Welcome to Keene Engineering! The world leader in portable mining and prospecting equipment. Family owned and operated since 1955.

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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 very cool set up. A Keene KT10 Trommel with the 12 volt set up and the water motor drive. Plus he is running a double sluice box length. For the water motor mode we wanted to pump at greater distances and greater heights above the water level. So we upgraded the pressure to to a larger diameter size hose. We went from 1.25" to 1.50 size hose and with this we could easily double the length of the pressure hose with minimal drop in performance. With the larger pressure hose he can maintain the super lights weight P90gh motor and pump package. ... See MoreSee Less

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What does a rig like that cost?

This is a video that Patrick and I did last year on a bad ass sluice box for a high powered 8" / 10" dredge. It is nice to see the sluice box in action on Vern Atkinson dredge on bearing sea gold show in the discovery channel.

When we posted this video last year one customer made the comment that we are not very professional and we should not be so argumentative. Pat and I have good days and bad days. I feel very blessed that Patrick and I get along so well. We both have special talents the other does better with, so we make a great team. In fact, we have been together every weekend either, prospecting for gold with our E-mountain bikes or riding, to get in shape. We have been having some really fun adventures together. We may not put out most professional videos but we also just want to go out there prospecting, hiking and biking, just being out in the great outdoors. We do not script anything. You get all of the raw footage, mistakes and all but, it comes straight from the heart.
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Because gold is honest money, it is disliked by dishonest men

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That is a $weet box!!!

Love to see this monster in action.🤙

Very impressive! Pat

That's a big one, go Vern !

Shaun Frichette

Cool Vern was showing it working up there.

can I get a price ?

Is that back packable in to the stream? Looking for a nice sluice just like this. 😉

Randy Harper this is an awesome keen box apparently made for Vern. Curious to know the price tag

These guys are very knowledgeable and build all kinds of slices that get the job done.

Shaun Frichette Cannot say he is a good friend and a hell of a miner. This is his bread and butter and maybe whiskey!

Shaun Frichette need to price materials and factor in everything. Call me to discuss. The problem is is that we’re now getting busy and getting harder to build special sluices so we might have to wait till we have time add re-calculate cost.

The castle gates will always open for gold-laden donkeys

That woven wire will also aid in breaking up that bering sea clay that contains gold and put it where it belongs in the box. Great box guys.

Looks like the best of the best to me. Impressive!!

the sluice is not a cheap date roughly 10K

Nice work. I love the multiple surfaces.

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This is Verns box we built a few years back. He is putting it on action and it appear to be working very well. ... See MoreSee Less

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They have some big rocks tumbling through, wow 😮

Awesome‼️ Roy Miles

Gold still represents the ultimate form of payment in the world. Fiat money in extremis is accepted by nobody... Gold is always accepted!

This is a custom sluice box that we built for Vern last year ... See MoreSee Less

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Salt water dredging always looks like it is moving to fast there is always a foaming action on the surface. They could also be running the sluice box a little steep by flattening it out it will slow the flow down. Also you have to remember this is a very high powered 8" dredge you have to have the surface water moving quickly to roll the 8" rocks out. There are multiple layers in the sluice the lower layers are protected by woven wire that drops the water speed in half. I agree it looks like it is running fast however this is a 8" dredge and the top zone has to be moving at least 10 feet per second or the larger rocks will hand up in the sluice box

I seen your stickers all over the place up there 🔥

That is actually a pretty smooth box for a bering sea 8 inch.

I would think that's moving too fast. No?

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Doesn’t loose a spec. 100% recovery, I’ve tested many times! Gold won’t even make it to the 3rd mat.

I’ve had the same results, haven’t hit as good of pay yet. Gives me confidence for the next time out.

Love it!!

Well done Andy

Brand new dredge
This is our lightest and most compact 2.5” dredge ever. This dredge is ideal for shallow water conditions and dry land dredging due to very efficient blaster hose assembly and the new optimized suction nozzle. The motor and pump package provides a powerful suction with minimal weight and bulk. The quality Honda GX50 provide unmatched fuel economy, reliability and serviceability. The recovery has all the latest trick including our world famous Slow Flow recovery system.
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I haven't weighed it just yet roughly 85 lbs price is roughly 2850.00

How heavy Is it? That would be great for small creeks or areas where the water is spring runoff

How about a 'buy it now' link?

How much I want one????

Keene dredges and sluices are still my favorite over the rest. This one looks nice for the backpackers!

Can it be used in West Fork San Gabriel river??

What's the cost ? I couldn't find it online

Pretty cool pat and mark

I want one in the Netherlands

How much in Canadian $?

About time California engineers listen to a East Coast poor man engineer on building nozzle tips

Dredging Sucks

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This is a aluminum frame / roll cage for a 37 Hp EFT Vanguard Motor with a P1500 pump direct mounted. We built this frame out of 2" 1/8th " wall tubing plus some 1/4" plate aluminum and some 063 aluminum as well. Just the raw materials in just aluminum cost us over $350.00 With all the other add on such as the fuel tank hoses wire battery box rubber feet we had to add on 350.00 in cost. We also had hours of labor engineering aluminum welding etc. Unfortunately we may have lost or broke even on making the cage. I only charged them 1000.00 for all the custom work. Needless to say the next one will be a little more costly. So I charged them $8150.00 for the entire package next will have a few hundred added just for the frame. This is pound or pound one the most cost effective high performance dredge pumps in the world. ... See MoreSee Less

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Just call us @ 818 993-0411 and ask for Mark or Pat Keene


How do i contact you

How much to helicopter it in on site 😉👍⛏️

Keren 👍👍

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New and Improved Super Concentrator with an even better price!

KSCR Super ConcentratorWe’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 New Super Mini Max Power Sluice Concentrator unit is the most versatile package that we have ever offered.




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