7724 Series – Door Closer Covers, Drop Plates & Backcheck Options

The Lockwood 7724DA Series Premium Range Surface Mounted Door Closers are engineered for reliable, controlled door operation in architectural and commercial environments. Designed around a robust rack and pinion mechanism, this series delivers smooth performance, durability, and precise control for medium to high-traffic applications.

With adjustable power sizing and advanced control features such as delayed action and adjustable backcheck, the 7724DA Series enhances accessibility while protecting doors and surrounding hardware from excessive force. Its non-handed design and flexible mounting options make it suitable for a wide range of door configurations and installation conditions.

Constructed with a high-performance extruded aluminium body and protected by a fully formed metal cover, this range is built to withstand demanding daily use while maintaining a clean, professional appearance.

Key Features

• Adjustable Power Size (EN 2–4): Suitable for a wide range of door sizes and weights

• Adjustable Backcheck (BC): Helps prevent damage from forceful opening

• Delayed Action Function: Allows extra time before closing, improving accessibility

• Rack & Pinion Mechanism: Ensures smooth, consistent, and long-term performance

• Non-Handed Design: Suitable for both left- and right-hand doors

• Multiple Mounting Options: Regular, parallel arm, and over-door mounting supported

• Fully Formed Metal Cover: Durable and aesthetically clean finish

• Pressure Relief Valves: Two integrated valves help protect against abuse and overloading

• Supplied Ready for Installation: Packaged for efficient handling and display

Standards & Compliance

The Lockwood 7724DA Series has been successfully tested on fire door assemblies in accordance with Australian Standard AS1905.1:2005 – Fire Resistant Door Sets, achieving fire ratings of up to four hours depending on the door configuration.
Note: Hold-open functionality is not approved for use on fire doors.

Available Variants

This range includes surface-mounted door closers with adjustable power sizes, optional delayed action control, and compatibility with drop plates and accessories for varied installation requirements. Variants are available in multiple finishes and configurations to suit different architectural styles and door applications.