John Ramming Machine Company was founded in 1876 to serve the steamboat engine business on the Mississippi River at St. Louis. The St. Louis Arch occupies our original location at First and Clark. Since moving to our present location, we have been continuously expanding our capabilities in Precision Machining and Special Machinery building.

Our apprentice-trained journeyman machinists and state-of-the-art CNC technology are dedicated to meeting your most demanding specifications for precision contract machining.

Other Capabilities include:

Our objectives in this market are to build the highest accuracy, heavy duty rotary positioning systems made in the United States.

Since 1975 we have manufactured Knight Precision Rotary Tables. Drawing on the fine tradition of our predecessor in the rotary table business, we provide the highest precision, heavy load bearing rotary tables in the industry.

We manufacture our own table bearing and hand-scrape all internal mating surfaces to guarantee our table flatness and runout specifications. We use the highest resolution rotary motion technology and mount directly to the center of the rotation for unexcelled precision positioning. 

The Industries link shows examples of past work, and links to pages about our machine tools. Please check our Rotary Tables link for examples of our Rotary Tables and basic table specifications.

For a prompt response to your inquiry please use the Contact Us link.

We are an ISO 9001:2000 certified shop.