Vane Material is designed for dry-running applications.

Press Release Summary:

Available for manufacturing of graphite vanes for OEM and aftermarket dry running vane pumps, self-lubricating and dimensionally stable grade MH1 can be molded to near net shape and machined to tolerances of 0.0005 in. Impact-resistant, resin bonded graphite design contributes to extended vane life in non-lubricated vacuum pumps and compressors. It will not damage bore of housing, exhibits low wear rate, and is specifically designed for use in dry-running applications.

Original Press Release:

Helwig Carbon Products, Inc. Announces Release of New Vane Material - Grade MH1

MILWAUKEE, WI, USA, MAY 1, 2009: Helwig Carbon Products, Inc. announces today the release of their new vane material, grade MH1, for use in oil-less vacuum pumps and compressors. This low wear rate vane material is specifically designed for use in dry running applications. MH1 is economical and readily available for the manufacturing of graphite vanes for OEM and aftermarket dry running vane pumps.

Helwig's testing has shown that it out performs the competitive vanes including the standard material found in major OEM vane pumps.

MH1 is a uniquely formulated resin bonded graphite that provides long vane life in non lubricated vacuum pumps and compressors. It is self lubricating, dimensionally stable, with excellent strength, hardness, and impact resistance. It can be molded to near net shape and machined to tolerances of 0.0005" [0.013 mm]. It will not damage the bore of the housing.

Paul Casper, General Manager of Helwig, says "We needed a competitive advantage in order to go after the carbon vane market, so we developed a new grade that would outperform the competition and give us more control of the cost."

MH1 is available from Helwig Carbon Products, Inc. as a precision machined finished vane.

For additional information contact Marvin Herche, Technical Service Manager, Special Products Division @ Phone: (414) 362-6241 or E-mail: or our Technical Group @ Phone 888-353-3190 or E-mail:

For over 80 years, Helwig Carbon Products, Inc. has produced a full-line of carbon brushes, brush holders for the electrical industry, and precision-machined mechanical carbons products.

Headquartered in Milwaukee, Wisconsin, USA, Helwig Carbon remains one of the last family owned American carbon companies. With global subsidiaries in Canada and Mexico, joint ventures in Germany and Czech Republic, and worldwide partnerships with Gerken SA, Belgium and SGL Carbon.

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