Can someone tell me if I am on the right track here, and what I need to know to design this winch system?
Here's the deal. I want to get a hydraulic winch for my GN so I can pull all day without burning anything up or killing battery(s).
My thought is a 5.5hp Briggs & Stratton horizontal shaft engine with a hydraulic motor bolted directly to the output shaft, with separate resivour (sp?) that goes to the hydraulic winch, though some type of valving, perhaps manual for now and electronic later, kind of like a dump trailer has on it.
I found a 12K Warn Industrial hydraulic winch that has the following specs:
Maximum Rated Load: 12000 lbs (5440kg)
Maximum Wire Rope Recommended: 1/2" 26600 lbs (12065 kg) minimum breaking strength
Maximum Input Flow: 16 USGPM (60 L/MIN)
Drum Barrel Diameter: 4.0" (102mm)
Drum Flange Diameter: 8.24" (209mm)
Distance Between Flanges: 9.95" (253 mm)
Hydraulic Motor: 5.0 cu in
Gear Ratio: 36:1

PERFORMANCE SPECS - with 3/8" (9.5mm) wire rope
Layer Line Pull
lbs.(kgs) Line Speed at
15 GPM (57 l/min in)
ft/min(m/min) Wire Rope
Capacity
ft (m)
1 12000 (5400) 24 (7.3) 24 (7.3)
2 10140 (4610) 28 (8.5) 53 (16.2)
3 8840 (4020) 32 (9.8) 87 (26.5)
4 7850 (3570) 36 (11.0) 126 (38.4)

More specs at: http://www.warn.com/industrial/winch...ydraulic.shtml

What I need to know is:
1. How much hydraulic motor do I need to get?
2. Will the 5.5 hp Briggs be enough to drive this winch/hydraulic motor?
3. What else do I need think about with this proposed setup?

Thanks,
Chris

 

I think that you need to spec the pump to be able to provide at least 15 GPM at 1500 psi (the latter number is just what MileMarker uses, it will be part of your winch specs). That is actually a small pump, and a 5.5 engine seems like a huge overkill. In fact a PTO pump on the truck will work just fine for that, unless you want to run it away from the truck.
They sell all kinds of hydraulic pump setups, for instance here:
http://www.surpluscenter.com/sort.as...c&keyword=HPPD
They also have pumps and sometimes gas power packs.
The pump does not have to put out 15 gpm as long as it puts out enough pressure, you may just not get the top line speed.
-P

 

Thanks for the info Paul. Part of this deal, going hydraulic, was to also make it "portable", in that I might set it up so that the engine and fluid tank are mounted together, with quick connect lines that I could disconnect and move the pump then winch to something like a receiver bracket, and the engine would just sit in the back of the truck, running the hose over the tailgate. That won't happen initially, but it's one of my thoughts.
Plus, with the engine on the GN, with the winch, if my truck isn't towing tyhe trailer whoever is can still use the winch.
I have certainly had thoughts of using that PTO coming off the transfer case, but the independent engine will make it easier.

Thanks,
Chris

 

be sure you have a big enough resavore for cooling and dont forget a filter dirt and heat are the biggest enemies to a hydrolic system

 

I run a 13 hp to turn a small orbital motor and it grunts. If you have Princess auto down there, thats the place to find what you need. They have a great hydraulic section with different pumps and and Gas engines to run them. Is it possible on these trucks to run a pto? then you could run any pump, or if you could use your engine to run the pump.

 

I guess what I am trying to calculate is how much HP will be required to run my winch, given the specs, at 15GPM, it's rating, and whatever PSI necessary to give me maximum power. I need to make sure I get enough hydraulic motor to connect to the engine, and use the correct size lines and valves.

Thanks,
Chris

 

http://www.winchesplus.com/index.html

click on the "winches" link there they have gas powered winches some with 6hp motors

more GPM = faster line speeds

maybe this info could help

 

What are you winching with a trailer that you will need to winch all day for? I like all the ideas, I just can't figure out a way to justify it in my head yet. More info please!!!

 

Sounds like a good plan but dont think you are going to want to be moving that winch around that much because of its weight with a drum full of cable.

 

The general rule of thumb is it takes 1hp for ever gpm of pump output you need, I think that's at 2,000 psi so 1,500 psi would be a little lower but not much. Also you generally need one gallon of tank capacity per gpm.

 

We should keep in mind that 1 gal per GPM usually applies to the single acting cylinder systems to allow for cooling and reserve. A motor in a winch runs fine on a truck's hydraulic steering pump, which hardly has 1 gal of total fluid capacity. I would look at the power steering pump capacity, it is enough to run a winch; duplicate it on a standalone engine and you are done.
-P

 

Take a look at these units to power your hydraulic winch

http://www.go2marine.com/product.do?no=75758F

They are read to rock and roll. Just add a winch!

 

Wow! Thanks for the info, fellows. I am still researching this and the info you have posted is going to help.
As far as more info on what I am doing, I have looked at a video comparing winches from the major manufacturers, electric and a MileMarker Hyd winch. I was surprised at how little time you got out of an electric winch, and how much they heated up.
http://www.truckspring.com/winch-com...video_942.html

I figure I'll just spend some extra now, to get the best system, and never have to worry about it. I have used hyd winches on wrecker and roll-backs for years, so I know they are very high duty cycle. Doing it this way will keep me from having to run huge cables from my alternator/truck battery to recharge the battery on the trailer for the winch, or run the winch.
Plus, I don't pull anything small. It seems like when I get involved in something it always ends up really big, so I need to build big to save me money in the long run.
Something else I may be doing is pulling logs to the trailer or onto the trailer, and that might take a while, longer than just pulling a rolling vehicle onto the trailer.

Thanks,
Chris

 

When I bought my MM hydro winch several years ago, MM had a seperate power unit for just what you want. I don't remember the specs, but look it up.

http://www.winchesplus.com

That's where I got my winch from, they had the best price back then. They also have the power units.