Reinforced Type Residential Door Closer，Medium Size 4 Door Closer With Hold Open

Reinforced Type Residential Door Closer , Medium Size 4 Door Closer With Hold Open

Dorrenhaus - 6-year supplier to top worldwide brands

Dorrenhaus D803T Medium Size Closer is designed for residential doors

weight 25-85kg, for all indoor architectural and commercial applications.

1. Core Advantage: medium size, Chinese type, comply with CE Standard

2. Adjustable back-check optional, DT-03 or DTWB hold open arm optional

3. Material: aluminum alloy housing, reinforced type adjustable hold open arm

4. Non handed installation for regular arm mounting and top Jamb mounting

5. Closer appearance: traditional Chinese design, steady and generous

6. Both latching and sweep speed are controlled by double speed adjust valves

7. For doors subject to medium levels of abuse, for residential applications

8. Overall process controlled since the opening of door till the latching

9. Hydraulic structure, needle bearing, rack and pinion dual high heat treatment

10. Manufactured according to EN1154 standard, body life cycles 5,000,000+

11. Medium size hydraulic residential door closer produced as per CE standard

12. Skilled Workmanship: even operation, no oil leakage, silent closing, no noise

► Trusty cooperative partner of world's high-end door closer brands

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

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

closing and latching, maintain quiet closing, door and hardware security.

* SPRING FORWARD, EASY CLOSING: the commercial-grade arm will not impact opening,

meanwhile shut doors gradually to allow for graceful extry and exit

* CONSUMMATE CRAFTSMANSHIP: smooth operation, oil tight, no abnormal sound

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