The HELI HRFW 250/4 high-performance fan from Helios is a powerful axial fan designed for efficient ventilation in various applications. With a cylindrical duct made of galvanized steel sheet and flanges on both sides, this fan offers a robust and durable construction. The impeller is equipped with profiled plastic blades that are aerodynamically optimized to ensure a high air flow rate of up to 930 m³/h. The fan features a maintenance-free single-phase AC capacitor motor with a closed design and thermal contacts for added protection. Noise generation is minimized by sealed ball bearings with long-term lubrication, making operation particularly quiet. Additionally, the fan is speed controllable, allowing for flexible adjustment to meet specific requirements.

• High-performance impeller with profiled blades for optimized aerodynamics
• Maintenance-free capacitor motor with integrated thermal contacts
• Quiet ball bearings with long-term lubrication
• Speed control possible through voltage reduction
• Robust construction made of galvanized steel sheet with flanges on both sides.