About Chicago Mechanical Polishing

Polishing is one of the most exacting finishing steps in industrial manufacturing — surface roughness targets are measured in micro-inches, finish standards run from ASTM B912-02 to ASME BPE to SEMI F19, and the right method depends on the substrate, geometry, and end-use environment.

Chicago Mechanical Polishing consolidates that intake. One specification submission is routed to a finishing facility with the equipment, accreditation, and material expertise to meet the spec — across Illinois, Wisconsin, Indiana, Michigan, and Iowa.

Electropolishing, mechanical polishing (rotary, belt, buffing, lapping), chemical-mechanical polishing (CMP), vapor polishing, vibratory polishing, edge / face / thread / weld / assembly polishing, and substrate-specific work on stainless steel, sapphire glass, and silicon wafers.

Finishes are produced to the standard named on the purchase order: ASTM B912-02, ASTM E1558, ASME BPE, SEMI F19, ISO 15730, or the customer's own internal spec.

1. Specification intake — material, geometry, target Ra / flatness, finish standard, quantity, and turnaround.

2. Engineering review — method, abrasive grade, and acceptance criteria are confirmed against the spec before the part ships.

3. Controlled processing — finishing performed at an accredited shop with in-process profilometer checks.

4. QA + return — final Ra and flatness logged; parts cleaned, passivated where required, and returned on a logged carrier.

Coverage spans Illinois, Wisconsin, Indiana, Michigan, and Iowa — Illinois, Wisconsin, Indiana, Michigan, and Iowa. Dedicated landing pages exist for 31 metropolitan areas, but parts are accepted from any address within the region; the cities above are not the boundary of the service area.