Z2 Z4 series dedicated for common DC motor DC motor ZTP railway million-kilowatt motor ZSN cement rotary kiln. Motor and control is very easy to use, self starting, acceleration, brake, reverse, button, etc, can meet all kinds of operational requirements; the higher efficiency of the motor, and no smoke, smell, do not pollute the environment, and less noise. Due to its many advantages, so in industry, agriculture, transport, defence, business and household appliances, medical equipment and in a vast range of applications.