Mechanical Polishing
Mechanical polishing, like machining, alters a surface by cutting material away from the surface.   A mechanically polished part surface requirement is generally specified by a polish number (#), a RMS or an RA surface spec.  Electropolishing improves a surface finish on a microscopic level while mechanical polishing improves a surface finish on a macroscopic level.

A #4 finish is one of the many generally accepted, mechanical finishes which are often used in the metal finishing industry. A #4 is produced by finishing with a 120-150 mesh abrasive. This finish is commonly found on architectural panels and stainless steel kitchen appliances and sinks.  A #2B finish is a bright, cold-rolled finish. This finish is a standard finish for raw sheet metal and is produced at the mill.  A #8 finish is a highly polished, highly reflective, "mirror like" surface. This finish is produced by polishing with successively finer abrasives followed with extensive buffing.

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Harrison Electropolishing offers the highest quality precision mechanical polishing available in our industry. We understand the many industrial applications for precision polished parts and their various methods of description. Our technicians can meet your specifications, be it grit finish, Ra or RMS readings. All of our finishes can be measured and certified to ensure the highest quality.

At Harrison Electropolishing we have the experience and expertise to meet the most stringent requirements of today's industries. Our unique process combines precision mechanical polishing techniques, the latest polishing equipment, several proprietary components and over 70 years of experience to deliver the quality and service you require. We have a broad range of capabilities; from basic deburring of a cast, forged or fabricated parts, to ultra fine finishing for high purity applications.

Mechanical Polishing

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03.17.09