Skip to content Overhead Door Closer
DT-64(H)
Overhead Door Closer
Item No:DT-64(H)
Material: Aluminum
Finish:Powder Painted
Color:Silver,Black, White, Champagne,Gold,Etc
Suitable for : Wooden Door, Steel Door, Fire Door
Multi-Colors
Certificate
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Frequently Asked Questions
What is an overhead door closer?
An overhead door closer is a device mounted on the top of a door, used to automatically close the door after it has been opened.
Overhead door closers are widely used in various settings, including offices, classrooms, commercial facilities, and healthcare buildings. They are especially important on fire doors, as they help compartmentalize a building by ensuring that fire doors close automatically, preventing the spread of fire and smoke. Most overhead door closers have adjusting screws that allow for the regulation of latching and closing speeds, enabling customization to suit different door types and usage requirements.
How to adjust overhead door closer?
The process of adjusting an overhead door closer varies slightly by model, but most follow a standard workflow focused on speed control, latching force, and hold-open settings (for equipped models).
How does an overhead door closer work?
An overhead door closer operates on a combination of mechanical (spring) force and hydraulic (fluid) control to automate door closing—ensuring it closes smoothly (not slamming) and securely. Its core design balances “closing power” (to shut the door) with “speed regulation” (to prevent damage or injury).
Company information
Establish in year 2008, Dortec has more than 17years experience for manufacturing overhead door closer.
Dortec has run business with more than 120 overseas companies in North America, Europe, South America, Middle East and Southeast Asia. Dortec always takes quality for its life.
Since the establishment of the company, Dortec always keeps this motto in their hearts: We would rather spend millions of dollars more to prevent even one piece of unqualified products go out of our workshop.
Dortec sincerely promises to guarantee the quality and to continually provide reliable and excellent products to our customers all over the world.
In the year 2001, Dortec have got ISO9001-2000 certification. Up to now, many of our products are certified under , CCC, the UL Fire-testing and CE certification for European market.
Our Workshop
Workflow Chat
- Bending
- Punching
- Painting
- Assemble
- Packing
Door Closer Project applications
exhibition
Get in touch
If you have demand for door closer, welcome to contact us
dortecdc@gmail.com
We reply within 24 hours
Have any questions?
+8613757740850
Working hours
Mon-Sat, 8am until 8pm
China Based
Hefei city
