... 2.high efficient, saving energy 3.low noise 4.small vibration 5.convenient maintainability These serial electric motors may be applied to ... machine in mine, machine industry, petroleum chemistry industry, electric power plant etc.3. drive large moment of inertia facilities, as blower, coal ... grinder, rolling mill, winder, cracker, belt conveyer etc. Compact type 3 Phase Cage Induction Motor