(800) 853-2651
SHOP NOW

different types of disks, what makes the choice?

A

Anonymous-0

Well-known Member
There are offset disks, 3pt disks, transport disks, and disks with foldings gangs. Want to purchase a 100 HP tractor and wish to know what makes a person choose one disk over another? Is a 3pt disk a good choice? Say a 10 ft for a 100 HP tractor? That way the down pressure on the 3 pt does a better disking job? Would the next best disk be the heavy offset ones? Please educate me on what application or decision making comes into play. Thanks.
 
you want a transport disc,(three point has no down pressure) half of a disc job is leveling the ground. You will want a 12 to 14 ft disc at the least. I have seen an old JD that did a great job, and a new Case that ridged so bad we added wing blades to even it out.
 
First off, there is no down pressure on the 3pt hitch. Even if there was it would not be desirable, as pushing down on the 3pt implement removes weight from the rear wheels and reduces traction. All you'd do is spin!

A 100HP tractor is capable of pulling much more than a 10ft disk. We used to pull a 16ft disk with a 16ft spring tooth harrow behind it using a 100HP 856 to fit up fields for planting.

The choice of disk is dependent on what you want to do. An offset disk is for primary tillage, that is, tearing ground after harvest, or for the first time in the spring. A tandem disk is meant for breaking of clods of soil in freshly plowed ground.

Transport disk is any disk with wheels.
Disks that are wider than 16ft generally have folding gangs to make them narrow enough to transport down most roads.
3pt disks are usually 8ft or narrower, and are meant for use on smaller tractors in smaller fields where maneuverability is important.

Any disk will be a combination of at least two of these "types" above. Offset transport disk with folding gangs, for example. 3pt tandem disk, for example.
 
Check your soil type. It will dictate how much disk you can pull. My soil conditions allow about 2 foot of tandum disk for every 10 HP. Off sets pull much harder. A freind with a 4X4 250 HP Stiger can pull a 14ft offset but it sure makes that tractor bark. That tractor plays with a 28 foot tandum wing disk.

With a 100 HP trator if you find a deal on a smaller disk (I did, 14 footer for cheap) you can still run it. I'm running mine behind a 1206 (112 HP by the Nebraska test). I run in a higher gear at lower throttle settings runing at the desires ground speed for the disk. Saves a lot of fuel.

If I were you I would find a tractor first and then match implements to it.

Rick
 
Most people are here estimate about 7HP per foot of disk is
required. However we pulled a 20ft disk with a 100HP tractor
10" deep at 7MPH for a few years. We look for a good heavy
pull type tandem disk so it has some weight to it that will help
push it into the ground.
 
There are several different kinds for different purposes.The heavy offset disc are used mostly for deeper tillage and residue management and a 100H.P. tractor would not pull one .Regular wheel discs are used to level,incorporate chemicals,and to cut residue to make planting easier.Blade diameter[14/28 in]and weight make a difference in what size.Older lighter disc such as a JD BWA would let you pull a 20ft disc with wings where as a newer heavier disc might make 14ft a load.Discs are a dry weather tool and can cause compaction.We use field cultivators with levelers or rolling baskets as they come in larger sizes 60ft plus which requires around 500H.P.3 pt discs are used on a few small gardens and are usally small .Discs are not as popular as they once were and unless they are newer ones usually sell for around salvage.
The way discs are designed it is hard to have a level seed bed as they pull the dirt in and turn it but can leave a small furrow.
 
(quoted from post at 22:24:24 08/03/12) Most people are here estimate about 7HP per foot of disk is
required. However we pulled a 20ft disk with a 100HP tractor
10" deep at 7MPH for a few years. We look for a good heavy
pull type tandem disk so it has some weight to it that will help
push it into the ground.
Click to expand...

So my MD is good for a 6 or 7' disc???
 
Well around here I pull a 14 footer with a 58 horse tractor either the 560 or 720. Pulls well. Would imagine you could pull a 10 footer with the md
 
Maybe a 10 footer... I hadnt thought about it but I tried out or 14" IH disk a couple years ago with my SM and it was all it wanted in 1st gear. Depends on how deep you want to go too.
 
I have an Oliver 1850 about a 94hp tractor. I pull a 18ft white modle 252 disc with 7.5 in spacing and its perfec match butI've tried to pull a white 271 about 18 ft with bigger blades and 9.5 inch spacing and I did not get very far way to much disc it all depends on disc spacing, angle of the gangs of discs, weight of implement but as a rule of thumb for a 100hp tractor I'd guess 16ft on small end to 21ft on bigger side. If you are looking for a primary tillage go with a offset disc if it's a secondary tool for surface trash management, seed bed prep then get a good tandem disc, here in Indians you'd spend 1000-3000 on a good disc.
 
There is a lot of good advice here. I have an IH 37 with 18 or 20" discs. It measures 13 1/2' (don't know if that makes it a 12 or a 14'). I have pulled it with from 70 to 115 hp. The only difference is how fast I am going before I spin out. My point is along with everything else mentioned, how you weight the tractor is very important. A 37 is a pretty light disk but will hang up either the 706, 856 or 1256. All three had single rears loaded. I don't think that you can maximize a 100 hp tractor without duals, but I don't want to have fool around with putting duals on.
 
You must log in or register to reply here.

Similar threads

S
Need Advice - Looking for a Tractor
Replies
14
Views
1K
showcrop
showcrop
P
What to plow with...can ya guess my choice?
Replies
11
Views
2K
Leroy
L
Absent Minded Farmer
Need Advice: I Have An Opportunity To Operate More
2
Replies
23
Views
5K
Teddy (punchie)
T
W
Can someone give me a guesstimate of what my 420 is worth?
Replies
6
Views
2K
watson524
W
R
Sheep, Wolves, and Sheepdogs - {gun related}
Replies
13
Views
2K
Anonymous-0
A
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top