Horsepower requirement for offset harrow

   / Horsepower requirement for offset harrow #1  

Lineman North Florida

Veteran Member
Joined
May 12, 2008
Messages
1,962
Location
LaCrosse Florida
Tractor
Farmtrac 360 DTC with FEL & John Deere 5093E with FEL ,Kubota SVL 75-2
I started a thread about offset harrows a few weeks ago and after quite a bit of looking I think I have it narrowed down to either an 8' 9" pull type with 24" disc blades which weighs around 2700 lbs or a 9' 6" pull type with 24" disc blades that weighs in around 3650 lbs. The larger disc frame is 1/4 steel and the smaller is made from 3/16 steel , I like the idea of the heavier disc but would like some opinions on if I have enough tractor to pull it comfortably, I will be pulling it with a John Deere 5093E with loaded tires, FEL and 4x4. Opinions?
 
   / Horsepower requirement for offset harrow #2  
Depends on your soil - in sand or loam yes in heavy clay you may have some difficulty. How deep?
 
   / Horsepower requirement for offset harrow #3  
You will have all that tractor wants with the heavier disc. Ken Sweet
 
   / Horsepower requirement for offset harrow
  • Thread Starter
#5  
Depends on your soil - in sand or loam yes in heavy clay you may have some difficulty. How deep?
Mostly good black dirt, can get a little wet when we get a lot of rain, so it can be a little heavy, as far as how deep I imagine I'll try to float the tires on the first pass and with any luck at all run back over it with my leveling harrow in a few weeks to bust up the clumps.
 
   / Horsepower requirement for offset harrow
  • Thread Starter
#6  
   / Horsepower requirement for offset harrow #7  
10000# of 4x4 tractor, in good soil.....i think you will be fine with either
 
   / Horsepower requirement for offset harrow #8  
I started a thread about offset harrows a few weeks ago and after quite a bit of looking I think I have it narrowed down to either an 8' 9" pull type with 24" disc blades which weighs around 2700 lbs or a 9' 6" pull type with 24" disc blades that weighs in around 3650 lbs. The larger disc frame is 1/4 steel and the smaller is made from 3/16 steel , I like the idea of the heavier disc but would like some opinions on if I have enough tractor to pull it comfortably, I will be pulling it with a John Deere 5093E with loaded tires, FEL and 4x4. Opinions?

Tractor Data shows you at 93 engine hp and lift capacity of 3200# at specified lift point which sometimes is the lift pins and sometimes 1 or 2' beyond. Think "foot-lbs. Any # you have out beyond the specified lift capacity point you have to take into account the distance. Considering the offset is long to allow for the offsets and their angle, you will have a lot of weight on either out beyond your lift point.

I run a 7' heavy boxed frame, 24" at 9" spacings, and at one time I had 4 JD 150# weights on top which I removed due to the lift strain on hydraulics. Seems to plow well enough without them. It was all my 65 hp tractor could lift at idle rpm....pulling with 65 engine hp and 4wd was not the problem, ran it in B1 or 2 in a 12 speed setup ABC, 1234. Soil is heavy black clay, topography flat.
 
   / Horsepower requirement for offset harrow #9  
Tractor Data shows you at 93 engine hp and lift capacity of 3200# at specified lift point which sometimes is the lift pins and sometimes 1 or 2' beyond. Think "foot-lbs. Any # you have out beyond the specified lift capacity point you have to take into account the distance. Considering the offset is long to allow for the offsets and their angle, you will have a lot of weight on either out beyond your lift point.

I run a 7' heavy boxed frame, 24" at 9" spacings, and at one time I had 4 JD 150# weights on top which I removed due to the lift strain on hydraulics. Seems to plow well enough without them. It was all my 65 hp tractor could lift at idle rpm....pulling with 65 engine hp and 4wd was not the problem, ran it in B1 or 2 in a 12 speed setup ABC, 1234. Soil is heavy black clay, topography flat.

I hear what you are saying but true lift capacity does not change depending on how far out you are - that is the beauty of the 3 pt hitch mechanism. The only change is the balance due to the distance from the center of the rear tire, i.e. the farther out the weight is the more weight you need on the front end to balance it.
 
   / Horsepower requirement for offset harrow #10  
Why does 3ph capacity matter on a pull type?
 
 
 
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