How much disc

[barneyrb]

Just got my new to me Yanmar home. I'm going to have to buy a new disc and was wondering how much I can pull. It is a US35 just like a Deere 990. Was considering this one. Any comments???
Tractor Supply Company - 6 1/2 ft Box Frame Disc

 

[N80]

I have a Kubota L4400 which is very similar to the JD 990. I am pulling a 7 foot (I think it is 6'9" technically) foot disk with 20, 20" disks and it works just fine. My disk is a Leinbach. I think it is a notch above the KK discs at TSC and costs about the same or less.

Is your tractor 4wd?

 

[Beavis]

I have a JD 3320 (33HP, 4wd) and I'm pulling a 6 1/2ft (It actually measures about 7ft) disk with no problem.

 

[Z-Michigan]

I have the TSC "Farm Force" (not King Kutter) heavy duty 6.5' disk and am quite happy with it. I have 50hp and MFWD to pull it, but normally use 2wd and less than half throttle. I think you'd be fine with a 6.5', as long as there isn't anything funny with your soils that make them drag more than most.

FWIW, I haven't seen the Leinbach and I originally was skeptical of anything TSC, but our disk has been trouble free while implements from some fancier names, purchased from real tractor dealers, have been troublesome.

 

[barneyrb]

Yes, tractor is 4wd with loader. I have found a tuffline (used) built the same way as the unit posted above. They are asking $400 and it needs a bracket that one of the outer bearings bolt to. Is this priced about right? Disc shows very little wear, just paint faded frome sitting outdoors, disc pans still have the black on them and not rusted at all. The ground I will be working in is Mississippi river bottomland gumbo (Louisiana side of the river). Sorta heavy clay that sticks to everything when wet and cracks open when dry.

 

[darkviper]

I have a kioti ck 20. 21 hp. I am pulling a lienbach 16X18" disc to the axiles in soft soil and a john deere 12X22" Offset the same as well. The Lienbach is about 5-5.5' i think and the offset is 54". Just for a point of reference

 

[Rara Avis]

Just got my new to me Yanmar home. I'm going to have to buy a new disc and was wondering how much I can pull. It is a US35 just like a Deere 990. Was considering this one. Any comments???
Tractor Supply Company - 6 1/2 ft Box Frame Disc

Tillage Answers Resource Tandem Disc Harrow Width Calculator

Recommended Disc Harrow width: 35HP Engine

..............................Class I......Class II..........Class III
Recommended Width.....6'..............5'...................4'
Speed of Operation...5 - 6.6 MPH...5 - 6.6 MPH....5 - 6.6 MPH
Depth of Operation.......4"..............5"..................6"
Soil Condition............Average.....Average.........Average

Class Descriptions

Because of the wide variance in farming operations, it is not possible to provide exact specifications for all farming conditions. All figures in this calculator should be considered only as an approximate guide. Consult your local dealer for specific recommendations.

Increased amounts of crop residue has more farmers looking into the agronomic benefits of tandem disc harrows. Discs are in a unique class for Residue Management because they both size and mix residue into the soil... compared to some tools that only size residue or others that mix without sizing.

Class I: Seed Bed Finishing
- 100#-140#
- 22" blades
- Moderate crop residue management
- High-speed tillage/leveling

Class II: All-Purpose
- 140#-210#
- 22" or 24" blades
- Primary tillage or seed bed finishing
- Heavy crop residue management


Class III: Primary Tillage
- 210#-250#
- 24" or 26" blades
- Primary tillage/extreme conditions
- Heavy crop residue management