The Helios AMW 400/4 is a medium pressure axial fan designed with a long cylindrical duct casing made from sheet steel, enclosing both the impeller and motor. It includes flanges on both sides, featuring hole patterns in accordance with DIN 24155 Pt.3 for easy installation.
This fan utilizes an axial impeller with 14 aerodynamically profiled blades manufactured from polymers, dynamically balanced to DIN ISO 1940 – 1 class 6.3, ensuring low vibration during operation. It is driven by a totally enclosed AC condenser motor that is maintenance-free and equipped with built-in thermal contacts for protection. The motor supports speed control through voltage reduction and operates with low-noise, sealed-for-life ball bearings. The motor is not reversible.