We know that we only thrive if we can easily guarantee our combined cost competiveness and high-quality advantageous at the same time for Larson Door Closer, Metal Door Closer, Outdoor Door Closer, Our highly specialized process eliminates the component failure and offers our customers unvarying quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
Buy Fire Door Controls Manufacturer – D500 SERIES EN2 to EN4 Overhead Door Closers – Dorrenhaus Detail:
Our value message is QUALITY and SERVICE
10 years of hardware manufacturing experience
Can customized any size and color
Compensation if late delivery or bad quality
Competitive prices
Experienced professionals
24 hours online after-sales service
OEM &ODM offered
We boast our own R & D, production, exports, and logistics team
Certification |
UL/C-UL Listed,UL10C 3 hours fire rating |
Spring Power |
Fixed EN2-EN4 |
Durability |
100,000 cycles above |
Function |
Adjustable Closing speed
Adjustable Latching speed |
Installation type |
Regular,Top Jamb,Parallel |
Max. Opening |
180 ° |
Arm Type |
Fixed or Detachable |
Mechanism Type |
Rack&Pinion |
Hand of door |
Non handed |
Materials of Body |
Die-cast Aluminum |
Max Door Width |
1100mm |
Max Door Weight |
80Kgs |
UL Listed |
CERTIFIRE Certificate NO.R27326 |
Backcheck |
NO |
Delayed Action |
NO |
Power Adjustment Method |
By using different templates |
Fitting Application |
Regular,Top Jamb,Parallel |
Body Construction |
Heat-treated pinion and steel piston |
Finish |
Silver, Brown, White,Black, Others upon request. |
Warranty |
5 Years |
Cross reference |
Falcon-SC90A |
Model # |
Spring power |
RecommendedDoor Weight |
RecommendedMax.Door Leaf Width (mm ) |
Notes |
D502 |
2# |
20-45 KGS |
850 mm |
Dorma arm optional |
D503 |
3# |
40-65 KGS |
950mm |
Dorma arm optional |
D504 |
4# |
60-85 KGS |
1100mm |
Dorma arm optional |
*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.
*Recommended for, but not limited to interior doors including:
Aftermarket: Office doors, Utility doors, Storage doors
Storefront: Retail/Outlet malls, Convenience stores, Warehouse doors
Product detail pictures:
Related Product Guide:
To get the stage of realizing dreams of our employees! To build a happier, more united and much more skilled crew! To reach a mutual benefit of our prospects, suppliers, the society and ourselves for Buy Fire Door Controls Manufacturer – D500 SERIES EN2 to EN4 Overhead Door Closers – Dorrenhaus , The product will supply to all over the world, such as: Slovakia, Liberia, Yemen, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, be sure to feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, make sure you feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.