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LCN 4040XP Surface-Mounted Hydraulic Door Closer for Commercial & High-Traffic Applications
The LCN 4040XP is a meticulously engineered, heavy-duty hydraulic door closer designed for demanding commercial and institutional applications. Featuring a robust cast iron body and adjustable power from Sizes 1-6, it delivers precise door control and exceptional durability. Certified ANSI/BHMA A156.4 Grade 1, the 4040XP is built for sustained high-cycle performance.
Quick Answer
The LCN 4040XP's primary strength lies in its unparalleled durability and precise, adjustable hydraulic control engineered for the most rigorous high-traffic commercial environments.
✓ANSI/BHMA A156.4 Grade 1 Certified for superior durability and operational reliability.
✓Adjustable Power Sizes 1-6 accommodates diverse door weights and widths up to ~1400mm.
✓Independent hydraulic valves for precise closing speed, latching speed, and backcheck control.
✓Robust cast iron construction designed for sustained performance in commercial and high-traffic areas.
✓Non-handed, surface-mounted design offers versatile installation on timber or metal doors.
✓UL listed and BAA compliant, affirming adherence to essential safety and manufacturing standards.
The LCN 4040XP is an exceptionally robust and precisely engineered hydraulic door closer, optimally suited for high-frequency, heavy-duty commercial and institutional applications where supreme durability and adjustable door control are paramount. Its ANSI Grade 1 certification underscores its capacity for long-term, reliable performance in demanding environments.
✓ Who Should Buy
- •Facility managers of high-traffic commercial buildings (e.g., schools, universities, hospitals, office complexes).
- •Architects and specifiers requiring ANSI/BHMA A156.4 Grade 1 compliant door closers for demanding projects.
- •Contractors and installers needing a reliable, adjustable, and durable surface-mounted closer for timber or metal doors.
- •Building owners prioritizing longevity and consistent door control in heavy-use scenarios.
✕ Who Should Avoid
- •Applications explicitly requiring a fire-rated door closer.
- •Residential projects where lighter-duty and less expensive closers would suffice.
- •Installations where a hold-open or delayed action feature is a mandatory requirement.
- •Aesthetic-driven applications where a concealed door closer is preferred over a surface-mounted unit.
Product Overview
The LCN 4040XP represents a pinnacle of door control engineering, specifically designed for the most challenging commercial and institutional environments. This heavy-duty hydraulic door closer features a resilient cast iron body, finished with a durable powder coat, ensuring longevity and aesthetic integration. Its core functionality revolves around a precision hydraulic system, offering adjustable power from Sizes 1-6, making it adaptable for a wide range of door weights and widths up to approximately 1400mm. Critical to its performance are the independently adjustable valves, providing granular control over closing speed, latching speed, and a protective hydraulic backcheck. The 4040XP is non-handed for universal application and surface-mounted for straightforward installation on both timber and metal doors. Holding an ANSI/BHMA A156.4 Grade 1 certification, combined with UL listing and BAA compliance, underscores its suitability for demanding, high-cycle applications where consistent performance and reliability are paramount. It is important to note that while robust, the LCN 4040XP is not fire-rated, a crucial consideration for specific life safety door applications. This closer ships complete with all required hardware and arm assembly for immediate installation.
| Brand | lcn |
| Model Name | N/A |
| Category | Door Closer |
| Closer Type | hydraulic |
| Series | 4000 |
| Model Year | N/A |
| Country Of Origin | N/A |
| Intended Use | commercial and high traffic doors |
| Suitable For | timber or metal doors |
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Engineering Analysis
The LCN 4040XP exemplifies advanced hydraulic engineering tailored for high-demand door control. At its core, the unit utilizes a robust hydraulic system within its cast iron body. This system employs precisely engineered internal valving to meter hydraulic fluid, thus controlling the door's kinetic energy throughout its closing arc. Independent adjustment valves for closing speed, latching speed, and backcheck allow for highly precise door behavior calibration:
* Closing Speed Control: This valve regulates the flow of hydraulic fluid from the fully open position to approximately 10-15 degrees from closed, preventing uncontrolled door swing and ensuring a smooth, consistent closure rate.
* Latching Speed Control: Activated in the final 10-15 degrees of the door's travel, this critical adjustment allows for precise tuning of the closing force required to overcome latch friction, ensuring positive and secure latch engagement without excessive force or bounce.
* Hydraulic Backcheck: Engaging typically around 70-80 degrees of the door's opening cycle, the backcheck function provides a hydraulic cushion, resisting abusive or rapid opening. This protects the door, frame, and associated hardware from impact damage in environments prone to forceful door operation.
ANSI/BHMA A156.4 Grade 1 Compliance: This certification is a cornerstone of the 4040XP's engineering integrity. ANSI/BHMA A156.4 Grade 1 mandates rigorous performance criteria, including successful completion of 2 million test cycles. This extensive testing ensures exceptional durability, consistent operational forces, and resistance to environmental factors over a prolonged service life, validating its suitability for the most severe commercial and institutional applications. The 'high duty tested' rating further reinforces this commitment to long-term reliability.
Construction & Durability: The foundational `cast iron body` provides superior structural rigidity and inherent resistance to fatigue, critical for a closer subjected to millions of cycles. The internal hydraulic fluid seals are engineered for sustained leak-free performance across varying temperatures, although specific operating temperature ranges are not provided. The `non-handed` design streamlines inventory and installation, enhancing operational efficiency. It is imperative to emphasize that the LCN 4040XP is not fire-rated. This technical specification means it cannot be installed on fire-rated door assemblies where compliance with fire and life safety codes (e.g., UL 10C, NFPA 80) is mandatory. Its design focus is on hydraulic control and durability in general commercial use, not fire compartmentation.
Technical Support & FAQs
Engineering Analysis
The LCN 4040XP exemplifies advanced hydraulic engineering tailored for high-demand door control. At its core, the unit utilizes a robust hydraulic system within its cast iron body. This system employs precisely engineered internal valving to meter hydraulic fluid, thus controlling the door's kinetic energy throughout its closing arc. Independent adjustment valves for closing speed, latching speed, and backcheck allow for highly precise door behavior calibration:
* Closing Speed Control: This valve regulates the flow of hydraulic fluid from the fully open position to approximately 10-15 degrees from closed, preventing uncontrolled door swing and ensuring a smooth, consistent closure rate.
* Latching Speed Control: Activated in the final 10-15 degrees of the door's travel, this critical adjustment allows for precise tuning of the closing force required to overcome latch friction, ensuring positive and secure latch engagement without excessive force or bounce.
* Hydraulic Backcheck: Engaging typically around 70-80 degrees of the door's opening cycle, the backcheck function provides a hydraulic cushion, resisting abusive or rapid opening. This protects the door, frame, and associated hardware from impact damage in environments prone to forceful door operation.
ANSI/BHMA A156.4 Grade 1 Compliance: This certification is a cornerstone of the 4040XP's engineering integrity. ANSI/BHMA A156.4 Grade 1 mandates rigorous performance criteria, including successful completion of 2 million test cycles. This extensive testing ensures exceptional durability, consistent operational forces, and resistance to environmental factors over a prolonged service life, validating its suitability for the most severe commercial and institutional applications. The 'high duty tested' rating further reinforces this commitment to long-term reliability.
Construction & Durability: The foundational `cast iron body` provides superior structural rigidity and inherent resistance to fatigue, critical for a closer subjected to millions of cycles. The internal hydraulic fluid seals are engineered for sustained leak-free performance across varying temperatures, although specific operating temperature ranges are not provided. The `non-handed` design streamlines inventory and installation, enhancing operational efficiency. It is imperative to emphasize that the LCN 4040XP is not fire-rated. This technical specification means it cannot be installed on fire-rated door assemblies where compliance with fire and life safety codes (e.g., UL 10C, NFPA 80) is mandatory. Its design focus is on hydraulic control and durability in general commercial use, not fire compartmentation.