Assa Abloy - SL500/ SL510/ SL520 Drive unit HDD

Assa Abloy SL500 / SL510 / SL520 – Drive Unit HDD

The Assa Abloy HDD Drive Unit is a genuine high-duty drive assembly for SL500, SL510, and SL520 automatic sliding door operators. Engineered for demanding commercial environments, this unit delivers powerful, consistent motor performance and smooth door movement, restoring full operating efficiency when replacing a worn or failed drive system.

Key Features & Benefits

• High-Duty Drive Performance – Designed for heavier doors and busy entrances requiring robust, continuous operation.

• Genuine Assa Abloy Assembly – Ensures exact compatibility and reinstates factory-standard performance across SL-series operators.

• Smooth, Controlled Movement – Provides stable torque output for refined opening and closing cycles.

• Durable Mechanical & Motor Components – Built to withstand high cycle rates and long-term commercial use.

• Improved System Reliability – Reduces operational noise, vibration, and stress on connected components.

• Straightforward Replacement – Direct-fit drive unit that installs quickly using existing mounting and wiring points.

Technical Summary

• Component type: HDD drive unit (high-duty)

• Compatibility: Assa Abloy SL500, SL510, SL520

• Function: Provides primary drive power for sliding door operation

• Construction: High-duty motor assembly with integrated transmission

• Fitment: Direct replacement for original drive motor unit