Soft Residential Interior Door Closers D300 Auto Closing Max Width 950mm

Aluminum Door Closer D300 Auto Closing for Residential Interior Door

• Market leader model, national standard Grade 2
• Smooth operation, oil tight, no abnormal sound
• International Certification | Exporting since 2011

Dorrenhaus aluminum door closer model No. D300 is light and strong, basic painting

color of closer is silver, also called aluminum, which will not change for a long time.

Compared with other metal material, cost of aluminum alloy is relative low.

1. Aluminum Door Closer Auto Closing for Residential Interior Door Width 950mm

2. Product appearance: small dimension, soft with its body , temper force with grace

3. Whole process controlled beginning from open power to the final latching speed

5. Accord with regulation of QB/T 2698-2005 national standard, factory tested life

cycles 200,000, obtain certification for China Compulsory Product

6. Material: refined aluminum closer housing with steel rocker arm

7. Fuchs Lubricants especially for high quality door closer constant lubrication.

8. Two valves, one controls auto closing speed, another controls latching speed

9. Structure: rack and pinion type, with economical powder bearing

10. Non handed installation, package for Regular-Arm and Top-Jamb mountings

11. Suitable for low working frequency, for instance: machine room, warehouse etc.

► Reliable cooperative supplier of universal top door closer enterprises

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

* SPRING THRUST, EASY CLOSING: the casting steel rocker arm won’t interfere with

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

* GENTLE, HANDS-FREE CLOSING: let the door finish 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.