The anti-pinch function of Automatic door is the concern of automatic door user and manufacturer.  Then We will introduce two main methods to realize the anti-pinch function of Automatic door sliding door. One method is to install anti-pinch photoelectric sensors, also known as photo eyes; The other method is to use a composite two in one sensor that combines door activation and anti-pinch safety guard to replace the traditional door sensor.

1 .Anti pinch photo eye sensor for Automatic sliding door

For automatic sliding doors, electric glass doors, automatic aluminum doors, or automatic frameless glass door systems, installing anti-pinch through beam photo eyes is an effective safety solution. The infrared signal emitted by the eyes on one side of the door frame reaches the receiver eyes on the other side, which will establish a straight light path. As long as the ray path is obstructed by children, pets, disabled individuals, or anyone standing in the passage, the safety beam sensor or light barrier will immediately detect the obstacle and prevent the door from closing, thereby preventing people or objects in the middle from entering and clamping. Due to the structural characteristics of automatic sliding doors, generally, mini type opposed sensors are a common choice.

PT12 series photo sensor is one compact design mini-shape photocell. A “Snap-In” mechanism and 45°outlet mode allows fast mounting in a mounting hole with 12.5-13.5 mm diameter; Mini shape, can be applied to the miniaturization of devices. PT12 series safety sensor is one popular model for the automatic sliding door owing to the compact shape and high cost cost-effectiveness.

PT12T series micro photoelectric sensor

2. Automation door activation and safety composite type sensor to realize automatic sliding door anti-pinch

Door activation and safety composite sensors are sensors that combine radar technology with motion detection function with infrared technology with safety protection function. The sensor's three-dimensional infrared light curtain can also provide effective protection for pedestrians. Compared to the traditional microwave radar plus infrared targeting scheme, the installation process is simple and fast, the infrared protection effect is very good, and the working stability is extremely high. The sensor can be applied to single or double automatic sliding doors, automatic arc doors, automatic folding doors, automatic double wing Revolving door, middle sliding doors and other door types.