J&D Manufacturing Magnum 58″ Exhaust Fan
The J&D Manufacturing Magnum 58″ Exhaust Fan is a high-performance ventilation solution designed to move large volumes of air through livestock barns and agricultural buildings. Available in Standard and Super Magnum configurations, the fan combines direct-drive technology, variable-speed operation and durable, corrosion-resistant construction.
The Magnum 58″ is designed to operate across the full range from minimum ventilation to maximum power using a basic 0–10 volt control signal, helping eliminate the need for smaller fans in the ventilation system.
Key Features:
- 58-inch exhaust fan
- High airflow performance
- Direct-drive motor technology
- Variable-speed compatible
- Maintenance-free motor design
- Corrosion-resistant poly housing
- Stainless-steel frame and guard
- Durable poly damper doors
- 0–10 volt control compatibility
- Precise and uniform speed control
- Flush-mount installation
- Designed for minimum through maximum ventilation
- Available in Standard and Super Magnum configurations
High-Performance Livestock Ventilation
The Magnum 58″ provides the airflow capacity needed for demanding livestock ventilation applications.
The Standard Magnum delivers approximately 41,470 CFM at 0.10″ static pressure, while the Super Magnum is certified at 50,002 CFM at 0.10″ static pressure. The Super Magnum represents approximately a 20% increase in CFM over the Standard model according to the manufacturer.
Energy-Efficient Ventilation
Variable-speed operation allows the Magnum 58″ to provide precise airflow control across different ventilation requirements.
The Standard model is listed at 18.9 CFM/Watt at 0.10″ SP, with a Fan Energy Index of 2.18. The Super Magnum has a Fan Energy Index of 1.66 and an airflow ratio of 0.91.
The manufacturer also highlights the ability to slow the fan down while increasing CFM per watt, helping improve energy efficiency during lower ventilation demands.
Contact County Line Equipment to learn more about the Magnum 58″ Exhaust Fan and find the right ventilation solution for your operation.

J&D Manufacturing Brand Overview
Barn Ventilation Equipment
County Line Equipment supplies J&D Manufacturing ventilation equipment designed to support effective airflow, climate management and animal comfort across agricultural and livestock facilities. J&D offers ventilation and environmental control solutions for poultry, swine, dairy and other agricultural applications.
J&D’s product range includes exhaust fans, circulation fans, ventilation controls, air inlets, curtain systems, cooling and fogging equipment, positive pressure fans and tube ventilation systems. These solutions can be used for new barn construction, facility retrofits and ventilation upgrades.
Explore J&D Manufacturing ventilation equipment below or contact County Line Equipment to discuss the right ventilation solution for your operation.



