High torque twin-screw extruder principle: the use of D type, box transmission system of E type high torque deceleration, imported high precision gears, bearingswith oil immersion type of imported parts, reasonable combination of forced lubrication device, and a full set of unit interlock protection device, ensuring the reliable and stable operation of the host, took 75 double screw extruder forordinary yield only 450-700kg per hour, and high torque twin-screw extruder can reach 800-1200kg's output per hour. Unit of electrical control system main partsare imported components, high torque twin-screw extruder can be designed as: the main control unit, analog panel display, PLC system, PEC system etc