Harvest Showdown

[farming101]

Interesting comments on cleaning grain from different color combines.

After cleaning grain for way to long my observation is that HRSW is likely the only grain that comes down to type of combine. If someone is going after the last small kernel or two with a conventional of any color cracked wheat will shovel out of your cleaner like nobody's business. You can tell in the first minute after the grain hits the screen. Rotaries crack way less; with the larger diameter rotors cracks can show up.

Most else is operator settings, harvest speed, preference, quality of crop stand, terrain, and what shape the machine is in.

[JDGreen]

And very true comments. Already gearing up for some plant changes to deal with increased trash from a very difficult harvest thus far. Won't matter what color.. All will be more difficult this year

[fjlip]

To achieve our "clean undamaged" wheat we run all small wire concaves, 4 cover plates in 1,2,4,&5, clearance at 14, rotor at 980, chaffer at 14, sieve at 5 and fan at 1100. How does that compare with others?
Jay Dee suggests that 14 concave, promotes grain to thresh against itself in the rotary. Too tight and it just augers out the back and takes huge power/fuel.
A conventional/Claas threshes by IMPACT, one chance and into walkers/rotors. Needs near zero clearance. Agree?
A plus for the rotary is wheat/barley/oats straw turns into DUST. Had a hell of a mess with long straw/harrowing/seeding after 9600.

[Klause]

Claas is a 3 pass system. 11mm clearance 750 rpm on cylinder to thrash wheat. 0 whitecaps and 0 damage.

[fjlip]

I saw the APS, but what is the third, rotors threshing some? At 11mm the 9600 would leave kernels in heads. If no damage they have it figured out. Wonder why their cleaning area is so low loss?
9870 Rotor 700, concave 25, fan 800, chaffer unchanged, sieve 4, in canola. How is Claas?
Is the straw chopped spread fine like a rotary?

[foragefarmer]

Klaus

"0 whitecaps and 0 damage."

Looking at your attached sample, are those not "White Caps" in the top left hand corner of your sample?

[Klause]

The threshing system is an aps, cylinder, rear beater, and rotors.


The rotors basically separate the grain from the straw but also act as a final rethrasher for the straw... the rotors are super long - longer than the big rotor in our Massey and there's two of them.


As far as straw chopping it depends on the chopper on them and how much power you want to put thru it. thi's is pea residue. If you slow the rotors down you can save all the straw and it's like baling behind a conventional but you loose capacity if you do that.


Forage that sample is a rep sample of our wheat. We have two combines. The other one isn't a claas and doesn't make that good a sample.


For instance lentils. First sample is the 8570 2nd is claas 470