Henan Aifite Intelligent Equipment Co., LTD.
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Rubber-coated Wheels for Bridge Crane Trolleys
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Product Introduction
The new generation of rubber-coated wheels for bridge crane trolleys utilize a polyurethane composite structure and precision manufacturing technology to create a core transmission solution for heavy-load scenarios such as metallurgy, machinery, and ports, featuring "no slipping under heavy loads, quiet operation, low maintenance, wear resistance, and long life."

Material Technology: Hard-core Fusion of Polyurethane and Metal
Heavy-duty, compression-resistant, and deformation-free: The polyurethane layer, with a Shore A hardness of 96 A, can withstand static loads of 50 tons and maintains a compression set of ≤3% under dynamic conditions, ensuring no wheel collapse during a fully loaded emergency stop.
Greatly improved wear life: The surface undergoes a special wear-resistant modification, resulting in a wear resistance 6-8 times greater than that of ordinary rubber wheels. In a metallurgical workshop operating at a high frequency of 16 hours per day, the wheel can achieve a service life of 12-15 years, reducing downtime and replacement requirements.
Anti-slip Braking: The polyurethane surface features a diamond-shaped anti-slip pattern, increasing the friction coefficient to 0.55-0.7. Combined with the wheel flange guide groove, braking distance is reduced by 40% when the rails are wet or oily, eliminating the risk of heavy-load slippage.
Zero-Damage Track Protection: The elastic polyurethane layer absorbs over 90% of impact energy, reducing rail wear by 90% compared to steel wheels. This extends the track maintenance cycle from two years to over eight years, significantly reducing infrastructure costs.
Low-Noise Operation Innovation: Through a combination of elastic cushioning and precise dynamic balancing, operating noise is kept below 70 dB, 25 dB lower than traditional steel wheels, significantly improving the workshop working environment.
Full-environmental durability: Stable performance across a temperature range of -40°C to +100°C. Passing salt spray testing (480 hours of corrosion-free testing), the wheel can withstand harsh environments such as high humidity in ports and corrosive gases in chemical plants.
Industry Proven Results: Full-Scenario Verification from the Workshop to the Port:
Metallurgical High-Temperature Workshop: In the steel mill's 300°C billet lifting scenario, high-temperature rubber-coated wheels continuously operated without softening or deformation, reducing the failure rate by 95% compared to traditional wheels.
Heavy Machinery Plant: Customized ultra-large diameter (500 mm) rubber-coated wheels for 120-ton bridge cranes achieve ±1 mm positioning accuracy, meeting the precise alignment requirements of heavy machine tool assembly.
Port and Container Terminal: Salt-spray-resistant rubber-coated wheels have operated in high-humidity environments for five years without corrosion, reducing maintenance costs by 60% compared to imported wheels.
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