#8 – SPECIAL EMO

Kronos S 250: User-Friendly Centerless Grinding

The German company MIKROSA won the i-NOVO Design Award 2015 at EMO in Milan for its Kronos S 250, a compact, versatile grinding machine for the large-volume production of small workpieces.

Paul Kössl, Vice-President, Sales and Marketing talked to Directindustry e-magazine about its brand new ergonomic design.

 

DirectIndustry e-magazine: What was your objective when you started to design the Kronos S 250?

Paul Kössl: We have designed the machine to be as easy to use as possible. This is important because productivity can be affected if the person who operates it all day does not feel comfortable. Our customers mainly supply OEMs in the automotive industry and their focus is always on the cost per part. Our main goal is to help them to be as efficient as possible.

DirectIndustry e-magazine: How exactly is the Kronos S 250 more ergonomic?

Paul Kössl: The working area inside the machine is easily accessible from the outside—there is no need to climb in or even bend forward. The new control panel is height adjustable and we have modified the control system to make programming more user-friendly. There is also better access for maintenance.

DirectIndustry e-magazine: What are its main technical features?

Paul Kössl: It is the only centerless grinding machine with a cross-slide system, which gives enormous flexibility during grinding. It has a very stable machine bed made from Granitan that has excellent damping characteristics. The grinding spindle has maintenance-free hybrid bearings, enabling speeds of up to 7,000 rpm and peripheral speeds of up to 150 m/s. Reproducibility of grinding results is excellent, even at tolerances of less than one micron.

DirectIndustry e-magazine: What makes the Kronos S 250 different from other grinding machines?

Paul Kössl: On the market today there is no centerless grinding machine with a wheel width of 250 mm that can match its high output and extreme accuracy. The feedback from customers has been very good and we have won many repeat orders.

 


About the Author

David Porteous is a UK-based journalist with 25 years of experience in industry and engineering issues. He has a passionate interest in innovation and new technologies.

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