Accessories
Grain Systems Distribution offers a complete selection of air system accessories and replacement components to help keep your grain handling equipment operating efficiently. Our product lineup…
Vari-Air Complete Systems
Vari-Air Complete Systems from Grain Systems Distribution provide a flexible, air-powered grain transfer solution built for agricultural applications. Designed as a pressure conveying system, Vari-Air helps move grain efficiently while giving customers a more adaptable option for layouts where traditional mechanical conveying may not be the best fit.
At the system level, Vari-Air is built around coordinated core components rather than a mix of separate pieces. The catalog states that a Vari-Air Complete System includes the blower, air lock, motors, and VFD control, giving customers a more complete package for new installations and system planning.
The GSD Advantage
Built for Flexible, Controlled Grain Transfer
Vari-Air is designed to support grain transfer with a controlled, variable-air approach. The catalog identifies the pressure blower as an industrial-duty tri-lobe blower unit with an inlet suction silencer, TEFC motor, AutoCorrect PSI / VFD motor controller, soft-start controller, pressure safety valve controller, airflow check valve, ball valve shut-off, and air pressure gauge. It also describes the airlock unit as an industrial-duty rotary airlock with drop-through housing, direct-drive right-angle gear reducer, TEFC motor, and chain/sprocket to the airlock.
That combination helps make Vari-Air a strong option for applications where consistent system control, flexible placement, and dependable grain movement all matter.
Complete Systems, Not Just Individual Components
One of the strengths of Vari-Air Complete Systems is that the major operating pieces are designed to work together as part of a full package. The catalog explains that the control panel includes a Variable Frequency Drive for the blower motor, automatic and manual operation controls, an air pressure regulator, and a choice of interior NEMA 1 or exterior NEMA 3R enclosure. It also notes that the panels are UL / ETL listed.
For customers planning a new air system, that kind of packaged approach can help simplify system selection and better align the main components from the start.
Available in 5-Inch and 6-Inch Systems
The Vari-Air catalog notes that complete systems are available in 5-inch and 6-inch diameters, with system capacity charts based on conveying #2 yellow corn. For 5-inch systems, the chart lists configurations from 20 HP to 40 HP with bushel-per-hour ratings that vary by transfer length. For 6-inch systems, the chart lists configurations from 50 HP to 75 HP, again with throughput changing based on system length. At shorter 50-foot lengths, the chart shows 5-inch systems ranging from 1,177 to 1,926 bu/hr, while 6-inch systems range from 2,354 to 2,675 bu/hr depending on horsepower.
Indoor and Outdoor Configuration Options
Vari-Air Complete Systems are also designed with installation flexibility in mind. The catalog outlines four main indoor/outdoor configuration options:
- VFD Indoor / Blower Indoor
- VFD Indoor / Blower Outdoor
- VFD Outdoor / Blower Indoor
- VFD Outdoor / Blower Outdoor
For systems where the blower is placed outside, the catalog notes that units include a remote airbox and Whirley intake filter. This gives customers more flexibility in matching the system layout to the site rather than forcing all components into one fixed arrangement.
