Door closer is a mechanical device for closing a door after it being automatically or manually opened. Choosing a door closer should involve the consideration of a variety of criteria. Besides the door closer performance in the fire emergency, other criteria include the resistance to opening forces (for disabled or infirm use), health, safety, durability, risk of ligature and aesthetics. The key part of the door closers’ design is how to control the closing process and make sure the function parameters can be adjusted during the closing cycle.
Door closers can not only close the door but also protect the door and frame from damaging. They become increasingly vital in the modern architecture. Door closers are mainly used in the commercial, residential and public buildings. Oubao Technology provides door closers with optimized size for use with panic exit devices.
1.Owning full-automatic numerical control equipment and large-scale stored program control wheel blasting cleaning line, Oubao is the first manufacturer of door closers in China mainland since 1987;
2.Our door closers are successively approved by UL, CE, EN1154, ANSI156.4, SP, ETL, ITS, and TUV quality authentication;
3.Adopting Germany technical high grade aluminum alloy and advanced precision casting technology, the door closers manufactured by Oubao Technology are with high hardness, compacted metal texture, high wear resistance and long service time;
4.We use FUCHS hydraulic oil and oil ring imported from Germany, which greatly enhance the performance of door closers in the harsh environments with temperature ranges from subzero 30℃ to 60℃. And the oil leak rate is only 0.003%;
5.We can offer the door closers with new fashion design, variety style, multi color and the most competitive price for customers all over the world;
6.Our door closer products are in full ranges, which can be applied on different kinds of doors, including fire door, anti-theft door, wooden door, metal door, hotel loo door, guest room door, storage door, garage door and other doors for special uses.
1. 100 series concealed door closers/100 series invisible door closers;
2. 200 series overhead door closers;
3. 330 series economical door closers;
4. 500 series surface mounted door closers;
5. 600 series aluminum alloy door closers;
6. 700 series automatic door closers;
7. 5000 series fireproof door closers;
8. 8000 series multi-size door closers;
9. 9000 series heavy duty track arm door closers;
10. OB series cast iron door closers.
Packaging and Transportation:
1.One piece in an inner box, ten inner boxes in one carton;
2.Transport by sea or by air.