Buy Factory Price HD-4000 Fire Rated Back Check Function Door Closer for Commercial Doors Manufacturer and Factory

Factory Price HD-4000 Fire Rated Back Check Function Door Closer for Commercial Doors

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D30 SERIES Concealed Door Closers are CE Mark certified and are Light Duty Concealed EN3 Door Closers, Spring Power is Fixed EN3, Installation Type is Embedded, Max. Opening is 120°, Materials of guiderail and Main Arm is 6061, Steel ,Materials of Spring is 60Si2Mn, the number of continuous cycles is more than 100,000 times, it has the characteristics of easy installation, light and convenient, durable, etc., Suitable for interior wood, glass door and frames, we provide all customers with a 5-year quality warranty, for our Customers who need products can contact us through the inquiry send button below.

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With reliable quality process, good reputation and perfect customer service, the series of products produced by our company are exported to many countries and regions for Factory Price HD-4000 Fire Rated Back Check Function Door Closer for Commercial Doors, Our goods are widely used in many industrial fields. Our Corporation Services Division in good faith for that purpose of the quality of survival. All for customer company.
With reliable quality process, good reputation and perfect customer service, the series of products produced by our company are exported to many countries and regions for China Door Closer and Back Check Door Closer, Our company sticks to the principle of “high quality, reasonable price and timely delivery”. We sincerely hope to establish good cooperative relationships with our new and old business partners from all parts of the world. We hope to work with you and serve you with our excellent goods and services. Welcome to join us!

Certification	CE Marked
Spring Power	FixedEN3
Durability	100,000 cycles above
Function	Adjustable Closing speed Adjustable Latching speed
Installation type	Concealedwith sliding trackarm
Type	Embedded
Max. Opening	120 °
Pressure relief valve	Yes
Mechanism	Rack&Pinion
Hand of door	Non handed
Materials of Body	Die-Cast Aluminum
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, glass door and frames
Finish	Silver, Brown, White,Black, Others upon request.
Warranty	5 Years
Door width	45mm wooden door minimum40mm sash door minimum
Body thickness	Slim 32mm

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

Our concealed door closers are available in a variety of models, you can browse our website to find the door closer that suits you best, and we will provide you with the best customer service.

DETAIL (1)
DETAIL (2)

		Recommended	Recommended Max.
Model #	Spring power	Door Weight	Door Leaf Width (mm )	Notes
D30	3#	40-65 KGS	950 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.

DETAIL (3)

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.

ABout us1 (2)
About us (2)
About us (3)
With reliable quality process, good reputation and perfect customer service, the series of products produced by our company are exported to many countries and regions for Factory Price HD-4000 Fire Rated Back Check Function Door Closer for Commercial Doors, Our goods are widely used in many industrial fields. Our Corporation Services Division in good faith for that purpose of the quality of survival. All for customer company.
Factory Price China Door Closer and Back Check Door Closer, Our company sticks to the principle of “high quality, reasonable price and timely delivery”. We sincerely hope to establish good cooperative relationships with our new and old business partners from all parts of the world. We hope to work with you and serve you with our excellent goods and services. Welcome to join us!