Combines Proto type rotor

[tj]

Also would like to know how the bars mount -- in order to save expense, we've always built our rotors so that bars from the old rotor can be retrofitted.

 

[NDDan]

The one I saw was open on back side of bar mount so you can use the normal bars. The bars are also tilted like on standard P3 rotor. The crown of rasp runs same clearance to concave as trailing tip of rasp. My bet is production will be like that. Don't know why they tilt bar into flow but maybe there is less chance off brusing popcorn or that type of crop with the leeding edge of bar. Maybe better chance a guy can reverse bars also if done in time. I remember on old conventional rasp bars that were not tilted into flow they recommended against reversing bars if worn past the crown. I guess you couldn't get back to true zero clearance if crown was gone for the close clearance crops. I suspect well see final product this winter. Take care.

 

[Rex]

Can't do a picture for everyone, I'll let AGCO do that if they want, I think it was the smaller diameter rotor, and I really didn't look how the rasps were connected. I really hope they can get this rotor (and I'm guessing),improvments to it, out in the marketplace. If you have ever done edible beans, you'll sleep beter at night knowing you won't fight tough windrows like before. We hope to keep it for wheat harvest this summer, (Hope!),nothing said yet. Dealer is going to replace some of our worn cage this winter, maybe I'll get a closer look at any wear and tear to the rotor. I't looks good from ouside the cage looking in.

 

[silverluv]

Dan, I saw that proto-type rotor at our local dealer. They removed it out of a 65 and the company does not want it back in the machine for some reason. It is an enclosed cylinder with the bars raised slightly and open in the back to access the bolts. The paddles look exactly like the paddles on the old sunnybrook rotors. The sweeps are right on the end next to the paddles on every bar. Wish I would have a digital camera. I tried the helical bar set up that you sent me. looks great. When I saw the pictures, it was like Dah. Right away I knew what you were talking about. To me the orginal routing now looks like a factory flaw. Wish I had some tough grain to try it in. Talk to you later.

 

[tj]

Don't know why they'd tip the bars forward -- using the leading edge for feeding provides for more aggressive carry thru requiring less HP and lowering cylinder speed requirements. Also you get a little angular deflection by setting bars flat and wear pattern is also different and bars will last longer. That's why the rotor is smaller diameter, however -- at this mounting angle, the braces which hold the rear of the bar mount would need to be fairly long and would have a lot of vertical pressure on them.

 

[Silver_Bullet]

To install a Sunntbrook rotor, we place two peices of 3" pipe that are about 4' in length in the bottom of the cage at the 5 o'clock and 7 o'clock position, place the rotor on the pipe and slide in. You have to use a pry bar a little to line up the splines at the gearbox but otherwise this works pretty well.

 

[NDDan]

Yes I was imformed just lately they had a rotor. I tried very hard to get one earlier and now have the OK to pick that one up. I'm sure Gleaner wants standard rotor put back in that machine for that was only a proto and will need a good check over before any more testing. The rotor I saw also had the rolled back discharge paddles just like Sunnybrook has. We would install straight paddles or better yet extend cylinder bars into that area. The sweeps you saw on that rotor are only there to keep material moving the last few inches before discharge for they do not have cylinder bars extended to discharge. What you didn't see and I haven't yet either is the sweeps or shark fins they put inbetween the bars on seperator side. REX described this a bit a couple monthes ago on similiar post. You definitely need these for tough edible beans or it still wouldn't work for that crop. I bet it will shine in tough soybeans also or any tough crop for that matter. I have tried the Sunnybrook gen 2 in edible beans also and it did no better than stock rotor. I made up a set of sweeps to fit and operator said that '92 R72 was the smoothest running Gleaner he has ever run and he has run alot of them some newer and some older. I hear you on helicals for once we did our first one we havn't put another rotor back in with copying it. I don't know how that rotor worked for your dealer but I bet some sweeps and straight discharge paddles would of been enough to get some serious attention and praise. Have a good one.