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What is ultra-finish processing "film polishing"?
"Film polishing," a type of ultra-precision machining that is still not widely known. This document provides basic knowledge about film polishing, including what this machining method entails and the effects it brings to products, as well as an introduction to what Sanshin's equipment can do.
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Inner diameter grinding device renewal
We have renewed the demo model of the film-type inner diameter polishing machine. The maximum size of compatible workpieces has increased in both height and diameter! During test trials before the equipment is finalized, processing under conditions closer to actual operation has become widely possible. If you are having trouble managing roughness with inner diameter honing or similar processes, please consider the film-type inner diameter polishing machine!
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External diameter finishing with 'external diameter film polishing'
This is an introduction to "outer diameter film polishing," which is used for ultra-finish machining of various shaft-type workpieces. - Wouldn't you like to achieve ultra-finish machining more easily, safely, and with less variation? Please take a look at what film polishing is, along with related products and catalogs!
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What is "film polishing," an ultra-finish processing technique?
"Film polishing," a type of ultra-precision processing that is still not widely known. This document provides basic knowledge about film polishing, including what this processing method entails and what effects it brings to products, as well as an introduction to what Sanshin's equipment can do.
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What is "film polishing," an ultra-finish processing technique?
"Film polishing," a type of ultra-precision processing that is still not widely known. This document provides basic knowledge about film polishing, including what this processing method entails and what effects it brings to products, as well as an introduction to what Sanshin's equipment can do.

Aboutサンシン
We will respond to the demands of the new era with our trusted specialized technology.
Sanshin Co., Ltd. responds to the demands of a new era with trusted specialized technology. We are the comprehensive and largest professionals in precision surface processing machines. When it comes to manufacturing in Nagaoka, the creation of devices and machinery is one key point, but at Sanshin, we believe that responding to the ever-changing needs of the times and utilizing our unique precision processing technology to meet the diverse and advanced requests of our customers is the essence of "monozukuri" (manufacturing). At Sanshin Co., Ltd., we have developed our own unique technology in collaboration with wrapping manufacturers based on our technology, experience, and many years of achievements in the production of film polishing machines. As a result, we have researched and developed high-quality, highly reliable ultra-precision polishing systems in various mechatronics fields, from the electronic industry to automotive industry components such as shafts and gears, responding widely to user needs. "Be a big koi in a small pond." Although our recognition is still low and the market is small, we aspire to continue being an innovator in nanotechnology and to promote the creation of valuable products as a leading company in the industry.