Welcome to Keene Engineering! The world leader in innovative portable mining and prospecting equipment. Family owned and operated since 1950.
We are experiencing shipping delays on certain items. Please call for shipping lead times
~ 818-993-0411 ~
Rain, especially heavy rainfall or flooding, can “bring gold back” because it acts as a natural force that loosens and washes gold particles from the riverbanks and bedrock in mountainous areas, carrying them downstream where they can be deposited in more accessible locations for prospectors to find; essentially replenishing gold deposits in rivers after erosion from previous weather events.
When heavy rain occurs, the rushing water erodes the soil and rock along riverbeds, dislodging gold particles that were previously embedded in the sediment.
Since gold is a heavy metal, it tends to settle to the bottom of the riverbed, getting caught in crevices and behind rocks where water flow slows down.
Large flood events can significantly increase the amount of gold transported downstream, further replenishing gold deposits in certain areas.
So gear up and get ready for gold season!
You’ve GoT This!
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!
—- GOLD PRICES ARE UP!!! —-
Let’s get you geared up for GOLD SEASON !
BE PREPARED!
A pool, a spa, a pond, all full. You see it time and time again in news reports of the aftermath of a devastating fire. With a Keene FireFighter you will have an invaluable tool to defend your property. Isn’t it worth the investment to have one and never need to use it? Don’t regret it, be ready instead.
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!
WHAT’S HAPPENING…
We are preparing for another production run of our RC46 Rock Crusher, and we are currently manufacturing the heavy-duty rollers.
There is a lot more work involved than meets the eye. We begin with an expensive alloy-steel tube, which is cut into 6-inch sections. The inside of each section is carefully machined so the side plates can be inserted. A shaft is then driven through the assembly.
Next, each roller is mounted in a lathe and checked to make sure it runs perfectly true. The rollers are then placed in an oven for more than an hour and heated to over 800°F before welding. Preheating the steel helps control stress and reduces the risk of distortion or cracking during the welding process.
After welding, the rollers are placed inside a large tube filled with sand. They are completely covered and allowed to cool slowly overnight.
The following day, each roller is placed back in the lathe, checked again for accuracy, and cleaned to remove the scale created during heating. The completed rollers are then sent to a professional heat-treating facility, where they receive two or three separate heat treatments.
This process gives the rollers the hardness needed to crush rock while still maintaining enough toughness and flexibility to resist cracking. It is a time-consuming and expensive process, but it is necessary to produce the durable rollers used in the RC46 Rock Crusher.
Braam Kruger
What's the chances of getting a jet/log tube clamp? One broke off my 4"
This is another working video of the 6" super max working
Wow that Like 2 grams a hour
Nice. If we could dredge again in California, I have a claim on the Klamath River that’s paid 3/4 of an ounce in 6 hours with a 6” dredge.
Just think how much they would get with the 8" supermax!
Super wowsers!
Since we have talked about the 6" Smax dredge, it is an older cool video we made up a few years back.
what a rig!
This is an old video of the 6" super max in my dad's old pool when we were developing it. Old but good information. Hey, I was younger here.
I fine tuned mine in my grandparents hot tub back in the 90s 😁
Wow!
Prefer this product
Sky here hey is that the same pool me n Pat tested my new 2" dredge 45 years ago?
I am working on a quick video of building and adjusting the 6" super max dredge. Tell me what you guys think. I do have detailed component instructions. Plus, I have another original video to post. Not for sales, but more for better understanding and assembly.
Please I'm interested to see videos
Yes please do
This is a few quick videos of a 2" backpack dredge being placed on a backpack. The guy did a great job. The motor tools and fuel will be transported separately.
Heck yeah, send me a 3” to Maine and I’ll test out the idea for ya 🤣🤝
 Nice job, bro
Goodshit
So where can we go dredging these days
My very first dredge before communist California outlawed dredging.
Chad McClaskey yulp
Third time I have come across this video since posting and third time I have reacted as this time and the past time, I didn’t see My reaction saved by the fb.
Looking good Brad Mercer
We are making a big run of our P1500 pumps, used on larger dredges.
Our P1500 pedestal pump has proven to be a real workhorse over the decades. Paired with the 40 HP Vanguard engine, this package has become one of the most dependable setups we build for serious dredging.
It takes the right drive components, proper isolators, precision alignment, and a lot of detail work to make a package like this perform the way it should. This is where good old American manufacturing skills, mixed with a little school-of-hard-knocks experience, really make the difference.
Our pumps may not be the cheapest pumps in the world, but they are built to last for decades.
Unfortunately, prices continue to climb in the casting world. Our cost on raw castings here in California has doubled over the last three years. The good news is that we still do all of our own machine work in-house, which helps us maintain quality and keep some of those costs under control.
Built in-house. Built to work. Built to last.
Can it be shipped to China?
I wonder how long til you relocate to Az or Nv.
is there in Dubai where I can get your drywasher latest model
Just talked to a few of the guys running our newest 8" Super Max, and the first field reports are coming in strong. The dredge is working great.
You guys have no idea how important this is to Pat and me. We busted our asses designing, building, testing, and refining this dredge. We have been doing this for a long time, and we put everything we had into these new machines.
Just look at the flow coming off the side boxes — smooth, calm, and even. That is exactly how you catch the fine flower gold.
The main 40 HP Vanguard is running just a little over half throttle with 40 feet of hose, which is impressive. Running 40 feet of hose is a lot for any dredge. Even the 13 HP engine powering the sump is only running around half throttle.
That tells us the design is working exactly the way we wanted it to. Proud of this one.
Price?
Good on you guys. She’s a beauty.
That’s not the one that went out to NZ was it?
I’m sure you guys built the best. I love my Keene equipment.
Looks great! Congratulations on another awesome product. Love my DW3 12V Max Drywasher! Two questions Mark - Do you have a California compliant model and does it come with a Keene hat? 😆
Would Love to see clean up from sump and see what mesh it’s catching
40 mile!
Well done gentlemen!! I sure would like to run that baby!!
Wish I had one of those back in the day on the Merced.
This is my future retirement investment for gold and diamond dredging in Sierra Leone West Africa.
Love to have that set up in Your Finny hole Lol
Maşallah
That is seriously bad ass!!! I hope that guy nails it on the shiny stuff!!
SIMPLY GORGEOUS. Nice Job. Your father would be Proud...
Shes purttyyy 😍
When a lot of hard work pays off!! You build equipment to be proud of. When I think of made in the USA, I think of Keene Engineering. You’re in there with Chevy Remington and apple pie. This dredge looks amazing. The kind of gear you get after a lifetime of hard work creating and refining your craft and skill set into this latest build. A rolls Royce of dredges. Very well done!!! Gentlemen. Congratulations. I salute you!! ⚒️🇺🇸✨✨ God bless America.
Thank you everyone for the kind comments. We are always going through a learning curve, and we will always keep making changes and improvements. In fact, on the next dredges we build, we already have a few changes in mind. I would love to take this dredge into the Finney Hole with some blasting material, a big bad-ass winch, and a few years to really clean it out. I believe there could potentially be hundreds of pounds of gold sitting on the bottom. Right now, the hole is around 30 feet deep. My grandfather had it down to about 40 feet deep years ago, and we believe it may be roughly 50 feet deep overall. The biggest challenge is the giant boulders down there — some of them are the size of Volkswagens to buses.
Best Product ever...
WHAT’S HOT!
New and Improved Super Concentrator with an even better price!
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
This Super Mini Max Power Sluice Concentrator unit is the most versatile package that we have ever offered.
NOW OPEN TO THE PUBLIC!
