[Case Study] Solving deterioration due to hydrolysis with material change! Extending the lifespan of wheels.
[Case Study] Solving degradation due to hydrolysis by switching to ether-based polyurethane! Extending the lifespan of crane wheels.
This is a case of urethane rewrapping for wheels used on ceiling cranes in a factory. Previously, ester-based urethane was used, but due to prolonged use, hydrolysis progressed, causing the urethane to deteriorate to the point of crumbling. Therefore, the material was changed to ether-based urethane suitable for the operating environment, and rewrapping was carried out. By enhancing resistance to hydrolysis, the deterioration of urethane was suppressed, achieving a longer lifespan for the crane wheels.
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basic information
Purpose: Wheels for overhead cranes Conventional Material: Ester-based polyurethane Changed Material: Ether-based polyurethane Processing Method: Polyurethane re-coating on existing wheels Main Improvement: Suppression of polyurethane degradation due to hydrolysis
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Applications/Examples of results
Wheels for running overhead cranes in factories In environments affected by humidity and moisture, the selection of urethane material can significantly influence lifespan. In this case, we resolved the issue of deterioration due to hydrolysis by switching from conventional ester-based urethane to ether-based urethane. If you are experiencing issues with cracking, surface degradation, or peeling of urethane wheels and rollers, we can suggest material changes based on the usage environment and deterioration conditions.
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Company information
Since our establishment in 1973, we have specialized in industrial urethane rubber, consistently producing everything from manufacturing to processing. Thanks to the tremendous support and guidance from all of you, we have developed into a company that now produces over 300 tons of urethane rubber products annually. We are committed to continuously working on the development of urethane rubber products and aim to be a leading company that can respond to the needs of the times.
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