Dressing a Wide-Belt Sander Conveyor Belt

      How to touch up an old, stiff, hard conveyor belt on a wide-belt sander. May 18, 2010

I recently purchased a 7 year old EMC (Laguna) wide belt sander that has been sitting unused for a couple of years. I'm in the process of setting it up in my shop, and I noticed that the board conveyor belt has become hard on the surface. While test sanding a few boards yesterday (very light sanding), one of them shot out of the machine because the conveyor belt adhesion is so poor.

What options do I have to address this, other than purchasing a replacement conveyor belt? Is there anything I can treat the conveyor belt with to soften it up?

Forum Responses
(Solid Wood Machining Forum)
From contributor R:
One thing you could do is use the sanding head to lightly touch the conveyor belt. This will just take off the top surface of the belt and calibrate your conveyor belt to your sanding head. You would need to run the conveyor belt fast and take off only the smallest amount. This will make a mess. Likely you need to take off a limit switch, which limits the table travel so that you don't sand the conveyor belt.

From contributor J:
Ditto what contributor R said. Use a coarse belt. I keep a 60 grit just for this. I also found it helpful to take a magic marker and make a few lines from side to side at a couple of spots on the belt. A side benefit to dressing the conveyor like this is that you will be sure that the drum is parallel to the belt. Keep micro adjusting upwards until all magic marker lines are removed all the way across the belt.

From the original questioner:
Thanks. I'll give that a try.

From contributor B:
Are you sure your front and rear hold down pressure rollers are in working order?

From the original questioner:
I'll double check the setting on the hold down rollers; thanks for the advice. Compared with other sanders I've seen, the conveyor belt sure seems hard. The hardness is similar to that of a pencil eraser that's been sitting in a drawer for 20 years...

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: Solid Wood Machining

  • KnowledgeBase: Solid Wood Machining: Setup and Maintenance

    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 © 1996-2019 - 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