Jamb Mounted Automatic Hydraulic Door Closer Size 3 for Door Width Limit 950mm

Jamb Mounted Automatic Hydraulic Door Closer D703 Size 3 for Door Width 950mm

• No oil leakage, no abnormal noise, smooth operation
• Two speed adjustment for closing and latching
• Pass 3 hours fire test, cost-effective

Dorrenhaus Model No. D703 automatic hydraulic door closer is mainly designed
for commercial application, accompany with tri-pack screw sets and PA bracket,
suitable for regular arm, top jamb and parallel arm mounting.

Ω Automatic Hydraulic Door Closer for Residential & Commercial Doors
Ω Closing & Latching Speed Adjustable by dual separate control valves
Ω Heat treated rack and pinion in precision cast aluminum closer housing
Ω Streamlined design allows mounting on commercial area without adaptor.
Ω Fuchs brand lubricating oil for high lubricity and continuing lubrication.
Ω Non-handed Installation for regular arm and top jamb mounting
Ω Casting Aluminum Alloy Body with Steel Screw Thread Rocker Arm
Ω Fixed Spring Force Size 3, Suitable for Door Width Limit 950mm
Ω Adjustable Back Check Optional, PA Bracket Optional for Parallel Arm
Ω Meet standard of UL 10C, including 3 Hours Fire Rating
Ω Meet UL 228 Standard, with 200,000 plus life cycles

► Trusted cooperative supplier of global first-rate door control trade mark


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

* 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.

           ------------ 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.