ML-922 Big Door Closer/door closer hardware/access control accessories/door closers

Function

1.     Door can keep standstill when at 90 degree.

2.     Closing and locking speed can continue adjustment. The fastest closing time is 3 seconds from 90 degree to 0 degree. The slowly closing time is above 40 seconds.

3.     It will create resistance to avoid too much forces when open the door at above 65 degree. It can pretend to hit the wall. And the resistance can be adjustment.

4.     It will set 20 seconds to closing the door from 180°to 65° by factory, and it can be reduced to 1 second by the adjust screw.

5.     Closing forces is chosen as different size and weight of the door. Forces adjustable door closer can adjust to min. force, to reduce resistance to facilitate the old or disabilities.     

Standard Features

1.     Spray plastic cement and rocker arm, prevent from corrosion.

2.     Precise seal of fuel tank, prevent from leakage oil.

3.     Exquisite body container of casting aluminum alloy, prevent from oxidization with shine paint of three folds.

4.     Two hydraulic pressure valves, control absolutely the rate.

5.     High carton steel gear wheels, high carbon steel racks, treated by high frequency, little rack and smart circulate.

Technical Specifications

 ·  Door width: 710-1300mm