Bosch Rexroth has used Soundguard soundproofing to drop noise levels from each of two ladle turners built at their Kings Park Hydraulics and Automation division west of Sydney for a copper smelter in Peru.
By lining the sheet metal housing with Soundbarrier 32AL, Bosch got a decibal level of 78.5 dB
Soundbarrier is a range of Soundguard composites comprising two foam layers and one barrier layer. The inner foam layer isolates or “decouples” the barrier layer from the structure. The outer foam layer absorbs airborne sound waves. And the high mass of the flexible barrier exhausts the energy of the vibrations.
The composite finds extensive use for enclosing compressors, generators, mobile machinery and engine bays.