Hydraulic Snowblower with PTO Increaser?

[Dfixit1]

A friend years ago had a snow removal business and ran 2 Belarus 80+ hp tractors, a PTO speed increaser, hydraulic pump, tank and hydraulic snowblowers. First time he used it commercially it took a buried 2” branch chewed it up and spit it out the chute and it hit a 2nd story window and broke it.
Has anyone seen the engineering for adding an increaser to a 35 HP PTO to run a higher gpm hydraulic snowblower?
Thanks!

 

[grsthegreat]

Never heard of a pto increaser. I have a 45 hp with hyd front snowblower and rear hydraulic powerpack. Works just fine and has for 12 seasons

 

[oldnslo]

I believe most of the PTO mounted pumps have a speed increaser built into them today. This converts the 540 RPM to some higher rpm so can use a smaller displacement pump.

I think Comer also makes a PTO increaser gear box.

 

[Dfixit1]

Yes, ther’e available and increase PTO speed from 540 to 1000 rpm and possibly have higher ones.
I asked Erskine about them and will see what they say?
My mechanical front blower throws really far compared to the hydraulic blower videos I watched. But it’s limited in deep snow. 225” and counting! Thanks!

 

[ptsg]

Here is a PTO speed increaser with the pump mounted to it. This one mounts the implement and you need a PTO shaft.

Alternatively, there is this style where it goes over the tractor PTO shaft:

The advantage of using a speed increaser with separate pump, instead of a big ol'pump directly on the shaft, is that this way, you can mount whatever pump displacement that fits the application the best.

 

[hayden]

I have an Erskine front snow blower with a PTO hydraulic power pack, specifically their HP-24. The "pump" is actually two separate parts bolted together. One part is a hydraulic pump, and the other part is a step-up gearbox. Here is a link to the one on mine, and I expect there are others. I don't know off had what the ratio is.

STEP-UP BOX (DIST)

STEP-UP BOX (DIST)

powersource.danfoss.com

 

[zzvyb6]

I once used an increaser on a NH HydraPush side discharge manure spreader. You don't wanna know....

I use it now in reverse (slow down) to run my pto genny off an F1435's 2000 rpm mower pto.

 

[grsthegreat]

I dont recall if my rear pump has speed increaser or not. One thing for sure, its big and heavy. Takes another set of hands to mount it. Mine throws alot of snow a long ways.

 

[Dfixit1]

I have an Erskine front snow blower with a PTO hydraulic power pack, specifically their HP-24. The "pump" is actually two separate parts bolted together. One part is a hydraulic pump, and the other part is a step-up gearbox. Here is a link to the one on mine, and I expect there are others. I don't know off had what the ratio is.

STEP-UP BOX (DIST)

STEP-UP BOX (DIST)

powersource.danfoss.com

What is your PTO HP?
Which front blower do you have?

Thanks! Holy Cow HP24!

https://erskineattachments.com/wp-content/uploads/2021/06/2023-2024-Erskine-Hydraulic-Power-Unit-High-Flow-Power-Unit-8-23-23.pdf

 

[Dfixit1]

I once used an increaser on a NH HydraPush side discharge manure spreader. You don't wanna know....

I use it now in reverse (slow down) to run my pto genny off an F1435's 2000 rpm mower pto.

 

[hayden]

What is your PTO HP?
Which front blower do you have?

Thanks! Holy Cow HP24!

https://erskineattachments.com/wp-content/uploads/2021/06/2023-2024-Erskine-Hydraulic-Power-Unit-High-Flow-Power-Unit-8-23-23.pdf

50 hp PTO and an 84” blower. 50hp isn’t enough for anything more than a couple of inches. The rest of the time my tractor is running flat out and I’m regulating speed to keep rpms from dropping too far. Typical speed is between 1 and 2 mph.

 

[Dfixit1]

“50 hp PTO and an 84” blower. 50hp isn’t enough for anything more than a couple of inches. The rest of the time my tractor is running flat out and I’m regulating speed to keep rpms from dropping too far. Typical speed is between 1 and 2 mph.”

Are your results with the PTO increaser?

 

[grsthegreat]

50 hp PTO and an 84” blower. 50hp isn’t enough for anything more than a couple of inches. The rest of the time my tractor is running flat out and I’m regulating speed to keep rpms from dropping too far. Typical speed is between 1 and 2 mph.

I have the 80” blower, but we have dry snow. I just blew thru an 18” pile that shed off of my barn roof, so it was compacted. Blew right thru it no issues, and i only have 45 hp. It shot at least 50’.

Heres some pics, but hard to take pics while blowing. Also, i made 1 pass thru the 18+ inches of snow.

Mine has the 15 GPM , 3500 psi pump. Its designed for up to 50 hp. I wonder if using the larger pump on a 50 hp is causing an issue trying to throw snow.

I run my driveway with say 6-8” snowfall, if fairly dry, with hydrostatic tranny in 2nd gear, and i put right along. Only time i go slow is on building sheds, as its real compacted.

 

[grsthegreat]

When my barn sheds, this is what im left with.
I have to clear it so horses can get out of barn. When its this deep, i have to blow it in levels, but doesnt take very long as i can raise the blower.

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[Richard]

I've got a hydraulically powered 15' mower. Yellow part is the speed increaser. In my case, it multiplies the 540 by 4. I also have a 1,000 pto and, they make a 1,000 pto version of same thing.

Cast steel so it's "heavy as lead".

I've wondered about getting a PTO powered generator and if I did, could I use this to get the input speed needed but maybe at a lower tractor RPM (or would I be better off using 1,000 pto)

Pain to put on/take off so I don't. Tractor is essentially a dedicated lawn mower and I leave it on all year unless I have a reason to fight it off. Even then, I leave the increaser and just take the pump off.

This specific unit blew a gear on me maybe 2-years ago. If I recall, the replacement unit was around $3,500.

 

[Dfixit1]

 

[Dfixit1]

Mid PTO running with speed of HST.

 

[Dfixit1]

Snow was 4’ deep yesterday in this picture.

 

[Dfixit1]

It works well but just want to be able to remove a 72” QA bucket and quickly attach a blower. 45 hp, 42 hp net, 35 hp PTO.

 

[grsthegreat]

Why i love my setup, i can swap between blower, plow or bucket for various winter chores. Even put forks on if i need to move snow fall tree damage. And being able to raise blower up to whatever height needed to move shed snow is also a blessing.

And NO SHEAR PINS. It uses hydraulic bypass.