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Automatic Heavy Duty Fire Door Closer

Company Infomation
Zhejiang Dorrenhaus Hardware Industrial Co., Ltd
Free Membership.
Contact details
Online Talk :
Contact :Intar Lin (Sales Manager , Mr.)
Tel Phone :86-577-64290420
Mobile :
Fax :86-577-68723168
Country/Region :ZheJiang - China (Mainland)
Address :350-1 Guilan Road, Qiaodun, Cangnan, Zhejiang
Zip/Postal code :325800
Website :http://dorrenhaus.global-trade-center

Automatic Heavy Duty Fire Door Closer

  • Automatic Heavy Duty Fire Door Closer
    • Automatic Heavy Duty Fire Door Closer
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    Category :Hardware > Door Closers
    Keyword :Automatic Door Closer
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    Last Updated(GMT) :17 Jul, 2019

Product Detailed Description

* Model No. D4000
* Traditional American style medium & heavy duty closer for commercial doors
* Precise cast aluminum body & forged steel arm, hold open arm optional
* Adjustable closing & latching speed
* Adjustable back check, delayed action & hold open function optional
* Non-handed installation
* Fixed spring force #5 & #6; adjustable spring force #1-6
* ANSI 156.4 certification 2 millions life cycle
* UL 10C certification 3 hours fire rating

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Company Detailed

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.

Number of Employee: 205, in which 7 for R&D, 13 for quality control.
Floor Space: 12500 M2, Registered Capital: RMB 20mils. (equal to USD 3mils. ) 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 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

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