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1. Low noise: it adopts the design of fully silent guide rail and lifting wheel, so the noise is low. 2. Diversified functions: a variety of functions allow you to choose manual normally open, automatic fully open, automatic semi open, single pass and door locking status according to your needs. You can set and adjust the opening speed, closing speed, half opening, holding time, etc. at will. 3. Intelligent adjustment: automatically adjust the opening and closing speed according to the weight of the door leaf. 4. Computer controller: intelligent learning, automatic detection of door weight and width, automatic optimization of operation state; With the control panel, man-machine dialogue can be realized. 5. Hanger group. The module is equipped with a door wheel, which can move on the aluminum guide rail. Heavy duty door with a maximum weight of 100kg. 6. Motor and speed change device: DC brush motor with high efficiency, small volume and powerful effect is adopted. The gear box is decelerated by spiral gear with high transmission efficiency and low noise, and then the belt module is driven to improve the assembly combination of gearbox and motor body, so that the spreader can run smoothly on the whole power beam.