Industrial Door Closer Certifire 3 Hours Fire Rated , UL Listed Backcheck Door Closer

Industrial Door Closer Certifire 3 Hours Fire Rated , UL Listed Backcheck Door Closer

• ANSI A156.4 standard, grade 1, 2 millions+ life cycles
• Precised cast iron body, strong enough for 150kg door
• Dorrenhaus - 7 year supplier to worldwide top brands

Ω With decorative plastic full cover, hand-made steel cover optional

Ω Standard backcheck adjustable, delayed action function optional

Ω Non-handed mounting, designed for all standard installation
Ω Adjustable closing & latching speed regulated by double separate screws
Ω Adjustable spring force #1-6, comply with requirements of ADA
Ω Extra heavy duty hydraulic closer for commercial and industrial doors
Ω Obtain UL 10C certifire, up to and including 3 hours fire rated

► Reliable cooperative partner of universal high-end door hardware enterprises

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

* TRUSTABLE CERTIFICATION: ANSI 156.4 - Grade 1 is the highest standard achievable

for Door Closers. This model is actually super passed 2 million+ cycles testing.
* SUIT YOUR NEEDS: Surface mounted design and full set of screw, allows you to install

in any high traffic area, supply full control at the same time.

* SPRING THRUST, EASE BACK: the commercial-grade arm will not impact opening, at

the same time closing door gradually to allow elegant entrance and exit
* Soft, no need to close by hand: the door will closer by itself, enjoy self-acting closing

and locking, keep quiet and safety.
* Adjusting according to your request: Let customers go their own pace, which size

should be used for different closing force: from size 1 to size 6.
* Compare to: LCN4040, LCN4041, Norton 9500, Sargent 351/281, Yale 4400,

Corbin-Rosswin DC8000, Hager 5100, Dorma8916, Stanley D4550, Cal-Royal CR441.

           ------------ 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.