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China Self Closing Door Arm Suppliers – D70 SERIES CONCEALED CAM ACTION SIZE 2-4 DOOR CLOSERS – Dorrenhaus

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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for Commercial Panic Door Hardware Parts, Speedy Floor Spring, Fire Door Closers, We always welcome new and old customers presents us with valuable advice and proposals for cooperation, let us grow and develop together, and to contribute to our community and staff!
China Self Closing Door Arm Suppliers – D70 SERIES CONCEALED CAM ACTION SIZE 2-4 DOOR CLOSERS – Dorrenhaus Detail:

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

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.

Certification CE Marked
Spring Power Adjustable Size 2-4
Durability 500,000 cycles above
Function Adjustable Closing speed
Adjustable Latching speed
Installation type Concealedwith sliding trackarm
Max. Opening 120 °
Pressure relief valve Yes
Mechanism Cam action
Hand of door Non handed
Materials of Body Iron or Aluminum
Materials of guiderailand Main Arm 6061, Steel
Materials of Spring 60Si2Mn
Backcheck NO
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
Cross reference DORMA TS 96

DETAIL (1)
DETAIL (2)

Recommended Recommended Max.
Model # Spring power Door Weight Door Leaf Width (mm ) Notes
D70 2-4 20-100 KGS 1100 mm Slide track arm

*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.

DETAIL (3)

*Rapid decrease in opening force makes doors easy to open, yet provides maximum closing force at the latch.
D70 can be inverted to install the closer body in the frame.Invisible when door is closed.


Product detail pictures:

China Self Closing Door Arm Suppliers –  D70 SERIES CONCEALED CAM ACTION  SIZE 2-4 DOOR CLOSERS – Dorrenhaus detail pictures

China Self Closing Door Arm Suppliers –  D70 SERIES CONCEALED CAM ACTION  SIZE 2-4 DOOR CLOSERS – Dorrenhaus detail pictures

China Self Closing Door Arm Suppliers –  D70 SERIES CONCEALED CAM ACTION  SIZE 2-4 DOOR CLOSERS – Dorrenhaus detail pictures

China Self Closing Door Arm Suppliers –  D70 SERIES CONCEALED CAM ACTION  SIZE 2-4 DOOR CLOSERS – Dorrenhaus detail pictures

China Self Closing Door Arm Suppliers –  D70 SERIES CONCEALED CAM ACTION  SIZE 2-4 DOOR CLOSERS – Dorrenhaus detail pictures

China Self Closing Door Arm Suppliers –  D70 SERIES CONCEALED CAM ACTION  SIZE 2-4 DOOR CLOSERS – Dorrenhaus detail pictures


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  • The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
    5 Stars By Nina from San Francisco - 2018.07.26 16:51
    It is really lucky to meet such a good supplier, this is our most satisfied cooperation, I think we will work again!
    5 Stars By Elizabeth from South Africa - 2017.09.29 11:19
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