Combines big combine capacities

Your numbers are right. You are just going to work a little longer than 8 hours per day because you need to service, fuel, move to another field and you are going to have a breakdown sooner or later. But the capacity figure for the STS is right. I harvested 256.000 bushel of wet corn this fall in roughly 8 days of pure harvesting. That was with two lexion 470s pushing twelve rows. The yield monitor, that is absolutely accurate on a lexion, was reading 3000 bu_hr at 25-30% moisture quite often. That is about 2300 bu_hr dry corn. We ran STS's last year and they have great capacity, too. The lexion 480R is bigger yet and should have a 16 row corn head to really utilize its capacity.

So, in 150 bu._acre corn, with an eight row head, how fast would that kind of machine go(mph)IJ

Don't forget that 62's and 72's are capable of doing 3000 bushel an hour, also. No need to buy those high maintenance green ones. Kelly

30ft (12rows*30in_12) * 5260 (a mile in ft)* 42560(sq ft per acer)* 150 bu per acer = 545.45 (bu per mile per hour) 3000 bu per hour _545.45 = 5.5 miles per hour you would need to average 5.5 miles per hour including the turns etc in 150 bu. corn. Think this would be tough - if 200 bu per acer the necessary average speed 4.13 mph seems more possible.

We have a 2001 R62 that I run at 5.2 to 5.4 in 200 plus bu. 17.5% corn with an 8 row 30 inch hugger. Harvested close to 24000 bu. Friday off of 120 acres in 12.5 hours. Combine never stops and the grain cart has to fly though the field. Finally finished yesterday here in south central Nebraska. While on this subject I can't see where an R72 could do any better as I start throwing corn over the sieves if I go any faster. What do you guys thinkIJ I am trying to decide if I should trade up to an R75 next time. Thanks

This reminds me of back when we had an M3. My theory is that in high moisure corn, an l3 doesn't have any more capacity than an M3 since we would plug our clean grain elevator occasionally when we were pushing her. Since the l3 has the same size elevator, and it runs the same speed, that would be the limiting factor. Tom langan

Assuming 5.2 miles per_hour you were 76% effecient In another words you were not combining 24% of the 12.5 hour period. (turning - refueling - stopped etc.) If running a constant 5.2 miles per hour average in corn - you would have taken 9.52 hours. If true this would make the claim of 3000 bushels per hours problem-matic. Unless the 9650ST JD really does have a whole lot more capacity.

We did run up to 6 mph in dry corn with the STS pushing an 8row. Just depends on how dry it is. You get a lot more done pushing a twelve row, because it doesn't seem to slow you down as much, when you increase your harvested rows by 50%. And you don't turn around as much.

Remember the 3000 bu_h were wet bushels. That converts to about 2300 bu_h dry corn at the time and it was with a 470 lexion.