Case Study: CasterShoX® Helps Auto Manufacturer Meet OSHA Requirements
We Build Trust
A large foreign auto manufacturer uses dollies to transport parts in one of their assembly plants. The dollies are then pulled by a tugger in a five-dolly train. The problem was that the carts were creating 95db(A) of noise, 10db(A) greater than OSHA recommendations of 85db(A) for 8 hours of continuous exposure. OSHA regulation 1910.95 “Occupational Noise Exposure” limits operator exposure to 4 hours at 95db(A).
The auto manufacturer first tried traditional metal coil spring loaded casters as suggested by a different caster supplier. Though this brought the cart noise down to 86.7db(A), it did not achieve the goal established by the OSHA guidelines.
While searching for a quieter solution, the manufacturer found Caster Concepts CasterShoX® product and decided to see if it would meet the goals of reducing cart noise.
In the end, two solutions were proposed and the results were stunning. The combination of changing to CasterShoX® and redesigning the tow hitch bar reduced noise levels to 67db(A), well below OSHA requirements. This solution was a 31% reduction from the initial situation and 23% better than a competitor’s product. The engineer in charge of this project for the manufacturer attributes most of the noise reduction due to CasterShoX® ability to stop vibration almost instantly.