Electric rolling shutter:
Use a special motor to drive the central axis of the rolling shutter to rotate, reaching the rolling shutter switch, and automatically stop when the rotation reaches the upper and lower limits set by the motor.
The limit principle of electric rolling shutter door:
When we use or install the electric rolling shutter door, we need to have certain settings for its highest and lowest positions. If you know how to make ordinary rolling shutter doors, making electric rolling shutter doors is very simple. For the gear, it is to adjust the upper and lower limits, that is, to determine the highest position to which the rolling shutter door usually opens and the lowest position to which it drops. This is determined by adjusting the limiter on the rolling door machine. The principle of adjusting the limiter is to loosen the fastening screw on the limiter after installing the rolling shutter, press the up button on the button box of the rolling door machine, and open the rolling shutter door to the highest position (upper limit). Press the stop button to stop the rolling shutter door, then move the slider on the limiter so that it presses down the upper limit microswitch on the limiter, and then tighten the fastening screw, so that every time the rolling shutter door moves to this position It will stop when the rolling shutter door is opened. This is the highest position it usually reaches when the rolling shutter door is opened. In the same way, the lower limit position (the position where the rolling shutter door is usually closed) can be adjusted.