Okamoto surface grinder Mitsui Surface Grinder
Machine Rebuilders


A Division of STK Rebuilders, Inc.

500 N. La Fox St., South Elgin, IL 60177
Ph: 847-888-0797 * Fax: 847-888-0897
Email: sales@bridgeportmachinerebuilders.com
Rebuilt Mitsui surface grinder




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For Sale
Mitsui 612 hand feed surface grinder
*Ready for delivery. $5,500
For Sale:
Kent 1860 surface grinder

*Ready for delivery. $4,990
For Sale:
Customize your
Bridgeport Series I mills
*Rebuilt with a 1-year warranty.
*E-mail for latest delivery dates.
*Price range: $6,200 - $7,600
**Trade-ins accepted
American Made
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STK Rebuilders is featured in Cutting Tool Engineering
STK Machine has "Gone Green" Press Release - 6/9/08!

Mitsui surface grinder rebuilding
Over the past 30 years, STK Machine Rebuilders has rebuilt well over 1,200 surface grinders, ranging from Mitsui, Harig, Okamoto, Boyar-Schultz, Brown & Sharpe, and many other surface grinders. Our service department prides itself with the vast knowledge and expertise efficiently solve your problems in a cost effective manner.

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Hand scraping is what gives Mitsui surface grinders a distinctive feel. STK Machine Rebuilders hand scrapes bearing surfaces on all the mating surfaces of the iron. This provides a customized surface to surface fit.
All ways are scraped and/or reground to original tolerances, set by Mitsui.
Used Bridgeport mills
The lubrication system is the most important component of the way surfaces. At times the lube system will be overlooked and for lack of a better word, neglected. We focus on this important part of the machine to insure a longer life for the machine rebuild.
Mitsui machine rebuilders Bridgeport milling machine repairs
As you can see, every Mitsui surface grinder is a candidate for a machine rebuild. Mitsui has produced a quality machine for many years, knowingly or unknowingly setting the stage for machine rebuilders as a competitor. Our surface grinder rebuilding service can and will produce a surface grinder comparable to a new Mitsui surface grinder, for 50-60% of the cost of a new machine. Our process will return your surface grinder to it's original condition, with a 1-year warranty.
A brief summary of our machine rebuild process:
  • Dismantle, clean, and inspect machine tool
  • All components are available for customer's inspection
  • Scrape, flake, and fit all quoted way surfaces to full bearing, assuring longer life of all necessary components
  • Regrind ball ways
  • Replace ball bearings in tracks
  • Replace crossfeed screw & nut assembly
  • Rebuild spindle
  • Inspect electrical system
  • Polish all bright work
  • Professionally painted
  • Inspect oil system
  • Assemble and realign to original tolerance
  • Machine guaranteed for a period of 1 Year, under normal use and proper maintenance



  • For more information, please call
    (847) 888-0797
    STK Machine Rebuilders, Inc.
    500 N. La Fox St.  
    South Elgin, IL 60177
    www.bridgeportmachinerebuilders.com