Backward-Curved Designs
Blade exit angle optimized to 32°, minimizing flow separation (CFD-verified). Efficiency reaches 84% at 3000 RPM.
Forward Multi-Wing Blades
56 airfoil-section blades increase pressure coefficient Cp by 0.18 (vs. standard 45-blade designs).
Axial Rotor-Stator Synergy
Glass fiber reinforced nylon impellers reduce tip clearance to 0.5mm, boosting volumetric efficiency to 78%.
Advanced Acoustics
Centrifugal blowers: Mid-mounted EC motors eliminate 1.6kHz resonance peaks
Tangential fans: 3-phase sinusoidal drive electronics cut electromagnetic noise by 15 dB
Reliability Engineering
60,000-hour bearing life (L10 rating at 40°C)
IP55 wet-environment models pass 500-hour salt spray testing (ASTM B117)
-30°C cold-start capability (Arctic application validated)
Conclusion
Blauberg’s EC-driven fan systems deliver measurable sustainability and performance advantages, with third-party verified efficiency exceeding global regulatory standards.
Download technical dossiers at: https://www.blaubergmotorenfan.com/
