Hydraulic door closer hinge will be packed into Standard strong export caton box.
Inner box can be netural box, color box, gift box.
NINGBO / SHANGHAI
Shipped in 15 days after payment
3-in-1 Hydraulic Door Closer/Holder Hinge
When opening the door, the plunger inside will closing the door, the plunger will descend.
The shutting speed is adjusted by the return speed of hydraulic oil.
When opening the door, the torsion spring will be strengthened;
when closing the door, the torsion stress will be released and the shutting power is achieved.
When opening the door, insert the inner stopper into its holder according to the door angle (varied).
Speeds in different interval
Maintain static interval (80°-180°)
Door can atbitrary stop the space
Quickly closed interval (45°-80°)
The door can be quickly closed interval
Close slowly (15°-45°)
Slowly closed interval
Completely closed interval (0°-15°)
Speed slightly faster, completely closed interval
1. Technical performance: reliable and stable, durable working life, (50 million or more circles)
1) Special-made aluminum, high quality steel or stainless steel, advanced hydraulic oil (pour point -45 degrees, flash point 190 degrees) used; imported spring and superior rubber seals (150+ degrees heat -resistant )