Circle Boring & Machine Company 

Specialists In Precision Boring & Milling

Circle Boring & Machine Co. was founded in 1960 and is built on our knowledge and abilities with horizontal and vertical bore-mills.  We pride ourselves on producing quality precision parts both big and small.    

Our CNC horizontal and vertical bore-milling size capacity is matched by few in the industry.  We can machine parts up to 20 feet long, weighing  up to 40,000 pounds.  Our 25,000 Sq. Ft. building has six bridge cranes in four separate bays with up to 40,000 pound lift capacity. 

We have recently made major investments in CNC vertical and horizontal turning centers.  We turn parts up to 68 inch diameter by 60 inches high.  Make sure to check out this department via the links below.

Circle Boring does machining for manufacturers of mining and off-road equipment, automation equipment, machine-tool manufacturers and power transmission equipment. We also do machining for research and development, military contract and aerospace companies.  We machine bolsters, punch plates and die sets for the stamping industry.  We have extensive experience at machining parts for the forging industry. We also service the fastener industry with our ability and knowledge of repair machining of cold header parts and die blocks used in that industry.

Check Out Our Expanded Large Diameter CNC Turning Department.

Make sure to check out the other machining picture links below to get a good overview of the variety of precision work done here at Circle Boring and Machine.