Engineering Overview & Technical Standards

Direct-Drive Industrial Shaft Operators for Heavy Sectional Doors

DoorHan industrial shaft operators (Shaft-30, Shaft-60, Shaft-120) are heavy-duty direct-drive electromechanical gearmotors designed to mount directly onto the torsion spring shaft of large commercial and industrial sectional doors. Engineered for continuous duty in logistics centers, fire stations, manufacturing plants, and agricultural facilities, Shaft operators handle door weights up to 850 kg with absolute stability.

Featuring a high-ratio worm gearbox bathed in synthetic lubricant, DoorHan shaft operators deliver massive starting torque with automatic mechanical self-locking.

Key Technical Specifications & Engineering Standards:

  • High Torque Output: Powerful 230V single-phase and 380V three-phase motors delivering up to 120 Nm of shaft torque.
  • Emergency Hand Chain Hoist: Integrated manual chain hoist mechanism allows effortless manual opening and closing of heavy doors during electrical outages.
  • Precision Rotary Limit Switches: Multi-turn micro-switch limit unit enables exact setting of upper, lower, and intermediate ventilation door positions.
  • External Control Panel: Complete IP65 wall-mount control box with three-button (Open-Stop-Close) membrane interface, key switch lock, and auto-close timer.
  • Optical Safety Edge Interface: Direct plug-and-play compatibility with bottom safety edge sensors, photocells, and external radar motion detectors.

Quality Assurance & Engineering Compliance:

All DoorHan sectional door systems are engineered and tested in accordance with European standard EN 13241-1 and ISO 9001:2015 quality management protocols. Every production batch is certified for Class 5 wind resistance (EN 12424), airtight perimeter sealing, and mechanical torsion spring fatigue endurance. We provide architects, structural engineers, and facility planners with comprehensive CAD drawings, BIM families, structural calculation sheets, and complete wiring schematics to guarantee seamless integration into modern logistics and industrial facility blueprints.

DoorHan Shaft operators deliver uncompromised commercial duty endurance, ensuring fast, fail-safe vehicle access across high-volume industrial facilities.