J&D Manufacturing Direct Drive Storm Exhaust Fan, 55" - 31,813 CFM (Aluminum Shutter, Single Phase, 230V with Cone) – 31,813 CFM

The J&D Manufacturing Direct Drive Storm 55" Exhaust Fan brings next-generation motor technology to high-volume barn and greenhouse ventilation. Built around a totally enclosed, IP65-rated permanent magnet direct-drive motor with an onboard variable speed driver, this fan delivers precise, infinitely variable airflow control without a VFD - simplifying installation and eliminating the cost and complexity of external drives. With no belts, pulleys, bearings, tensioners, or greasing required, the Direct Drive Storm is essentially maintenance-free, while soft-start functionality and surge protection extend fan life in demanding agricultural and industrial environments. Available in single-phase (230V) and three-phase (208-230V or 460V) configurations with aluminum or poly shutter options. Features & Benefits Permanent Magnet Direct-Drive Motor - No VFD Needed: Variable speed control is built in via an onboard driver, eliminating the need for an external Variable Frequency Drive and simplifying installation and wiring. Totally Enclosed IP65-Rated Motor: Fully sealed against dust and moisture ingress, the high-efficiency PM motor runs cooler than conventional motors, extending longevity and reducing failure risk in humid agricultural environments. Zero Maintenance Design: No belts, pulleys, bearings, tensioners, or grease points - dramatically reduces scheduled maintenance and unplanned downtime over the life of the fan. Soft Start: Gradual motor ramp-up on each start reduces mechanical stress and extends fan life. Surge Protected: Built-in surge protection safeguards the motor and onboard driver from electrical spikes common in agricultural environments. Lighter Weight: Reduced motor weight compared to conventional designs makes assembly and installation easier, especially in overhead or difficult-access locations. Aluminum or Poly Shutter Options: Choose aluminum shutters for lightweight durability or poly shutters for added corrosion resistance. Galvanized Propeller & UV-Resistant Components: Corrosion-resistant galvanized prop and UV-resistant housing materials stand up to years of outdoor and agricultural use. Aerodynamic Fiberglass Housing with Slanted Poly Cone: Optimized airflow geometry delivers up to 34,763 CFM with industry-leading efficiency ratings validated in an AMCA-accredited air test chamber. Broad Application Range: Engineered for dairy, poultry, swine, greenhouse, and industrial ventilation where reliable, energy-efficient high-volume exhaust is critical. Technical Specifications Part # Motor Volts Amps Phase RPM Shutter CFM @ 0" SP CFM @ 0.05" SP CFM @ 0.10" SP CFM @ 0.15" SP CFM @ 0.20" SP FEI @ 0.10" Rough-In Dims VSA55G3CPM221AG-SL 2.2 kW PM-DD 230 13.0 1 600 Aluminum 34,763 33,326 31,813 30,101 28,333 2.00 59¾" W x 59¾" H VSP55G3CPM221AG-SL 2.2 kW PM-DD 230 13.0 1 600 Poly 33,949 32,588 30,891 29,205 27,044 1.88 59¾" W x 59¾" H VSA55G3CPM223BG-SL 2.2 kW PM-DD 208-230 8.6-7.7 3 600 Aluminum 34,638 32,953 31,370 29,998 28,327 2.00 59¾" W x 59¾" H VSA55G3CPM223CG-SL 2.2 kW PM-DD 460 4.0 3 600 Aluminum 34,582 32,998 31,469 29,894 28,288 2.04 59¾" W x 59¾" H VSP55G3CPM223BG-SL 2.2 kW PM-DD 208-230 8.6-7.7 3 600 Poly 33,807 32,319 30,577 28,835 27,081 1.90 59¾" W x 59¾" H VSP55G3CPM223CG-SL 2.2 kW PM-DD 460 4.0 3 600 Poly 34,223 32,690 30,974 29,127 27,275 1.92 59¾" W x 59¾" H