Looking at a 780TT

I'm thinking a big increase from a 670. I ran a 780 for many years and averaged 17-19 acres/hour on a full season in heavy crops(60 canola, 90 wheat, 170 oats, 55 soybeans type of crops). The high speed rotors available in later 780's add probably close to 20% in cereals where you have heavy straw and tough conditions, ran side-by-side with a non high speed 780 for a full season and they ended up buying and swapping gearboxes later to make it a high-speed 780!

I've actually seen 4000/hr in oats and 2200/hr in wheat under ideal conditions but would never claim that as an average, kind of a once per year when it's a cloudy day in a nice field and you can hit power limit. Usually under a half bushel loss in wheat and I tried to keep it under .33bu/acre in canola. Straight cut everything and was doing lots with Vario header. I think in dry brittle canola a Macdon head might lose more than the combine when it's dialed in. Really only ever ran power limit under ideal conditions and after dark with tough straw, never was able to use more than a tank of fuel in a day although I got it to 4% a few times. 

Only drawback with a 780 other than the creature comforts that came in the 8000 series is that you cannot add a hopper extension which would be nice. IMO the 780 is/was the pinnacle of harvesting capacity for small grains and I have seen nothing since that comes close under a wide range of crops and conditions.

You will be shocked at what they are capable of, just don't take it into a dry brittle canola swath or it will be a normal combine. Need to play to the machines strength and the huge separating area that you can open and close is an advantage over every other machine on the market. I've gone to not desiccating and straight cutting for probably 5 years now and working great. Run a tight pinch point on the concave, I tell tech to go 2MM at rear to force that grain out. Generally run tight concave and only what needed to thresh but not damage grain. Narrow concave helps keep rocks out of the machine.

Took me two years to fully learn the Claas settings and what to avoid. Now I do pulse seed production and every year my germ is as good or better than rotary combines, it's all in the settings!

After having the 8700TT for one year I decided I wanted to go to two machines and wasn't going to buy another new one, so currently running two 750's. Not the capacity of the widebody but still a big combine, two is working nice for making the cart and truck more efficient as well.

We have run a 2013 780tt for a few years and are around the 16-18 acres/ hour on all the years we have owned it. No high speed rotors in it but would make a big difference as rotor loss slows us down I alot of the time.

We also have a 2017 780tt that we have run along side it for a couple years. Last year wasn’t much of a test but this year it was slightly more capacity even running a 5’ smaller header.

1000 in canola should be doable we are normally in the 900-1100 range depending on conditions. Was down to 750 this year in swathed canola that was really dry.

2000 in barley might be pushing it. I find that’s the worst crop for our 780 to do. Seems to over process it then overloads the sieves. Or we have so much straw it comes out the rotors. 1800 should be easy to do.

Was looking last week at 2020 8700 .
I’m aware that rotorgrates are to course apparently, but if rotors are removed could you just weld rods in there length wise to cover holes ?
Would that make it he same as 2021 models , and overloading shoe is history??

This small grain machine , no updates done and claas says it’s all yours .
not sure if there was updates paid by claas . Deale in Kinistino didn’t do it and there are several units like this .
claas thinks the problem isn’t big enough,but the cost to replace apparently is $17000 parts . No deals….
But if I can weld some strips over the grates and cover 40% it’s maybe same as old 700 series 
thank for reply