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Concealed Overhead Heavy Duty Door Closer For External Door
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DC‑009 Concealed Overhead Heavy‑Duty Door Closer For External Door
DC‑009 concealed overhead heavy‑duty hydraulic door closer specially designed for external door assemblies. High‑strength anti‑rust overhead concealed housing structure, fully hidden installation inside door frame to keep neat door appearance. Adjustable spring power size, adjustable closing and latching speed, optional hold‑open function. Passed strict endurance and fire‑resistance testing, well‑adapted to complex outdoor environmental conditions. Suitable for wooden, metal and fire‑rated external door‑sets for high‑end residential and commercial building projects. Matching installation accessories included. Monthly production capacity reaches 130,000 units for B2B wholesale architectural concealed door‑closer hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | Concealed Overhead Heavy‑Duty Hydraulic External Door Closer |
| Operation | Adjustable power size, adjustable closing & latching speed, optional hold‑open |
| Material | Anti‑rust High‑Strength Alloy Housing + Hydraulic‑Spring Damping Internal Components |
| Core Functions | Concealed overhead installation, automatic door‑closing, anti‑rust exterior‑adaptable, optional hold‑open |
| Application | Wooden / Metal / Fire‑Rated External Door Assemblies, High‑End Residential & Commercial Building Projects |
| Production Capacity | 130,000 Units / Month |
Application Scenarios
High‑End Residential External Door Installations
Concealed overhead heavy‑duty door closer for luxury residential external entrance doors. Fully hidden overhead installation without exposed hardware components, maintains clean door visual effect. Anti‑rust construction adapts outdoor climate changes, realizes stable automatic closing for household exterior door‑sets.
Commercial & Fire‑Rated External Door Systems
Heavy‑duty concealed overhead door closer for office, hotel and public‑building external door assemblies. Fits fire‑rated exterior door‑sets, reliable performance under frequent opening‑closing cycles for high‑grade commercial building hardware specification requirements.
New‑Build & Architectural Tender Projects
Professional matching installation accessory kit included. Suitable for high‑end residential‑commercial new‑build, refurbishment and concealed overhead door‑closer hardware tender specification packages.
Product Characteristics
Concealed overhead heavy‑duty structural design, housing is hidden inside door frame, no exposed hardware, realizing neat and high‑grade door appearance effect
High‑strength anti‑rust alloy housing, good environmental adaptability for external door usage scenarios, stable hydraulic‑spring internal damping assembly
Adjustable spring power size, adjustable closing speed and latching speed; optional hold‑open positioning function for different site installation requirements
Passed endurance and fire‑resistance relevant testing, professional supporting installation accessories for concealed overhead installation operation
Specially optimized for external door usage, compatible with wooden, metal and fire‑rated exterior door assemblies for high‑end residential and commercial applications
Monthly capacity 130 000 units for B2B wholesale architectural concealed door‑closer hardware orders
Warranty & Customization
Standard quality warranty against manufacturing defects of alloy housing and internal hydraulic‑spring components
Bulk wholesale supply for architectural construction tender projects
2D installation drawing and product performance specification datasheet available for tender submission documentation
Frequently Asked Questions
What is the installation feature of DC‑009 concealed overhead door closer?
DC‑009 adopts concealed overhead heavy‑duty structure, the whole housing is hidden inside door frame without exposed hardware. It supports adjustable power & speed and optional hold‑open, specially designed for external door assemblies.
Can DC‑009 be applied for fire‑rated external doors?
Yes, DC‑009 has passed related fire‑resistance test and can be used on qualified fire‑rated wooden and metal external door‑sets for commercial and institutional building projects.
Which door‑sets fit DC‑009 concealed overhead door closer?
It is suitable for wooden, metal and fire‑rated external door assemblies for high‑end residential and commercial building projects for bulk wholesale orders.
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