Medium Duty Aluminum Commercial Door Closer for residential interior door

• Advanced craft: smooth running, no oil leakage, noiseless
• UL 228 Certification | UL 10C Certifire 3 hours fire rating
• Dual regulating valves control closing and latching speed

• D700 Series Sized 3 and 6 Medium Duty Aluminum Commercial Door Closers
• Reinforced type adjustable screw thread arm, suit for residential interior door
• Rack and pinion contained in high tensile precision cast aluminum body.
• Closing and latching speed controlled by dual regulating valves.
• Universal application, designed for all standard non-handed installations.
• Streamlined design permits installation on different applications without adaptor.
• High quality hydraulic fluid for high lubricity and smooth running.
• Power adjustment bracket on regular arms. (15% adjustment, ± 7.5%)
• Optional back check controlled by separate regulating valve.
• Available in Alum, Bronze, Gold, White, Black and Brown
• UL 228 certification, with 300,000+ life cycles
• UL 10 Certifire, up to 3 hours fire rating

► Long term cooperative suppliers of global top door closer brands

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

Other Specifications

• Item Weight: 2.36kg (5.2 lbs)
• Box Dimensions: 11-½ ”x 3-¼”x 3-¾ ”
• Screw/bolt Pattern: 8-3/16″ c-c width x 3/4″ c-c height
• Footprint H: 1-5/8” (41mm) W: 8-7/8” (225mm) Projection: 2-7/8” (73mm)

           ------------ 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.