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Frameless Motor Capable of Speeds up to 70Krpm

Product Announcement from BEI Kimco

Frameless Motor Capable of Speeds up to 70Krpm-Image

BEI Kimco Solves Demanding Application Requirements for High Performance Motor Capable of Speeds to 70Krpm

BEI Kimco Magnetics, a company of Custom Sensors & Technologies (CST), Inc., recently developed a BLDC motor to meet the challenging high speed requirements for a Turbomolecular Vacuum Pump application. The Turbomolecular pump is widely used in the semiconductor device manufacturing process, which requires highly compressed gases for chemical deposition and implantation. The pump design incorporates the specially designed BEI motor driven turbine rotor, which is capable of operating speeds of up to 70,000 rpm. The extremely high speeds are essential to achieve vacuum pressures down to one micropascal.

Key to the success of the project was to design a compact, reliable and efficient motor capable of reaching and maintaining the required speeds under continuous duty conditions. To meet the customer's specifications, BEI Kimco developed a Frameless Permanent Magnet BLDC Motor (Model # DIP14-14-000A) measuring 1.4" in diameter x 1.4" in axial length. The Rotor/Stator Part Set configuration allows the motor rotor to be directly coupled to the load, resulting in excellent operating efficiencies, minimal parts count and a compact form factor. A stainless steel sleeve secures the magnets in place at the extreme speeds.

"BEI's proprietary magnetic circuit design approach was the key to accomplishing the high speed rotation loss characteristics necessary for this application," says Walter Smith, BEI Kimco's Senior Applications Engineer/Project Manager for Motors. "The development process once again proves BEI's ability to provide products that meet unique customer needs."

With its exceptionally high speed capabilities, the new motor can be adapted to a wide variety of other applications including medical hand-pieces and pumps. Pricing is from $100.00 in production quantities with delivery in eight weeks.

BEI Kimco's motors and actuators have been used successfully in countless mission-critical applications for many high-end industrial and military applications. The ability to provide high-performance solutions tailored to the specific needs of the customer has allowed Kimco to consistently fulfill unique and challenging OEM requirements.

For more information contact BEI Kimco Magnetics, 1499 Poinsettia Ave. Suite #160, Vista, CA 92081-8430, USA, Tel: (760) 597-7042; Toll-free: (800) 572-7560; Fax: (760) 597-6320; email:;

About BEI Kimco Magnetics:

BEI Kimco Magnetics is an operation of Custom Sensors & Technologies (CST). BEI Kimco Magnetics was founded in 1974 and specializes in rotary and linear motion control products. The company's precision motion control products include high-speed performance Brushless DC motors, Cylindrical and Flat Voice Coil Actuators, and Linear Motors. These products are used across a wide range of applications including medical and scientific, factory and office automation, optics, semiconductor/electronics, military, aviation, space systems, and security. Kimco merges leading-edge capabilities and cost-effective manufacturing know-how with highly customized applications expertise.

About Custom Sensors & Technologies:

Custom Sensors & Technologies (CST) is a specialist in sensing, control and motion products.

Through its brands, BEI Kimco, BEI Sensors, BEI PSSC, Crouzet, Crydom, Kavlico, Newall and Systron Donner, CST offers customizable, reliable and efficient components for mission-critical systems in Industrial, Aerospace & Defense, and Transportation markets. Focused on premium value offers and committed to excellence, CST, with more than 4,000 employees worldwide and sales of $530M US in 2009, is the dependable and adaptable partner for the most demanding customers.