Size Adjusting Residential Door Closer , Hydraulic 180 Degree Door Closer CE Listed

Size Adjusting Residential Door Closer , Hydraulic 180 Degree Door Closer CE Listed

• Closing force size 2 to 4 adjustable by template
• Dorrenhaus - CE - certified | Export since 2011
• Even operation, oil tight, no abnormal sound

Surface mounted closer D803 are installed on the surface of the door and frame,
and are highly visible. They are the more economical for the two options and also
the easiest way for installation.

Ω CE listed medium duty hydraulic residential 180 degree door closer
Ω Precise casting aluminum closer housing with reinforced steel Dorma arm
Ω Closing & latching speed regulated by two separate controlling valves
Ω Adjustable back check function and hold open arm is for optional
Ω Fixed spring size 3, adjusting closing force size 2-4 by template and
towards of bracket, applicable for max. 1100mm door width or 85kg weight
Ω Usually opening angle between 90º and 105º, max open angle 180 degree
Ω Design for any standard installation methods, no manual closing required
Ω First i.e. latest BS EN1154 certification in Dec. 2018, 500,000 + life cycle
Ω BS EN1634 (Flammability Testing), fire rated up to and including 3 hours

► 7 years cooperative vendors of international first-rate door control companies


Finishes - Aluminum, Gold, Brown, White, Bronze, Black

* SOFT, HANDS-FREE CLOSING: let the door finish work, enjoy self-driven closing and
latching, maintain quiet and security.
* SPRING THRUST, EASY CLOSING: commercial-level swing arm will not impact opening,
meanwhile shut doors gradually to allow for graceful extry and exit

           ------------ Our Advantages ------------

                     1.   Only produce door closer, annual output 1.5-2.0mils pcs.

                     2.   UL & CE certification, max. Life cycle test of 5 mil. Cycles.

                     3.   Pass European & China ISO9001:2015 QMS Certification.

                     4.   Mainly for export market since foundation in October, 2011.

                     5.   Long term cooperative supplier of world’s top security brands.

A High-end Germany Gating Hardware Brand

Originally founded in 1872, Dorrenhaus is a high-end Germany gating hardware brand. At the beginning of 1980's,

Dorrenhaus entered into Chinese market, and supplied numerous households in China with high quality hardware products.

On October 10, 2011, Dorrenhaus's door closer manufacturing base in China - Zhejiang Dorrenhaus Hardware Industry Co.

Ltd was formally founded. All members of management team have more than 15 years of experience in door closer industry.

Marketing Under Dorrenhaus and DORHAUS Brand

In 2017, our new trademark - DORHAUS was registered. We have $3 million registered capital. Our main products include

hydraulic door closers, automatic door closers, concealed door closers, commercial door closers, fire door closers, auto door

closers, sliding door closers, heavy duty door closers, overhead door closers, UL-listed door closers and door closer parts.

We have 205 total number of employees, which includes seven R&D staff and 13 quality control staff in our

15,000-square-meter factory.

Exporting Products Worldwide

Now, we have six complete production lines with annual output of 1.5 to 2.0 million sets. We export our products to more than

20 countries in North America, Europe, Russia, the Middle East and Southeast Asia. We passed the certification for EN ISO

9001:2008 quality management system in 2014, and ISO9001:2015 in 2017 respectively.

Our products passed many international and domestic certification and standard, such as:

American National Standard: ANSI 156.4 Grade 1, life cycle test of 2mil cycles

American UL228 and UL 10C for 3 hours fire testing

European Standard CE: EN1154, life cycle test of 500,000 cycles

European Standard CE: EN1634 fire testing

China National Standard: QB/T 2698-2005 Grade 1, life cycle test of 1 mil. cycles

China Compulsory Product Certification for fire rated door closer

Cooperate with Us Today

For more detailed information regarding our business, contact us today.