John Deere 8100 and Rotor S stump grinder

Stump cutter-removal Rotor S and John Deere 8100
Less rpm = no danger + safety

Category:

Howto & Style

Tags:

• tree
• stump
• removal
• stumps
• cutter
• grinder
• grinding
• stumper
• souche
• souches
• ceppo
• mulcher
• broyeur
• JD
• John
• Deere
• Tractor
• levaceppi
• video

[skgrek23]

could u run it at a higher rpm?

[rotorstumper]

@skgrek23

Yes,but no many.

[sixstringfretter]

@skgrek23 No. First of all, why would you want to. But the real reason is the angle of the PTO shaft. When it first starts out, the unit is so high in the air that the U-joint is past a 45 deg angle. If you put too much torque on that joint at that angle, you'd be changing U-joints all the time. And the whole purpose to this kind of stump grinder is the slow, safe speed. No chips flying all over the place.

[rotorstumper]

@sixstringfretter

In the new Rotor we apply a cardan double joints 75° for 240 HP

[chakathewolf]

Wow, what a beast! There have been a few times I wish I had this thing. I would think you'd need a bi-directional PTO in case you needed to back that thing out.

[rotorstumper]

@chakathewolf ,yes this model has the bi-directional PTO

[mooreconor]

i find this unbelievably satisfying to watch.

[mmaaxx1198]

And the roots TOO!!!

[Heiland123]

You forgot: Less rpm = more Nm

[ThePortalNC]

But does it Blend ?

[YoungJim409]

Seems to work alright.

[antanilaprezzolata]

Che sborata!

[dieseltrainfreek]

@lilbro86 farmers don't pay tax..... lol

[Probablyacowtbh]

Take that, nature.

[fredriktaaje]

That was awesome.. Nice machine :-)

[MultiKuku100]

rewelacyjna maszyna 

[16Metallaro12]

woow how many hp has got?