Aluminium Door Closer CE UL

ANSI UL Listed Universal Application Door Closer - Model DDDC020BC

1. Product Overview

The DDDC020BC ANSI UL Listed Universal Application Door Closer by D&D HARDWARE is a high-performance door closer engineered for versatility, safety, and durability. Certified to ANSI 156.4 Grade 1 and UL Listed (3 Hours Fire-Rated, File No.: R40717), this closer delivers reliable automatic door closing with adjustable spring force (sizes 1–6) and seamless integration with D&D’s door hardware ecosystem (including door locks, door hinges, and door handles). Ideal for doors weighing 15–150kg, it suits diverse commercial and residential applications with universal installation and barrier-free functionality.

2. ANSI UL Listed Universal Application Door Closer - Technical Specifications

• Model Number: DDDC020BC
• Brand: D&D HARDWARE
• Door Weight Capacity: 15–150kg (adjustable spring force: sizes 1–6)
• Speed Control: Adjustable Closing & Latching Speed
• Certifications: UL Listed (10C, 3 Hours Fire Rated, File No.: R40717); ANSI 156.4 Grade 1 (10 years guarantee, 2 million life cycles)
• Mechanism: Rack and pinion with needle bearing for smooth operation
• Installation: Universal (non-handed) for standard, top-jamb, or parallel arm setups; includes Barrier Free (BF) functionality for accessibility
• Finish Options: Gold, Brown, Antique Bronze, Light Bronze, Matt White, Silver, Dark Bronze, Matt Black, or custom

3. ANSI UL Listed Universal Application Door Closer - Product Images and Videos

4. ANSI UL Listed Universal Application Door Closer - Product Features & Advantages

• ANSI 156.4 Grade 1 & UL Listed: Meets rigorous industry standards for performance (10-year guarantee, 2 million life cycles) and fire safety (3-hour fire rating), ensuring reliability in high-traffic environments.
• Adjustable Spring Force (Sizes 1–6): Accommodates doors weighing 15–150kg, making it versatile for diverse door applications (residential to heavy commercial).
• Rack and Pinion Mechanism with Needle Bearing: Delivers smooth, quiet operation with minimal friction, enhancing durability and user experience.
• Universal Non-Handed Installation: Compatible with standard, top-jamb, or parallel arm setups for left/right-handed doors, simplifying installation and inventory management.
• Barrier Free (BF) Functionality: Supports accessibility for elderly or handicapped users, aligning with inclusive design standards for public and commercial buildings.
• 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. ANSI UL Listed Universal Application Door Closer - Installation Steps

1. Prepare the Door & Frame: Ensure door weight (15–150kg) matches DDDC020BC’s capacity. Gather installation tools (drill, screwdriver, measuring tape).
2. Select Installation Type: Choose standard, top-jamb, or parallel arm setup based on door/frame design and accessibility needs (e.g., BF functionality).
3. Mount the Closer Body: Attach the closer body to the door or frame 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 & Spring Force: Set closing/latching speeds via speed valves and adjust spring force (sizes 1–6) to match door weight, testing operation for smooth movement.
6. Verify BF Functionality (if applicable): If using Barrier Free mode, ensure the door operates with reduced closing force for accessibility.
7. Verify Integration: Ensure compatibility with door locks, door hinges, and door stops for seamless system performance.

6. ANSI UL Listed Universal Application Door Closer - Application Scenarios

The DDDC020BC Door Closer excels in environments requiring versatile, high-performance door control with ANSI/UL certification, including:

In hotels, its ANSI Grade 1 durability handles heavy traffic while providing fire safety, integrating with door locks for guest access control. For hospitals, Barrier Free functionality ensures accessibility for patients, pairing with door hinges for smooth, quiet operation. In office buildings, adjustable spring force accommodates diverse door weights, matching door handles for a professional aesthetic.

7. ANSI UL Listed Universal Application Door Closer - Value for Buyers

• ANSI/UL Certified Performance: Meets top industry standards for durability (2 million cycles) and fire safety (3-hour rating), reducing liability and ensuring long-term reliability.
• Versatile Door Compatibility: Adjustable spring force (1–6) supports doors from 15–150kg, eliminating the need for multiple closers and simplifying procurement.
• 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.
• Accessibility Compliance: Barrier Free functionality meets inclusive design requirements, supporting elderly/handicapped users in public and commercial spaces.
• Easy Installation & Adjustment: Universal non-handed installation and adjustable speed/spring force make setup accessible for contractors, ensuring optimal performance post-installation.

8. ANSI UL Listed Universal Application Door Closer - Certifications and Compliance

The DDDC020BC Door Closer meets rigorous international standards for safety, performance, and quality:

• ANSI 156.4 Grade 1: Validates high-performance durability (10-year guarantee, 2 million life cycles) for commercial applications.
• UL Listed (10C, 3 Hours Fire Rated): File No.: R40717—validates fire protection performance in emergency scenarios.
• ISO 9001 Quality System: Produced in D&D’s ISO 9001-certified factory, with strict quality control from material sourcing to final testing.

9. ANSI UL Listed Universal Application Door Closer - Customization Options

D&D offers OEM/ODM customization for the DDDC020BC 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.
• Branding: Incorporate custom logos or engravings on closer bodies for property developers or brand-specific building solutions.

10. ANSI UL Listed Universal Application Door Closer - Production Process & Quality Control

1. Material Sourcing: Procure high-quality metals and components (e.g., precision cast aluminum housing, needle bearings) tested for strength, corrosion resistance, and fire-rated performance.
2. Precision Manufacturing: Use CNC machining and automated assembly to produce rack and pinion mechanisms, closer bodies, and speed valves—ensuring dimensional accuracy for ANSI/UL 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, springs, and rack/pinion components, calibrating spring force (sizes 1–6) and speed control for smooth, consistent door operation.
5. Quality Inspection: Each closer undergoes functional testing (spring force, speed control, fire-rated performance) and visual inspection for defects—critical for ANSI/UL certification.
6. Certification Testing: Random samples are tested against ANSI 156.4 and UL 10C standards to verify performance and safety in commercial and 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.