The HELI HRFW 500/4 axial high-performance fan from Helios is a powerful ventilation fan designed for use 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 directly driven fan is equipped with a rotor made of seven thermoplastic blades, contributing to high efficiency and low operating noise. The dynamic balancing ensures a vibration-free operation, enhancing operational reliability. The fan is equipped with a single-phase AC capacitor motor that is maintenance-free and features integrated thermal contacts to prevent overheating. Additionally, the fan is speed controllable, allowing for flexible adjustment to specific requirements.

• Vibration-free operation due to dynamic balancing according to quality grade G 6.3 VDI 2060 and DIN ISO 1940
• Maintenance-free, enclosed motor with integrated thermal contacts
• Reversible operating direction for flexible application possibilities
• Quiet ball bearings with long-term lubrication
• High air flow rate of 8320 m³/h at a power of 1.1 kW.