Welcome to Keene Engineering! The world leader in innovative portable mining and prospecting equipment. Family owned and operated since 1950.


Rain means Goldrush!

You can do it!

There is so much more to reclamation dredging than just hunting for gold! Recent flooding has created a demand for cleaning out waterways, clearing out ponds, and dams, clearing boat slips and so much more! Ready to learn more? Read on!

Beach reclamation

The perfect kind of social distancing!
Let’s get you geared up for GOLD SEASON !

Pat, Mark & Teddy Keene



DON’T GET CAUGHT UNPREPARED!

*CLICK HERE TO DOWNLOAD THE PDF *


A52S Super Sluice Box has arrived!

Keene Engineering is very proud to present our newest member of our Sluice Box family!
The A52S Super Sluice Box is our new baby and we couldn’t be prouder! Learn what all the buzz is about by watching our video then get yours before there is a waiting list!


HOT OFF THE PRESSES!

Get your copy of the new Keene Catalog!

Click HERE to request your copy today!


WHAT’S HAPPENING…

Comments Box SVG iconsUsed for the like, share, comment, and reaction icons

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.
... See MoreSee Less

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.Image attachment

Comment on Facebook

It's a energy density issue, I believe the results you desire will require a much higher voltage and discharge rate. Imho.

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..?

A water jacket on that motor would work wonders.

David Frank

Start with a high RPM motor and reduce it, gear it down for the torque, this will heat up the motor so cooling is necessary, in the old days they used a flywheel, higher voltage 48-52v helps. Changes in Impellers could help, try a P100

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/

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These are a few more pictures of the 6" / 8" dredge we are working on going to New Zealand. ... See MoreSee Less

These are a few more pictures of the 6 / 8 dredge we are working on going to New Zealand.Image attachmentImage attachment

Comment on Facebook

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 ... See MoreSee Less

Just a quick picture of clean up with a Mini Max

Comment on Facebook

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. ... See MoreSee Less

Comment on Facebook

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 !!!

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Please take a look at this fantastic area. Everyone is having fun finding gold. It just does not get much better than this. ... See MoreSee Less


WHAT’S HOT!



New and Improved Super Concentrator with an even better price!

KSCR Super Concentrator

We’ve made it next to impossible for you not to add this little power house to your prospecting arsenal at only $425.00!


We are extremely excited to present the next generation of a dredge designed for the recovery of super fine gold

622SME

Model 6220SMAX


This Super Mini Max Power Sluice Concentrator unit is the most versatile package that we have ever offered.

Model MMPSCK



NOW OPEN TO THE PUBLIC!

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