Medium Heavy Duty Gate Closer Controlled Open Angle 180 Degree for Steel Door

• ANSI/BHMA Grade 1, tested life cycles 2,000,000+
• Adjusting size 1 to 6, max. open angle 180 degree
• Smooth running, oil tight, no abnormal noise

1. Hydraulic Structure: needle bearing, rack and pinion with dual thermal treatment

2. For steel door in medium and high traffic area, such as a big office,

public restroom, hotel, station etc.

3. Sweep & latching speed adjusted by double single adjusting screws

4. Tri-package screws for any mounting: Regular Arm, Parallel Arm or Top Jamb

5. Medium Heavy-Duty Commercial Gate Closer Size and Speed Fully Controlled

6. Advantages: Amazon best-sell style, most popular in North American market

7. Full process controlled beginning from the opening ending at the latching :

Spring strength adjustable through range of #1 (2 pounds force) to #6 (14 pounds),

Min. opening force 20N, comply with requirements of American Disaster Association

8. Durable door closer lubricating oil for any climate running and constant lubrication.

9. Appearance: Traditional American style, streamlined design, soft in just

10. Material: cast aluminum closer shell, steel Screw Thread Arm and plastic cover

11. Conform to the requirements of UL 10C Compliant for positive pressure.

12. With adjustable back-check regulating valves

► 7 years cooperative supplier of global famous door closer brands

Closer Finishes - Silver, Gold, Bronze, White, Brown, Black

* RELIABLE CERTIFICATION: ANSI 156.4 - Grade 1 is the topmost achievable standard

for door closer. This one has actually surpassed a test to 2 million + cycles.

* SPRING THRUST, EASY BACK: the commercial-grade arm will not impact opening,

meanwhile shut doors gradually to allow for graceful entry and exit

* ADJUSTING ACCORDING TO YOUR REQUEST: let customer act at their own pace.

Closing power of 6 levels is available for most door weight or width.

* FITS WHERE YOU NEED IT: surface mounted model and full sets of screw package,

allows you to install over different occasion, while providing complete control

* GENTLE, NO NEED TO CLOSE MANUALLY: let the door do the work, enjoy automatic

shutdown and lock, maintaining quiet and safety.

           ------------ 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.