Combines Finished harvest love CDF

I am glad it worked so well for you. What model combine do you haveIJ It is always nice to hear results whether they are good or not so good.

We really like ours too. I don't know that capacity in corn is really increased much, but in 25% corn it is very easy to make a super clean sample with less cracked kernals. In beans is when we saw the huge difference. Burned much less fuel and got across more acres per day. Grain sample had much less dirt in it. In good conditions we saw a small imporvement in cacity, maybe 10%, but in tough conditions we could run 50-100% faster. I think we'll pay for it in two years with fuel savings alone. It makes sense when you think about it. You run much more material out the spreader instead of across the sieves. We ran a standard rotor and CDF in the same field and the amount of material that comes out the spreader of the CDF may be twice that of the standard.

Would like to know your settings, so far ours in our 2006 R65 with the new Sisu engine burns lots and lots of fuel, in corn and beans and grain we are burning between 14.5 and 15.5 gallons an hour, our Cummins was better and i realy think i liked the old standard rotor tweaked better. Could you tell me all your settings including the sieve and chaffer, we are running the rotor at around 300, set up near .98 concave clearance, top sieve set at 6 and bottom at 5, we get a little too much cob and then if we push it it tends to come over the sieve, what are we doing wrong, like to know how you guys are setting them, thanks in advance.

Your Rotor is too slow and your concave too wide. 375-425 on Rotor Speed and about .5 to .6 on concave.

P.S. Yes the Sisu burns more fuel than a Cummins ever did. But maybe a Tier 3 compliant Cummins would not be any better.

Guys , have a 98_r52. Curious to @ how much it cost to go to the cdf rotorIJ Is this the way to go or do the hyper-modsIJ jl

Turbo, i will try the rotor speed faster, i did lower the rotor lower but it makes it burn more fuel and grinds the cob up even more, i have it set so that if i have one half of the cob shelled off and have it so that the cylinder bars are just touching, if your sure on that cylinder setting i'll give it a try, thanks.

We had cylinder clearance at 12. Rotor speed at 400. We were able to set chaffer and sieve very "open". 3_4" for chaffer and a good 3_8" for seive. I bet at least 95% of the cobs left the combine out the rotor discharge so there was just NOTHING on the chaffer but a few pieces of stalk. Our R-72 is a '94 so we are still very much enjoying the fuel economy and power of the Duetz engine. I know so many here do not speak well of them but we have had very good luck with ours. Several neighbors with Cummins powered R-72's and 75's complain about lack of power...we've never had that problem. Have over 3500 hours on both our R-60 and R-72.

Have never had R-50,52. From what I see of my neighbors I think they break less cob than the 62-72's. So maybe the CDF isn't as necessary in those. That said, we've had all the hyper mods. in our machines for several years and there is no comparison we like CDF better. I think our dealer got a couple of CDF's in some R-52's. I'll ask how they worked. I did ask at the dealership one day how others like their CDF's and all he said is everybody loved them and wished they had them 20 years ago. I'll ask specifically about the R-52's.

Make sure you have concave zeroed out when it is completely closed with the front concave set at .3 to .4 inches (I think) Then i open concave to 3_4 to 1 inch at narrowest spot. (The width of a corn cob) That is the bar on concave right at the top of 1st concave. Your indicator in cab will probably read .5 - .6 then.