I am trying to reduce the noise level in the room where this grinder is. The grinder receives excess plastic from our process through a top opening where the plastic drops in and side via a conveyor. There is a vacuum tube attached to the bottom to suck the ground plastic up and out of the room. The noise level is irregular. Think of a crunching plus gear grinding sound. My idea was to build a partial enclosure with Lexan and pad the inner walls with sound absorbing material. Any ideas?
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