Automatic Door operators Design of automatic door: Driving unit, control unit, transmissive or optional urgent unit and electromechanical locking device are assembled in supporting beam; driving unit acts on door leaf through delivering belt, and forces door leaf to move, while door leaf has assembled or separate-installing door coupler, could adjust length, width and height; the steel roll with journal and sliding guide manufactured by high-quality plastic makes automatic door operate extraordinarily smoothly and quietly. Applicability: Its applicability in building, storefront, bank, workshop, laboratory, hospital and other sorts of occasions indicates its advantage of ease, and realizes safety, convenience and reliability, and economical highly. Easy installation: As all components are assembled in supporting beam, installing a new door is just as easy as replacing a door; although the operation is very small and thin objectively, it is completely applicable to heavy load; at the time of installation, programming could be conducted to manipulator to meet with the special requirements of clients.Safety: Advanced safety device ensures the safety, safety reset and other safe functions of opening/closing of automatic door. In state of urgency, door will be opened automatically only with very little force. Freedom: Auto induction input and output Adjustable switching speed and time that door keeps open