https://en.dorrenhaus.com
Dorrenhaus was originally founded in 1872, is a high-end Germany gating hardware brand. As early as the beginning of 1980’s, Dorrenhaus entered into Chinese market, and supplied numerous households in China with high quality hardware products.
On Oct. 10th, 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 experience in door closer industry.
Main Products：Hydraulic door closer, Heavy duty door closer, Concealed door closer, Fire rated door closer, UL listed door closer, CE certificated door closer, Economic door closer, American style door closer, European style door closer, Door closer parts.
Registered Capital: RMB 20mils. (equal to USD 3mils. )
Number of Employee: 205, in which 7 for R&D, 13 for quality control
Floor Space: 15000 M2
Now have 6 complete production lines with annual output of 1.2-1.5 mils sets.
Exported to more than 20 countries in North America, EU and South-east Asia.
Pass certification for EN ISO9001:2008 quality management system in 2014.
Main international and domestic certification and standard which our products passed:
1）American National Standard: ANSI 156.4 Grade 1, life cycle test of 2 mil. cycles
2）American UL228 & UL 10C for 3 hours fire testing
3）European Standard CE: EN1154, life cycle test of 500,000 cycles
4）European Standard CE: EN1634 fire testing
5）China National Standard: QB/T 2698-2005 Grade 1, life cycle test of 1 mil. cycles
6）China Compulsory Product Certification for fire rated door closer
D8016 UL Listed Heavy Duty Size Adjustable Commercial Door Closer for 20-150kg door
Door Closers
D300S UL Listed Small Fire Door Closer for 25-65kg door width 850-950mm
Door Closers
D4016 UL Listed Medium Heavy Duty Adjustable Door Closers for 20-150kg door
Door Closers
D503 Cost-effective UL listed Economic Aluminum Door Closer for 40-65kg door
Door Closers
D9016 UL Listed Extra Heavy Duty Adjustable Cast Iron Door Closers for 65-150kg door
Door Closers
Dorrenhaus was originally founded in 1872, is a high-end Germany gating hardware brand. As early as the beginning of 1980’s, Dorrenhaus entered into Chinese market, and supplied numerous households in China with high quality hardware products.
On Oct. 10th, 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 experience in door closer industry.
Main Products：Hydraulic door closer, Heavy duty door closer, Concealed door closer, Fire rated door closer, UL listed door closer, CE certificated door closer, Economic door closer, American style door closer, European style door closer, Door closer parts.
Registered Capital: RMB 20mils. (equal to USD 3mils. )
Number of Employee: 205, in which 7 for R&D, 13 for quality control
Floor Space: 15000 M2
Now have 6 complete production lines with annual output of 1.2-1.5 mils sets.
Exported to more than 20 countries in North America, EU and South-east Asia.
Pass certification for EN ISO9001:2008 quality management system in 2014.
Main international and domestic certification and standard which our products passed:
1）American National Standard: ANSI 156.4 Grade 1, life cycle test of 2 mil. cycles
2）American UL228 & UL 10C for 3 hours fire testing
3）European Standard CE: EN1154, life cycle test of 500,000 cycles
4）European Standard CE: EN1634 fire testing
5）China National Standard: QB/T 2698-2005 Grade 1, life cycle test of 1 mil. cycles
6）China Compulsory Product Certification for fire rated door closer
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. Broucher-1
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. Broucher-2
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. Broucher-3
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. Broucher-4
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. Broucher-5
Trademark Registration Certificate
UL Online Certifications Directory
CE Certificate of Constancy of Performance
ISO9001:2015 Certificate of Registration
ANSI Certificate of Compliance
CERTIFICATE FOR CHINA COMPULSORY PRODUCT CERTIFICATION
Management Theory:People Oriented, Continuous Innovation, Integrity & Harmonious Enterprise Mission:Safety & Energy saving, Improve living, Benefit mankind Company Spirit:Active Participation, Sincerely Consecrate, Constant Progress Vision & Goals:An advanced international hydraulic door closer manufacturing enterprise
Front View
Meeting Room
Office Passage
Sample Room
Material Shelf
Surface Treatment
Machine Tool
Infiltration
Assembling
Oil Filling
Ultrosonic Cleaning Line
Dust-free Painting Line
Store House
Final Packing
Machinery Workshop
Production Line
Testing Room
Life cycle testing system
Laboratory
UL Certified Testing Room
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