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November 2018

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Getting a Handle on Extraneous Rust

FH 7

FH 10/12

"Nowadays, more products are being manufactured from stainless steel, and higher requirements are being placed on the surface finish of these products. In the process, a problem has appeared that does not seem to be spectacular at first glance, but ultimately causes high costs: extraneous rust," said a SUHNER spokesperson. "Preventing tools from coming into the surfaces of usually very expensive parts during grinding is difficult. Depending on the material of the tool, minuscule particles remain on the surface even in case of brief contact. Over time, these particles become visible as extraneous rust."

SUHNER, provider of universal grinding machines with a flexible shaft, has developed a series of new handpieces featuring the additional designation "INOX." The series comprises four basic models plus international variants, each of which is almost completely manufactured of stainless steel-from the external jacket to the clamping nut. "In practice, this means no contamination with rusting particles, the greatest possible protection of the workpieces and a clear reduction of costs," said the spokesperson.

The structural design with dimensions, weight, speed ranges and so on remains identical. The new handpieces thus fit the existing machines. To protect the ball bearing and dampen vibrations, the handpieces have an elastic bearing. "This makes machining with carbide cutters agreeable and protects the tools, while guaranteeing true running and a long service life," said the spokesperson. The handle sleeve is uncoupled from the working spindle. Air chambers in the bearing have a heat-insulating effect.

During vibration measurements with carbide cutters, a 50% reduction was measured in comparison with previous handpieces. For a quick and easy change, the new handpieces are equipped with an additional mounting aid.

The chuck diameters amount to 6, 8 and 12 mm with corresponding variants for the international market. The handle sleeves have a cylindrical shape for safe clamping in chucks, e.g., for the attachment of safety devices or customer-specific adaptations. External diameters are 18.5, 25 and 32 mm.

SUHNER also provides all flexible shafts with stainless hose couplings that fit all handpieces in the standard design, promoting long service life of both devices.

The new, straight handpieces have been specifically developed for the processors of INOX materials in the area of surface processing or refinement. They are used in container construction for the pharmaceutical and food sectors, the construction of large kitchen furniture, the metal construction of stainless steel doors and windows, railing construction and wherever a lasting, fine finish is decisive in stainless steel processing.

"SUHNER provides demo services and offers clients expert advice free of charge. The demo services vehicle carries all of the usual tools, attachments and abrasives. The right end-to-end solution can be found directly on site based on the actual workpieces," said the spokesperson.

For more information contact:

Suhner Industrial Products, LLC

43 Anderson Road SW

P.O. Box 1234

Rome, GA 30162


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