CF Type External Rotor Centrifugal Fan

Key Structural Features

1. External Rotor Motor
   • Stator inside, rotor outside, directly driving the impeller for a compact, space-saving design.
   • The motor is self-cooling by airflow, ensuring reliable operation at ambient temperatures up to +60°C.
   • Built-in thermal protection prevents overload/overheating, enhancing safety.
2. High-Performance Impeller
   • Backward-curved, multi-arc blades with 3D aerodynamic profiling.
   • Made of high-quality steel plate, statically and dynamically balanced for low noise and smooth operation.
3. • Welded from heavy-gauge steel plate (or pre-galvanized steel for corrosion resistance).
   • Optimized volute design reduces airflow turbulence and noise, ensuring stable pressure output.
   • urable Volute Casing

Core Advantages

• High Efficiency & Energy Saving: Optimized impeller-motor matching reduces power consumption by 20–30% vs. conventional fans; power range: 240W–1.8kW.
• Ultra-Low Noise: Precision manufacturing and aerodynamic design deliver ≤65dB(A) noise, ideal for noise-sensitive environments.
• Compact & Versatile: Small footprint, supports 0°/90°/180°/270° outlet angles and left/right rotation; suitable for duct, roof, and cabinet mounting.
• Stable Performance: Speed up to 1,310–2,650 r/min, airflow: 500–10,000 m³/h, static pressure: 300–1,500 Pa.
• Easy Maintenance: All-metal construction, sealed bearings, and removable wind guard simplify cleaning and upkeep.

Typical Applications

• Commercial: Kitchen smoke exhaust (hotels/restaurants), shopping mall ventilation, bathroom air exchange.
• Industrial: Factory workshop ventilation, dust extraction, equipment cooling, and fume exhaust.
• Residential & Public: Building HVAC systems, garage ventilation, and small boiler air supply.

Technical Specifications (Common Models)