ASSA ABLOY DC135 Door Closer Sliding Rail EN 3 Brown for Doors up to 950mm 60kg

Product Overview

Assa Abloy DC135 door closer with sliding rail is engineered for both left and right-handed external doors in commercial and residential settings. Certified with EN 1154 and CE marking, it is approved for use on fire-rated and smoke-control doors, handling single-leaf doors up to 950 mm wide and 60 kg in weight. Thermodynamic valve technology ensures reliable operation in varying temperatures.

What distinguishes the DC135 is its fine-tuned adjustment capabilities: three separate valves allow precise control of closing speed (180°?15°), latch action (15°?0°), and opening damping above 75°. This feature helps installers quickly meet exact fire safety specifications and optimize door performance on-site without swapping hardware, making it a practical choice for fire door installers and bulk retrofits in educational or public buildings.

Key Features

• Sliding rail mechanism ? supports smooth and quiet door operation, reducing wear on the mechanism


• Maximum leaf width 950 mm ? accommodates standard and many compact entry doors up to 60 kg


• Thermodynamic valve technology ? reliable closing speed in fluctuating temperatures for stable safety compliance


• Three-stage adjustable hydraulic valves ? separate controls for speed, final latching, and opening damping


• Fire and smoke door certified ? suitable for fire-rated applications per EN 1154/CE approval


• Universal handing and mounting ? fits both left/right doors and hinge/non-hinge side installations


• Brown finish ? aesthetic match for dark wood or architectural doors

Technical Specifications

• Door Leaf Width: up to 950 mm


• Door Weight: up to 60 kg


• Maximum Opening Angle: 180°


• Certification: EN 1154


• Certification: CE


• Color: Brown


• Valve Technology: Thermodynamic


• Adjustment Valves: Closing speed (180°?15°), Latch (15°?0°), Opening damping (above 75°)


• Gear Technology: Rack and pinion


• Mounting Configurations: Hinge or opposite hinge side

Applications

Deployed on single-leaf fire and smoke control doors in offices, schools, multi-family residential buildings, and public spaces. Supports external door applications with requirements for certified fire resistance, smoke control, and adjustable closing parameters. Adaptable for retrofit or new construction projects with universal mounting and aesthetic color variants.

Packaging & Shipping

Standard export packaging. Unit includes the DC135 door closer in brown, sliding rail, mounting hardware set, and installation manual.