The accessories of central motor:

1. Lock;

2. Roller wheel;

Features of central motor:

1. You could match wth received power for controller. Then use it when blackout.

2. When the controller is broken you can use the clutch lock box (with line) to open the door manually.

Spring balance roller door motor also called fast speed gate opener or australian style gate opener or central motor. It uses DC motor with DC 24V power supplying. And with reserved power controller, alarm system and infrared sensor for different customers' requirements.