Crown Grinding & Machining

Abrading Methods Inc. specializes in providing contract flat lapping, flat honing, precision fine grinding and production lapping services. Some of its services include double-side lapping, single-side lapping and contract services. Based in Elgin, Ill., the company uses specialized equipment and proprietary processes to perform these services for piece-part and production quantities. It provides value added services to its customers by providing all other related services, such as cleaning, tumble deburring, sorting, certification, packaging, and traceability. In some cases, it performs a complete part manufacturing and provide certificates of conformance for its finished goods when requested.

American Grinding and Machine Company is one of the largest flat grinding shops in the United States. The company's services include Blanchard rotary grinding, welding, Mattison reciprocating table grinding, bar grinding, steel warehousing, steel plate, flame cutting, saw cutting, stress relieving, shot blasting, painting and more. Based in Chicago, Ill., American Grinding and Machine Company is equipped with more than 22 large surface grinding machines. It manufactures a heavy-duty steel base or table called the Brute Base that is available in six standard shapes, as well as in customized shapes. The company fabricates all types of weldments from small pieces up to 30 tons.

Spectra-Tech Inc provides creep-feed grinding, through-feed grinding, and outer diameter grinding to the Hanover Park, IL area.