Supfina Machine Company, Inc.

181 Circuit Drive

North Kingstown, RI 2852 US


A Message from Supfina Machine Company, Inc.

Precision is our passion

That core value ​​drives us to be the technology leader for superfinishing, fine-grinding, and flat-finishing systems.

Precision abrasive finishing: Fine grinding

From aluminum to steel, from soft plastics to hard ceramics: No matter the workpiece properties, our new SPIRO F7 machine provides the best fine-grinding solution for achieving highly precise plane parallelism.

Precision abrasive finishing: Flat finishing

Supfina’s new FACE machine provides fast, versatile solutions for the high-precision, flat finishing of parts in a number of fields: injection technology, transmissions, hydraulics, and engines.

Superfinishing: Gear shafts

Designed on the modular principle, the Supfina M-660 is suitable for almost all superfinishing tasks on workpieces capable of being positioned between centers.

As Seen In Modern Machine Shop

Supfina Spiro series

Grinding Machines Designed for Precise Plane Parallelism
Supfina Machine Company’s Spiro series of surface-finishing systems supports fine grinding with precise plane parallelism (less than or equal to 1.0 micron) for precision bearings, pump gears and valve plates.

Product Categories of Supfina Machine Company, Inc.

Buffing & Polishing Machines
Grinding Attachments & Accessories
Grinding Machines, Disc, Single or Double
Super (Micro) Finishing Machines
Superabrasive Machining Systems
Turning Attachments

Trade Names

Plant V