180 Degree Fireproof Adjustable UL Listed Door Closer

Adjustable Backcheck UL Door Closer Heavy Duty Fire Rated For Metal Door

• Certification of ANSI Grade 1, 2 mils plus life cycles
• Even operation, no oil leakage and abnormal sound
• Most popular model in Amazon and USA market

Ω Certification of UL 10C, fire rated up to and including 3 hours

Ω Back check adjustable available, hold open & delayed action optional

Ω American style heavy duty UL listed closer for metal and wood door

Ω Designed for all standard mounting, no manual closing needed

Ω Adjustable latching & closing speed controlled by two regulating screws

Ω Meet requirements of ADA standard, adjusting spring strength #1-6

Ω Precise casting aluminum closer shell and reinforced steel tube arm

Ω Standard plastic ABS cover available, slim cover for optional

► Long-term supplier of global famous door hardware trade mark

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

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

meanwhile shut doors gradually to allow for graceful extry and exit

* GENTLE, NO MANUAL CLOSING: the door will close by itself, enjoy self-acting closing and

locking, keep quiet and safety.

* ADJUSTING ACCORDING TO YOUR REQUEST: final user will make their decision, You get

6 levels of closing force to meet different level of traffic.

* CERTIFIABLY TRUSTABLE: ANSI 156.4 - Grade 1 is the top standard which can be achieved

by Door Closers. This one has actually surpassed a test to 2 million + cycles.

* SUIT YOUR NEEDS: Surface mounted design and full set of screw, allows you to install over

different occasion, while providing complete control

* Compare to: Norton 8501, LCN1461, LawrenceLH816, Yale 3301, Corbin-Rosswin

DC3210, Hager 5200, Dorma8600, Stanley D3551, Arrow 5016N.

           ------------ 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.