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  6. Jig grinding

Jig grinding

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last updated:Nov 27, 2025

イシイ精機
イシイ精機
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We accept inquiries regarding technologies and processing methods related to jig grinding, as well as consultations on related processing and maintenance services!

Our company has been engaged in jig grinding for many years and, as professionals in jig grinding, we provide proposals that meet our customers' needs. The CNC gantry jig grinding machine can perform jig grinding processing for large products exceeding 1 meter. It can also meet the stringent quality requirements for dimensional accuracy and durability demanded by precision molds made of cemented carbide. Additionally, we can handle a variety of processing tasks, including post holes, bushing holes, knock pin holes for press molds, and corner pockets for insert molds. 【Features】 ■ High precision of 1/1,000mm ■ BCP established at two locations: Yokohama and Niigata ■ Versatile processing and diverse materials ■ From part processing to final finishing ■ Maximum work size of 1,200mm ■ Capable of general part processing and mold production *For more details, please download the PDF or feel free to contact us.

    Processing Contractjig
イシイ精機

Jig grinding

イシイ精機 ロゴ.png
イシイ精機 ロゴ.png
  • Related Link - https://www.jg-ishii.co.jp/site/

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basic information

【Specifications】 ■ Hole diameter: Accuracy guaranteed from φ0.8 to φ300, can be processed 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 ■ Auxiliary 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】 ■ High-precision hole machining ■ Machining of positioning reference holes ■ Alternative to 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-level clearances) *For more details, please download the PDF or feel free to contact us.

Company information

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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