, and single-strand wires are used for twisting. Round lifting slings are round and ringless.

The outer layer of the round lifting sling is a special double-layer wear-resistant sleeve butt-jointed into a ring shape. The outer sleeve is not load-bearing and only protects the parallel tows. When severe overload or long-term use causes local damage to the load-bearing core, the jacket will first break to warn to avoid accidents.

If there is a large cut on the Round lifting sling it must be checked to see if it can be repaired or continued use. In any case, if the user is unsure of the extent of damage, it is best to send the Round lifting sling back to the manufacturer for further inspection.

Round lifting sling is safe and reliable: it has the characteristics of shock absorption, no corrosion, no aging, no conductivity, and no sparks in flammable and explosive environments. The elongation at rated load is 1.6%, and the tensile properties are close to those of steel wire rope. The use of the sling is clear at a glance, and the daily safety inspection is intuitive and simple. It can be considered that the sling that looks good is in good condition.

Synthetic Fiber Sling

The soft sling with excellent performance is made of high-quality high-strength and low-elongation polyester filament, which is a replacement product of steel wire. It has been widely used in industrialized countries in the world for more than 50 years. Its superior performance is favored by the majority of users. Its main features are:

Lightweight and soft: 25% of the weight of an equivalent metal sling, this sling is very easy to handle, carry and store. It does not damage the surface of the hanger (including the paint layer), and does not cause any negative damage to the human body.

Safe and reliable: It has the characteristics of shock absorption, corrosion resistance, aging resistance, non-conductivity, and no sparks in flammable and explosive environments during use. The elongation at rated load is 1.6%, and the tensile properties are close to those of steel wire rope. The use of the sling is clear at a glance, and the daily safety inspection is intuitive and simple. It can be considered that the sling that looks good is in good condition. The synthetic fiber sling is soft and easy to handle. Corrosion-resistant and non-conductive.

Flat sling

It is divided into EB flat sling and EB-B flat sling. The structure of the sling is synthetic fiber sling is a soft sling with excellent performance.

Industrial strength yarns are woven into dyed industrial webbing with widths of 15mm, 30mm, 50mm, 60mm, 75mm, 90mm, 180mm, 240mm, 300mm, with lug widths of 30mm, 50mm, 60mm, 70mm, 80mm, 100mm. Industrial webbing is industrially sewn into flat slings.

The flat eye sling has a loop on each side with an anti-abrasion jacket sewn to the loop. Several layers of webbing are sewn together in the middle part of the flat eye sling. The flat loop sling is just a ring. It has been widely used in industrialized countries in the world for more than 50 years. The superior performance of the lifting belt is favored by the majority of users.