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12 June, 2011

Noise Enclosures for Vibratory Bowl Feeders

Vibratory bowl feeders make noise and especially if the vibratory bowl feeder is a large one. Further if the parts being conveyed are metallic, the noise level further increases. To some extent this noise level can be reduced by coating the bowl with polyurethane coating like Elscinthane PU coating. However, this does not eliminate the component to component contact which too increases the noise. To reduce this noise, the only way is to provide for a noise enclosure for the complete vibratory bowl feeder. These are usually available in three types –

  1. Square or rectangular mild steel cover with acoustic foam lined on the inside
  2. Round shaped mild steel cover with acoustic foam lined on the inside
  3. Acrylic enclosure fixed with aluminium extruded Sections

Depending upon the budget, type of component, model of the bowl feeder and the noise reduction requirement of the customer, the right type of noise enclosure can be chosen. A noise reduction of between 10 Db to 20 Db can be achieved with the help of noise enclosures. While using a noise enclosure, it should be seen whether the same is made easily removable. This is so because if any maintenance is required on the bowl feeder, valuable production time should not be lost while removing the cover. If proper toggle clamps are used, the noise enclosure can be removed very fast. Further, it is better to have the top cover of transparent acrylic of a high thickness to ensure that it does not only reduce the noise but helps the operator to check whether the number of pieces in the bowl have reduced / or require replenishment.

Usually a level controller should be provided with the noise enclosure with a tower lamp to provide indication in case the levels of components in the bowl reduces. This feature is very popular with most customers as it relieves the operator from continuously checking the level of components in the bowl

Monish Shet

Monish Shete is CEO of Elscint Automation, a 30 year old firm manufacturing vibratory bowl feeders and similar small part handing products. He personally has more than 25 years experience with last 15 years being with Elscint. This blog will help customers and laymen understand the intricacies of vibratory bowl feeders. One can find information about the finer aspects of vibratory bowl feeders which cannot be found anywhere else. Case studies and information about various innovative ways of feeding and orienting of different parts are given in this blog.


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