Fans and Heaters

GSI manufactures a complete line of aeration and grain conditioning systems to help maintain grain quality. Choose from a variety of high efficiency vane axial, centifugal and inline centrifugal fans and heaters, all with features designed to reduce cost and boost performance.

Vane Axial Fans

For application requiring high airflow at static pressures below 6”, GSI offers vane axial fans in 12” diameter (1 hp) through 28” diameter (15 hp). Vane axial fans 18” and smaller use cast aluminum blades. Vane axial fans 24” through 28” use durable composite airfoil blades that are lightweight for easy starting and function well in this type of environment.

The 12” through 28” (1-15 HP) units feature a 3450 RPM motor for increased fan performance and energy efficiency. Close fan blade tip clearance and straightening vanes provide maximum air flow and reduced turbulence to ensure smooth and consistent airflow.

All 24” and 28” vane axial fans also include an inlet venturi which funnels air more efficiently into the fan. Venturis and grill guards are corrosion-resistant painted for longer life.

Vane Axial Fans

Inline Centrifugal Fans

Aeration jobs at high static such as with milo, wheat or rape seed require special consideration. Aerating tall hopper tanks presents another challenge. The inline centrifugal fan is designed to handle both of these applications effectively.

Suited for higher static pressures, beyond the performance range of vane axial fans, the inline centrifugal fan offers similar static pressure capabilities to a 1750 rpm centrifugal fan at a lower cost.

Inline Centrifugals can not be used with heaters due to their design.

Inline Centrifugal Fans

Centrifugal Fans

1750 RPM Centrifugal Fan

Built with a heavy galvanized steel, scroll-type housing and inverted inlet venturi. A non-overloading backward-inclined airfoil wheel provides high airflow with a long motor life. These fans operate at a reduced noise level and are designed to accommodate a variety of heaters for use on drying bins where higher capacities are required. Models are available from 5 – 50 HP with static pressures up to 11”.

3500 RPM Centrifugal Fan

GSI also manufactures a 3500 RPM centrifugal fan designed to operate in static pressures up to 22”. These fans are used primarily with tall tanks or small grains tanks with high resistance to airflow.

Centrifugal Fans

Vane Axial Downstream Heaters

Whether natural air-drying grain or heat drying, all GSI “drying” fans have the option of adding a heater. With capacities up to 3.0 million BTU/hr., our vane axial fan and heater combination provides the very best in high capacity grain drying. Vane axial heaters are available in 18” through 28” diameter, liquid propane, propane vapor or natural gas models.

Vane Axial Downstream Heaters

Chi-Town Upstream Heaters

GSI’s “Chi-Town” heater is a low to medium temperature grain drying system that is typically used with GSI’s centrifugal fans. Capable of .3 to 1.1 million BTU/hr., and available in propane vapor or natural gas, “Chi-Town” is perfect for the drying/aeration of rice, corn or other select grains.

Chi-Town Upstream Heaters

Centrifugal Downstream Heaters

GSI’s downwind centrifugal burner is a high efficiency option to compliment our high capacity centrifugal fans. Specially designed burners are adjustable for uniform heating temperatures with a choice of liquid propane, propane vapor or natural gas. Available for GSI’s 1750 RPM (10-40 HP) centrifugal models, the downwind centrifugal burner is capable of capacities up to 4.2 million BTU/hr.

Centrifugal Downstream Heaters