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Aluminium Alloy Concealed Sliding Door Slow Closer
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DC‑049 Aluminium Alloy Concealed Sliding Door Slow Closer
DC‑049 aluminium alloy concealed sliding door slow closer, rack‑and‑pinion concealed‑mount hydraulic door closer. Precision cast aluminium alloy housing, non‑handed design suits left‑hand and right‑hand door. Two‑way adjustable closing and latching speed, adjustable spring force size, maximum opening angle up to 180‑degree. UL listed with 3‑hours fire‑rated certification, endurance test above 500,000 cycles. Suitable for wooden, metal and fire‑rated door assemblies for interior and exterior applications. Max door width 1100mm, applicable door weight 40‑85kg, multi‑size grade 2‑4. Complete installation accessories included. Monthly production capacity reaches 200,000 units for B2B wholesale architectural concealed door‑closer hardware tender projects.
Product Specification
| Specification | Parameter |
|---|---|
| Product Type | Concealed‑Mount Rack‑And‑Pinion Hydraulic Sliding Door Slow Closer |
| Operation | Two‑way adjustable speed, adjustable spring force, max 180° opening angle, non‑handed |
| Material | Precision Cast Aluminium Alloy Housing + Rack‑And‑Pinion Hydraulic‑Spring Components |
| Core Functions | Concealed mounting, auto door closing, UL 3‑Hour fire‑rated, 500,000+ cycle durability |
| Application | Wooden / Metal / Fire‑Rated Door Assemblies, Interior & Exterior, Residential & Commercial Building Projects |
| Max Door Width | 1100 mm |
| Door Weight Range | 40‑85 kg (Grade 2‑4) |
| Production Capacity | 200,000 Units / Month |
Technical Parameter
| Item | Details |
|---|---|
| Certification | UL Listed 3 Hours Fire Rated |
| Endurance | 500,000+ Opening & Closing Cycles |
| Hand Type | Non‑handed, fits left hand & right hand door |
| Adjustment | Closing Speed, Latching Speed, Spring Force |
| Max Opening Angle | 180 Degree |
| Package | 1 Set / White Box, Standard Export Carton, full mounting accessories included |
| MOQ | 200 PCS |
| Sample Lead Time | 5‑7 Working Days |
| Mass Production Lead Time | 30‑35 Days |
Application Scenarios
Residential Concealed‑Mount Door Installations
Concealed sliding‑type slow door closer for household interior and exterior wooden and metal doors. Fully concealed installation without exposed hardware components, maintains neat door appearance. Non‑handed design fits left‑hand or right‑hand residential door‑sets for new‑build and renovation projects.
Commercial & Fire‑Rated Door Systems
UL listed 3‑hour fire‑rated concealed door closer for office, retail and public‑building door assemblies. Passes 500,000‑cycle endurance test, stable performance for high‑frequency usage fire‑safety door‑sets in institutional commercial buildings.
New‑Build & Architectural Tender Projects
Full set of installation mounting accessories included. Compliant with international fire‑safety and door‑control hardware standards. Suitable for residential‑commercial new‑build, refurbishment and concealed door‑closer hardware tender specification packages.
Product Characteristics
Rack‑and‑pinion concealed‑mount structure, precision cast aluminium alloy housing, fully hidden installation for clean door visual effect
Non‑handed construction, compatible for both left‑hand and right‑hand door installation; two‑way adjustable closing & latching speed, adjustable spring‑force size, max opening angle 180°
UL‑listed 3‑hours fire‑rated certification; endurance performance above 500,000 opening‑closing cycles; suitable for door weight 40‑85kg, max door width 1100mm, multi‑size grade 2‑4
Comes with complete mounting hardware accessories for concealed‑mount site installation; multiple standard aluminium finish selections available
Works for wooden, metal and fire‑rated interior‑exterior door assemblies for residential and commercial building applications
Monthly capacity 200 000 units for B2B wholesale architectural concealed door‑closer hardware orders
Warranty & Customization
Standard quality warranty against manufacturing defects of cast aluminium housing and internal rack‑and‑pinion hydraulic‑spring components
Bulk wholesale supply for architectural construction tender projects
2D installation drawing, UL fire‑rated certification documents and product performance specification datasheet available for tender submission documentation
Frequently Asked Questions
What is the key feature of DC‑049 concealed sliding door closer?
DC‑049 is rack‑and‑pinion concealed‑mount hydraulic slow door closer, non‑handed for left‑hand / right‑hand doors. It has two‑way adjustable speed, adjustable spring force, UL 3‑hour fire‑rated, 500,000+ cycle endurance for wooden, metal and fire‑rated door‑sets.
What door weight & dimension fits DC‑049?
Applicable door weight 40‑85kg (Grade2‑4), maximum door width 1100mm, max opening angle 180‑degree for interior and exterior door assemblies.
Which door‑sets fit DC‑049 concealed sliding door closer?
Suitable for wooden, metal and fire‑rated interior‑exterior door assemblies in residential and commercial building projects for bulk wholesale orders.
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