Outer Limits 4x4 Board

I am currently working on converting a couple of warn low mount winchs to hydraulic. This is purely for competition so the price will not be feasible for a recreational 4by. It is purely as an option to the mega-buck setup in the winch challenge trucks, and from talking to some of them spending $6k plus on the full system is common place.

The system utilises a std Warn low-mount winch (High mount will just be faster again due to the lower ratio box). Removing the electric motor and replacing it with a high speed hydrauilic motor, also removing the internal brake as it is not needed due to the dual counterbalance valves in the system. With no internal brake in the winch there is no heat generation, so perfect for Plasma.

Due to the hydraulic system having minimal losses, the speed ofthe winch is directly related to engine rpm. So far the speeds that can be achieved are approx 10m/min full load first layer and over 15m/min full load on the 5th layer. Higher speeds can easily be attained but i have tried to keep it realistic as some competition officials may try and ban it! Load does not affect the system and the hydraulic pressure is very low, if full system pressure was to be applied theoretically you could have a 78,000lb winch but that little hex drive main shaft would look like a pretzel real quick.

If any is really interested PM and we can discuss it further.

whats wrong with an ox winch std setup? too slow??? or could this simply be modded to be faster?

One of the mogs at work has a hydraulic warn high mount.

Big Red Toy wrote:whats wrong with an ox winch std setup? too slow??? or could this simply be modded to be faster?

nothing wrong with the ox winch,they are one of the best built available, and internally they make a warn look weak. the problem lies in the reduction as it is only 6:1 where the warn is 156:1 so a LSHT geroller or gear motor must be run to produce the required torque. Using the high ratio internal planetry of the warn allows the use of a high speed bent axis piston motor which will rev to 10000rpm full load vs a series wound dc motor that will rev extremely fast untill sufficient load pulls it back.

id be interested in more info. my next mod is going to be a winch.

ToNkA wrote:One of the mogs at work has a hydraulic warn high mount.

Riiiiiight, like we care.

How about providing some value add to the topic and telling us a bit about it.

sean calsino from south east 4x4 had the same setup on the front of his land rover (max browns car) it worked really well

need a good power steering system and oil cooler to keep up to it in comp use

starting to run into problems with too much torque output, the piddly little 8mm hex drive shafts cant handle the power input even of the smallest motor i can get. Speed using the smaller motor is way better but i am still having to limit the pressure.

the smaller motor will also rev to 10000rpm continious, 11000rpm intermittent at full load (9500lbs 5th layer). so the svailable speed far exceeds an electric motor.

Does anyone knows of a stronger internal winch.

What about beefing up (and increasing speed of) one of the existing hydraulic winches, like the milemarker or ox?

How much bigger are the internals of the M12000 warn than the one you are using?

the overall principle is wrong , they use a LSHT motor to create the torque at low input revs. ox ratio in low is 6:1 compared to 156:1 for a warn low mount, thats how they get the torque from such a small motor.

Have a look at the Warn Industrial range, Neil Cooper and Roger Smith are running those in Victoria. Both use a Series 9 Hydraulic.

put a huge motor on the ox...just imagine how fast it will be then

a winch is a simple setup, especially if you are no needing the break. why not just buy a gearbox from an indusrtial distributor (i have the names at work) they are available in many ratios, configurations etc and you can get one that will handle what you are trying to do. just use a double bearing set up for the drum and then run the keyed shaft two the gearbox.

my old man has wanted me to build one for a while, but we were looking at bigger electric motors, haven't thought about hydrulic.

cheers

bru

RoldIT wrote:

ToNkA wrote:One of the mogs at work has a hydraulic warn high mount.

Riiiiiight, like we care.

How about providing some value add to the topic and telling us a bit about it.

Well 1mad is talking about this setup and hence I am saying that we have a similar set up here at work. If he wanted more info as he is designing this he could ask for it.

The value added to the topic is that yes they exist and they work.

What else do you want to know. I didn't build it or know who did, I just know it exists and was simply stating that fact.

If you don't care then fuck off you twat.

thanks guys but there is a reason for using a std winch. Mainly due to staying comp legal, and as an option for the mainstreem. I make hydrauilic uncoilers and winchs at work using 2-4 stage Brevini planetry drives costing upwards of $150k so doing it big scale is easy!

as said before the ox hyd requires more reduction, so i may need to look at fitting a small planetry to the drive side to allow the use of the high speed motor, Already done an ox with a BIG motor (315cc ) and running a 50cc pump. My system runs a 20cc pump and either a 5 or 10cc motor, therefore hp draw on the engine is heaps less. also a supply valve allows the pump to run continiously under comp conditions.