Duct Silencer: Measured Results

      With an inexpensive decibel meter, a shop owner finds out how much a duct silencer has quieted down the noise from his dust collector cyclone. April 27, 2011

Question
I posted in August about noise reduction to expect from duct silencers. As a result, I bought a silencer from Air Handling Systems and installed it between my outdoor cyclone and the indoor baghouse. It performs as expected and was well worth the cost. I should have done this years ago. Here are the results using a Radio Shack sound level meter on a weighting standing next to my return air baghouse in the building:
Before: 90 dB
After: 76 dB

Forum Responses
(Dust Collection Forum)
From contributor J:
I'm surprised you have that much noise with the cyclone outside. My cyclone is inside and it's usually louder than the machines I'm using. I've been thinking about building a sound reducing wall around the cyclone, but I may have to look into getting one of those silencers. Thanks for sharing your results.



From the original questioner:
The cyclone is actually quieter outside than it is inside. Most of the sound stays in the duct, I guess, and ends up back in the building.


From contributor O
I have the same experience; the noise is almost all in the ductwork, especially where it exhausts back into the room. I've been thinking of getting a silencer for my little 2HP cyclone. It's nice to hear that they can make a real difference.


From contributor C
Is that the less than $50 meter Radio Shack has on their online site? Seems like a good tool to have.


From the original questioner:
Yes, it is the one that is online (Digital-Display Sound-Level Meter, Model: 33-2055).

Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?


Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Knowledge Base

  • KnowledgeBase: Dust Collection, Safety, Plant Management

  • KnowledgeBase: Dust Collection, Safety, Plant Management: General


    Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.



    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2016 - WOODWEB ® Inc.
    All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor.
    Review WOODWEB's Copyright Policy.

    The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB











  • WOODWEB - the leading resource for professional woodworkers


      Home » Knowledge Base » Knowledge Base Article