The HELI HRFD 355/2 axial high-performance fan from Helios is a powerful ventilation fan designed for demanding applications. With a cylindrical tube made of galvanized sheet steel and flanges on both sides, this fan offers a robust and durable construction. The directly driven motor enables efficient performance, while the impeller with profiled plastic blades ensures optimized airflow. The dynamic balancing of the impeller guarantees quiet operation, and the closed design along with low-noise ball bearings with long-term lubrication minimizes maintenance efforts. The fan is suitable for a duct diameter of 355 mm and can be controlled in speed through voltage reduction, making it a flexible solution for various ventilation needs.

• High-performance impeller with aerodynamically optimized blades
• Three-phase squirrel-cage motor with thermal contacts
• Maintenance-free design with long-term lubrication
• Low-noise ball bearings for quiet operation
• Robust construction made of galvanized sheet steel.