Metal Commercial Hydraulic Door Closer Hold Open Arm Width Range 850-1500mm

Metal Commercial Hydraulic Door Closer Hold Open Arm Width Range 850-1500mm

• Consummate Craft: smooth running, oil tight and noiseless
• Adjusting closing & latching speed by dual regulating screws
• Long term cooperative supplier of world's top security brand

Ω Commercial hydraulic door closer, medium / heavy duty, with hold open arm
Ω Closer body meet ANSI 156.4 Grade 1, factory tested life cycles of 2 mils plus
Ω Universal application for regular, parallel and top jamb installation
Ω Adjustable spring power size 1 - 6 , width range 850-1500mm
Ω Precised cast aluminum cylinder and forged steel arm
Ω Standard plastic cover, handed metal cover optional
Ω Standard adjustable back-check valve
Ω Needle bearing, heat treated pinion

► Trusty cooperative partner of world's high-end door hardware brands


Finishes - Painted: Silver, White, Black, Gold, Bronze, Brown

* 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.
* SOFT, NO NEED TO CLOSE BY HAND: the door will closer by itself, enjoy self-acting
closing and locking, keep quiet and safety.
* SPRING THRUST, EASY CLOSING: commercial-level swing arm will not impact opening,
meanwhile shut doors gradually to allow for graceful entry and exit
* ADJUSTABLE TO YOUR NEEDS: Let customers go their own pace. You get 6 levels of
closing force to meet different level of traffic.
* 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.