The screw-driven shutter includes an electric motor, shutter, frame, and protective cover; it employs a three-stage reduction method, powered by spiral gearing, resulting in a higher output torque. The matching steel frame of the shutter overcomes uneven construction, reducing the overall noise and vibration of the unit.

Utilizing outdoor-duty long-time operation motors with a protection grade of >IP55. The stroke control mechanism operates on the decimal counter principle, ensuring a stroke accuracy of 0.5%. Torque protection control is achieved by the worm producing an axial displacement to trigger a microswitch, thereby protecting the electrical appliance. Operation and maintenance are straightforward, allowing for both on-site and remote control operations.