The HRFD 400/8/4 TK from Helios is a powerful axial high-performance fan designed for efficient ventilation in various applications. With a cylindrical housing made of galvanized sheet steel and flanges on both sides, this fan offers a robust and durable construction. The directly driven motor with Dahlander winding allows for flexible speed adjustment, while the dynamically balanced impeller with profiled plastic blades ensures optimized air circulation. The fan is maintenance-free and equipped with low-noise ball bearings that provide long-term lubrication. With an air flow rate of up to 4100 m³/h, the HRFD 400/8/4 TK is ideal for applications requiring high air performance.

• Direct drive with Dahlander winding for flexible speed control
• Dynamically balanced impeller for optimized air circulation
• Maintenance-free operation thanks to closed design and long-term lubrication
• Robust construction from galvanized sheet steel for durability.