I am in the process of designing a hydraulic power pack to run a mining machine attachment. Hydraulic requirements are: 30 lpm @ 3000 PSI which translates into 10-12 KW H.P.U. The H.P.U will be fairly basic with pressure relief, return filter, breather and pressure/return lines leading to a cetop 3 manifold located on the attachment. So in all fairly basic.

We would like to use diesel driven unit. Can someone recommend a really compact diesel engine we can utilize for the above H.P.U. Of if you can recommend an off the shelf unit that we might be able to use rather than designing it from scratch.

Also, any comment on using 2X heldex (or similar) 24VDC power units for achieving the required flow and pressure?

Thanks in advance,

Losty

I think diesel is a better choice than DC electric. Flow falls flat on its face with DC powerpacks as pressure rises. Even with 24 volts, you'd be lucky to see 4 lpm at 3000psi. You could probably get your 30 lpm at 500 psi though.

There are many companies that can make custom diesel power units, but it would be best to talk to suppliers in your area.

The Amish people, who don't want to be dependent on the electric companies, use Hatz single cylinder diesels to run anything that would normally use electric motors. They drive a pump and send its oil through a loop system to all the devices and drive them with hdraulkic motors.

That includes all kinds of shop tools, Milk Coolers, Arc Welders, Lathes, etc.

Another thought might be to use several lower flow DC Power units instead of one. I have never used a DC unit so that may be the dumbest suggestion around so don't jump if it is. That way you could just run the ones required for the job at hand.????????