Looking for advice for choosing a PTO HYDRAULIC PUMP

[GarlicOfEden]

I am building implements for my specialty crops. For ease of builds, hydraulic motors would work best. I am seeking advice from owners who have PTO shaft mounted auxiliary Hydraulic Pumps concerning how to size, rear vs side ports, cast iron vs aluminium, etc., etc.

Thank you in advance

 

[RickB]

Prince cast iron PTO pumps have been around basically unchanged for decades. There are also clones of that style out there.

 

[Cat_Driver]

I went with Price best company out there

 

[tractorcrazy]

I have a mf 165 diesel with a pump that runs off the crankshaft it is a 20 gpm pump I unplug the tilt cylinder hoses and plug the splitter into it works good with plenty of speed and splitting force Rick.

 

[sixdogs]

Another Prince supporter. Worked like a champ. Probably 95% of the ones I've seen over the years have been Prince.

 

[Wyobuckaroo]

I am building implements for my specialty crops. For ease of builds, hydraulic motors would work best. I am seeking advice from owners who have PTO shaft mounted auxiliary Hydraulic Pumps concerning how to size, rear vs side ports, cast iron vs aluminium, etc., etc.
>>>>>>>>
Having been a tool and die machinist, I've been around several home projects. Usually a log splitter. With that it seems you work backwards. A cylinder or motor of a given size requires X gallons per minute to run the speed or cycle time required. That requires a pump that will provide X gallons per minute plus any other fluid requirements. That requires pto horse power to run that size pump..

What I have seen is cast iron pumps last longer and are more likely to be able to overhaul to almost like new condition...

My 5 cents of experience.

 

[dougtrr2]

I am building implements for my specialty crops. For ease of builds, hydraulic motors would work best. I am seeking advice from owners who have PTO shaft mounted auxiliary Hydraulic Pumps concerning how to size, rear vs side ports, cast iron vs aluminium, etc., etc.
>>>>>>>>
Having been a tool and die machinist, I've been around several home projects. Usually a log splitter. With that it seems you work backwards. A cylinder or motor of a given size requires X gallons per minute to run the speed or cycle time required. That requires a pump that will provide X gallons per minute plus any other fluid requirements. That requires pto horse power to run that size pump..

What I have seen is cast iron pumps last longer and are more likely to be able to overhaul to almost like new condition...

My 5 cents of experience.

Don't overlook that key component, cycle time. My father in-law worked for a company that built portable rock crushing equipment. They had a unit ready to go out the door until they did the calculations on the cycle time for hydraulically closing clamshell door. They had plenty of pressure but not enough gallons per minute. The cycle time was 30 seconds to close that door. Back to the drawing board.

Doug in SW IA

 

[GarlicOfEden]

Buckaroo and Doug,

Very good advice. That is along the lines of what I was looking for. I was wondering if any out there has experienced both cast iron and aluminum, and which one they liked more. Because we are a small farm of 10 acres, we use a compact tractor considering turning radius and needs. There are machines out there that do what I want to do, utilizing 175+ hp and $75K to $300K implements, but those aren't in the budget of the small organic farm. On the flip side, there are implements from China and India already geared toward these needs, however, even though the low price seems attractive, the shipping is often more than the machine and where do you go for parts. Not to mention, the requests for payment to be via Western Union. Uhhh? No thanks! I am looking at manufacturing automated implements for the smaller farms, much like Eric at US Small Farms, but different equipment for different crops and industries. He is a really GREAT guy by the way. All this and staying near the price point of imported equipment after shipping costs.

Is there anyone out there that has worked with both side port and rear ports? Which one did you prefer?

I am basing these machine concepts on reducing labor and need of laborers for the small farm working with compact tractors of no less than 26hp at PTO. That said, utilizing the highest GPM available and each implement having the recirculation and cooling necessary for proper functioning. I have spent my life creating the "impossible" and now I have the farming bug and reaching for something I like to do to supplement my farming habit.

Thanks to all, and keep your thoughts coming!

 

[LouNY]

While the pto pumps that just slide over the pto shaft are effective they also get in the way at times,
they are cumbersome to mount and the hoses running to the valving and tank are always in the way.
I much prefer the pump to be mounted on the equipment with a pto shaft to it driving the pump.
This can be 3 point mounted, trailing (drawbar), or semi mounted (just on the lift arms).
With the pump mounted on the equipment the reservoir can be integrated on or in the equipment.
Hookup is easier and faster, maintenance is easier.

 

[GarlicOfEden]

Lou,

Great point. I have have been battling with thoughts concerning expense vs. convenience. Have always had in mind that the reservoir and valves be on each implement. The units being set or fine tuned to the demand of the ground speed. A digital ground speedometer, programmable for any tractor including HST, is in the works now awaiting patent pending before launch. The concern has been adding the cost of both a pump and a PTO shaft to price vs. customer supplied pump. I need to start a new thread to get feed back of what owners want more.