Applications

1. Machine Tool Spindles

        Since its founding, e+a has been dedicated to providing stators and rotors for high-speed, high-quality machine tool spindles. Our high-speed, high-torque stators and rotors are used in CNC lathes, milling machines, grinding machines, drilling machines, boring machines, engraving machines, and other premium machine tool spindles. Machine tool spindle stators and rotors include both asynchronous induction motors and permanent magnet synchronous motors. Typical power reaches 200 kW, typical torque reaches 2,000 Nm, and speeds can reach 300,000 rpm. Our stators and rotors can be configured in star, delta, or star-delta (high/low speed switchable) connections as required. e+a stators and rotors are compatible with all CNC systems including Heidenhain, Siemens, Fanuc, and Bosch drive systems, and we provide configuration parameters for common CNC systems.

        Currently, nearly all high-end motorized spindle manufacturers including Swiss Renaud, Fischer, IBAG, German GMN, Italian OMLAT, Taiwan THETA, and Chinese Dalian Machine Tool, Luoyang Bearing, etc., use e+a stators and rotors.

2. Turbomachinery

        Since the beginning of the new century, demand for high-speed turbomachinery has been growing across all markets. Previously, such equipment was either low-speed and low-efficiency, or used conventional motors with multi-stage gear increasers. Our high power-density, high-speed stators and rotors enable turbomachinery to achieve direct-drive high-speed motor operation. Most such equipment uses permanent magnet synchronous stators and rotors. Our permanent magnet rotor design allows quick assembly and disassembly without heating the rotor, avoiding performance degradation from heating while enabling repeated disassembly and reassembly. Currently, our stators and rotors in this industry reach 500,000 rpm, 2,000 kW power, and 10,000 Nm torque.

        For various turbomachinery applications, we can recommend matched high-frequency drives and high-speed bearings such as magnetic bearings. Upon request, we can also provide complete solutions including motors, bearings, and drives.

3. Cryogenic Equipment (Liquid Nitrogen / LNG Pumps)

        e+a offers cryogenic motors suitable for LNG, liquid nitrogen, and similar environments. Currently, our motors operate down to -200C, and motors for -250C environments are under development.

4. High-Speed Vacuum Molecular Pumps

        We tailor small-size, high-power, high-speed stators and rotors for various high-speed molecular pumps, ensuring efficiency and service life.

5. High-Temperature Flue Gas Purification Equipment

        Many factories emit high-temperature, sulfur-containing, and other harmful exhaust gases. With increasingly strict environmental regulations worldwide, factories urgently need exhaust gas purification. High-temperature purification equipment requires components that withstand high temperatures, contamination, corrosion, and long service life. e+a provides specialized stators and rotors for this industry, holding significant market share both domestically and internationally.

6. Other High-Speed, High-Torque Applications

        With over 40 years of experience and over 1.5 million sets of high-speed, high-torque stators and rotors designed and produced, combined with our design and selection software, we provide customized services for many industries and equipment types. We have successfully supplied stators and rotors for the following extreme environments (including but not limited to):

        (1) Vacuum environments
        (2) Corrosive gases
        (3) High-pressure environments
        (4) High-altitude, low-pressure environments
        (5) Cryogenic environments
        (6) High-temperature environments above 100C
        Motor cooling options include water, oil, air, LNG, and other cooling media (specify when ordering). Currently, our stator outer diameter can reach 750 mm, maximum speed 500,000 rpm, rated power up to 2,000 kW, and rated torque up to 10,000 Nm.
        If you have high-speed, high-precision, high-torque, relatively small-size stator and rotor needs - especially when you cannot find a suitable technical solution from other suppliers - please contact us. We will definitely provide you with a satisfactory solution!