A large foreign auto manufacturer uses dollies to transport parts in one of its assembly plants. Pulled by a tugger in a five-dolly train, these carts created noise levels of 95db, 10db greater than OSHA’s recommended limit of 85db for continuous exposure over an 8-hour shift. With the noise at 95db, OSHA regulations limit operator exposure to 4 hours, which posed a significant challenge to the plant’s operational efficiency.
Initially, the auto manufacturer attempted to mitigate the noise problem by switching to traditional metal coil spring-loaded casters, which a different caster supplier recommended. Although this change successfully reduced the noise levels to 86.7db(A), it did not meet the target set by OSHA’s guidelines. As a result, the manufacturer sought further solutions to bring the noise levels down to a compliant level while maintaining productivity.
CasterShox reduces noise, shock, and vibration.
While searching for a quieter solution, the manufacturer discovered Caster Concepts’ CasterShoX® product and tested its effectiveness in reducing cart noise. CasterShox® offers up to 90% noise reduction, significantly decreasing noise pollution by up to 15 decibels. The patented CasterShoX absorption system helps manufacturers meet OSHA noise regulations.
In the end, two solutions were proposed, and the results were remarkable. Combining CasterShoX® with a redesigned tow hitch bar reduced noise levels to 67db(A), significantly below OSHA’s 85db threshold. This represented a 31% reduction in noise from the original level of 95db and was 23% better than a competitor’s previously tested product.
The engineer leading the project attributed the dramatic noise reduction primarily to CasterShoX®’s ability to stop vibrations almost instantly, which played a crucial role in lowering the overall noise generated by the cart system. This solution met and exceeded OSHA requirements, improving the plant’s working environment and operational efficiency.
For more information on CasterShoX, contact Caster Concepts.
For immediate assistance, call 888.764.1698.
