Aluminium Door Closer CE UL

Aluminium Door Closer CE UL

2 year ago

75 0

D&D HARDWARE INDUSTRIAL CO., LIMITED

 2 year year

Product details

The Medium Duty Aluminum Commercial Door Closer is positioned as a cost-effective and reliable door control solution for light to medium-traffic commercial environments. Constructed from durable aluminium alloy, it offers stable performance, corrosion resistance, and long-term operational reliability under daily use. Equipped with a precision hydraulic mechanism, it ensures smooth and controlled closing to prevent door slamming while maintaining consistent latching performance. Certified UL Listed for 3-hour fire-rated doors (File No.: R40717), it supports fire door compliance by providing automatic closing function during emergency situations. This door closer is ideal for interior wooden and metal doors in offices, retail stores, apartment buildings, and other commercial facilities where balanced performance, safety certification, and dependable door control are required.

Technical Specifications

Door Width	950 mm
Door Weight Capacity	40–65 kg
Certifications	UL Listed (3 Hours Fire-Rated, File No.: R40717), CE Certified
Mechanism	Heavy-duty rack and pinion
Construction	High-strength cast aluminum body
Adjustable Features	Two separate valves for closing & latching speed adjustment
Work Temperature	-30℃ to 60℃
Installation Types	Universal (Standard, Top-Jamb, Parallel Arm; P.A bracket provided upon request)

Product Images and Videos

Product Features & Advantages

UL & CE Fire-Rated Safety: The DDDC038 door closer is certified with a UL 3-hour fire rating (File No.: R40717) and CE marking, ensuring compliance with both North American and European safety standards. This dual certification validates its automatic fire door closure capability, helping to prevent the spread of smoke and flames while meeting international building code requirements for commercial and residential applications.
Heavy-Duty Rack & Pinion Mechanism: Built with a robust rack and pinion mechanism housed in a high-strength cast aluminum body, the closer delivers smooth and consistent door control. Designed for medium-weight doors ranging from 40–65 kg, it provides reliable performance in high-traffic areas such as office entryways, hotel corridors, and institutional facilities.
Dual Adjustable Valves: Equipped with two independent adjustment valves, the closer allows precise control over both closing speed and latching speed. This customization ensures optimal performance based on door weight and environmental conditions, reducing slamming, protecting door hardware, and improving user comfort.
Wide Temperature Range: Engineered to function effectively between -30℃ and 60℃, the DDDC038 maintains stable hydraulic performance in temperature-variable environments such as basements, garages, warehouses, and climate-exposed commercial spaces.
Universal Installation: The closer supports standard, top-jamb, and parallel arm installations, with a parallel arm (P.A) bracket available upon request. This flexibility simplifies adaptation to various door and frame configurations, ensuring seamless compatibility with existing door hinges and structural layouts.

Application Scenarios

The DDDC038 Medium Duty Door Closer is designed for environments that require reliable fire-rated performance, consistent hydraulic control, and adaptability for medium-weight doors.

In hotel corridors, it supports frequent door operation while integrating with door locks to maintain guest security and comfort. In office building entryways, its UL fire rating helps meet commercial safety codes, while flexible installation options allow coordination with concealed hinges for a clean architectural appearance.

Hospital exam rooms benefit from its dual adjustable valves, enabling quiet and controlled door closure to enhance patient comfort and minimize disturbance. In school classrooms, the closer ensures smooth daily operation while meeting fire safety requirements. Residential garage entry doors also benefit from its wide temperature tolerance and durable construction, maintaining reliable performance under variable environmental conditions.

Certifications and Compliance

UL Listed (3 Hours Fire-Rated): Certified under File No.: R40717, confirming automatic fire door closure performance and compliance with stringent fire safety standards.
CE Certification: Complies with European safety, health, and environmental protection regulations for building hardware, ensuring acceptance in EU markets.
ISO 9001 Quality System: Manufactured within D&D’s ISO 9001-certified quality management system, ensuring strict oversight from raw material inspection through final performance testing.

Customization Options

D&D offers customization for the DDDC038 door closer to meet project-specific needs:

Parallel Arm Bracket: A P.A bracket can be provided for projects requiring parallel arm installation, ensuring compatibility with unique door and frame configurations.
Surface Finish Customization: Custom finishes such as brushed metal textures or powder-coated colors can be applied to the cast aluminum body to match door handles and architectural themes.
Speed Calibration: Closing and latching speeds can be further calibrated to meet specialized operational needs, including accessibility considerations for schools and public facilities.

Production Process & Quality Control

Material Sourcing: High-grade cast aluminum and precision components for the rack and pinion system are selected to ensure durability and reliable medium-duty (40–65 kg) door performance.
Precision Manufacturing: CNC machining processes create the cast aluminum housing, rack, pinion, and internal valve assemblies with strict dimensional accuracy to guarantee smooth hydraulic operation.
Assembly & Calibration: Rack-and-pinion mechanisms, dual adjustable valves, and spring systems are assembled and calibrated to meet UL and CE performance standards.
Quality Inspection: Each unit undergoes functional testing, including medium-duty operational cycles, speed adjustment validation, and simulated fire-rated performance evaluation, along with visual defect inspection.
Certification Testing: Random production samples are tested according to UL and CE requirements to verify fire-rated closure capability, speed accuracy, and long-term durability compliance.
Packaging: Products are securely packed in protective white, color, or customized cartons with clear labeling to prevent transit damage and support efficient logistics management.

Installation Steps

Prepare Door & Frame: Confirm that the door width (≤950 mm) and weight (40–65 kg) comply with DDDC038 specifications. Gather essential tools such as a drill, screwdriver, and measuring tape to ensure accurate placement.
Select Installation Type: Choose the appropriate mounting configuration—standard, top-jamb, or parallel arm—based on the door and frame structure. Request a P.A bracket if parallel arm installation is required.
Mount Cast Aluminum Body: Secure the cast aluminum closer body to the door or frame according to the installation template. Ensure proper alignment with the door lock and door hinge positions to guarantee balanced operation.
Install Rack & Pinion Arm: Attach the rack and pinion arm to the closer body and the door frame. Adjust the arm linkage to allow correct door travel and smooth opening and closing cycles.
Adjust Closing & Latching Speed: Use the dual adjustable valves to fine-tune the closing and latching speeds. Perform multiple open-and-close tests to confirm smooth, controlled operation without slamming.
Verify Operation & Integration: Confirm proper door closing and latching functionality. Ensure compatibility with panic exit devices, door stops, and other door accessories for complete system coordination.

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D&D HARDWARE INDUSTRIAL CO., LIMITED

 Audited supplier

2 year

Address: Jiangmen, China

Main Product: door hinges, door locks, panic exit device, door closers , door handles, door hardware

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