Getting hydraulic drive info is like pulling hens teeth...

[Middlefork Miner]

Probably the hardest thing I've yet to come across in solving problems or getting questions answered since the invention of the internet.
Yeah, I've seen how to calculate requirements but high school math was probably my weakest subject...let alone that it was over 40 years ago......

[George"Bubba"Hunt]

Miner, shoot me an email and I'll do my best to answer your questions.
Bubba oldbearhunter@alaska.net

[Middlefork Miner]

Thanks George...

Tom

[juggernaut]

It would be great to see these questions and answers on this thread !

[Middlefork Miner]

For whatever reason, I don't think that will happen. I've looked on more than a few different forums (both vehicle & hydraulic) for a little direction & have seen questions like this posted but so far, no answers or even attempts to answer. I guess I'm just gonna have to go ahead with the sprocket/chain drive for the time being & maybe study up on hydraulics over the next year...if I could afford it, I'd just go ahead & plunk down the cash for a Mudd Ox...but with the house & truck payment, THAT ain't gonna happen... There are still a couple guys in my area that I'm trying to chase down & talk to. If I can come up with some useful information, I'll post it up...

[tweeter166]

Whats the questions being asked? i know Hyd and can help but i need to know the question to answer..

[jerseybigfoot]

The problem with creating a hydraulic drive for a 6 wheel amphibian is:
1. Cost of the hydraulic components.
2. Proper engineering

The reason why the Muddox is priced at the level it is because the parts are expensive.
If you want to start a discussion of what engineering formulas are required. I'm sure there is enough of us on the forum to guide you.
There is probably enough of us to clue you in on what components to use and what not to use.
Just remember the T-20, CVT and chain drive is more efficient drive than any hydraulic drive out there. Hydraulic propulsion likes HP,

[thebuggyman1]

"Hydraulic propulsion likes HP" It also likes high rpm for more fluid flow and that means more fuel consumption.....But, when it comes to quick direction changes, it's great! Perfect for a front end loader, or lawn mower, but trail riding???? Of course, if somebody is selling raffle tickets for a new mudd-ox, I want to buy a bunch

[Middlefork Miner]

Whats the questions being asked? i know Hyd and can help but i need to know the question to answer..

Pretty simple question...what would the HP & hydraulics requirements be to power an 8 wheel argo size vehicle up to 10 mph...straight up.

[mudbug3]

My Mudd-Ox is geared to run about 15 mph, and each wheel motor new cost about $2,195 I,ve been told. Now figure in two of these same wheel motors plus the price of the hydrolic pump that feeds both of them hydrolic fluid. Now add in the cost of the hydrolic lines needed , plus the hydrolic tank to hold the proper amount of fluid. As you can see, the cost of a project like this can really add up in a hurry!

[jerseybigfoot]

Pretty simple question...what would the HP & hydraulics requirements be to power an 8 wheel argo size vehicle up to 10 mph...straight up.

Now comes the engineering part:
Weight loaded 1500#?
gradiant 100%?
Chain drive or 8 motors?
Gas or diesel?
Budget $?

[chris davison]

I have seen wheel motors for sale on EBay under hydraulic motors. Also Hydraulic pumps and tanks. What size motor are you figuring on? to get 14 gpm at 2000 psi will take 19.2 hp and your tank needs to be 3 to 3.5 times the gpm of pump to keep from overheating without a cooler. HP= GPM times the psi divided by 1714 times the pump efficiency( just assume its 85%) If I were you I would not look at any motor under 35 hp just to start for that size vehicle that would get you about 25 gpm at 2000 psi to answer any other questions I would need cu. inch per rev of motors and wheel size. From fluid power designers reference handbook Im also going back to Hyd. school this month

[chris davison]

Went to first class of hyd school. It was a lot of math calcs. of cylinder push in american and metric. What pressure i need to push what load with what cylinder diameter. The fun part was thier test station
I got to set up two hyd motors with reversing directional valves and flow controls just like you would need for a hyd vehicle. That part was fun it was Synergytech in Springdale Ar.

[Middlefork Miner]

Well, say a person wanted to use present day components to power/repower something like the KID or Cushman Trackster, what would you use & why???

[strat92]

Here are the specs on the revamped trackster RangeRunner by Mac's Trax, Inc. | TerraTrack Grand Rapids, Michigan