Phone Number : 86-15888259987
WhatsApp : +8615888259987
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd.
Focusing on door closer manufacturing
CE and UL listed | Supplier to top brand
------------ 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
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.
Zhejiang Dorrenhaus Hardware Industry Co., Ltd. was incorporated in August 2011, and was restructured
into a Sino-foreign joint venture in May 2015. Our company is a manufacturing R&D enterprise specializing
in the production of medium and high-grade door closers. It is a science and technology enterprise in
Zhejiang Province and a top 100 enterprise in Cangnan County. It has 9 patents and was awarded as a
National New high-tech enterprise in 2017.
In 2014, Dorrenhaus obtained the German EN ISO9001:2008 quality management system certification, and
obtained the Chinese ISO 9001:2015 certification in 2017. The system has been operating effectively for
many years, the production process is standardized, and the product quality is controllable.
The company's existing 7 conventional models have obtained UL 228 certification, 5 models obtained
ANSI/BHMA A154.6 certification, 5 models obtained EN 1154 CE certification, and 8 models obtained China
compulsory product certification, which can meet different market and technical requirements. .
In 2018, our output value was more than 120 million yuan, and its export earned more than 12 million US
dollars. The company's current development trend is good, more than 70% of the products are sold to the
United States, Canada, the European Union and other countries and regions.
--------- Our Service ---------
Zhejiang Dorrenhaus Hardware Industry Co., Ltd.
1. FREE SAMPLE, FREIGHT COLLECT
Charges for new mould will be returned if order reachs agreed quantities.
2. CUSTOMIZED LOGO & PACKING
Silk-screen customer’s logo, customized carton and box is available for
orders of more than 2000pcs.
3. QUALITY ASSURANCE
Repair or exchange for door closer within 2-3 years guarantee period.
4. PROFESSIONAL RESPONSE
All inquiries, and or requests will be responsed within 24 working hours.
5. TIMELY DELIVERY
Deliver as agreed period, will compensate for later delivery of 1week.
Zhejiang Dorrenhaus Hardware Industry Co., Ltd. Was established in August 2011, the main personnel of the company's management team have more than 15 years of history in the door closer industry.
Dorrenhaus has nearly 200 production, management and technical personnel, in which management and technical personnel are of about 35%. The company has quality inspection department, trial production department, technical department, sales department, purchasing department, production department and other departments. The quality inspection department is responsible for the testing and inspection of the external materials and final products; trial production department is responsible for the production of samples and the trial production of new products; technical department is responsible for the product design and technical improvement, and there are 21 technicians in these three departments. The sales department is responsible for the development and sales of domestic and foreign markets. There are currently 9 sales personnel, of which 5 are responsible for export business.
The company's products are mainly sold to North American and European markets, with nearly 8 years of experience in export services.
Dorrenhaus has participated in many professional exhibitions at home and abroad, including the German Cologne International Hardware Exhibition and the North American Hardware Exhibition.
Leading global trade fair for the hardware industries March 01-04, 2020, Cologne, Germany Koelnmesse