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

You can do it!

There is so much more to reclamation dredging that just hunting for gold! Recent flooding has created a demand for cleaning out waterways, clearing out ponds, 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



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!


Get your copy of the new Keene Catalog!

Click HERE to request your copy today!


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This is a quick video on the new gravel pump package. Capable of pumping up to 4" sphere. Can transport material over 1000 feet above the water level. It can pump around 5 to 20 yards per hour. Weight only 1000 lbs and is 48" long, 26" wide, around 4 feet tall.
Not sure on the price just yet but roughly 25K less the primping system. We should be able to have a turn key system for 32K
Typically purchased by contractors and different lake associations.
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Comment on Facebook

This one will be used up on the Yuba river dredging out fish ladders.

Could it be used to pump concrete?

Back on our gravel pump package. Just got the frame back from plating and it looks great. Should have it don tomorrow with a little luck. ... See MoreSee Less

Back on our gravel pump package.  Just got the frame back from plating and it looks great. Should have it don tomorrow with a little luck.

Comment on Facebook

Looks nice, I’m excited to pick up my crusher from you guys!

4" gravel pump system. Passes up to a 4" sphere and pumps sand and gravel over 1000 feet away. Can move 5 to 25 Yards per hour. We are working on the lightest, most compact, cost-effective system ever built. We will be updated you with changes and testing as we go along. We have some very cool new things we are trying out. ... See MoreSee Less

Comment on Facebook

Yes this should work for irrigation pipe just bigger pipe. I have used one in the sewers of Santa Monica about 20 years ago.

Nice and compact, looks like it could be multi purpose as in deepening ponds or deepening water for boat docks.

Would it work. For irrigation pipe cleaning?

Go deep, or stay home!?

Check out this guys Channel Coachman Road show. Watch this quick video on DW212V ... See MoreSee Less

Comment on Facebook

Aidan Willis

Como faço pra te uma máquina dessa

But did he find any?

Lending out our the Beast RC8x12 rock crusher. Takes football size rocks down into 100 mesh in seconds. Can crush up to 4 tons per hour. Serious piece of equipment. These guys have their own Youtube channel MiniOperator, Check them out !!!
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Comment on Facebook

Not sure on the build cost. Back 10 years ago we talked about 30 to 40 K Now a-days at least twice that. Not sure if we are going to go forward with the project not enough demand. Unless we get a lot of offers to build them

This crusher is awesome, hope I can get one someday

How much $$

We installed the belt guards todays and the machine looks a lot safer. We are taking it out in a few weeks to see how it performs in a real mining conditions. ... See MoreSee Less

Comment on Facebook

Take me! Take me!

Jeff Williams

Rock crusher?

That is awesome! Just what I want

Just a quick video, trying to get back on the Big RC 8 x 12 rock crusher. Worked great today just needs a little tuning on the rollers. Should run upto 4 Tons per hour and crush down to 75 to 150 mesh. ... See MoreSee Less

Comment on Facebook

Yes we should have worn a mask !!! I had a sour thought the next day.

We are going out to test site a few weeks from now and yes you do not want to breath the dust. We only ran a few buckets and I did feel it in my thought so alway where a respirator.

Mark Keene would love to test it at my hard rock mine !

Looking good. Just needs a little water mist.

Until we break it again!

I need one for the clay balls in AZ.!

Nice powder.

Kyle Aarreberg that what we need

Good job

Not good breathing that dust in.

Trust the process, even when it's difficult.

Now, invent how to control the DUST. cheers

for what use??

Great way to get silicosis.

Steps must be on backorder 😂

Dead man walking

Nice silica dust, inhale all u can

Dude! Wear a mask!

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I went out to an AMRA outing in Barstow, Ca. Area and took one of our DW212V dry washers and did a quick video. I figured I had not used a 12-volt dry washer in years, so let's go out and try it and see how it works. To be honest, I was blown away. This machine did much better than I thought. It was easy to set up and operate, plus it was quiet and performed exceptionally well. It handled more material than I could shovel. When I was out there, there were a few other Keene DW212V dry washers out there, and all I heard was that everyone loved their Keene DW212V. We found some decent gold, especially for only running a few buckets of dirt. I even grabbed about some of the tailings and panned them out when I got home and only found a few fly poops. The 12-volt motor ran cool and only drew about three amps. I am proud to have my name on the machine, and it is all 100% American-made. ... See MoreSee Less

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Comment on Facebook

I sure like mine. I've been using it for years.


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 $350.00!

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


Model 6220SMAX

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