Sukup Manufacturing Co.

Split Plenum Axial Dryers



Sukup Dual Fan and Heater Grain Dryers allow you the choice of full-heat drying or heat/cool drying. Both methods are performed efficiently and economically by Sukup Grain Dryers. Sukup Dual Fan and Heater Dryers have an internal divider between the plenums, so each fan and heater blows into its own chamber and is not affected by the other.  This allows them to dry in Full-Heat mode with staged drying temps, where they may run very hot on the top chamber and cooler on the bottom chamber to preserve more grain quality.  Dual Fan and Heater Dryers can also run in Heat/Cool mode where all the drying is done in the top plenum and the heater is turned off in the bottom plenum. Dual Fan and Heater Dryers allow you to run a larger dryer on single-phase power than you could a Single Fan Dryer.

2/3-1/3 Split or 50/50 Split

Dual Fan and Heater Dryers are available in two different fan configurations, 2/3-1/3 Split, or 50/50 Split.  2/3-1/3 Split dryers are the more popular and economic style. They are easy to recognize because the top fan is always larger diameter than the bottom fan.  When running in Heat/Cool mode, 2/3 of the dryer is heating or drying grain and the bottom 1/3 is cooling. Grain is typically approximately 20°-30°F above ambient temperature. 

50/50 Split dryers have two fans of the same size.  They can also run in Full-Heat or Heat/Cool mode.  These dryers are typically purchased to run in full-heat mode and get a little more airflow, and as a result, higher capacities, than a single fan dryer.  When running in heat/cool mode, they will discharge grain very near ambient temperature, but they will have less capacity than a 2/3-1/3 split because only half of the dryer is heating while the other half cools.


The QuadraTouchTM is the simple-to-use touch screen control system used on all Sukup Grain Dryers. 

Extremely user-friendly menu-driven system - for those who are not tech-savvy

Designed to eliminate around-the clock monitoring and increase productivity and efficiency.

Advanced algorithms and calculus are used to increase dryer efficiency and reduce large swings in temperature and discharge moisture.

PLC-based system is built to withstand harsh environments.

Can be remotely-located up to 200 ft. away from dryer

Received an AE50 award from the American Society of Agricultural and Biological Engineers for outstanding innovations in agriculture.

Click here to see the QuadraTouchTM in use.

Quad Metering Rolls

Sukup's exclusive, patented Quad Metering Roll System is standard on all Sukup Portable Grain Dryers.

Reduces moisture variation and maintains grain quality without blocking airflow or creating spots for debris to accumulate.

By using two metering rolls on each dryer column, Sukup is able to pull grain down the drying columns at different speeds.

The inner, hotter layer of grain is pulled down the column faster than the cooler, outer layer. The process produces more even moisture content of the dried grain, minimizes damage, and maintains higher test weights and overall quality.

Metering roll speed varies depending upon the actual moisture content of the discharged grain.

The Sukup Quad Metering Roll System received an AE50 Award from the American Society of Agricultural and Biological Engineers.

Click here to see the Sukup Quad Metering Roll System in action.

Automatic Moisture Control

Sukup was the first company to make true moisture sensing standard on its dryers.

Sensing the moisture content, rather than temperature, gives a more accurate measure of drying progress and results in more consistent final moisture content.

Moisture content information is collected from the sensor located in the discharge tube.

Fans & Heaters

Axial fan dryers are low-speed fans - 1750 RPM

Low-speed axial fans are quieter than traditional axial fans used for in-bin drying and aeration because they run at half the speed. 

Sukup fans are well-known within the agricultural industry for their high airflow, efficient operation and excellent

Electronic Mod-Valve

Electronic modulating valve heater controls provide computer-controlled gas flow to maintain plenum temperature set by the operator.

This system is much more fuel efficient than on-off or high-low controls.

Plenum temperature can be easily adjusted from the control box.

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