ASSA ABLOY DC135 Door Closer Sliding Rail EN 3 White 950mm Fire Rated

Product Overview

The Assa Abloy DC135 door closer with sliding rail is specified for exterior left- and right-handed doors, supporting a maximum door leaf width of 950 mm and weight up to 60 kg. Approved for use in fire-rated and smoke-control door assemblies, it carries CE marking and meets European standard EN 1154 classification /4/8/3/1/1/4/ for safety and performance. Valve-based adjustments allow tailored control of closing speed, latching phase, and opening damping, ensuring stable operation in varying temperatures.

Thermodynamic valve technology is the defining feature of the DC135, delivering consistent performance even in colder environments?this reduces operational risk for building managers and installers in regions subject to seasonal temperature changes. The DC135 is recommended for B2B buyers specifying hardware for commercial and institutional entryways, especially where certified fire/smoke door compliance and stable year-round operation are required.

Key Features

• Sliding rail mechanism ? facilitates smooth closing of doors up to 950 mm wide and 60 kg


• Approved for fire-rated and smoke-control doors ? satisfies safety requirements for entry and exits


• Thermodynamic valve technology ? maintains stable closing in low temperature environments


• Rack-and-pinion drive ? robust, mechanical reliability for frequent-use doors


• Multiple adjustment valves ? precise settings for closing speed, latching, and opening damping


• Maximum opening angle 180° ? accommodates wide entryways without restricting access


• Mounting flexibility ? installs hinge-side or opposite side, supporting varied door/frame layouts

Technical Specifications

• Maximum Door Width: 950 mm


• Maximum Door Weight: 60 kg


• Mounting Side: Hinge or opposite


• Maximum Opening Angle: 180°


• Color Options: White, Silver (EV1), Brown, Black


• Certification: CE


• Classification: EN 1154 /4/8/3/1/1/4/


• Adjustment Range Closing Speed: 180° to 15°


• Adjustment Range Latching Phase: 15° to 0°


• Opening Damping: Above 75°

Applications

Intended for installation on exterior entrance doors of commercial, institutional, and residential buildings where fire safety and smoke control are essential. Suitable for certified fire-rated and smoke-control doors, including those requiring entry hardware with stable performance in cold climates. Compatible with bulk projects in schools, hospitals, office blocks, public buildings, and OEM door manufacturers requiring EN 1154 classified closing hardware.

Packaging & Shipping

Standard export packaging. Each unit includes the DC135 door closer body in selected color, sliding rail arm, mounting hardware set, installation manual, and CE certificate documentation.