Adjustable CE UL Fireproof Door Closer

Surface Mounted Door Closer - Model DDDC036

1. Product Overview

The DDDC036 Surface Mounted Door Closer by D&D HARDWARE is a CE & UL Listed (3 Hours Fire-Rated, File No.: R40717) door closer engineered for fire safety and reliable performance in commercial and residential settings. Designed for surface mounting, this closer automatically closes doors upon opening, enhancing security while integrating seamlessly with D&D’s door hardware ecosystem (including door locks, door hinges, and door handles). Ideal for doors up to 750mm wide and 15–30kg in weight, it delivers controlled operation with adjustable speed functionality.

2. Surface Mounted Door Closer - Technical Specifications

• Model Number: DDDC036
• Brand: D&D HARDWARE
• Door Width Compatibility: ＜750mm
• Door Weight Capacity: 15–30kg
• Speed Control: Adjustable Closing & Latching Speed (via two separate valves)
• Certifications: UL Listed (10C, 3 Hours Fire Rated, File No.: R40717), CE Certified
• Work Temperature: -30°C to 60°C (suitable for diverse climates)
• Installation: Surface-mounted, universal application (Standard, Top-Jamb, Parallel Arm; PA bracket available upon request)
• Finish Options: Gold, Brown, Antique Bronze, Light Bronze, Matt White, Silver, Dark Bronze, Matt Black, or custom

3. Surface Mounted Door Closer - Product Images and Videos

4. Surface Mounted Door Closer - Product Features & Advantages

• UL Listed & CE Certified: 3-hour fire protection (UL Listed, File No.: R40717) and CE compliance ensure safety and code adherence in commercial and residential buildings.
• Surface-Mounted Convenience: Easy to install on door surfaces, making it ideal for retrofitting or new construction projects without complex modifications.
• Adjustable Closing & Latching Speed: Two separate valves enable precise tuning of door closing and latching speeds, ensuring smooth, controlled operation without slamming.
• Heavy-Duty Rack and Pinion Mechanism: Delivers reliable performance for doors up to 30kg, with a high-strength cast aluminum body for durability in moderate-traffic environments.
• Universal Application: Compatible with standard, top-jamb, and parallel arm setups (PA bracket available on request), fitting various door configurations.
• Wide Temperature Range: Operates reliably from -30°C to 60°C, suitable for diverse climates and indoor/outdoor applications.
• Seamless D&D Hardware Integration: Works with door locks, door hinges, door stops, and door accessories to create a unified door hardware system for comprehensive building functionality.

5. Surface Mounted Door Closer - Installation Steps

1. Prepare the Door & Tools: Ensure door width (≤750mm) and weight (15–30kg) match DDDC036 specifications. Gather a drill, screwdriver, and measuring tape.
2. Select Installation Type: Choose standard, top-jamb, or parallel arm setup (request PA bracket if needed) based on door/frame design.
3. Mount the Closer Body: Attach the surface-mounted closer body to the door using provided hardware, aligning with door hinge and door lock components.
4. Install Arm & Linkage: Connect the rack and pinion arm to the door and closer body, adjusting linkage for proper door travel and closing force.
5. Adjust Speed Valves: Set closing and latching speeds via the two separate valves, testing operation for smooth, controlled movement.
6. Verify Integration: Ensure compatibility with door locks, door hinges, and door stops for seamless system performance in opening/closing cycles.

6. Surface Mounted Door Closer - Application Scenarios

The DDDC036 Surface Mounted Door Closer excels in environments requiring fire safety and controlled operation for light-duty doors, including:

In apartments, it ensures interior doors close securely while meeting fire safety codes, integrating with door locks for privacy control. For hotels, its light-duty design suits guest bathroom doors, pairing with door hinges for quiet, durable operation. In offices, adjustable speed control provides smooth closing for pantry doors, matching door handles for a professional aesthetic.

7. Surface Mounted Door Closer - Value for Buyers

• Fire Safety Compliance: UL 3-hour fire rating meets building codes, ensuring occupant safety and reducing liability for property owners.
• Surface-Mounted Ease: Simplifies installation for retrofits or new builds, saving time and labor costs for contractors.
• Systematic Procurement: Integrates with D&D’s door locks, door hinges, door stops, and accessories, enabling buyers to source a complete door hardware solution from one supplier—streamlining logistics and project management.
• Light-Duty Efficiency: Optimized for 15–30kg doors, delivering reliable performance without unnecessary bulk for residential and light commercial spaces.
• Easy Customization & Operation: Diverse finish options match architectural styles, while adjustable speed ensures user-friendly, quiet door operation.

8. Surface Mounted Door Closer - Certifications and Compliance

The DDDC036 Door Closer meets rigorous international standards for safety, performance, and quality:

• UL Listed (10C, 3 Hours Fire Rated): File No.: R40717—validates fire protection performance in emergency scenarios.
• CE Certification: Complies with European safety, health, and environmental protection standards.
• ISO 9001 Quality System: Produced in D&D’s ISO 9001-certified factory, with strict quality control from material sourcing to final testing.

9. Surface Mounted Door Closer - Customization Options

D&D offers OEM/ODM customization for the DDDC036 door closer to meet project-specific needs:

• Finish Customization: Select from standard finishes (Gold, Brown, Antique Bronze, etc.) or request custom colors to match door handle and architectural aesthetics.
• PA Bracket Availability: Request parallel arm (PA) brackets for unique installation requirements in specialized door setups.
• Branding: Incorporate custom logos or engravings on closer bodies for property developers or brand-specific building solutions.

10. Surface Mounted Door Closer - Production Process & Quality Control

1. Material Sourcing: Procure high-quality cast aluminum and steel components, tested for strength, corrosion resistance, and fire-rated performance.
2. Precision Manufacturing: Use CNC machining to produce rack and pinion mechanisms, closer bodies, and speed valves—ensuring dimensional accuracy for UL/CE compliance.
3. Finishing & Coating: Apply selected finishes (powder coating, plating) with strict adhesion and uniformity testing to ensure aesthetic durability and corrosion resistance.
4. Assembly & Calibration: Integrate speed valves, rack/pinion components, and surface-mounted hardware, calibrating speed control for smooth, consistent door operation.
5. Quality Inspection: Each closer undergoes functional testing (speed control, closing force, fire-rated performance) and visual inspection for defects—critical for UL/CE certification.
6. Certification Testing: Random samples are tested against UL 10C and CE standards to verify fire-rated performance and safety in emergency scenarios.
7. Packaging: Pack in protective white/color boxes or custom cartons to prevent damage during shipping, with clear labeling for easy identification in logistics.