Medium Duty Automatic Hydraulic Door Closer D404 Top Jamb Mounting Slow Close

Medium Duty Automatic Hydraulic Door Closer D404 Top Jamb Mounting Slow Close

Dorrenhaus - Focusing on manufacturing door closers

Dorrenhaus self-closing hydraulic door closer model D404 is of moderate

dimension, medium duty, middle grade quality and cost level. Most of

the closer characteristic is of middling. It's one of the popular model

in Chinese domestic building hardware distributor.

1. Material: precise cast aluminum closer shell with steel screw thread swing arm

2. Full process controlled from the opening power to the lasting latching speed

3. Hydraulic door check fluid for any climatic operation and constant lubrication

4. Selling Point: Most Popular Model in domestic market, soft and slow close

5. Structure: Hydraulic, powder bearing, pinion and rack type

6. Automatic sweep & latching speed adjusted by double adjusting screw

7. Overhead Hydraulic Door Closer, Fixed size 4 for door width 1100mm

8. Appearance: square shape, moderate dimension, elegance and graceful

9. Non handed installation, suitable for Regular Arm, Top Jamb mounting

10. Grade 3 for light traffic applications, such as guest rooms or storage rooms.

► Trusted cooperative manufacturer of international top security companies

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

* SPRING THRUST, EASY BACK: steel screw thread swing arm will not impact opening,

and close the door slow enough to allow for elegant entry and exit

* ADVANCED WORKMANSHIP: even operating, oil tight, without noise

* GENTLE, NO NEED TO CLOSE MANUALLY: let the door do the work, enjoy self-driven

closing and latching, maintain 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.