Asynchronous Motors  Manufacturers, Traders, Suppliers

 Innovative electric motors with:
• highest power density
• highest possible torque together with high speeds
• lowest possible heat generation
• lowest possible vibration levels
• and highest precision
• overall the best value
 Equipment:
• Proven technology from our experience in precision spindle engineering and production
• Water cooled
• Temperature sensors
• Precision hybrid ball bearing

Three phase asynchronous motors made by Wölfer stand out on account of their robust design and their very high performance capacity. They are individually manufactured in accordance with our customers' requirements. The use of special rotors with appropriately adapted geometry makes it possible to achieve excellent control qualities. A high pull out torque guarantees safe operation in the field weakening. On account of their low moment of inertia, these highly dynamic drive motors have the advantage of shorter acceleration time combined with reduced frequency converter current. Consequently smaller frequency converters and reduced cable cross sections can frequently be used.
Nominal voltages up to a maximum of 690 volts as well as frequencies and rated speeds are freely selectable for our motors, providing physical and mechanical limit values are observed. Special insulations and special winding wires are used which are almost completely resistant to partial discharges which ensue in frequency converter operation. Many different kinds of control and protection equipment are also available. Furthermore, it is also possible to integrate holding brakes, separately driven fans and other components. All the motors have excellent regulation properties which also mean low life-cycle costs.
Three-phase asynchronous motors – squirrel cage and slipring motors

• range of power: 2.2 to 2000 kW
• frame sizes 100 to 560 in conformity with IEC
• types of protection IP 23 to IP 56
• nominal voltage up to 690 V
• in 4-, 6-, 8- or 10-pole design
• designs: all in conformity with IEC standard
• types of cooling: self-ventilated, separately ventilated, without ventilator, heat exchanger.

AEM three-phase asynchronous motors offer electrical drive technology a broad spectrum in the medium to large power range with universal applicability, good operating values and high modifiability. They are the result of many years of experience in electrical engineering and cooperation with users.

Photo: Three-phase asynchronous motors, surface ventilated - squirrel cage rotor, IP 55, 2 to 12 poles - low voltage up to 1000 V, 200 - 1560 kW - medium voltage up to 6600 V, 132 - 1120 kW - slip ring rotor, IP 55, 4 to 12 poles - low voltage up to 1000 V, 200 - 1000 kW - medium voltage up to 6600 V, 110 - 1000 kW