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The Efficient Solution for Exact Finishes

Lapping is a bore sizing and finishing process that uses a special lapping tool coated with abrasive paste to remove minute amounts of stock from the inside diamater of a bore.  Sunnen's unique SVL-2115 lapping machine automates much of this bore finishing process, thus increasing accuracy and output versus hand lapping.

Automated lapping is used to:

  • Improve consistency of finished parts
  • Reduce reliance on human operators
  • Improve workplace safety by eliminating manual processing
  • Tighten tolerances in bore diameter, roundness and straightness
lapping machine

Machines that Work Harder. Accessories that Last Longer.

Our reputation is built on quality and durability. You’ll find Sunnen machines from the 1940s that are still running strong to this day. Over the years, we’ve applied our expertise with emerging technologies to develop the industry’s largest catalog of bore finishing machines. We also offer all the tools, accessories and training necessary to sustain a high-performance operation.

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