Winch: Hydraulic vs. PTO?

[Garrik]

lol - wait, we are allowed to do math? That makes it all too easy...

52 PTO HP on this tractor, so quite a bit more power available from the PTO now that you mention it. Thanks!

 

[MossRoad]

lol - wait, we are allowed to do math? That makes it all too easy...

52 PTO HP on this tractor, so quite a bit more power available from the PTO now that you mention it. Thanks!

:thumbsup:

 

[Sawyer Rob]

IF, that 9.5 gpm is the pump size, that is NOT what you will get at the remotes...

Also, are you quoting engine or pto hp?

BTW, even 9.5 gpm is going to make a slooow skidding winch!

SR

 

[RSR]

IF, that 9.5 gpm is the pump size, that is NOT what you will get at the remotes...

Also, are you quoting engine or pto hp?

BTW, even 9.5 gpm is going to make a slooow skidding winch!

SR

If it is a closed system under steady flow, conservation of mass says what flow rate passes through one location has to be the same flow rate that passes through all others. So, if it's 9.5 GPM at one place in the loop, it's 9.5 GPM everywhere.

 

[ovrszd]

That right there SCREAMS pto winch!

Power with either is NO problem at all, but a hydraulic winch is slooooooow and you will very soon tire waiting for it, unless you are only going to pull a log or two every once in a while.

Another thing, a pto winch anchors itself to the ground, so it's pulling against "itself", that makes it very easy on the tractor.

There are other advantages, but those two are important enough, to show that a pto winch is far superior for pulling wood out of the woodlot, over a hydraulic powered winch.

ST

Good stuff right there.

I used to have a Mile Marker 12K hydraulic winch. Extremely slow in low side. Extremely under powered in high side.

Most positive thing about a hydraulic winch is it will pull all day. Same with a PTO. No way with an electric.

 

[Sawyer Rob]

If it is a closed system under steady flow, conservation of mass says what flow rate passes through one location has to be the same flow rate that passes through all others. So, if it's 9.5 GPM at one place in the loop, it's 9.5 GPM everywhere.

Then, THAT wouldn't be what the pump is rated for!

SR

 

[RSR]

Then, THAT wouldn't be what the pump is rated for!

SR

???

I'm not sure what you're saying.

 

[MossRoad]

Stop arguing. The pump SIZE isn't 9.5 GPM. The pump RATING is 9.5 GPM at the given PSI. Several folks have interchanged SIZE with RATING, and it's no big deal and not worth arguing about and could be easily straightened out with some kind words rather than exclamation points.

Pump SIZE is measured in displacement.
Pump RATING is measured at specific flow (Gallons Per Minute) at a given PSI at a given RPM.

The tractor's hydraulic system won't give nearly the HP that its PTO will give. 14 VS 50, or about 3.5 times the power.

(good read on hydraulic pumps here: Engineering Essentials: Fundamentals of Hydraulic Pumps | Hydraulics & Pneumatics )

 

[Industrial Toys]

Why does it seem that one can find well performing hydraulic snowblowers, but hydraulic winches are always painfully slow? I mean, you could wrap a cable around a hydraulic snowblower auger shaft and probably move some timber, quite quickly!

I would like to have a SSQA mount hydraulic winch, with free spooling out and remote controlled operation (electric D05 Valve Block) for pulling pine logs out of the bush, as a one man operation.

I have yet to see anything that comes along used, fill this requirement.

 

[Sawyer Rob]

??? I'm not sure what you're saying.

I guess BOSS Moss thinks everyone is arguing!! DOH!

Anyway, what I'm saying is, what ever the pump is rated for output in GPM, that's NOT what you end up with at the remotes...

SR