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horsepower needed for disc?

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Tracy Martin TN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Topic: horsepower needed for disc?
    Posted: 16 Feb 2017 at 11:39am
How much horsepower need for offset disc,6 1/2 foot, 100 pounds force per blade, 18 , 22 inch diameter blades total?  Soft ground and turf? Thanks Tracy
Liberals should know this by now. Voting for Obama the first time was ignorant, voting for him the second time was just stupid.
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allisrutledge View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allisrutledge Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 11:59am
Tracy, someone else may answer better but there is a lot of conditions that make a huge change in requirements .weight of the tractor and tire condition ,also is the pitch adjustable on the disc? I got a case (Burch)offset 12 ft wide ,26 inch blades.8010 is not enough at 100 up and 13000 lbs. 210 got the power but needs more tires. I am looking for duals now. 8010 will pull it. But a little more than it needs. Soil condition had a lot to do with it also. There may be a scientific answer but that is the best I can give. The hills and the clay here is something else. Scott
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allisrutledge Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 12:01pm
And always remember too much HP is never a problem!!!
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Stan IL&TN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stan IL&TN Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 12:48pm
Less that 500hp will work. Sorry that wasn't much help Tracy.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Hancock Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 1:01pm
Tracey, 
Years ago, it was noted generally at 10hp per foot. At least. 
And that seemed to hold pretty well right on. 
Our XT's pulled the 10/11' "plowing disc" good with weighted drive tires & duals on. 
We knew that something was back there, too. Wink


Edited by Jim Hancock - 16 Feb 2017 at 1:11pm
How blessed we are by HIS GRACE!
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sjerden View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sjerden Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 1:05pm
I pull a 9 foot disc with a little Allis Chalmers WD, 45 hp



Edited by sjerden - 16 Feb 2017 at 2:12pm
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Gary Burnett View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Burnett Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 1:56pm
Lot depends on how fast and with each pass it takes more HP. I have a Massey Harris
9ft offset disk and it'll give the D19 all it wants.
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Gary Burnett View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Burnett Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 1:57pm
Originally posted by sjerden sjerden wrote:

I pull a 9 foot with a little Allis Chalmers WD, 45 hp

That's not an offset disk.

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tadams(OH) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tadams(OH) Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 2:24pm
Being soft ground you will probabaly want duals on what ever you use.
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sjerden View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sjerden Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 2:28pm
Originally posted by Gary Burnett Gary Burnett wrote:

Originally posted by sjerden sjerden wrote:

I pull a 9 foot with a little Allis Chalmers WD, 45 hp

That's not an offset disk.
O

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Gerald J. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 3:11pm
I took the gangs off of an Oliver 232 12' disk. I mounted two gangs as an offset disk using some 4" wide flange steel beams under the main frame. I pulled it for years with my MF-135. It pulled as hard as the 2x 16 Case plow that I have. That was in freshly spring plowed black soil.

Years later an old timer neighbor told me it was beneficial to pull a disk 8 or 9 mph because at that speed the disk would toss weeds up in the air and they would land bare root on top the ground a dry out the roots and die.

By that time I was working the ground with my 4020 and I acquired a 20 or 24 foot disk with folding wings. I used parts from the wings to rebuild the center gangs leaving it about 14' and it was a good load for the 4020 at 9 mph. I had to lock the differential to keep the 4020 from hopping side to side.

Gerald J.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CALEBnOK Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 4:18pm
I second the 10hp per foot. This cuts a 14' swath and is all she wants in 4th.



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DiyDave View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 5:30pm
And the answer is, 20 HP, like a ferd has will pull it.  25 is better fer speed, and 35 better still...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BradH Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 5:49pm
A few years back we pulled dad's 14 foot Bush Hog offset to break up some bottom ground sod. Put it on the JD 4440, like new tires, duals, and 1000 lbs. on each rear wheel. It was a little wet but we had to get the job done. You could just barely feel it but it was pulling the tractor off in one direction while it worked. He always told me that disc had a tendency to want to corkscrew as it went through the field. I don't know though, I never ran it myself. I guess you may want to think about your tractor weight situation, depending on the job. Just my thoughts though.
Later,
Brad
Warning! Blind man with a tractor! Head for the hills!
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Tracy Martin TN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 8:47pm
This is an Oxnard built AC offset disc. Looks like it will cut the ground well. I figured if the 170-175 wouldn't pull it, the 185 would. Thanks Tracy
Liberals should know this by now. Voting for Obama the first time was ignorant, voting for him the second time was just stupid.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Allis dave Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 9:21pm
We pulled a 18' offset with a 160hp 4wd tractor. It pulled a lot harder than the white 24'. But was ok.
160 divided by 3 would be 53. A little under 10hp per foot. So I bet the 175 would pull it. Like you said 185 would for sure
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Post Options Post Options   Thanks (0) Thanks(0)   Quote victoryallis Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2017 at 9:33pm
Speed and discs never mix ever. Speed and field cultivators or finishers is a better combination.
8030 MFWD, 7580, 2 6080's, 160, 7060, 7080 and Ford FW-30
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 5:08am
Whoops, mis-read the post, thought it was a regular 4 gang disc...  Needs at least a 185...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kurt WI Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 5:56am
I had a Miller 10.5 ft off set disc and on my hills it made my 8050 w fwa work!  The guy I got it from pulled it with a 6080 fwa and a 190 with duals.  When I told him I was gonna pull it with the 8050 he laughed and said your gonna pull the disc apart!  Well he had all black flat ground and I got hardpan hills.  With the 8050 in front I was able to move it to full angle and it sure was aggressive cutting. 
WD D17D 170 190xt 190xtIII 200 7020
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CALEBnOK Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 7:51am
Let the drawbar swing if it has a swinging drawbar. If you clamp it down it will make the tractor pull sideways
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Eldon (WA) Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 10:28am
30 if you can pick it up

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bull Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 11:05am
We used to pull a Bush Hog 6 foot with a 170 diesel , it pulled it fine.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jiminnd Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 12:25pm
If you go 8 mph you better not have any rocks, around here it would last 1/2 an hour and be destroyed.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ted J Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 12:29pm
NOW I know how Eldon changes his front tires!! Big smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Travis2766 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 3:16pm
My dad pulls an 7 1/2' Case offset (24" blades I think) with a 190, used to pull it with a 175 diesel but it was a workout. It all depends on the soil, heavier soil needs more power.
Me- D17 series IV, All-Crop 66
Dad- 175, 190XT, Farmall M, H and one of those green ones
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ctbowles 58 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 6:54pm
we used to pull one like your talking about with a WD45 weighted heavy . "the tractor weighted heavy that is".



Edited by ctbowles 58 - 18 Feb 2017 at 4:19am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DennisA (IL) Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 7:56pm
Here's a video of my "CA" pulling a model 20 8-1/2'' mounted disc with 16" blades.
 My "CA" puts out about 29hp.



Edited by DennisA (IL) - 17 Feb 2017 at 10:08pm
Thanks & God Bless

Dennis
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian F(IL) Quote  Post ReplyReply Direct Link To This Post Posted: 18 Feb 2017 at 7:29am
Originally posted by DennisA (IL) DennisA (IL) wrote:

Here's a video of my "CA" pulling a model 20 8-1/2'' mounted disc with 16" blades.
 My "CA" puts out about 29hp.


Dennis,
I remember that day.  It was at Ted's AC Jamboree several (10?) years ago.

Brian
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