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ASSA ABLOY CT1800: Precision Engineering in Surface-Mounted Hydraulic Door Control
The ASSA ABLOY CT1800 is a robust, surface-mounted hydraulic door closer engineered for reliable and controlled door operation. Conforming to EN 1154 standards, it offers precise variable closing and latching speed control for doors weighing up to 80 kg and 1100 mm wide, crucially certified for fire door applications.
Quick Answer
The ASSA ABLOY CT1800's primary strength lies in its EN 1154 certified hydraulic precision for consistent door control, especially vital in fire safety scenarios.
✓EN 1154 CE Certified for Fire Doors
✓Adjustable Power Size EN 2-4 for Versatile Application
✓Variable Closing and Latching Speed Controls
✓Non-Handed Surface Mounted Design
✓Robust Steel Construction for Durability
The ASSA ABLOY CT1800 is an optimally engineered hydraulic door closer providing reliable, EN 1154 compliant door control. Its adjustable power and speed settings make it a versatile choice for standard and fire-rated applications prioritizing functional precision and safety.
✓ Who Should Buy
- •Facility managers requiring EN 1154 certified door control for fire safety
- •Building contractors needing versatile door closers for various door weights/widths
- •Maintenance teams seeking durable and easily adjustable door hardware
- •Architects specifying compliant hardware for commercial and institutional projects
✕ Who Should Avoid
- •Applications requiring integrated back-check for abusive opening prevention
- •Installations needing a hold-open function for convenience
- •Scenarios demanding a delayed action feature for enhanced accessibility
Product Overview
The ASSA ABLOY CT1800 is a high-performance hydraulic door closer designed for general door closing applications, with a specific suitability for fire doors, evidenced by its EN 1154 CE certification. This surface-mounted unit accommodates door weights from 40-80 kg and widths up to 1100 mm. Its non-handed design ensures universal application, while multi-position power settings (EN 2-4) and independently adjustable closing and latching speeds allow for precise control over door dynamics. Constructed from durable steel with a silver finish, the CT1800 provides a reliable and aesthetically neutral solution for diverse commercial and institutional environments.
| Brand | assa-abloy |
| Model Name | N/A |
| Category | Door Closer |
| Closer Type | hydraulic-standard |
| Series | CT1800 |
| Model Year | N/A |
| Country Of Origin | N/A |
| Intended Use | General door closing |
| Suitable For | Fire doors (EN1154 certified) |
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Engineering Analysis
The ASSA ABLOY CT1800 represents a meticulously engineered hydraulic mechanism designed for superior door control. At its core, the unit employs a robust rack-and-pinion system submerged within a precisely calibrated hydraulic fluid chamber. As the door opens, kinetic energy is transferred to the hydraulic piston, compressing the fluid. Upon release, the controlled return flow of this fluid through adjustable valves dictates the door's closing and latching speeds. This fluid dynamics principle allows for smooth, consistent deceleration, preventing slamming and ensuring full closure. The steel body construction provides a stable housing for these critical components, protecting them from operational stresses and environmental factors, thus contributing to the unit's longevity.
Compliance with EN 1154 CE is a cornerstone of the CT1800's design. This European standard specifically regulates controlled door closing devices, mandating rigorous testing for durability, closing force efficiency, and operational stability across various temperatures. For the CT1800, this certification directly validates its suitability for fire doors, ensuring that in the event of a fire, the closer will reliably return the door to its fully closed and latched position, maintaining compartmentation and inhibiting smoke and flame spread. The EN 1154 certification encompasses performance integrity over a substantial number of cycles, underscoring its readiness for high-traffic environments.
Precision door control is achieved through independent, variable valve adjustments for both the closing speed (from maximum opening angle to approximately 15°) and the latching speed (the final 15° to closed). This dual-valve system allows installers to fine-tune the door's behavior, ensuring sufficient momentum for secure latching without excessive force that could damage the door frame or cause user discomfort. The multi-position power size selection (EN 2, 3, or 4) further tailors the closing force to specific door dimensions and weights (e.g., EN 2 for lighter doors, EN 4 for heavier doors up to 80 kg/1100 mm), optimizing energy efficiency and operational smoothness. While lacking back-check, hold-open, or delayed action, the CT1800's focused design excels in its primary function: delivering uncompromised, adjustable, and safety-compliant door closure.
Technical Support & FAQs
Engineering Analysis
The ASSA ABLOY CT1800 represents a meticulously engineered hydraulic mechanism designed for superior door control. At its core, the unit employs a robust rack-and-pinion system submerged within a precisely calibrated hydraulic fluid chamber. As the door opens, kinetic energy is transferred to the hydraulic piston, compressing the fluid. Upon release, the controlled return flow of this fluid through adjustable valves dictates the door's closing and latching speeds. This fluid dynamics principle allows for smooth, consistent deceleration, preventing slamming and ensuring full closure. The steel body construction provides a stable housing for these critical components, protecting them from operational stresses and environmental factors, thus contributing to the unit's longevity.
Compliance with EN 1154 CE is a cornerstone of the CT1800's design. This European standard specifically regulates controlled door closing devices, mandating rigorous testing for durability, closing force efficiency, and operational stability across various temperatures. For the CT1800, this certification directly validates its suitability for fire doors, ensuring that in the event of a fire, the closer will reliably return the door to its fully closed and latched position, maintaining compartmentation and inhibiting smoke and flame spread. The EN 1154 certification encompasses performance integrity over a substantial number of cycles, underscoring its readiness for high-traffic environments.
Precision door control is achieved through independent, variable valve adjustments for both the closing speed (from maximum opening angle to approximately 15°) and the latching speed (the final 15° to closed). This dual-valve system allows installers to fine-tune the door's behavior, ensuring sufficient momentum for secure latching without excessive force that could damage the door frame or cause user discomfort. The multi-position power size selection (EN 2, 3, or 4) further tailors the closing force to specific door dimensions and weights (e.g., EN 2 for lighter doors, EN 4 for heavier doors up to 80 kg/1100 mm), optimizing energy efficiency and operational smoothness. While lacking back-check, hold-open, or delayed action, the CT1800's focused design excels in its primary function: delivering uncompromised, adjustable, and safety-compliant door closure.