Controlling Hydraulic Motor & Cylinder With Power Steering Pump
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- Опубліковано 30 сер 2011
- This is my setup to test a GM Power Steering Pump as a hydraulic pump to power hydraulic motors and cylinders. All the components used here are stock. The valve is a Gresen/Parker 400 bi-directional valve. The motor is a Ross (I'm unsure of the model or spec's on it). This setup worked great, now ready to adapt to my garden tractors!
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These are great P/S pumps for garden, lawn and custom tractors for front loaders or 3 point hitch on them. But most will recommend the ones from the 80s with a remote reservoir so you can put on a larger capacity hydraulic tank for extra oil. But people that have used them with great results plus they seem to be a lot cheaper especially brand new compared to standard hydro pumps. Main reason they say use ones from the 80s or older is because of the V-belt pulley is much easier to adapt to an already V-belt system
Thanks for the demonstration!
Wow, that is so cool. I am so going to try this. I don't know why I never thought of the power steering pump... duh. Nice job
Hey thanks for comment. I'm not sure of the psi, I believe it's around 1300 give or take. I want to adapt them to lawn tractors so they should be enough for that. Good idea going to a larger automobile pump. I've also considered a bracket to run two pumps in parallel.
badass brother, thanks for the vid, i am researching how hydraulic winches work and your vid clarifies it.
i second the comment about using a PS pump with a remote reservoir. I had to remove the pump on a Ford Torus, it has a separate reservoir, and i couldn't help wonder if you could use it as a pump like this.
thats how i found this vid.
cool stuff man
Thanks for doing this vedio you cleared up a lot of questions I had about hydraulic operations.
Great video just what I was going to do but now I know it works.
Thanks for your time and work.
Thanks for the idea!!!
Yes it is. GM car p/s pumps are flow controlled at approx. 2 gpm and relieved at 1250-1450 psi. The electric motor in the vid is too small for that pump setup by about 50%. With a 1:1 pulley setup on a GT, it will give a consistent flow rate across the entire rpm range with more pressure available than on unmodified GT lift system hydraulics.
Awesome Idea, I want to power a hydraulic pump with the pto on the back of my ford 9n. I was searching for ideas and I found this, and if its true what one comment said that those pumps can produce about 1400 psi then I'm pretty sure that you can power some serious stuff with that. Thanks sharing a really good idea
Nice work!!!!
I tapped into the power steering system on a GM 1/2 ton truck to operate a Myers plow set up and it worked really well for that, quick and strong. A strong word of caution is that when operating the plow controls the power steering doesn't work, the oil flow is diverted to the plow except when lowering the blade. I did plumb in an oil reservoir tank.
+Ray B Sounds dangerous.
Home made car battery
This is exactly what i want to do. I just changed my rack, hoses, and pump..all new. I hate using my winch for my snowbear 250lb plow..i wanna tap in and use my pump to just lift the plow.. tell me what i need, ill do it
Would be very interested in seeing what kind of pressure that thing would push out. Cool idea
Power steering pumps are great little units. They have a pump, regulator and pressure relief in one unit. I use one to run 6 cylinders on a mini-dozer. If you need more capacity, build a reservoir. one of the best things Is the fact that they can be belt driven and can handle a lot of horsepower on the input shaft. My dozer uses a pump off of a dodge caravan. cost me 20 bucks and works great. in fact, I need to add an orifice fitting to slow things down
Thank for the tips
Cool project
that's a bad ass tester
Power steer pump will have a hydrostat valve spool limiting the flow and an internal relief set very low because it's only intended to assist steering ,you should also limit the use of 90 deg fittings in a hydraulic system, they rob flow and pressure..
Mmm idea for a tipping trailer
veri good old men very good
Hey thanks for the comments! To be honest... I don't know. I have not rigged up anything to test it with yet. My goal is to use this setup, power steering pump, to drive various things on my lawn & garden tractors. I hope to be able to lift 500-800 lbs at the loader. I've considered running several pumps in parallel with check valves if more pressure / volume is needed. My loader is not complete yet... I also plan to drive a snow blower and tiller with this setup.
Good job 👍🇲🇽
thank you
Brilliant video thank you 👍👍👍👍👍👍👍👍👍👍👍👍👍👍
Hey buddy, great video! Can I ask, where do you get your hydraulic accessories; hoses, valves, etc.?
great and genus
what was the HP on your motor I would like to build one for test purposes as well.handy around the shop.
Thanks for the video. This is something I've been thinking of doing for a while but haven't got to yet. One thing I've discovered in researching is that the Toyota MR 2 has an electric 12V power steering pump. Not sure about what pressure it is rated to but the info could help someone.
Cool video! Help me a lot. One question I have is you said it spins clockwise looking at it. Is that looking at the pulley end or looking at the pump end? Thanks
Well my opinion would be that it can be made to be functional, however I think it will be slow and possibly underpowered. I do like the concept though, I want to play with this very idea when I get my new shop set up. I'm also curious about running multiple pumps in tandem.
Very cool👍
Lots of possibilities there. What is the max pressure that pump will put out? If you plan on having more rams you may have to switch to the pump they used on vans. It has an external reservoir that would be much easier to fab a larger oil tank to.
After reading some of the comments it seems some of your project may not be up to specs,but thanks for the video.
Hi. I'm doing the same thing but i'm working with an hydraulic jack cylinder. My pump has a check valve but i'm concern about it holding presure without power, do you thing it will do??? Or just the fluid is coming back to the reservoir when power off and cylinder under weight???
kick ass bro!
Thanks mate, hopefully this winter I'll finally be putting it on a small tracker to run a loader.
What PSI is it generating ?
Oil flow for typical Power steering pump with default pulley diameter, 5 gpm @ 5000 rpm
Is beautiful may use old forklift 12 volts hydro pump and use in Mobil places give you 230 psi and 3000 lb power w oil iso 36 or 60w is good but you system is great to thanks
That is awesome! I just checked out your vid, that's my kind of fun!! How are you controlling your steering, it looked like this was separate from the hydraulics.
interesante no habia visto una bomba de direccion hidraulica automotris accionando motores hidraulicos y pistones podrian decirme que presion genera esta bomba
Check craigslist for a Case 200, 400, or 600 series garden tractor. They've got all the hydraulics you'd want to play with, including a transaxle driven by a hydraulic motor.
yeah it moves the ram but if it was under a load would it work or just make the belt slip power steering pump isn't strong enough to use to lift dirt on a bucket or is it?
Eso era mi pregunta gracias me saco mucha duda
Wondering your personal opinion, trying to fix my 6x6 and had a great idea while in princess auto i wanted to use two hydraulic motors to power it one on each side to make it like a skidsteer. Would it cost to much? Take to much work? Not have enough power? Not enough of a top speed? Thanks
Question? Will a hydraulic motor free turn by hand when the valve controls aren't in use? For example, If i was using a hydraulic motor to make a wheel turn for forward or backwards motion when using the controls.. Would that wheel stay locked still when the valve control wasn't being used, or would it turn freely as if it was in neutral ?
To test in compression of shock absorber springs. See force
FYI - Those cast iron fittings (especially the elbows) are only rated to 125 PSI (max). If you're working cylinders even moderately loaded, stand back. That hydraulic oil can get really hot.
I was thinking the same thing. One point though there not actually cast iron but rather malleable iron which is a little more forgiving and the 125# is a nominal rating. In any case not safe for higher pressure hydraulic systems
Sweet, have you hooked it up and tried it yet?
muoto legal cara esse vidio.e pena que os nao faz um vidio desse explicando. em portugues
Did you mount the power steering pump sideways under the riding mower? I'm being told you can with 90's GM pickup truck pumps that have the external reservoirs. I really need to know if these pumps can be controlled via a horizontal belt as opposed to the vertical belt under the hood of the pickup.
If the pump has a separate resevoir then it should work fine but without seeing it in person I can't say with any certainty.
Could you also tell me that power steering pumps flow rate? I am thinking of doing a project with the students here at my highschool to install an unconventional hydraulic hit in a pickup.
Like it,...
which grade hydraulic oil u using ?
So the idea is cool but what would the cylinder be like under load?
an question cant used how unit hidraulic
Hi! Nice video! Really enjoid watching this. Do you think i could use a setup like this to power a 30 ton hidraulic press? Thanks!
I'm no hydraulics expert by ANY stretch, but my guess from a physics standpoint would be yes HOWEVER it would probably be extremely slow. The next tests I want to try is running multiple pumps in parallel to increase volume output.
Can i use it lifting like winch
Also, you said the hydraulic motor was turning at about 90 rpm. Any idea about the torque rating on the motor at that speed?
how much pressure are you getting out of that system
How many HP is the motor? At what pressure does it start to slip the belt and what line and work pressure were you able to achieve??
this would be cool to use on a shop press.
I've had one running a shop press for about 30 years... But I've got a bit bigger Reservoir. I've got a 5"×30" cylinder and a five gallon bucket that is a little over half full...not only ads enough oil for it to work, but also some cooling!!
Drawback is, power steering pumps are generally set up for 1,600psi... But it does work!!
@@GosselinFarmsEdGosselin what size electric motor runs yours?
@@jesselawson1169 good question!! I just looked, can't find anything.. either not marked or I just can't get in to see it. If memory serves, I think it's a 2hp. Maybe 2.5???
@@GosselinFarmsEdGosselin right on. I bet having a 5" cylinder helps it make pretty good power with the power steering pump. I would assume it's pretty slow though?
Hey great set up! I am currently trying to build a basic hydraulic power system similar to the one you have assembled, however I was a bit unsure on how to connect the various valves, pumps and motors. When the operating valves are closed does the pump simply circulate oil under no load back through the reservoir?
yes
specifically looking for how to make the pump do the work..basically what you built here is what i want to make so i want to know how to build one
What is the horse power of the electric motor & how small of an electric motor do you think you can use on this application
Nice setup. A friend of mine has been using power steering pumps for years to power hydraulic winches, etc. You should really consider removing those two cast iron 90 degree elbows from the plumbing department. They are not rated for nearly the pressure that pump is capable of making. Those fittings are for low pressure water or natural gas, not high pressure hydraulic systems.
agreed, you need fittings good for 3000 psi or better
I sell hydraulic hoses and fittings. I've never heard of the 90 deg compact fittings being rated at less pressure
What is the max psi the steering pump can generate? Also, at what psi is the pump internal relief set, can it be adjusted? The directional valve should have max psi up to 2500psi but is fully adjustable. An indication that both reliefs are set too high is the belt 'squeal' when he maxes out the cylinder stroke. I would be concerned with the black iron cast 90's in the working ports of the valve. I've never checked the max output of a steering pump but I'm not really sure if it would produce enough flow and pressure to be practical other than a 'working model', which is pertty cool. Alot of people probably could never have done what he did. I admire his capibilities. I spent 16 years as a hydraulics tech building industrial power units and the machinery they ran for the offshore oil&gas industry. I specialize in clossed loop systems ranging from 75hp up to 600hp......interesting work, I no longer work as I had to leave to fight lung cancer which I BEAT, but the chemo and radiation beat me, lol......
james moore. glad you BEAT that evil disease. keep going strong.
@@joseluisrodriguez5302 thank you sir, I tell people God is not finished with me yet so he kept me around. 9/2/14, the doctor gave me 'about 90 days', God showed him differant.
I'm not exactly sure, I need to find a pressure gauge that I can test this with, I'll have to look around.
When running the hydraulic cylinder, with cylinder fully extended...is there any fluid even left in the pump??? I wondered how the cylinder even did a full stroke without using all fluid from the reservoir? That is a GREAT video, an eye opener for me for sure.
The cylinder he is usin g is a doub le acting sylinder which means that the hydraulic fluid coming out of one side is going in the other side. This means that you are just moving the oild from one side of the cylkinder piston to the other. A single acting piston wouild be a problem that is where the system just will push the cyliner in one direction like out of the cylinder then a bypass is opened that with weight on the end will force the cylinder down and the fluid back out. This setup uses fluid from the reservoir. So double acting cylinder is powered in and out so oil is swapped to other side of cylinder. Single acting is powered une way usually out so it draws fluid from the reservoir then when something pushes it back in the oil is returned to the reservoir
Closed system , the oil from the unloaded side returns to pump as the ram exrends
cool playing w same idea not sure about auto power ster pump maby you could use rmote rez pump from gm big blo trucks . did youse hyd fl what gpm could swap pully size for rpm unde drive or over drive. could work in small graden tractor loader iam a welder ican make myown stuf
Excellent! this is exactly what I have in mind for a log splitter...any idea how I can work out the power in tonnes on the ram, is this dependent on the ram size or the power from the pump? and advice would be appreciated :-)
I would think the equation 'pi r²' would work.
Example;
Pump pressure =1000 p.s.i. (pounds per square inch)
piston size of cylinder = 3 inches
radius of 3 inches is 1.5 inches
1.5 inches x 1.5 inches = 2.25 inches
2.25 inches x (pi) 3.14 = 7.065 inches
So using the above equation, utilizing a pump putting out 1000 p.s.i. and a cylinder with a 3 inch piston would yield 7000 p.s.i. of force.
That is IF I'm correct in my thinking.
Hope this helps.
@@russdavis1960 your psi is 1000 equals a total of 7000 pounds of pressure, or 3.5 tons of force.
Electric motor is 3500rpm. Output at hydraulic motor is 90rpm.. wow.. good to know.. I'm new to hydraulic.. thnakss
That hydraulic motor you are using now can it be use as a hydraulic winch? How many tons can it pull?
Somebody invented the wheel yesterday
Is that set up in the video for sale
Hi, hope you can list all the part you use. Thank you
I build one to be used for a log spliter. It had no power
Thanks for sharing. That's interesting, what were some of the specifics of your setup, i.e. - type of pump and cylinder volume? Also what were you powering the pump with?
From what I've read, most power steering pumps are pressure relieved at about 700psi and have a MAX of 1300-1400psi, also are very low flow between 1-2 gpm.
Might work great for no-load or low load applications, but you're not going to build a log splitter or anything like that. Also the limited oil supply will heat up quickly with repeated continuous loading, like powering a motor to run a small vehicle. Still...useful for the right things.
can we add a bigger oil tank?
I really would like modify this set up. I wish I could talk to you and run my design by you to see what you think. This is very clever the way you are able to use basically junkyard parts and make it work. That takes talent I think.
That's awfully kind of you thanks. I'm far from being an authority on hydraulics, but I found I could learn a lot just by hooking odd parts together and observing the results. I'm considering building on this concept and incorporating it into an injection mold setup.
@@ObixMT Your probably going to get a good laugh. I wanted to replace the electric motor you are using to run the power steering pump with a bicycle. I want to use human power to run your set up. On the business end of the device, mechanical power converting to electricity. I have a few different designs but I am not a mechanic. Check out this video concept and tell me what you think.ua-cam.com/video/JrRZbIchx_8/v-deo.html
how strong though?
With that valve you can do a throttle control to the motor o just on-off?
Hey thanks for watching! I'm actually getting close to putting some of this on a '76 Farm King tractor, I'm building a front end loader for it. Also, will be adding a hydraulic motor to a tiller that will go on the 3-point. What part part do you have a question about? If I can be of help I'll try ;o)
I am thinking of taking my 8 horse power engine off of a rototiller and attaching a hydraulic motor on it with a pump powering it off of the tractor, is there any way to speed up the hydraulic motor?
Obix which motor could be Installed above a hollow brick machine?
I’ve always had this idea in the back of my brain but never had anything that needed hydraulics
can u make a video on how to make one?
Can you do load test. How much it push
If you think about it, you could potentionally make these hydraulic motors into a generator if you know how to.
Pasta Sarmonella E-Specialé why would you do that?
MichaelKingsfordGray no kidding, why convert electric to hydraulic back to electric?
Probably meant that you have an liquid fuel engine(car engine) running the pump, so gasoline to hydraulic to electric. But that's still pointless, just have the engine turn over a generator.
Could a tractor with rear hydraulic remotes operate that motor as well? Is GPM a concern? My tractor remote levers should operate a hydraulic motor.
+Drew6709 Generally pumps like these run at about 2GPM and between 1250-1450PSI which is fine for garden tractors. People have used these with great results as replacement pumps for hydraulics on garden/lawn tractors.
Thinking about turning an old pick up into a back hoe or a front loader. Any advice. Its 4x4 so I could use the transfer case to run the pump but then I couldn't drive it. If I use a steering pump I dont think it will handle much weight.
You need to attach another steering pump
Whats the gpm on a power steering pump
what the flow rate
This is nice, but for a high demand application the pump probably will need maintenance soon as it is a vane pump. The pump produces flow not pressure, anyway, depending on motor power and pump displacement, you could get a lot of pressure (1000 psi and up), or a high flow pump will give low pressure but high flow. Normally gear pumps or piston pumps are used for the ideas suggested. Gear pumps being not much expansive than a vane pump.
2 pump s uh mite kill2 burds w one stone how would run parallel .
yo quiero hacer esto mismo pero con un gato botella de 20 tonelada como lo intalo y esa palanca que utilizan para estirar y encojer como se llama o no hay otra cosa que sea mas economica y espichando el gato manual mente serviria en la espera de su ayuda
debería funcionar, pero podría empujar el gato demasiado rápido. extrema precaución se debe utilizar con las pruebas. Estoy pensando en hacer esto para hacer un divisor de madera
Do you still remember, What number hydraulic oil do you use?
I've got a dual spoil valve on my tractor I've been told by the internet isn't worth rebuilding. Would you be interested in using it for a video?
It would only need four cheap orings to reseal it ,I wouldn't throw it away just yet. p.s. I've got 30 years in hydraulics and some people on the net don't have a clue!
Hello:
What is the maximum load your hydraulic cylinder can bear? and what is the maximum energy consumption of your motor when this cylinder is under maximum load?
hi did you already know? I also need its specs for my project
attach a pressure gauge next time. Anything can seem to work with no load. Lets see this setup under pressure and see how much work it can do and how much pressure it can generate. I'm betting it bogs down and does not generate over 1000 PSI, probably much less then this. Sorry I know this seems to be bashing what you did, I just want to know how useful such a setup actually is. Thank
I was wondering the same as to loading it. like the effort two thumbs up
Most gm pumps run between 850 and 1200 psi, at between 10 and 20 gpm (the older ones being higher flow, but generating more heat and drag on motor).
So with a hair under a square inch of piston your looking at between 800 and pretty close to 1200 psi of force, maybe not good for log splitting but would be perfect to move a 3 point hitch around.
Also those are rated at 5k shaft speed.
Looks like a 2" diameter cylinder,you'll only get 1.5 tons push out of it max .
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I'm curious but this also might be a stupid question has anyone put this actually on their tractors and has anyone had any pressurizing problems to blow the fittings underweight of course
its called hydraulic assist steering been out for years
I was a bit worried with a large number of fake reviews but I am very pleased with the results. Bit of background, ua-cam.com/users/postUgkxmKn8dCAXovWn8_cLYoosGLVrVrpwlIMc I need to split approximately 1.5 cords of wood and didn't feel like destroying my back. I purchased this anticipating to have a few issues splitting wood but have only come across a few logs of elm where the stringy nature of elm made it more difficult to split. Overall its not a necessarily fast process but it also isn't a very arduous one either. I came and went fairly often to do different tasks but once I stayed and got into a system I could easily split my pieces in a fairly timely manner.
I’m not a mechanic or engineer. Without changing your test set up, what kind of load can the motor you are testing take?