Which came 1st -APS or the Rotary Separator? - The Combine Forum
 
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post #1 of 5 (permalink) Old 10-08-2010, 11:07 PM Thread Starter
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Which came 1st -APS or the Rotary Separator?

After spending some time running a CX840, and having a demo 580R 2 years ago, I ask the question -who skirted whose patents?

It seems that the APS (Lexion) /rotary separator (NH) are almost identical in design, just different in placement. Does anyone know when the APS came in the Lexions? I assume that the TX was the 1st NH to employ a rotary separator.


If you were comparing walker to walker, where is the best location for the extra cylinder? Lexion likes APS to condition the crop mat before the threshing cylinder and get an initial thresh on easy crops, but NH likes the RS in order to get 50 to 80% separated before the walkers.

No fighting, and no talk of the rotary Lexions.

Increase in Marketing > Increase in Yield > Increase in Land Base

Diverse crop rotation, increased residue retention and minimized tillage will increase yield and crop health more than anything we can spray or spread at litres or pounds per acre.

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post #2 of 5 (permalink) Old 10-08-2010, 11:17 PM Thread Starter
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Update -CX brochure says 1st rotary separator was on the NH 1550 in Europe in 1973.

Increase in Marketing > Increase in Yield > Increase in Land Base

Diverse crop rotation, increased residue retention and minimized tillage will increase yield and crop health more than anything we can spray or spread at litres or pounds per acre.

http://andgronomy.blogspot.ca/
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post #3 of 5 (permalink) Old 10-08-2010, 11:36 PM
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After running tx's for I don't know how many years and cx's for seven years the aps is in the way better spot. It ability to smooth out the crop flow before it hits the main treshing cyclinder makes it much easier to run the machine at capacity without the engine load bouncing all over the place. In canola is where it really makes the biggest difference in lumpy swaths and in wads there is just no comparison. I'm sure some of it has to do with the hydraulic pressure breakaway on the concave but the aps still makes a bigger difference. I don't think the rotary seperator is a bad idea I just think the cx would be better off with it up front as well. The other good part about the aps is that is runs slower than the main treshing cylinder, therefore making crop acceleration a lot more gentle than from going straight from the feeder house into the main threshing cylinder which is why we are able to run way higher cylinder speeds with our lexions and still not crack canola. Which of course the cx's are well know for, although not as bad as the tx's. The only thing that makes my opinion a little bit off is that of course we have rotors behind so I can't comment on what system puts more grain over the walkers. A combine specialist from claas told me that the claas rotaries save a lot more grain than the claas walkers. So take that for what it's worth. I can say for sure that the claas system is a lot better and smoother at taking the crop in.
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post #4 of 5 (permalink) Old 10-08-2010, 11:52 PM Thread Starter
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I was picking up swathed cereals that had rain on them this afternoon and I really noticed the fluctuating engine load in that. Probably would be different with something with more than 290hp, but still it was very noticeable. I didn't remember that when running the 580R in swaths. Maybe an APS in front with a rotary separator behind would make a wicked walker machine. Don't let Deere read that though, they might have to copy it!

Increase in Marketing > Increase in Yield > Increase in Land Base

Diverse crop rotation, increased residue retention and minimized tillage will increase yield and crop health more than anything we can spray or spread at litres or pounds per acre.

http://andgronomy.blogspot.ca/
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post #5 of 5 (permalink) Old 10-09-2010, 11:51 PM
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I agree with your thinking. If losses out the back is an issue maybe another cylinder would help. I don't think it would be any worse with less hp but picking up a swath will make it worse than straight cutting with a smooth feeding draper head. I bet having a draper head alone would give you a greater increase in capacity in a cx than it would in a lexion.
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