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China Ul Listed Door Closer Manufacturer – D71 SERIES CONCEALED CAM ACTION SIZE 3-6 DOOR CLOSERS – Dorrenhaus

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Our well-equipped facilities and great excellent command throughout all stages of generation enables us to guarantee total customer fulfillment for Yale Concealed Door Closer, Industrial Door Closer, Double Action Hydraulic Floor Spring, We look forward to receiving your enquires soon and hope to have the chance to work together with you inside the future. Welcome to take a look at our organization.
China Ul Listed Door Closer Manufacturer – D71 SERIES CONCEALED CAM ACTION SIZE 3-6 DOOR CLOSERS – Dorrenhaus Detail:

Certification CE Marked
Spring Power Adjustable Size 3-6
Durability 500,000 cycles above
Function Adjustable Closing speed
Adjustable Latching speed
Adjustable Backcheck
Installation type Concealedwith sliding trackarm 
Max. Opening 120 °
Pressure relief valve Yes
Mechanism Cam action
Hand of door Non handed
Materials of Body Die-Cast Iron
Materials of guiderailand Main Arm 6061, Steel
Materials of Spring 60Si2Mn
Backcheck NO
Hold open Yes
Delayed Action NO 
Bearing Full complement bearings for long durability
Application Suitable for interior wood, hollow metal, and aluminum doors and frames
Product Description Efficient cam and roller design
Finish Silver, Brown, White,Black, Others upon request.
Warranty 5 Years
Minimum door thickness Wooden door52mmMetal door48mm

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

Concealed door closers come in two main types: overhead concealed and under the floor concealed.

Concealed fire door closers provide the functionality of an overhead door closer but are fitted within the door leaf and frame. This type of installation is aesthetically pleasing and helps to reduce vandalism, as most of the door closer is hidden from sight.

Insert the retainer between the chain links closest to the cylinder face plate. Remove the anchor plate from the door frame and turn the anchor plate clockwise to increase the tension and anti- clockwise to decrease the tension. Re-fix the anchor plate to the door frame and remove the retainer.

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Recommended Recommended Max.
Model # Spring power Door Weight Door Leaf Width (mm ) Notes
D71 2-4 20-100 KGS 1100 mm Slide track arm

*Note:Open the door to the desired angle,and then tighten the set screws in the slider combination.If the HO function is not needed,loosen the fixing screws.

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*Rapid decrease in opening force makes doors easy to open, yet provides maximum closing force at the latch.
D71 can be inverted to install the closer body in the frame.Invisible when door is closed.

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China Ul Listed Door Closer Manufacturer –  D71 SERIES CONCEALED CAM ACTION  SIZE 3-6 DOOR CLOSERS – Dorrenhaus detail pictures


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With our loaded practical experience and thoughtful solutions, we now have been identified for a trusted provider for numerous intercontinental consumers for China Ul Listed Door Closer Manufacturer – D71 SERIES CONCEALED CAM ACTION SIZE 3-6 DOOR CLOSERS – Dorrenhaus , The product will supply to all over the world, such as: Swiss, Denver, British, Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound solutions with good logistics service and economical cost. Depending on this, our solutions are sold very well in the countries in Africa, the Mid-East and Southeast Asia.
  • The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Jessie from Malaysia - 2018.09.19 18:37
    The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Eleanore from Stuttgart - 2017.12.19 11:10
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