Circle Boring & Machine

Precision Milling, Boring and Turning

Circle Boring & Machine Company was founded in 1960 and was built on our capabilities with precision boring and milling. Our CNC milling, boring and turning capacity is today matched by few in the industry. The expertise we have in these areas of machining has helped our customers turn their innovations into realities.

We can machine parts over 20 feet long, weighing up to 40,000 pounds. We also machine parts that fit in the palm of your hand. Our 25,000 sq. ft. building has six bridge cranes in four separate bays. We are more than just a typical job shop.

We have recently made major investments in our turning departments. Our CNC vertical lathes can turn parts up to 68 inch diameter by 60 inches high. Be sure to check out our Large Part Turning page that details the types of turning work that we do.

Markets Served and Services Offered:

Stamping industry (die sets and bolsters)
Forging & metalworking (rams, sow blocks, side rails)
Mining and off-road equipment
Renewable energy
Machine tool
Special machine builders
Automation / Assembly (indexing dials, machine bases & frames)
Transmission gear cases
Gear blanks
Ring turning
Flat plate work
Research & development machining
Printing press side frames
Blanchard grinding to 84"
Repair machining

Please browse through the links to the left to see examples of the many types of parts we machine and what services we can supply to your company.

The large gear blank shown to the left was machined in our CNC turning department. Our equipment and our experienced operators combine to give you an excellent part at a good price.

Check out Our Turning Department

Circle Boring & Machine Co., Inc

3161 Forest View Road

Rockford, IL 61109

Phone (815) 398-4150

Fax (815) 387-0062

Sales Manager: Gary French (gary@circleboring.com)