Mass Finishing Equipment at Kramer Industries Inc Home Home Home ShopTalk Blog Search Help Cart Contact
Sign In Order History
Right From The Start - Call us at 1-888-515-9443
The Finished Part Blog

The Finished Part Blog

Tuesday, April 19, 2011

Fired Clay Parts Tumbling

Common sense would state that using a barrel tumbler for fragile fired clay parts would be inadvisable. The aggressive tumbling action would damage or crush the parts. This logic might follow for brittle parts such as ceramic tile and the like.

In fact, tumbling all types of fragile and brittle parts can be accomplished quite successfully in a barrel tumbler. The part in the picture above is a molded and fired clay pendant that is only about 1/8" thick. The project required that the excess material on the edges be removed and that the edges are heavily rounded.

In this case, a wet process would have involved undesirable absorption of water into the pendant. A dry tumbling process was used to achieve the stated goals. The parts were tumbled with Hardwood Media and White Aluminum Oxide for less than 2 hours to achieve the edge rounding as seen in the part on the right. As long as the proper ratio of media to parts (about 4:1 in this case) is maintained, damage the parts will be insignificant and batches as large the barrel will allow can be done.


  • Barrel Finishing Systems
  • Vibratory Finsihing Systems
  • Blasting Systems
  • Abrasive Media
  • Tumbling Media
  • Chemical Compounds
  • Parts Separating Systems
  • KramerThinksGreen
  • Finishing Guides
  • Applications
  • Newsworthy
  • Repairs and Services
  • Material Safety Data Sheets
  • Catalog
  • Ordering Information
  • Guarantee
  • Newsletter
  • About Kramer
  • Contact Us
  • We specialize in customizing systems, products and procedures. There are many options and custom systems available. If you don't see something on our web site, please contact us.


  • Secured by Rapid SSL. 128 bit SSL Security. $10,000 Warranty.