Convert 540 PTO to 1000??

[ironpen]

I have a good deal on a used rotary cutter, but it is a 1000 RPM model. My tractor is a 540 machine. Can this tractor be converted to use this cutter?? TIA

 

[zzvyb6]

Well sortof, you buy a upshift gearbox with 540 input and 1000+ output. I use the same gearbox to go the other way.

 

[Sawyer Rob]

BUT, will the tractor "then" have enough power to run the rotary cutter??

We need more details...

SR

 

[RickB]

BUT, will the tractor "then" have enough power to run the rotary cutter??

We need more details...

SR

Power requirements are equal less the parasitic drag within the step up gearbox itself.

 

[ruffdog]

Gearbox:
PTO SPEED REDUCER : GEARBOXES : Product Catalogue : A-Line Trading - Component Solutions

 

[RickB]

Australia?

 

[Sawyer Rob]

Power requirements are equal less the parasitic drag within the step up gearbox itself.

Nope, doesn't work that way (in this case)…

Gear up the pto and it takes torque away... The "gear up" is taking away torque through gearing...

Just like you tractor has less "power" in high gear than it does in low gear...

SR

 

[4570Man]

It takes more toque to run a 540 cutter of the same size but a 540 pto of the same hp has more toque than a 1000 rpm pto.

 

[ruffdog]

Nope, doesn't work that way (in this case)…

Gear up the pto and it takes torque away... The "gear up" is taking away torque through gearing...

Just like you tractor has less "power" in high gear than it does in low gear...

SR

Don't confuse "torque" with "power". Horsepower is the amount of work that can be done vs. torque is just twisting force. Horsepower numbers come from the torque and rpm numbers. If you gear down your PTO to 10 rpm, you would have tremendous torque but what could you do with it?

 

[RickB]

Nope, doesn't work that way (in this case)…

Gear up the pto and it takes torque away... The "gear up" is taking away torque through gearing...

Just like you tractor has less "power" in high gear than it does in low gear...

SR

Wrong answer. The work being done is the same because the blade tip speed on a 540 rpm cutter and the same model configured as 1000 rpm will be equal or nearly so. Your example uses two differing final drive ratios.