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Mining Machine Noise Reduction

Mar 13 2018nbsp018332A dualsprocket urethanecoated continuous mining machine chain was developed and was found to reduce noise reaching the operator ear by 57 dBA It was commercialized by Joy Global in 2012 A retrofit package was developed that reduced haul truck operator noise exposures by as much as 9 dBA and LoadHaulDump operator noise exposures by as

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