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Post by rod on Jan 22, 2021 0:29:12 GMT -6
What type of knife section (called sickle sections for you lot!) are people using in their grain heads & why?
Fine or course section ...... why?
What's the science behind your choice?
What's the science behind what section cuts better in what crop at what speed?
Is there a cutting efficiency affect on course or fine sections at different speeds?
Do course or fine sections cut better in green straw crops?
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Post by shmiffy on Jan 22, 2021 1:22:31 GMT -6
Coarse. That’s what came on it. Supposed to be better for doing lentils.
MacDon coarse sickle sections hold their cutting edge longer when dirt and debris are overly present in the cutting components and should be used when you are cutting close to the ground. Provides optimal cutting abilities in thin stem crops, and crops with higher moisture content.
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Post by rod on Jan 22, 2021 1:51:56 GMT -6
Coarse. That’s what came on it. Supposed to be better for doing lentils. MacDon coarse sickle sections hold their cutting edge longer when dirt and debris are overly present in the cutting components and should be used when you are cutting close to the ground. Provides optimal cutting abilities in thin stem crops, and crops with higher moisture content. "Provides optimal cutting abilities in thin stem crops, and crops with higher moisture content." Why ..... what's the science here? I don't necessarily disagree but what's the scientific explanation as to why? I've used course & fine in all sorts of crops & I can't tell you why one works better than the other - in the same crop, same conditions ...... then other times it doesn't. |
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Post by meskie on Jan 22, 2021 11:18:49 GMT -6
We use corse on our combine and fine when we cut hay. Was always told fine tooth for fine stems and corse tooth for course stem. Our combine header does a terrible job of cutting grass when we go through a slough more rips it then cuts.
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Post by Albertabuck on Jan 22, 2021 13:51:33 GMT -6
Fine tooth for fine or hard to cut stems, coarse for large easy to cut. Over serrated for mostly dry conditions and longer guard life but they will gum up in wet conditions, under serrated for wet and gummy, but causes higher wear on guards.
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bob123
Full Member
Posts: 246
Likes: 164
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Post by bob123 on Jan 22, 2021 17:10:45 GMT -6
I found that the course lasted 2 or 3 times longer for me then fine so I switched to that. I cant say I remember much of any speed difference when new in the the crops I mainly harvest(wheat, canola, beans), but the fines slowed me down sooner. I switched to extra course the season mid bean harvest when I had trouble in the thickest bean stems I've seen and they were a huge improvement but my current knives had seen a few thousand acres. Saw them on the counter at local dealer and they said I was the first person to buy a set so I guess we'll see how wheat works with them Attachments:
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Post by snapper22 on Jan 23, 2021 20:59:36 GMT -6
Use coarse on the swather. Have had better luck on canola with these. Combine header are coarse too. Most run coarse around here. Far as hay cutting use a disc now but used fine when we had a haybine. Fine sections dulled faster than coarse but both break and tear section bolts when you try to cut rocks or too many willows.
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crtoney
New Member
Farming, Ranching and Fixing Kitty Litter SK
Posts: 10 Likes: 13 
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Post by crtoney on Mar 22, 2021 20:52:24 GMT -6
I use 10 tooth per inch on my headers and my haybine. Seem to work best.
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