External rotor forward centrifugal fans are characterized by the rotor being mounted outside of the fan casing. This design reduces the overall size and simplifies maintenance. The forward-curved blades help achieve high airflow volumes, and the external rotor configuration improves motor cooling and efficiency. These fans are commonly used in HVAC systems, small commercial air handling units, and compact ventilation applications. Their compact design and efficient operation make them highly suitable for installations where space and energy efficiency are key factors.
