Innovative solutions for high-precision grinding applications

Okuma Europe reveals its “best-kept secret” at GrindingHub 2022

Krefeld/Stuttgart (Germany), 1 March 2022. Okuma is on its way to Stuttgart, Germany, where the world-renowned manufacturer of CNC machine tools is set to reveal its best-kept CNC grinding machine secret at GrindingHub 2022, which will run from 17 to 20 May. The company will present the GI-20NII and the GP25W to an audience of trade professionals at its 91 m² stand located at Booth A18, Hall 10 of the Messe Stuttgart exhibition centre.

Okuma enjoys an international reputation for innovative turning and milling machines featuring proprietary CNC control systems. But the fact that this same machine tool manufacturer has also been very active in promoting the development and production of innovative grinding machines for over 100 years has often taken a back seat. At GrindingHub 2022 in Stuttgart, Okuma is now set to show that it is just as capable of creating equally high-quality, high-performance solutions in this field by presenting two innovative products that deliver incredibly precise grinding with maximum dimensional accuracy.

Detailed profiles with the GI-20NII
The GI-20NII internal grinding machine is perfect for profile grinding and automated series production. It is enormously precise, highly efficient and especially reliable, thanks in part to the five-sided hydrostatic axis guide that has proved so successful at Okuma. The company’s own Thermo-Friendly Concept achieves thermal stability and, therefore, better machine performance. With the aid of the numerically controlled axis, the machine is able to reach a higher removal rate at faster cycle times, whether in the two-spindle version or the four-spindle version. The direct-driven high-frequency spindles with various power and speed ranges offer maximum flexibility. Finally, the machine can be equipped with a top speed range of 15,000 rpm to 150,000 rpm, depending on requirements.

Optimum external grinding with the GP25W
The GP25W is ideal for the high-performance machining and high-precision mass production of small parts to be used in either the automotive industry, household appliances or hydraulic systems. Its compact dimensions make it easy to accommodate and it can be relied on to run accurately. Users benefit from shorter machining times thanks to fast axis feed rates. What’s more, the grinding disc speed is adjusted automatically and unwanted resonant frequencies caused by the machining process are monitored to keep component accuracy consistently high.

CNC control system for incredible ease of use
Both of these grinding machines are supplied with Okuma’s OSP-P300GA CNC control system, which makes them so easy to use and also ensures faster set-up times.

For more information about Okuma at GrindingHub 2022 and to make an appointment to see us there, please visit

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