Building on a Legacy of Precision. Creating the Future Together.

News

2025年8月6日

YRP Innovation Center Inauguration Ceremony Successfully Held

2025年7月15日

Notice of Summer Holidays

2025年7月10日

Exhibition Announcement | YRP Open Innovation Day 2025

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IRINO KIKO Precision
Internal Grinding Machines

We continue to create the finest internal grinders, backed by 60 years of experience and knowledge in manufacturing.

We support your business with high-performance, high-quality products that meet the needs of various industries.

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Product Introduction

Introducing IRINO KIKO’s Products

IIG Series

A versatile hybrid machine combining the ease of use of a conventional machine and the convenience of an NC machine

This is the latest versatile hybrid machine developed based on our YIG model.
Visualizing the position information of the X and Z axes, making 0.3 microns easier to achieve.

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YIG Series

The standard in precision internal grinding machines

Manufactured since 1962, this is our long-selling product with a total of 3,000 units produced.
With excellent mechanical properties, high rigidity, and a combination of precision components, it achieves a roundness accuracy of 0.3 microns.

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Media Information

Media Features Introduced

新聞

Featured in Nikkan Kogyo Shimbun

An article on the IIG-20H was published in the February 22, 2024 edition of the Nikkan Kogyo Shimbun.

Major Business Partners

For Users of IRINO KIKO Products

For troubleshooting or repair requests, please click here.
Our specialized support team will respond promptly to help maintain your products in optimal condition.

Troubleshooting

If you encounter any issues, please check here for solutions.

Repair Requests

For repair requests of IRINO KIKO (formerly Yamada Koki) products, please click here.

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