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Welcome To Walther Trowal! 
The Leader in Mass Finishing Technology for over 75 Years.





As the oldest company manufacturing mass finishing and surface preparation equipment in the world, we have the experience to help you with your parts finishing requirements. Over the last 75 years, we have developed or invented the following technologies:

  • The first vibratory finishing system in 1956
  • The first vibratory bowl with internal separation
  • The first geometrically shaped ceramic & plastic grinding medias
  • Development of the high energy drag finishing technology
  • Development of the centrifugal disc high energy finishing technology
  • Development of the centrifugal filter wastwater recycling technology
  • Developed the Rotamat small parts coating system
  • Development of the edge preparation system for carbide tools
  • Development of the THM continuious flow shot blasting technology

Our web site is full of technical information regarding our products and services, so please read on and find out how Walther Trowal can help you find the correct solution to your finishing requirements.


Contact Information


Located in Grand Rapids Michigan, we are eager to help you with you mass finishing requirements.
 More

Wastewater Recycling Helps Saves You Money!

Our centrifuge wastewater recycling technology will save you money by reducing the amount of water and soap you use in the mass finishing department.
more . . .


Wheel Polishing Machine Gets Rid of Time Consuming Hand Work!

The MV 21 machine is the latest innovation by Walther Trowal. You can say goodbye to manual hand finishing of your aluminum wheels forever!

more . . .


Extend the life of your carbide cutting tools!

Extend the life of your carbide tooling by as much as 150% by prepairing your end mills with the Trowal M-TMD finishing system.
more . . .







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