Automatic pressure damper is generally divided into two types: pneumatic pressure and non pressure air door electric door

1, pneumatic damper includes: electric air open manual button to turn on the pure pneumatic damper and infrared remote control / light / dynamic automatic door

2, no electric pressure damper is: open the infrared / optical / electronic hydraulic remote control automatic door

No difference between the pneumatic pressure damper and electric non pressure air door:

1, pneumatic non pressure air door on the underground stable gas supply, and the air damper size should not be too large. Because the pressure is not stable, when opening is often relatively rapid, if there is no pressure damper size is too large, the cylinder is installed easily in the upper door pull deformation

2, hydraulic automatic door, the door is in underground without a stable source, add a set of hydraulic pump, hydraulic cylinder throttle, relatively slow, relatively stable open. The pneumatic damper belongs to the teaching of advanced hydraulic damper damper, and pneumatic damper high cost ratio.