Parallel Arm Cast Iron Door Closer , Hold Open Arm Extra Heavy Duty Door Closer

Parallel Arm Cast Iron Door Closer , Hold Open Arm Extra Heavy Duty Door Closer

• EXQUISTIE CRAFT: even operation, oil tight, noiseless
• Dorrenhaus - 7 year's supplier of World's famous brand
• Precise cast iron body & forged steel HO cushion arm

Ω American style extra heavy duty cast steel door closer with hold open arm

Ω Dual regulating valves controls adjustable closing & latching speed

Ω Opening angle: 120 degree, or other angle less than 120 while more than 90

Ω Non-handed installation, mainly designed for parallel arm mounting

Ω Adjusting spring force through 1 to 6, controlled by single regulating shaft

Ω Product Appearance: American design, Steady and generous

Ω Reliable closer fluid for all climate operation and continuing lubricating

Ω Standard back-check adjusted by back-check intensity regulating valve,

optional delayed-action adjusted by delayed action closing regulating valve

► 7 years cooperative vendors of international first-rate door hardware brands

Finishes: Aluminum Gold White Bronze Black Brown

* GENTLE, HANDS-FREE CLOSING: let the door finish work, enjoy automatic shutdown

and lock, maintaining quiet and safety.

* SPRING THRUST, EASY CLOSING: the commercial-grade arm won’t interfere with

opening, meanwhile shut doors gradually to allow for graceful entry and exit

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

over different occasion, while providing complete control

* SIZE ADJUSTABLE AS PER YOUR REQUIREMENT: let customer act at their own pace.

You get 6 levels of closing force to meet different level of traffic.

           ------------ 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.