Electric device according to the motion method is divided into: angle stroke, straight stroke and multi - rotation. It is a driving device that can provide a straight line or rotary motion, which uses some kind of drive energy and works under some control signal. 

Performance characteristics
1. Strong function: intelligent, proportional, switch type, all kinds of signal output type should be as much as possible. 
2. Small size: the volume is only about 35 % of the same kind of products. 
3. Light and pleasant: the weight is only about 30 % of the same kind of products. 
4. Reliable performance: the key parts such as bearing teeth and electrical components are imported famous brand products. 
5. Beautiful and generous: aluminum alloy die casting shell, fine smooth, and can reduce electromagnetic interference. 
6. Precision wear - resistance: the worm wheel output shaft is integrated with special aluminum alloy forging, high strength and good wear resistance. 
7. The back difference is very small: the worm output shaft is integrated, and the clearance of the key coupling is avoided, and the transmission precision is high. 
8. Safety assurance: through the 1500 v withstand voltage test, class f insulation motor, safety and security. 
9. Simple matching: single - phase power supply, simple external circuit, and 380v, DC power supply. 
10. Easy to use: no refueling, no check, waterproof rust prevention, arbitrary angle installation. 
11. Protection device: double limit, overheat protection, overload protection ( optional ). 
12. Speed: total travel time 5 seconds, 10 seconds, 15 seconds, 30 seconds, 60 seconds, 100 seconds, etc. 
13. Anti - corrosion and rust prevention: the brackets, couplings and screws are made of stainless steel. 
14. Intelligent CNC: digital setting, digital setting, high precision, self - diagnosis, multi - energy. 
15. Integration: the intelligent control module is highly integrated in the electric device body, without external locator and so on. 

The IA and IM series electric devices produced by China Zhejiang rottok electric appliance are the world's top intelligent products. Advanced super digital integration chip, professional digital moment sensor and digital displacement sensor, full Chinese menu operation and display, and electromechanical integration of the structure design, resulting in its perfect function, excellent performance, lightweight and beautiful, simple debugging, easy to operate. With the valve matching, the implementation unit is used in the automatic control system such as power station, petroleum, iron and steel, chemical industry, oil pipeline and sewage treatment. it can not only meet the frequent regulation control, but also meet the requirements of discontinuous control.