Cast Iron Silent Door Closer , Self Closing Door Closer For 850 - 1500mm Door

Cast Iron Silent Door Closer , Self Closing Door Closer For 850 - 1500mm Door

• Advanced Craft: even running, oil tight, noiseless
• Casting iron closer body with forged steel arm
• Stronger closer housing and largest closing force

Ω Extra heavy duty silent door closer for commercial grade doors

Ω Universal application, Non-handed for various installation

Ω Standard back-check adjustable, delayed action optional

Ω Tested and certified against ANSI/BHMA A156.4 Grade 1

Ω ABS plastic cover available, hand-made metal cover optional

Ω Self closing and latching speed adjustable by dual regulating valves

Ω UL 10C certification, up to 3 hours fire rating for fire door

Ω Adjusting spring size 1-6, suitable for 850 - 1500mm width door, i.e.

for 25 - 150kg door weight, meet requirement of ADA standard

► Stable cooperative supplier of international famous security companies

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

* SPRING FORWARD, EASY CLOSING: commercial-level swing arm won’t interfere with

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

* SOFT, NO NEED TO CLOSE BY HAND: the door will closer by itself, enjoy automatic

shutdown and lock, maintaining quiet and safety.

* FITS WHERE YOU NEED IT: The surface mount design and tri pack options, allow you to

install this over any high-traffic area, while providing complete control

* SIZE ADJUSTABLE AS PER YOUR REQUIREMENT: Let customers go their own pace.

Closing force of size 1 to 6 is available for various door weight and width.

* RELIABLE CERTIFICATION: ANSI 156.4 - Grade 1 is the topmost achievable standard for

door closer. In fact the life cycle of this model is much more than 2 millions.

           ------------ 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.