Door Width: 500-1000mm
Door Weight: 25-45kg

1. Available for: Metal, steel and wooden doors
2. Features: Clam and quiet when be used.
A: Body: Adopts quality aluminium alloy one-time extrusion forming, with dense material and high strength, with surface spray coating treatment, with delicate lock.
B: Piston: The material is 45#steel, with surface carburization treatment for high strength wear-resistance. At door opening, the gear shaft drives it to compress the spring and reserve the force for door closer, At door closing, under the resistance of hydraulic oil, it slows down the spring extension and realizes speed variation, or buffering in other word.
C: Gear shaft: The material is 45#steel, with surface carburization treatment for high strength and wearesistance.
D: Spring: Adopts quality spring steel, with less than 1mm shortening after 300, 00 times squeezing. At door opening, the spring is compressed, at door closing, the spring is stretches to produce door closing force to closer the door.
E: Swing arm: The matetial is cold-rolled sheet. Its main function is to transmit the door pushing force to the piston and to the spring, and then transform the spring force into door closing force to realize door closing.

Ouding Door Closer Has Different Advanced Function For Your Reference

1. Two stages speed controlled range: 180degree-15degee., latching speed: 15degree-0degree
2.90degree hold-open function: Door can keep standstill when door is open at 90degree.
3. Closing and latching continous adjustment: The fasting closing in3 seconds from 90degrees slowly door closing above 40s
4. Buffer function: Door closer will creat resistance to avoid too much force, when open the door and hit the way by closing quickly&resistance can be adjustment.
5. Delayed closing function: Between 180degree-65degree, present by factory is 20s, which can be reduced to 1s to facilitate the olds& disabilities
6. Function of closing forces adjustment: Closing forces is decided by different size & weight of door, force adjustable door closer can adjust it to min. Force resistance and facilitate the olds & disabulities.