Automatic Soft Closing Door Closer , American Commercial Overhead Door Closer

• ANSI Grade 1 product performance certification
• Skilled Craft: even running, oil tight, no noise
• Speed and closing force adjustable, fully controlled

Ω American style medium heavy duty commercial overhead door closer
Ω Standard adjustable back check available, hold open arm optional
Ω Precised casting aluminum closer body with reinforced steel arm
Ω Automatic closing & latching speed adjustable by two control screws
Ω No manual closing required, designed for all standard mounting
Ω Adjusting closing force #1-6, conform to the requirements of ADA
suitable for 20 - 150kg door weight, 850 - 1500mm door width
Ω Comply with ANSI 156.4 Grade 1 certification, 2 millions + life cycle
Ω Pass UL 10C certification, fire rated up to and including 3 hours
Ω All weather hydraulic fluid for high lubricity and constant lubrication
Ω Best for medium / high traffic area, such as an office or public restroom
Ω Fuchs Brand door closer lubricants for durable running & constant lubrication.

► 7 years cooperative supplier of universal top door hardware companies


Painting Color: - Aluminum, Gold, Bronze, White, Brown, Black

* SOFT CLOSING, NO NEED TO CLOSE MANUALLY: allow the door do the work, enjoy
self-acting closing and locking, keep quiet and safety.
* SPRING THRUST, EASY BACK: commercial-level swing arm won’t interfere with opening,
meanwhile shut doors gradually to allow for graceful entry and exit
* SIZE ADJUSTABLE AS PER YOUR REQUIREMENT: Let customers go their own pace.
Closing power of 6 levels is available for most door weight or width.
* CERTIFIABLY RELIABLE: ANSI 156.4 - Grade 1 is the supreme standard that can be
achieved by door closer. This one has actually surpassed a test to 2 million + cycles.
* SUIT YOUR NEEDS: surface mounted model and full sets of screw package, allow you to
install this over any high-traffic area, while providing complete control

           ------------ 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.