Parallel Arm Automatic Exterior Door Closer Top Jamb Mounting Life Cycles 2,000,000

Parallel Arm Automatic Exterior Door Closers Top Jamb Mounting Life Cycles 2,000,000

• BHMA/ANSI A.156.4 Grade 1 / UL 10C Certification
• No oil leakage, no abnormal noise, stable operation
• Max. 5 mils life cycles, most popular model in USA

1. UL Listed Automatic Exterior Door Closer Meet Professional Standards, Grade 1
2. Heavy-Duty Full Size (1-6) Closer for High traffic such as Commercial Buildings
3. Standard Adjustable Back-Check Function available, controlled by single valves
4. ABS Plastic Cover available. (Metal Plastic or Slim Plastic Cover Optional)
5. Reliable Fuchs lubricating oil for smooth operation and constant lubrication
6. Adjustable Delayed Action Function Optional, Hold Open Arm Alternative
7. Certification of ANSI 156.4 Grade 1, with 2 mils plus life cycles
UL Listed, meet Standards of UBC7-2-1997 and UL10C fire rated testing
8. Tri-pack suitable for parallel arm, regular arm and top jamb mounting.
9. Hydraulic type, needle bearing, dual heat treated rack and pinion
10. Core Competitive Advantage: Amazon Hot-sale Model, Popular Model
11. Product Appearance: Traditional American Design, Elegance and Graceful
12. Automatic closing and latching speed regulated by dual adjusting valves

► Long-term cooperative vendors of global famous door closer enterprises​


Closer Color - Aluminum, Bronze, Gold, Brown, Black, White

* FITS WHERE YOU NEED IT: Surface mounted design and full set of screw, allow you to
install at any high-traffic area, supply full control at the same time.
* SKILLED WORKMANSHIP: smooth running, oil tight, no abnormal sound
* ADJUSTING ACCORDING TO YOUR REQUEST: final user will make their decision, You
get 6 levels of closing force to meet different level of traffic.
* SPRING THRUST, EASY CLOSING: commercial-level swing arm will not impact opening,
and close the door slow enough to allow for elegant entry and exit
* TRUSTABLE CERTIFICATION: ANSI 156.4 - Grade 1 is the highest standard achievable
for Door Closers. In fact the life cycle of this model is much more than 2 millions.
* GENTLE, HANDS-FREE CLOSING: let the door finish work, enjoy automatic closing and
latching, maintaining quiet and security.

------------ 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.