Grain Handling

Grain handling capacity that keeps you running

High yields, tough schedules, and the Dyna-Flo II Cleaning System. Together, these factors necessitate a clean grain handling system that can keep up with your harvesting pace. Here’s how the STS combines deliver:

Clean Grain Elevator Capacity – Our 9770 and 9870 STS machines boast a 98-bushel per minute capacity, so you won’t be slowed by plugging. The 9670 has a 79-bushel per minute capacity, and the 9570 STS handles 73 bushels per minute.

High Unload Rate System – 91 seconds (that’s 3.3 bushels/second) is all it takes to empty the 300-bushel grain tank that’s base equipment on the 9670, 9770, and 9870 STS combines.

26-ft. unloading auger – 3.5 feet longer than any predecessor, this unloading auger pairs ideally with the 640D Draper Platform. The extra length makes unloading on-the-go a stress-free operation.

Today’s wider, centered platforms require a longer unloading auger. Our optional 26-foot auger keeps in-fi eld unloading easy for both the combine driver and the grain cart operator. To ensure reliability, we redesigned both the auger and the support structure. A cast unloading auger turret brace helps carry the increased load and torque found with this larger auger. Plus, we added extra steel to the grain tank, thicker fl oor sheets, and more support on the right-hand side of the combine.

Clean Grain Handling: A Closer Look

The clean grain handling system on the 9770 STS and 9870 STS Combines keeps grain from ‘stacking up’ at the clean grain elevator. Larger upper and lower clean grain augers help preserve grain quality. Elevator drive sheaves are bigger, for more positive belt wrap, while faster elevator paddles move grain away from the cleaning shoe quickly.

Rotating beacon lights on all 70 Series STS combines offer two benefi ts: First, all three turn on automatically when the grain tank is 3/4 full, and again at full, so the grain cart operator knows he’s needed. Second, they activate when road transport lights are on for added safety. Two beacons are located on the front corners of the grain tank and a third is mounted on the rear of the combine for added visibility.