Pto hp into balers

[JCB_JCR]

Lots of tractors now have 4 pto speeds..so low power machines, conventional baler could be run in selected 1000 rpm, but with the engine running around 1200 rpm,

One problem with doing this is the torsional vibration from the engine could fatigue implement components quicker. Although normally it would be a bit 6 cylinder in 1000 speed vs little old 3 cylinder in 540 speed so probably about the same vibration sent down pto.
Have heard of people wondering why straw blower gearboxes blow up when they tighten up the pto slip clutch and put 200hp down it!

 

[wdah/him]

I've thought this out like this.

The more hp you've got, the less the output fluctuates. For example, 180hp will clear lumpy bits on swaths with less "hassle" than 140hp etc. So the forces put through the pto shaft are much more even on bigger hp tractor.

I might be wrong though.

not what i find, i find there is only so fast u can travel before you are leaving stuff, or else the pickup is on top of the swath and not getting the right flow of grass. more hp will only jam it more. when ever you have hit the limting factor that is is it, wether that is forward speed in light crop or as much as the intake can handle comfortably in heavy stuff, hp just helps maintain output on hills or when packing the last bit in if you are at a high pressure

 

[JD-Kid]

used to run a claas rotocut 44 behind a 7210 case worked all right cam clutch would let go if over loaded
also used it being a 5130 case only diffrence was baling on hills the bigger one had the power to keep speed up on hills
slip clutch only works if it's working a lot are rusted and would not let go thats when a lot of damage can happen shear bolts should only let go on a dead stop

 

[Frankzy]

I actually think it was easier on the baler than a 50hp tractor that was being dragged down and surging on the revs under loading, constant speed broke less shear bolts.

That makes a lot of sense as the lower the rpm the higher the torque gets when running in a non-eco PTO speed.

not what i find, i find there is only so fast u can travel before you are leaving stuff, or else the pickup is on top of the swath and not getting the right flow of grass. more hp will only jam it more. when ever you have hit the limting factor that is is it, wether that is forward speed in light crop or as much as the intake can handle comfortably in heavy stuff, hp just helps maintain output on hills or when packing the last bit in if you are at a high pressure

Not what he was talking about though.