The HELI HRFD450/4TK axial high-performance fan is a powerful ventilation fan designed for use in various industrial applications. With a cylindrical duct made of galvanized steel sheet and flanges on both sides, this fan offers a robust and durable construction. The directly driven motor enables efficient air circulation with an airflow rate of up to 5810 m³/h. The aerodynamically optimized blades of the impeller ensure high performance and quiet operation. The fan is equipped with an external terminal box that allows for easy installation and maintenance. Thanks to its closed design and maintenance-free ball bearings with long-term lubrication, the HELI HRFD450/4TK is particularly reliable and durable.

• Three-phase squirrel cage motor with voltage reduction for speed control
• Thermal contacts for additional motor protection
• Dynamically balanced impeller with profiled blades
• Quiet ball bearings with long-term lubrication for maintenance-free operation.