The Giant in Lifting Slings--UHMWPE Lifting Sling

The UHMWPE lifting sling is short for Ultra-High Molecular Weight Polyethylene Lifting Sling, which is made of  ultra-high molecular weight polyethylene. It is a cutting-edge and high-performance synthetic fiber lifting sling, is of round shape and endless type, ideal for lifting ultra-heavy loads. Therefore, it is also known as UHMWPE round sling, or endless UHMWPE lifting sling.

They have the following characteristics:

Exceptional Strength: UHMWPE is a type of ultra-high molecular weight polyethylene with outstanding strength, about 3-4 times stronger than polyester. This enables the lifting sling to bear significant loads.

Lightweight: With a density of approximately 0.97 grams/cubic centimeter (lighter than water), UHMWPE lifting slings remain relatively lightweight despite their high strength. They are a quarter of the weight of regular lifting slings, with half the diameter, making them convenient for carrying, using, and storing.

Low Friction Coefficient: UHMWPE lifting slings with a low friction coefficient reduce friction with cargo or other surfaces, minimizing wear.

Abrasion Resistance: UHMWPE material possesses good abrasion resistance, providing resistance against friction and wear during lifting and transportation.

Chemical Corrosion Resistance: UHMWPE lifting slings exhibit excellent stability against various chemicals, allowing for safe use in corrosive environments.

Low-Temperature Performance: With good low-temperature performance, UHMWPE maintains strength and flexibility in cold environments.

High Energy Absorption: UHMWPE lifting slings effectively absorb impact and energy during lifting operations, enhancing safety.

Non-Conductive: Being non-conductive, UHMWPE lifting sling is suitable for environments sensitive to static electricity.

Not Prone to Aging in Outdoor Use: Resistant to ultraviolet radiation, neutron, and gamma rays; higher energy absorption, low dielectric constant, and high electromagnetic wave transmission rate.

Operating Temperature Range: Between -150°C to 80°C.

Common Load Capacities: From 100 tons to 1000 tons.

Physical Properties of Ultra-High Molecular Weight Polyethylene Fiber:

Strength: 28-40 g/d

Modulus: 1000-1500 g/d

Density:  0.97 g/cm³

Breaking Elongation: <3%

Total Fineness: 800-2400D

Single Yarn Fineness: 3.5-4.0D

Moisture Absorption: None

Boiling Water Shrinkage: <1%

Hydrolysis Resistance: None

Acid Resistance: Excellent

Alkali Resistance: Excellent

Chemical Resistance: Excellent

UV Resistance: Excellent

Melting Point: 144-155°C

Thermal Conductivity (along fiber axis): 20 W/(m·K)

Coefficient of Thermal Expansion (heat dissipation coefficient): -12×10⁻⁶/K

Resistance: >10¹⁴Ω

Dielectric Strength: 900 KV/CM

Dielectric Constant (22°C, 10GHz): 2.25

Loss Factor: 2×10⁻⁴

Creep (22°C, 20% load): 1×10⁻²% per day

Of course, due to these excellent characteristics, the price is relatively high. For an equivalent load capacity, it is 3-4 times that of polyester lifting straps.

UHMWPE lifting slings produced by DMSLING find extensive applications in the installation and construction of wind power plants, railway rescue operations, aerospace project lifts, and other fields.