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  6. High precision of 1/1,000mm × rapid response with a dual-location system! Jig grinding processing.

High precision of 1/1,000mm × rapid response with a dual-location system! Jig grinding processing.

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last updated:Nov 27, 2025

イシイ精機
イシイ精機
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Through jig grinding, we are delivering "products that require precision" such as mold components, precision parts, optics, automotive-related items, chemical-related products, medical-related items, and food-related products to the world.

Our company offers "High-Precision Jig Grinding/Moore Jig Grinder Maintenance Services." We provide a variety of services including contract jig grinding, import and sales of overseas jig grinders, retrofitting of jig grinders, and technical guidance for jig grinding. Through jig grinding, we deliver "products that require precision" such as mold components, precision parts, optics, automotive-related items, chemical products, medical devices, and food-related items to the market. We accept requests from all over Japan. Please feel free to contact us. 【Features】 ■ Grinding by specialized technicians focusing on Moore G18/G48 ■ High-precision processing of 1/1,000mm ■ Capable of diverse processing and various materials ■ Support from material procurement to rough processing and finishing ■ Quick response with two factory locations and two gantry machines *For more details, please download the PDF or feel free to contact us.

    Processing Contractjig
?ジグ研削加工

High precision of 1/1,000mm × rapid response with a dual-location system! Jig grinding processing.

?ジグ研削加工 画像.png
?ジグ研削加工 画像.png
  • Related Link - https://www.jg-ishii.co.jp/site/

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【Specifications】 ■ Hole diameter: Accuracy guaranteed from φ0.8 to φ300, capable of processing from φ0.4 to φ600 according to machine specifications ■ Work size: Maximum 600mm × 1200mm × Z500mm (weight up to 1 ton) ■ Tolerance: H6/H7, roundness from 0.001mm and above ■ Equipment: 19 Moore jig grinding machines in total ■ Ancillary equipment: 3D measuring machine, roughness measuring machine, block gauges, pin gauges ■ Supported materials: SKD, STAVAX, super steel, SUS, aluminum, copper, etc. (please consult us) ■ Supported processes: Consultation → Meeting → Order → Processing → Inspection → Delivery *For more details, please download the PDF or feel free to contact us.

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Applications/Examples of results

【Applications】 ■ High-precision hole machining ■ Machining of positioning reference holes ■ Alternative for finishing processes (post holes for press molds, bushing holes, knock pin holes, corner pockets for mold inserts, round holes, square holes, and irregularly shaped punches and dies with micron-order clearance) *For more details, please download the PDF or feel free to contact us.

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When it comes to jig grinding, Ishii Seiki.

When it comes to jig grinding, Ishii Seiki.

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イシイ精機

イシイ精機

Manufacturing and processing contract

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We are a company that sells "jig grinding" technology. Since our founding in 1968, we have continued to strive to be one-of-a-kind with our expertise in "jig grinding" as a technical group. We handle precision machine parts and mold jig grinding, constantly making efforts to enhance our technical capabilities and reduce our return rate to as close to "zero" as possible. This has earned us the trust of many customers, and we receive work from over 200 major automotive and home appliance manufacturers nationwide. Our commitment to quality work starts with "good equipment." We actively introduce jig grinding machines from Moore Tool Company, a long-established American manufacturer known for its world-class performance, and together with the skills of our operators, we challenge ourselves to deliver highly reliable work that exceeds the limits of jig grinding.

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