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Buy Door Closer Spring Manufacturer – D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus

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As a way to present you with ease and enlarge our enterprise, we also have inspectors in QC Workforce and assure you our greatest support and solution for Panic Bar Door, Aluminium Door Hinges, Door Closer Components, We are anticipating to cooperate with you around the basis of mutual added benefits and common development. We are going to never disappoint you.
Buy Door Closer Spring 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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Product detail pictures:

Buy Door Closer Spring Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

Buy Door Closer Spring Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

Buy Door Closer Spring Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

Buy Door Closer Spring Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

Buy Door Closer Spring Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures

Buy Door Closer Spring Manufacturer –  D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus detail pictures


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Our advancement depends on the superior gear ,superb talents and consistently strengthened technology forces for Buy Door Closer Spring Manufacturer – D900 SERIES EN3-EN4 Overhead Door Closers With Link Arm – Dorrenhaus , The product will supply to all over the world, such as: Istanbul, Nigeria, Riyadh, With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in public placesand other industries. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!
  • The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.
    5 Stars By ron gravatt from Bangkok - 2018.09.29 13:24
    This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
    5 Stars By Fiona from Zimbabwe - 2017.10.23 10:29
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