Residential UL Door Closer Cast Aluminum Alloy Applicable Weight 40 - 65kg

• Skilled Craft: smooth operation, oil tight, without noise
• Dorrenhaus - Focusing on manufacturing door closers
• UL 228 and UL 10C Certified, 200000+ tested life cycles

Ω No need to close manually, designed for all standard installation methods
Ω Adjusting Latching and Closing Speed Regulated by Dual Control Valves
Ω Certification of UL 10C, designed to be used with swinging type fire door
rated up to and including 3 hours fire testing
Ω Have been investigated by UL in accordance with the Standard(s) UL 228
and CAN/ULC-S133-16, with 200,000+ life cycles
Ω Back Check Optional, PA bracket optional for parallel arm mounting
Ω Overhead UL Listed Door Closer for Residential and Commercial Doors
Ω Precise Cast Aluminum Alloy Closer Body and Steel Screw Thread Arm
Ω Fixed Spring Force size 3, suitable for door width 950mm or 40-65kg door
Ω Temperature Applicable: -40℃ to 45 ℃, suitable for door in very cold area

► Stable cooperative supplier of universal well-known security enterprises

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

* GENTLE, NO MANUAL CLOSING REQUIRED: allow the door do the work, enjoy self-driven
closing and latching, maintain quiet and security
* SPRING THRUST, EASE BACK: commercial-level swing arm won’t interfere with opening,
at the same time closing door gradually to allow elegant entrance and exit

           ------------ 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.