The J&D Manufacturing 72" Mega Direct Drive Exhaust Fan sets a new standard in large-scale barn ventilation performance and reliability. Powered by a 4.0 kW IP66-rated permanent magnet direct-drive motor with an integrated variable-speed driver, this fan delivers up to 64,057 CFM - among the highest outputs available in any barn exhaust fan - with no belts, pulleys, bearings, or tensioners to service. Available in galvanized or poly propeller configurations, the Mega Direct Drive is purpose-built for dairy, poultry, livestock, greenhouse, and industrial operations where maximum airflow and minimal maintenance are non-negotiable.
Features & Benefits
Permanent Magnet Direct-Drive Motor - Zero Maintenance: Eliminates belts, pulleys, bearings, tensioners, and greasing - reducing scheduled maintenance and virtually eliminating drivetrain failures.
IP66-Rated Totally Enclosed Motor: Fully sealed against dust and water ingress for maximum reliability in the harshest agricultural environments.
Integrated Variable Speed Driver: Onboard driver enables precise airflow control without a separate VFD, simplifying installation and reducing component cost.
Soft Start: Gradual motor ramp-up on each start reduces mechanical stress and extends fan life.
Galvanized or Poly Propeller Options: Choose the prop material that best suits your application and corrosion resistance requirements.
UV-Resistant Fiberglass Housing & Cone: Smooth molded exterior resists UV degradation and is easy to clean for low ongoing maintenance.
High Performance & High Efficiency Models: Standard model delivers up to 64,057 CFM; HE model exceeds 23 CFM/Watt for maximum energy savings.
Backed by a 2-Year Warranty: J&D's industry-standard warranty on all Mega Direct Drive fans.
