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 efficiency will be significantly reduced, thus improving the overall efficiency of the motor, to achieve super high efficiency (IE 4）and ultra-high （IE 5)level.
The current production capacity is 30,000 pieces per year. The products are widely used in ultra-efficient motor, new energy vehicle motor, shielding pump, spindle motor，lifting metallurgical machine and other fields.
Advantages of cast-copper rotor：
◆ Low resistivity
The electrical conductivity of the copper rotor is 1.5 times that of the aluminum rotor. Under the same induction voltage, the current in the cast copper rotor is greater than that in the cast aluminum rotor, and then the working efficiency is high. Using a copper rotor can use less materials to achieve the same power and efficiency
◆ High-thermal conductivity
The thermal conductivity of the cast copper rotor is 1.69 times that of the traditional cast aluminum rotor, which can effectively reduce the temperature rise of the rotor during operation and increase the working stability of the whole machine.
◆ High strength
The cast copper rotor of the same model is 2.2 times on the strength that of the cast aluminum rotor, so it has strong adaptability to the working environment and long service life.
◆ High current density
Current density increases, high quality density cast copper rotor can effectively improve the rotor torque, in some special industries cast copper rotor has irreplaceable applicability.
Advantages of cast-copper rotor motor
◆ Low loss, high efficiency
The cast copper rotor can significantly reduce electromagnetic losses of the rotor, thereby improving the overall efficiency of the motor.
◆ Small temperature rise, high reliability
While the loss of the motor is reduced, the heat energy converted by the loss is reduced, so that the temperature of the rotor and stator coil and the operating temperature is reduced.
◆ Small vibration and low noise
Lower temperature rise means that smaller fans can be used or even not used, which will reduce the loss due to friction and air resistance of the blades, 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 manufacture of electric motor, which can not only achieve high efficiency, but also pursue low cost, small size, light weight.
◆ Long service life
The temperature rise of the motor is reduced, extending the service life and reliability of the motor, and reduces the later maintenance cost.
