150cm Overhead Door Closer

Aluminum Overhead Commercial Door Closer, Extra Heavy Duty Hydraulic Door Closer

• Skilled Craft: smooth running, no oil leakage and noise
• UL 10C & ANSI Grade 1 certificate, 2 millions life cycles
• Casting iron main body, long life usage, 3 years warranty

Ω Extra heavy duty aluminum door closer for commercial doors

Ω Cast iron body with forged steel arm, hold open optional

Ω Standard back-check adjustable, delayed action optional

Ω Universal application, Non-handed for various installation

Ω Closing & latching speed adjustable by dual valves

Ω Adjusting spring size 1-6, meet ADS standard and requirement

Ω ABS plastic cover available, metal cover optional

Ω Tested and certified against ANSI/BHMA A156.4 Grade 1

Ω UL 10C certification, up to 3 hours fire rating

► Long term cooperative manufacturer of world's top door closer company

Painting Color - Silver, Black, Brass, Brown, Bronze, White

* SPRING FORWARD, EASY BACK: commercial-level swing arm will not impact opening,

while closing doors slowly enough to allow graceful entrance and exit

* SKILLED WORKMANSHIP: even operation, oil tight, no noise

* SOFT, HANDS-FREE CLOSING: let the door finish work, enjoy self-acting closing
and locking, keep quiet and safety.

* SUIT YOUR NEEDS: Surface mounted design and full set of screw, allows you to install

in any high traffic area, supply full control at the same time.

* SIZE ADJUSTABLE AS PER YOUR REQUIREMENT: final user will make their decision,

which level should be adapted for closing power: from level 1 to level 6.

* CERTIFIABLY RELIABLE: ANSI 156.4 - Grade 1 is the supreme standard that can be

achieved by door closer. This model is actually super passed 2 million+ cycles testing.

           ------------ 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.