Studer sells 1,000th S31 universal cylindrical grinding machine

Fritz Studer says it has made history with the universal cylindrical grinding machine S31 by handing over the 1,000th machine to Wuhan Hangda Aero Science & Technology Development Co. in China.

Wuhan Hangda Aero Science & Technology Development Co. develops high-precision components for the aviation industry at the Dongxihu site in China. The company is experiencing steady growth and decided to invest in a new precision cylindrical grinding machine. After careful consideration and detailed technical discussions, Fritz Studer was awarded the contract for the S31.

The S31 is suitable for medium-sized work-pieces in single, small and large series production. It scores in its compact size and is especially popular with contract manufacturers who have very high and often complex requirements for cylindrical grinding. 2,500 tons of Granitan, a mineral casting that provides a vibration-damping, thermostable and wear-free machine bed, are used in 1,000 machines. An impressive figure in a successful history.

At the turn of the millennium, the first cylindrical grinding machine S31 left Studer in Steffisburg, Switzerland, and it is still in operation today. It is installed at Shvabe Munich in Geretsried, Germany.

"We are still very satisfied with our S31," said Tobias Traut, the head of the grinding department at Shvabe. The machine is in full operation for external and internal cylindrical grinding. The additional functions for form and thread grinding are used for the production of prototypes.

“On the S31, as on all Studer machines that are used in our house, I appreciate the high accuracy and that the machines are universally applicable," continued Traut. He proves that the S31 is an extremely reliable and consistent machine.

"A Studer cylindrical grinding machine is the guarantee for the highest quality," stated Yongjun Wang, deputy general manager at Wuhan Hangda Aero Science & Technology Development Co.

A great benefit for him, apart from the advantage to grind high-precision aircraft components, are the many features such as external and internal cylindrical grinding, thread grinding and high-speed form grinding. Thus, Wuhan Hangda can realize various grinding applications on just one machine.

"We already have several Studer machines in our factory,” he added. “This is also a selling point for our customers and with this we also gain their confidence."

Zhao Jianwei, senior sales manager for Studer Machines at United Grinding China (right), hands over the Swiss Rock Crystal to Yongjun Wang, deputy general manager of Wuhan Hangda Aero Science & Technology Development Co. (left).

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