Body Cast Thickness only 28mm Concealed Door Closer A-083 - A-083

1. Features:

1. Delay section 180-40 degrees, closing speed section 40-15 degrees and latching speed section 15-0 degree controlled by independent hydraulic pressure valves.

2. Fine oil seal to prevent leakage.

3. High quality casting aluminum alloy body coated with three layers of glossy paint prevented from oxygenation.

4. The high-carbon steel geer shaft works smartly with least tranfigure through high frequency of hardening and tempering.

5. Well paintied moving arm against erodent.

6. Self closing with/without hold-open feature; non-handed.

7. Passed the fire-testing by National Center for Quality Supervision and Testing of Fire Building Materials.

8. Applicable for wood door,steel door,fire door,etc.

9. Colour options: Silver, black, gold,white. other options are available upon request.

10. OEM available.

11. Opptional materials: mirror,satin,titanium.

12. On time in full.

13. Installation types: vertical, parallell, sliding-rail on the door.

14. Self quality test for oil(temperature test), spring & operation of door closer(durability test)

15. Test cycles: at least 300000; durability: at least 2 years; with better accessories, more test cycles passed and longer durability

2. Function Diagram:

3. Colour RAL to choose:

4. Installation Diagram:

5. Factory information: