The outer shape of sound proof enclosure is built by stainless steel or mild steel with powder coating process. Inside will be one layer of insulation foam which absorbs the sound made by bowl feeder. The sizing of the sound proof enclosure is depend on the vibrator bowl feeder sizing.The main purpose of this sound proof enclosure is to prevent the sound to expose to environment and also ensure the environment dust wont stick inside the feeder bowl (mainly in medical and food industry).