Copper Rotors

Cast coper rotors for high effiency motors.

Cast copper rotor is a new type of motor rotor with pure copper as the conductive matrix, using cast
copper rotor instead of cast aluminum rotor, the total loss of the motor can be significantly reduced,
so as to improve the overall efficiency of the motor, to achieve
ultra-efficient (IE4 and IE5) level; At present, the specification of cast copper
rotor has reached more than 120 kinds.
Cast copper rotors are widely used in ultra-efficient motors, new energy
vehicles, high-speed spindle motors, shielded electric pumps, tower hoist
motors, motor remanufacturing and special purpose motors (aviation,
nuclear power) and other fields.

Advantages of cast copper ：
◆ Low loss, high efficiency:
The cast copper rotor can make the rotor loss of the motor significantly reduced, so as to improve the
overall efficiency of the motor;
◆ Temperature rise low, high reliability:
While the loss of the motor is reduced, the heat energy converted by the loss is reduced, thus, the coils
temperature of rotor and stator decrease, and the operating temperature lowers;
◆ Small vibration, low noise:
Temperature rise low means that smaller size fan can be used or even do not use the fan, which will reduce
the friction loss of the blade and the loss of air resistance, reduce the vibration noise, and further improve
the efficiency of the motor.
◆ Flexible design:
Cast copper rotor can provide a larger and more flexible design space for the design and manufacturing of
the motor, which can not only pursue high efficiency, but also can pursue low cost, small size, light weight,
or get balance among several factors.
◆ Long service life:
The working temperature rise of the motor is lowered, extending the service life and reliability of the motor,
and reducing the later maintenance costs.