type:M600D-6 roller shutter drive motor,single-plase,chain-device,Max load is 600kg,AC motor, M600D-6 roller shutter drive motorName:Chain-device Series Roller Shutter MotorContent:1. Subitable for all kinds of roller shuter door2. Reliable performance,Stable and safet3. Location accuracy less than 1.5 centimeter4. Chain drive: could lock chain wheel to prevent the door slipping when the chain ...