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You are here: Home / Motors / DC Motors / Portescap unveils coreless DC motors with REE technology

Portescap unveils coreless DC motors with REE technology

September 26, 2011 By Motion Control Tips Editor Leave a Comment

Portescap (www.portescap.com) has announced that its coreless DC motors range meets the demanding requirements of intrinsic safety application with proprietary Reduced Electro Erosion (REE) technology.

“DC motor commutation is accomplished via brushes, which leads to electrical arcing during rotation. To reduce electro erosion while extending commutator life, Portescap innovated the proprietary REE coil system to reduce the effective inductivity of brush commutation by optimizing the mutual induction of the coil segments,” said Dave Beckstoffer, Project Manager for Strategic Markets.

“Portescap conducted tests on motors with and without REE coil optimization and found that commutator surface wear with REE coils showed improvements ranging from 100 to 300 percent.”

Aside from the benefits of REE technology, the company’s brush DC coreless motors also offers salient features such as no cogging, low moment of inertia, high efficiency, compact commutation and low friction resulting in high acceleration, higher continuous torque and very low joule losses. The motors deliver maximum continuous torque ranging between 0.66 mNm and 158.6 mNm, a low motor regulation factor (R/K2) of .3 103/Nms, and no load speed that range from 11,000 RPM (eight mm) to 5,500 RPM (35 mm).

Its intrinsically safe motor operation is especially important in ambulatory applications subject to extra-ordinary operating conditions and/or harsh environments. Typical applications include environmental analyzers, fuel cells and gas analyzers.

This highly efficient, lightweight coreless DC motors also serves as an ideal solution for miniature pump manufacturers faced with issues of intrinsic safety in portable applications.

Filed Under: DC Motors Tagged With: Portescap

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