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Production Line

 

 

Six complete production lines with annual output of 1.5 to 2.0 million sets.

 

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 0

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 1

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 2

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 3

 

 

   Two complete door closer assembling lines, max. 12,000pcs per day. 

 

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 4

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 5

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 6

 

 

  Two automatic painting lines finish 8000 -10000pcs of door closer each day.

 

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 7

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 8

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 9

 

OEM/ODM

 

We are professional manufacturer of hydraulic door closer, and have been long term

 

cooperative supplier of world's top brand Allegion, Lawrence, Dorma for several years.

 

 

             1.   Manufacture door closer only, 1.5 to 2.0mils sets each year.

 

             2.   Long term and main supplier of world’s top brand.

 

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 0

 

 

             3.  UL and CE certification, passed life cycle test of 5 mil. cycles.

 

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 1

 

 

               4.  Passed European & China ISO9001:2015 QMS Certification.

 

               5.  Mainly for export market since foundation in August, 2011.

 

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 2

 

R&D

 

National New high-tech enterprise

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 0

 

UL certificate of Achievement

 

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd. factory production line 1

 

 

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