Latest motor technology now applied in ABBI-FAN fans. The ABBI-FAN 140-XXP fan is Abbi-Aerotech’s latest development in dairy barn fans. This fan is by far the most energy efficient in the market for larger axial fans. A sophisticated suspension system automatically ensures that a running fan is correctly positioned. The ABBI-FAN 140-XXP fan is equipped with a permanent magnetic motor and accompanying electronic control.