Here at Keene, we are always trying to push for better equipment, lighter, more versatile, etc. We are working on some new pumps that we can run on a DC system 12-volt plus. We have tried several of our pumps, such as a P90 and a very old P60 pump, with fair to poor success. We are now running some 3D-printed pumps as well. A guy on eBay and Facebook called Vortxrex Gold Mining has taken our P90 pump and runs a pump off batteries with success. I like the way he thinks he even uses the water from the pump to keep the DC motor cool.
These are a few pictures of the our simpe test on the P60 pump. We have a lot to learn about DC pumping. What I noticed there is nothing out there that does a good job with pumping water with a decent head lift just pumps that have ok volume but not ever over 15 psi . I even wanted to punp water out of a spring to fill my camper and no DC pumps would do it . I wanted to run my Mini Max but about 30 feet from the water and it did not have enough water.
Any budy that can help enlighten me would be helpfull.
It's a energy density issue, I believe the results you desire will require a much higher voltage and discharge rate. Imho.
A water jacket on that motor would work wonders.
The Johnson 2200 pump works decent for me.
12V..? Why..? When today there is much more..? 24v.. and you can still Power it with (2×) 12v..? But have lower losses..?
David Frank
how many rpms do you need to spin the p90 pump? QS138 72v motor and votol em150 controller combo should be able to do it with ease. You can also adjust the rpms/torque/power etc through the controller with a laptop. Might even be able to get away with a QS120 motor. Video of the qs120 motor running a jetski: youtu.be/Lt0ocjGOkcQ
These guys are in CA and could probably help ya out as well with a motor/controller/battery combo: electroandcompany.com/
These are a few more pictures of the 6" / 8" dredge we are working on going to New Zealand.
Hello , how much would 5 inch suction hose be shipped to Australia?? Any ideas ???
Getting excited about it arriving and using it Thnx Keene Engineering, Inc.
cool 😎
Just a quick picture of clean up with a Mini Max
The mini max catches ALL the gold!
This is a really fun project we are working on. A 6" Super Max dredge with a sump and extended floats and frame, but the really big kick is the 3 motors and pump with an 8" dredge to move the overburden quickly. So the dredge can be used as an 8" to move the low-grade overburden, but when getting in there and cleaning the higher-grade bottom material, switch back to the 6" and capture all the fine flour gold. I am curious how well the 24" box will handle the fines due to the higher water velocities. It may be okay since the three pumps work at a higher pressure into the jet rather than at a higher volume. You can make a power jet work with higher volume pumps or higher pressure. They both work, so this should be interesting. We can make the switch back and forth by changing out a few bolts and side plates in the dredge sluice. The conversation should only take about 20 minutes or so.
Hey Mark. Is this the dredge coming to nz
Damn that looks good.
Why not use different riffles to slow the water down?
Thats a beauty!
Awesomeness!
Nothing but the BEST from you guys !!!
Please take a look at this fantastic area. Everyone is having fun finding gold. It just does not get much better than this.
