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China Door Closing Mechanism Manufacturer – D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus

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We have been commitment to supply the competitive price ,excellent products and solutions high-quality, at the same time as fast delivery for Ul Door Closer Body, Mortise Front Door Lock, Automatic Interior Door Closer, We sincerely hope to provide you and your company with a great start. If there is anything we will do to suit your needs, we shall be additional than pleased to do so. Welcome to our manufacturing facility for stop by.
China Door Closing Mechanism Manufacturer – D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus Detail:

Recommended for interior or exterior doors including:
• Offices
• Banks
• Retail Malls
• Hotels
• Health Care
• Clinics

Dorrenhaus comprises R&D center, testing laboratory,manufacturing center and sales dept, has over 10 in-service engineers and research specialists. Since it was founded, developing High performance door control products has always been the objective of Dorrenhaus. Dorrenhaus people have continuously tried to improve product quality, introducing oversea high and new technical equipment,giving our company good technical capabilities. Moreover, all of our R&D engineers has more than 20 years experience in door closer industry.

Certification CE Marked
Spring Power EN 3/4
Durability 500,000 cycles above
Function Adjustable Closing speed
Adjustable Latching speed
Hold Open Optional<Sliding Track arm Optional
Installation type Door leaf installation, Top Jamb installation, Parallel arm installation
Max. Opening 18
Suitability for fire protection doors Yes
Mechanism Rack & Pinion
Hand of door Non handed
Materials of Body Die-cast <Aluminum
Materials of Arm< Steel<
Backcheck< Yes<
Delayed ActionProduct Description< NO<Closing speed can be individually adjusted<
Hydraulic latching action which accelerates the door shortly before it is closed
Application Suitable for wooden door, metal door, and fire rated door
Leaf width (max.) 1100mm<
Leaf weight(max.) 85KGS<
Finish Silver, Brown, White,Black, Others upon request.
Warranty 5 Years

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Model # Spring power RecommendedDoor Weight RecommendedMax.Door Leaf Width (mm ) Notes
D903 3# 40-65KGS 950mm Sliding track arm optional
D904 4# 60-85 KGS 1100 mm Sliding track arm optional

*In case of unusually high or heavy doors, windy or draughty conditions, or special installations, a large power size of door closer should be used.

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China Door Closing Mechanism Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

China Door Closing Mechanism Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

China Door Closing Mechanism Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

China Door Closing Mechanism Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

China Door Closing Mechanism Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

China Door Closing Mechanism Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures


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Having a positive and progressive attitude to customer's fascination, our organization constantly improves our solution high-quality to fulfill the requirements of shoppers and further focuses on safety, reliability, environmental prerequisites, and innovation of China Door Closing Mechanism Manufacturer – D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus , The product will supply to all over the world, such as: Lithuania, Lesotho, Chile, With the highest standards of product quality and service, our products have been exported to more than 25 countries like the USA, CANADA, GERMANY, FRANCE, UAE, Malaysia and so on.We are very pleased to serve customers from all over the world!
  • The company has a good reputation in this industry, and finally it tured out that choose them is a good choice.
    5 Stars By Caroline from Guinea - 2018.09.21 11:44
    A nice supplier in this industry, after a detail and careful discussion, we reached a consensus agreement. Hope that we cooperate smoothly.
    5 Stars By Nancy from Albania - 2017.03.08 14:45
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