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CASE STUDY

MACHINE ATTENUATION LIEBHERR R9800

Liebherr R9800 is one of the largest OEM mining excavators in the world! At 800 tonnes it is designed for large-capacity mining operations and can work on almost any surface. Developed as the optimal loading tool for large-scale mining operations, the R9800 is able to achieve the most challenging targets. One of the challenges of using this mining machinery is sound output with an operating noise level of 126 dBA.

Mining operations could not continue to operate the Liebherr R9800 during noise-sensitive times and areas due to excessive machine noise output. Community expectations and noise compliance conditions have strict requirements set by governing bodies, with huge fines and implications if not adhered to.

LIEBHERR R9800

MACHINE SOUND REDUCTION CHALLENGE – LIEBHERR R9800

MINETEK were commissioned to design and manufacture the first sound attenuation package in the world for the mining excavator Liebherr R9800. The goal of this project was to reduce its operating noise down to the site noise level without compromising its operating capacity or adding excess weight to the machine. 

SOUND ATTENUATION SOLUTION & RESULTS

With the Sound Attenuation Package installed, Liebherr All references to R9800 operates at an amazingly low noise output. MINETEK projects set an industry benchmark and noise suppression at the source is now best practice. 

Overall Sound Power Target Level for Client: 118 dBA  
Machine Noise Level Pre Attenuation: 126 dBA  
Machine Noise Level Post Attenuation: 114 dBA Dynamic 

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