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Safety Performance of PET Coated Wire Rope

2025.06.26

Author：PET coated wire rope

The safety performance of PET coated wire rope is one of its core advantages, especially in terms of corrosion protection, insulation isolation, fracture warning, lightweight design and environmental adaptability.

1. Corrosion protection: reduce the risk of fracture

Correlation between corrosion and fracture: The corrosion of steel wire rope will significantly reduce its tensile strength and fatigue life. Studies have shown that after one year of corrosion in a salt spray environment, the tensile strength of ordinary steel wire rope may decrease by 30%-50%, while the strength loss of PET coated wire rope can be controlled within 5%.

Coating integrity guarantee: PET coating prevents moisture, oxygen and chloride ion penetration through the dual effects of physical isolation and chemical stability.

2. Insulation performance: avoid electrical accidents

Insulation principle and data: The volume resistivity of PET material is ≥10cm, which is much higher than the safety standard (≥10cm), and can withstand 10kV voltage.

Compared with traditional steel wire rope: The resistivity of ordinary galvanized steel wire rope is only about 10cm, which is easy to conduct electricity in a humid environment and poses a safety hazard.

3. Breakage warning: active safety mechanism

Coating damage detection technology

Visual inspection: The color or gloss of the PET coating changes significantly after it is damaged, which is convenient for quick identification.

Electrical detection: Conductive fibers or smart sensors are embedded in the coating to monitor the integrity of the coating in real time.

Preventive maintenance: By regularly detecting the coating status, it can be replaced in time before the wire rope substrate corrodes to avoid sudden breakage. In the scenario of using PET coated wire rope, the accident rate caused by breakage can be reduced by more than 90%.

4. Lightweight design: Reduce operating risks

Reduced labor intensity: Under the same diameter, the weight of PET coated wire rope is 10%-15% lighter than that of galvanized wire rope, reducing the manual handling burden of operators.

Reduced equipment load: Lightweight design can reduce energy consumption and wear of equipment such as cranes and winches, and extend equipment life.

5. Anti-fatigue and impact resistance

Improved fatigue life: PET coating can reduce the friction between wire rope and pulley and drum, reduce stress concentration, and extend fatigue life. The fatigue life of PET coated wire rope is 2.5 times that of ordinary wire rope.

Impact resistance: PET coating has a certain elasticity, which can absorb part of the impact energy and reduce the instantaneous stress of the wire rope.

6. Environmental adaptability: Avoid environmentally induced accidents

Temperature resistance: The applicable temperature of conventional PET coating is -40℃ to 80℃, which can be extended to -60℃ to 120℃ after modification, avoiding embrittlement or softening of the coating due to temperature changes.

Chemical corrosion resistance: It has good tolerance to chemical substances such as acids, alkalis, and salts, avoiding strength loss due to chemical corrosion.

PET coated wire rope has multiple safety performances such as corrosion resistance, insulation, fracture warning, lightweight and environmental adaptability, which significantly reduces the risk of accidents in industrial, construction, fishery and other scenes. The improvement of its safety performance not only depends on the characteristics of the material itself, but also forms a complete safety guarantee system through testing technology, standard certification and preventive maintenance. For scenes with high risks, high corrosion or extremely high safety requirements, PET coated wire rope is a more reliable choice.

Qingdao Chenan Machinery Co., Ltd. has the advantage of developing and producing rubber winding equipment, with higher technology than various equipment assembly manufacturers in the industry. For more information about PET coated wire rope, please contact us.

Company: Qingdao Chenan Machinery Co., Ltd.

Address: Yanjialing Industrial Park, East Chengma Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province

Email: qdcajx@gmail.com