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Based on the technology cultivated in watch manufacturing, we propose various grinding machines that achieve precision and high-speed processing. With expert craftsmanship, we provide compact and energy-efficient internal grinding machines that are friendly to the factory environment.
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【Product Lineup】 ● General-purpose internal grinding machines STG series ● Small internal grinding machines SG1 & SG2 series ● Internal and raceway grinding machines for bearing component processing ● Internal and end surface grinding machines for automotive component processing and more *For more details, please contact us or refer to the catalog.
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Seiko Instruments offers various grinding machines that achieve precision and high-speed processing based on the technology cultivated in watch manufacturing. We provide compact and energy-efficient internal grinding machines that are friendly to the factory environment, utilizing expert craftsmanship.


![[Processing Example] Alumina General-purpose Grinding Machine CNC Internal Grinding Machine STG-3N](https://image.mono.ipros.com/public/product/image/fca/2001032936/IPROS37202342486733079828.png?w=280&h=280)
![[Processing Example] Die <Difficult-to-Cut Material> CNC Internal Grinding Machine STG-3N](https://image.mono.ipros.com/public/product/image/adc/2001060740/IPROS72373288977953842577.png?w=280&h=280)
![[Processing Example] Die General-purpose Grinding Machine CNC Internal Grinding Machine STG-6N](https://image.mono.ipros.com/public/product/image/d7d/2001032945/IPROS78753934376347986945.png?w=280&h=280)
![[Processing Example] Magnet General-purpose Grinding Machine CNC Internal Grinding Machine STG-3N](https://image.mono.ipros.com/public/product/image/1c7/2001032934/IPROS35134524477834360420.png?w=280&h=280)

![[Explanation] Explaining methods to remove the negative effects caused by sludge.](https://image.mono.ipros.com/public/product/image/8e9/2001537545/IPROS8209250640029627777.png?w=280&h=280)
![[Explanation] Explanation of methods for removing hard materials and hard material sludge.](https://image.mono.ipros.com/public/product/image/2094225/IPROS13115581485700036422.png?w=280&h=280)