Combines Rotor sweeps

Here are some links you can cut-n-paste for pics of the steep pitch helicals over the concave section - compliments of tbran. I still need to get these onto the Hyper Mod site. In fact, there are several things I need to get updated there... http:__img67.exs.cx_img67_2222_helical10dg.jpg http:__img67.exs.cx_img67_8607_helical26wi.jpg http:__img67.exs.cx_img67_5959_helical39ls.jpg http:__img67.exs.cx_img67_7319_helical44wj.jpg Tom langan

So far you only get them from me. I sell a basic set for $410US and that is for the large P3s. With a basic set you still have 6 cylinder bars spining in row A (bars next to discharge) and 6 in row B (bars next to concave). Some guys run two sets on seperator side. I got one guy that likes to run 16 30" rows of tough edible beans with 250RPM at nearly 5MPH and he has the cylinder all covered with sweeps except for 4 cylinder bars in Row C and 4 in Row D. He even runs his approx 120bu corn and sunflowers with that rotor. Anyway get me an address and I'll get you some pictures. I have to take some better ones for Tom's mod side someday. Catch ya later

Thanks. Now I am getting picky. How about a picture of where they intersect with the regular pitch helicals. I want to know what to do at that transition area on a large P-3.

can I get pics of them pls, thanks

The 2nd picture I listed shows what you are looking for. looks like they don't intersect at all - they stop ahead of the separator concave. Beyond that, I couldn't tell you much more - we haven't done this mod to our combine yet. We probably will be though as our helicals are getting worn to the point that they need to be replaced. Tom langan

Toms got it right. The way Tim has did it in pictures is the helical that starts just behind concave and next to gearbox brings straw around and drops onto helical filler over corner of feeder opening which drops onto side of seperator grate. The next one follows same pattern and drops just ahead of seperator grate. He has removed just enough of the normal pitch helicals to run them two long steep pitch ones. If you were to install more long steep pitch you would just keep moving over and they would just drop straw further over in front of separator grate. To complete thresher side only with steep pitch on the large P3s you would need a total of four long and one short steep pitch helicals. Normal pitch helicals just take over after seperator grate. You may note Tim has a helical ahead of the 1st helical which would move over the straw that slips over the 1st and 2nd helical. I made a post down under the chat about mods awhile back that describes the approx turns the straw would make depending on the helical setup you go with. Hope all that made sense. Good luck

Is anyone noticing any extra rotor loss with the steep pitch helicals over the threshing section. I can see where it helps to stop cob breakage and less straw damage. TIA Blue

We have not noticed any problem with loss. I can only report of one time that a guy supposedly had normal pitch reinstalled. This was a custom harvest guy from Kansas (Kasprick I believe). He installed some level of steep pitch helicals. I realy don't know how he did it or what he may of tried to prevent loss. I had just asked one of the guys on techvan if they had run into him and how he was doing. This guy had said they put back to standard. This could be bogus for I never heard from Kasprick. I wish I had talked to this Kasprick for as far as I know he is the furthest back I can trace the extending the cylinder bar to discharge trick. When learned of that trick at the same time as we got the feeder shock thing going and that just turned these machines around in this neck of the woods. Anyway I would like to know if he had any loss to speak of and if normal pitch helicals changed anything. As I mentioned under subject mods a few weeks ago you can install steep pitch on thresher side and still have no chance of flowing straw any faster than the the small or short P3 does right from the plant. I might add that the small or short P3s, which we sold quite a few of in the late 80s early 90s, work much better in the tough going than the large or long P3s before some of this hyping. Steep pitch helicals just gets closer to duplicating them plus it helps prevent concaveing the death out of some of these crops. I would also say that steep pitch helicals didn't gain us earth shaking capacity but it does surly help keep things even over concave and prevent the double thresh. Rotor sweeps are the next best improvment to keep seperator side flowing and even. They have little chance of moving things to fast for material would only bump up against back side of helicals preventing it from moving to fast. They are likely helping to spread material between helicals which likly reduces loss. like I said before this is work in progress and a more radical rotor design change is in the works. Gleaner has such a near perfect system to work with. Sorry so long. Have a great day.