Controlled Automatic Aluminum Door Closer Heavy Duty Self Closing American Style

Controlled Automatic Aluminum Door Closer Heavy Duty Self Closing American Style

• Even running, no oil leakage, noiseless
• Closing force 1-6 adjustable, Backcheck
• ANSI A156.4 - Grade 1 door closer body

* ADJUSTING ACCORDING TO YOUR REQUEST: final user will make their decision, Closing
force of size 1 to 6 is available for various door weight and width.
* SOFT, NO MANUAL CLOSING REQUIRED: let the door do the work, enjoy automatic closing
and latching, maintaining quiet and security.
* CERTIFICATION TRUSTABLE: ANSI A156.4 - Grade 1 is the supreme standard achievable
for Door Closers.The close body has actually surpassed a test to 2 million + cycles.
* SPRING FORWARD, EASY BACK: the commercial-grade arm won’t interfere with opening,
meanwhile shut doors gradually to allow for graceful extry and exit
* MEET YOUR REQUIREMENTS: The surface mount design and tri-pack options, allows you
to install in any high traffic area, supply full control at the same time.

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

Ω American style heavy duty aluminum door closer with hold open arm
Ω Precise cast aluminum closer body & forged steel hold open arm
Ω Self closing automatically, for regular arm and parallel arm mounting
Ω Adjustable back check available, delayed action function optional
Ω Normal opening angle: 90 degree, max. opening angle: 120 degree
Ω Adjustable latching & closing speed regulated by dual separate valves
Ω Adjusting spring force size 1 - 6 controlled by single adjusting valve

► Long-term cooperative manufacturer of universal first-rate door hardware brands

           ------------ 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.