The HELIOS VARW 355/4 TK RADAX high-pressure duct fan is a powerful ventilation fan designed for use in demanding applications. With its cylindrical duct sleeve and flanges on both sides, it allows for easy installation in existing duct systems. The fan features a robust galvanized steel housing that ensures durability and resilience. The semi-axial impeller with eight spatially curved blades made of thermoplastic provides a high air flow rate of up to 3470 m³/h, while the directly driven single-phase AC capacitor motor offers efficient and maintenance-free performance. The dynamic balancing according to quality grade G 6.3 guarantees vibration-free operation, extending the device's lifespan and minimizing noise levels. This fan is ideal for applications that require reliable and powerful air circulation.

• Dynamic balancing according to quality grade G 6.3 VDI 2060 and DIN ISO 1940 for vibration-free operation
• Maintenance-free, closed single-phase AC capacitor motor
• Thermal contacts in the winding for additional protection
• Low-noise ball bearings with long-term lubrication
• Speed controllable by voltage reduction.