Aluminium Automatic Door Closer UL CE

Door Closer for Exterior Door - Model DDDC031

1. Product Overview

The DDDC031 Door Closer by D&D HARDWARE is a UL Listed, 3-hour fire-rated door closer engineered for safety and reliability in exterior door applications. Designed for both commercial and residential use, this heavy-duty closer ensures controlled door closing, fire protection, and seamless integration with D&D’s door hardware ecosystem (including door locks, door hinges, and door accessories). With CE certification and a 5-year warranty, it’s a trusted solution for enhancing security and life safety in diverse buildings.

2. Door Closer for Exterior Door - Technical Specifications

• Model Number: DDDC031
• Brand: D&D HARDWARE
• Door Width Compatibility: Up to 1100mm
• Door Weight Capacity: 60–85kg
• Speed Control: Adjustable closing & latching speed (via two separate valves)
• Optional Features: Built-in Hold Open function or Hold Open arm
• Installation Types: Standard, Top-Jamb, Parallel Arm (optional)
• Certifications: UL Listed (10C, 3 Hours Fire Rated, File No.: R40717), CE Certified
• Finish Options: Gold, Brown, Antique Bronze, Light Bronze, Matt White, Silver, Dark Bronze, Matt Black, or custom

3. Door Closer for Exterior Door - Product Images and Videos

4. Door Closer for Exterior Door - Product Features & Advantages

• UL Listed & Fire-Rated: 3-hour fire protection certified by UL (File No.: R40717), preventing flame/smoke spread in emergencies—critical for life safety in buildings.
• Adjustable Speed Control: Two separate valves enable precise adjustment of closing and latching speeds, ensuring smooth, controlled door operation.
• Hold Open Functionality: Optional built-in Hold Open or Hold Open arm allows doors to stay open when needed, enhancing accessibility and convenience.
• Universal Installation: Compatible with standard, top-jamb, and parallel arm setups (parallel arm optional), fitting diverse door configurations.
• Durable Construction: Engineered for heavy-duty commercial and residential use, with corrosion-resistant finishes and robust mechanics for long-lasting performance.
• 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 safety.

5. Door Closer for Exterior Door - Installation Steps

1. Prepare the Door & Frame: Ensure door width (≤1100mm) and weight (60–85kg) match DDDC031 specifications. Gather installation tools (drill, screwdriver, measuring tape).
2. Select Installation Type: Choose standard, top-jamb, or parallel arm (optional) installation based on door/frame design and project requirements.
3. Mount the Closer Body: Attach the door closer body to the door or frame using provided hardware, ensuring alignment with hinge and door lock components.
4. Install Arm & Linkage: Connect the closer arm to the door and frame, adjusting linkage length 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. Test Hold Open (if applicable): If using Hold Open functionality, verify the door stays open at the desired angle and releases smoothly to close.
7. Verify Integration: Ensure compatibility with door hinges, door locks, and door stops for seamless system performance.

6. Door Closer for Exterior Door - Application Scenarios

The DDDC031 Door Closer excels in environments requiring fire safety, controlled door operation, and heavy-duty performance, including:

In hotels, it ensures guest room doors close securely while meeting fire safety codes, integrating with door locks for access control. For apartment buildings, the 60–85kg weight capacity handles heavy exterior doors, pairing with door hinges for durable operation. In office buildings, adjustable speed control provides quiet, smooth door closing in busy corridors, matching door accessories for a professional aesthetic.

7. Door Closer for Exterior Door - Value for Buyers

• Life Safety Compliance: UL fire-rating and CE certification meet international safety standards, ensuring code compliance for buildings and reducing liability risks.
• Heavy-Duty Durability: Engineered for 60–85kg doors and commercial use, resisting wear and corrosion—lowering maintenance costs over time.
• 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.
• Customization Flexibility: Optional Hold Open, diverse finish options, and universal installation adapt to unique project requirements and design aesthetics.
• Easy Installation & Adjustment: Clear instructions and adjustable speed valves make setup accessible for contractors, ensuring optimal door performance post-installation.

8. Door Closer for Exterior Door - Certifications and Compliance

The DDDC031 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. Door Closer for Exterior Door - Customization Options

D&D offers OEM/ODM customization for the DDDC031 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.
• Function Customization: Add or modify Hold Open functionality (built-in or arm-based) to align with accessibility or operational requirements.
• Installation Configuration: Customize mounting hardware or arm lengths for non-standard door/frame setups in unique architectural projects.
• Branding: Incorporate custom logos or engravings on closer bodies for property developers or brand-specific building solutions.

10. Door Closer for Exterior Door - Production Process & Quality Control

1. Material Sourcing: Procure high-quality metals and components, tested for corrosion resistance, strength, and fire-rated performance.
2. Precision Manufacturing: Use CNC machining and automated assembly to produce closer bodies, arms, valves, and linkages—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 valves, springs, and mechanical components, calibrating speed control for smooth, consistent door operation.
5. Quality Inspection: Each closer undergoes functional testing (speed control, hold open, closing force) 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.