Fire Concealed Automatic Door Closer Size 3 Closing Force Sliding Arm Door Thick 45mm

Fire Concealed Automatic Door Closer Size 3 Closing Force Sliding Arm Door Thick 45mm

• Skilled Craft: smooth running, oil tight, no abnormal sound
• Large closing force size 3, optional for max. 80kg door
• Two steps speed adjustment of closing and latching

Dorrenhaus concealed automatic door closer model D30, applicable for door width

950mm, door thickness of 45mm and above, concealed fitting - best for reputable

projects so as to avoid losses resulted from breach of contract.

Ω Automatic closing and latching speed adjustable by double control valves

Ω Accord with standard of UL 228 Certification, 200,000+ life cycles tested

Ω Precise cast aluminum alloy closer body with anodized aluminum sliding

track arm, hold open unit optional, which can be removed from rail easily

Ω Design for non-handed installation, Max opening angle: 150 degree

Ω Fuchs high grade hydraulic fluid for all weather operation and lubrication

Ω Closing power size 3, for max. door width 950mm or door weight 65kg

Ω Slim body with 32mm thickness, min. thickness of 45mm for wooden door

Ω Light duty concealed automatic fire door closer mainly for commercial use

Ω Meet the requirements of UL 10C Certification, up to 3 Hours Fire Rating

► 7 years cooperative manufacturer of global well-known security trade mark

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

* SPRING FORWARD, EASE BACK: The commercial-grade arm won’t interfere with opening

while closing doors slowly enough to allow graceful entrance and exit

* GENTLE, HANDS-FREE CLOSING: Let the door do the 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.