Detection of the leakage of flammable and toxic gasses used in petroleum and chemical engineering. The High quality wall-mounted gas monitor with factory price is fixed in areas such as workshops, warehouses and storage tanks for real-time monitoring of the concentration of flammable and toxic gasses. 

 

Automatic Sliding Door Operators

High quality door residential automatic door opener

Carton+Foam+Bubble Bag and Pallet

Safety & Operation Devices of High Speed PVC Roll up Door:

In consideration of operation safety for high speed PVC roll up door, we provide the photo cell, and wireless safety airbag device as the standard safety device; And to enrich the operation methods of the high speed door, various options are provided such as manual button, transmitter, control box, radar sensor and inductive loop device. Different styles of transparent window are also available for better vision view.

Varied Running Speed of High Speed PVC Roll up Door:

Running speed of High Speed PVC Roll up Door is adjustable: Opening speed from 0.80m/s to 2.0m/s, and closing speed from 0.6m/s to 1.0m/s. Running speed adjustment can be achieved through inverter inside the control box, t to meet the actual needs.

Driving System of High Speed PVC Roll up Door:

Driving system is the core part for the high speed roll up doors. For the motors, we can provide multiple options for different demands, brands including SEW, SIEMENS, SNMA, SEJ and Servo Motor; All the motors are provided with manual brake, that offers emergency operation under power failure. Furthermore, motor power can be applied based on the real door size, in supply voltage 220V single phase and 380V three phase.

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SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfarrs.com