
Dkj-4100m Dkj-5100m Dkj-6100m on-off Type Part-Turn Electric Motorized Actuator. High Starting Torque Motor: Special servo motor with high starting torque, low rotary inertia, and good servo characteristics. Frequent Start Capability: Motor allows frequent starting, up to 1200 times per hour. Overtorque Protection: Accurately measures torque and locks operation if exceeding set range to protect valve and motor. Absolute Encoder Control: Enables automatic stroke setting without micro switches using an absolute encoder. 4-20mA Position Feedback: Provides constant current output with 750 ohm impedance for precise position indication. Signal Fault Locking: Stays in place or moves to emergency location if 4-20mA analog signal fault is detected. Dynamic Braking: Prevents valve overshoot caused by motor inertia using electric braking method.