Concealed Door closers
Are you troubled by the following questions?
Door closers Function
1). Automatic close door
2). Closing speed can be adjusted
3). Portion door closers have with positioning function
4). Fire door closers can't contain with positioning function
Scope of application
The door closing device is only applicable to a one-way flat door, and is generally not used for a door without frame glass.
Door closer used in home, office, hotel rooms, equipment rooms, warehouses, channels and other places.
This is the picture of Kaida’s door closer Structure and composition
In addition to the control valve of the limited adjustment, the other components of the door is not allowed to disassemble, so as to avoid the leakage of the hydraulic oil and lead to the loss of function caused by.
Kaida door closer and Inferior product contrast
|Product name||JUSTOR||Inferior product|
|Gear shaft||Alloy structure steel 20CrMNTI||Ordinary A3 steel|
|Seal ring||European import products||Domestic small plant products|
|Rack piston||Alloy structure steel 40Cr||Ordinary steel|
|Bearing||GCr15 Bearing steel||Ordinary steel|
|Spring||Alloy spring steel 60Si2Mn||Common spring steel|
|Shell||High strength die casting Aluminum alloy ADC||Ordinary aluminum alloy and Mixed waste|
|Hydraulic oil||Petro china HV46 Door closers Special oil||Recycling waste oil|
|Connecting rod part||Galvanized carbon steel、Paint||Paint|
Suitable for installation
Anti theft door, wooden door, aluminum door, steel door, fire door, hollow metal and various styles of door frame, door closer can be installed.
There are many ways to install the door closer, can adapt to a variety of complex installation environment, according to different circumstances choose the appropriate installation method.
Schematic diagram of the installation of non positioning door closer
Schematic diagram of the installation of the positioning door closer
Schematic diagram of the installation of hidden door closer
Our standardized packing has been approved by many foreign clients.
Zhaoqing kaida hardware and decoration Co.,Ltd., locates in Jinsheng Park, JinLi Town, Zhaoqing, Guangdong,China , was established in 1988, has developed into a professional door-control hardware enterprise with integrity of R&D, production, marketing and service team.