Videos

This our latest testing on the Keene A52S High Banker Dredge combinaion. This is a upgraded A52S sluice box that is coverted into a powered high banker and dredge. This one piece of equipment provides hands down the finest non classifying sluice box in the world. The best high production back pack high banker dredge that handles the worst type of material such a clays hard packed. This outperforms all other machine out there due to the long classifier screen and superior spray bar design. The dredge also works very well due to the 1/4” classifying screen this really keeps the production high as well as the recovery. We have gone through many different types riffle designs and as well as rubber mats and screens. The combination of the different screen allows you to optimize the fine gold recover and high production levels in sluicing high banking and dredging. There are so many trick things that make the hole experience so much better.

This is our latest testing on upgrading our A52S sluice box. This is our first high production backpack high Banker dredge. The is designed to handle about 1/2 yard per hour with no problem even in stubborn clays and conglomerate rock. Can handle both a 2" or 2.5" dredge hose as well. Folds down for a small package making it perfect for backpacking into remote untouched areas.

How to service a P90G pump. Changing the pump seal.

This is our Keene A52S that we have converted into a Back Packable High Banker and Dredge. This add on hopper adapts to our A52, A52S, and even our Mini Max concentrator. We can now take our A52S and turn it into a high production high banker that should be able to process up to 1/2 of a yard per hour. The dredge package works amazing as well especially since we classifying the material down to 3/8 to 1/4"

This is our latest test with the 210 Keene dry washer. The dry washer works great just working out some of the feed issues to work out. Trying to build a dry washer that requires only a 2 man crew is changing at best. Some cool drone footage was misplaced just found.

This is a new 2" dredge model that is equipped with both a suction nozzle and a power jet plus, it incorporates our unique design, leg kit. This new dredge is by far, the most versatile dredge we have ever built. This can be floated and pulled around on the floats and now equipped with the new leg kit for a quick and easy bank mounting. Now it only takes a few moments to switch the dredge from a suction nozzle to a power jet and back again. Having the ability to bank mount the dredge with the new leg system is a game changer.

Finally, We have completed our testing on the new A52S Super Sluicebox. We have been working on this project for years and decided recently, that this is what the market really needed. 8 weeks of spending every weekend out in the field, testing multiple screen and riffle variations. We now have taken the best of our testing and have the ultimate sluice box where a customer who already has a A-52 can upgrade their sluice to the new designs. Equipped with an upgraded Mini Max legs system that allows you set up in just about any conditions, quickly. Upgraded riffle design optimizing, fine gold recovery with the use of expanded metal, miracle matting and carpet with Hungarian regenerative riffles. The new classifier screen consists of grizzly bars, aluminum punch plate and woven wire that provides the perfect classification for all sizes of material. This amazing box, allows you to feed unclassified material without classifying to yield, maximum yardage. This sluice box will handle more material than any other box out there and provide the ultimate in fine gold recovery. You will find more gold with this sluice because, you only have to handle the material only once. Just shovel bank run directly into the box or dump buckets of unclassified material into the sluice. The New A52S sluice box can handle at least double what any other sluice can handle, for its size. This new sluice box is also expandable into a high banker or dredge. We will be offering most the individual parts for most other sluice boxes especially the A52 and we are working on a screening system for an A51 sluice as well.

Patrick Keene and Mark Keene went out this last weekend and completed test #7. Be sure to watch the end of the video demonstrating all the new options that you can build from your sluice box. Once again, we both learned a lot and had a great time. We tried out several new screens and unfortunately with the few minor changes made in production things did not perform as expected. We had to make many changes to the framework and the screens. After making some of the changes in the field we had the system working much better. The good news is the recovery was amazing, the new woven wire top screen really did the trick.

New Keene Engineering 6220 Super dredge working in Madagascar
Customers first experience with new dredge.

This is Keene Engineering's Newest 6" dredge that is designed for super fine gold recovery even down to 300 mesh. This new dredge has it all, portability, breaks down into small component, amazing fine gold recovery high power and more. The new flotation system provides superior stability even in fast water and is very comfortable with all the deck space and the large carpeted center platform in center.

Special thanks to Tyler Trembeth for letting us use his footage.

Check out his channel at:
https://www.youtube.com/channel/UC_b8UNLGQkxgbtVdAPPNHVA

Patrick Keene and Mark Keene went out this last weekend and completed test #6. Once again, we both learned a lot and had a great time. We brought out 8 different test bottles of gold, containing small flat flakes and super fine gold. The good news most everything worked well and some screens worked better than the others. We already have new sets or screens ready for testing for this coming weekend "Test #7". Rain or shine. Most likely rain. Most people would be more than satisfied with what we have accomplished however, we believe that we can do better. We are excited to try out the new upcoming grizzly bars and woven wire. Even in our dredges, we have been getting away from the punch plates due to the gold skipping over however, with a grizzly bars or woven wire, this is not a problem. We just hope that the speed of water under the screen stays at the lower speed and velocity like we are seeing now. The modifications we have made are showing excellent recovery results. We are waiting to get more results from our testers, Kevin Brown and Nick Kieth. Keene Eng. strives to build the best mining equipment in the world, pushing the limits and constantly evolving.

Keene Engineering is bringing you along on our testing and development of our new A52S sluice box. We will be achieving the best high production sluice box ever built. The sluice box will eliminate the need to pre-classify material. This will allow you to move more material with less effort and better gold retention. This is also the easiest sluice box to set up, clean up and work in a greater variety of conditions. We will also be offering all these options for the thousands of a52 sliuce box's that are out there. The box is also expandable into high bankers and dredges. Follow us along and you may learn a thing or two, We are!!!

Keene KCT Crevice Trowel is the ultimate all-around crevicing hand trowel. We are demonstrating it for prospecting, metal detecting, and gardening. We also go through some destructive testing as well. Currently sells for $19.95. Part Number KCT

We are demonstrating the latest sluice box upgrades for the A52 sluice. We are taking you through a series of outings showing the progression of building the perfect sluice package. This is about the 4th trip out with the new box and more changes every time we take it out. We are also demonstrating our latest Keene crevice trowel, and honestly, this is a game changer light bulletproof the ultimate digging tool. We are showing the new folding leg system, New classifier screening system and some new rifle designs and mats for the sluice box as well. Once perfected we will offer these upgrades as a package or independently.

This is a quick video on how to prime a centrifugal pump on a gold dredge. Covers a few basic techniques and tricks.

This is a 4" gravel pump system that can pump high percentages of slurry over long distances. The pump can handle up to a 3.5" sphears. Used for mining applications and reclamation. Powered by a 60 hp diesel engine.

The Mini Max Power Sluice Concentrator is one of the most versatile packages that we have ever made. Whether you’re working in river
banks, desert placers or just cleaning concentrates from larger equipment, this Multi Tool of Prospecting will always be a part of your arsenal. This multi-purpose package includes interchangeable matting for the lower sluice box, interchangeable wire classifiers for the flood hopper classifier assembly, lightweight easy-adjust legs for unsurpassed setup time, and a flare that converts the unit into the Ultimate River Sluice. A newer stronger American-made 2,200 GPH 12 volt pump provides greater flow and increased head lift. This newly redesigned unit is now equipped with an improved ball valve that allows for more precise flow control and connects to a longer 8 foot pressure hose. A new flood header provides smooth water flow over a slick plate into a 6” section of Miracle Mat. The top assembly lifts off easily to inspect the lower sluice. Material is then washed over a removable 1/4” classifier grizzly screen removing waste gravel. The lower sluice is lined with 13 inches of our newly improved Miracle Mat placed under 10 inches of expanded metal, this duo recovers both fine and course gold and can handle larger volumes of material. When using it as a concentrator system, replace the high profile riffle with a second section of Miracle Matting and replace the grizzly screen with a finer 1/8” woven mesh screen, converting the unit into a 34 inch Super Concentrator. When used as a power sluice, you can expect a capacity of up to 1/2 of a yard per hour and about a third of its capacity when used as a concentrating machine. This device can also be operated by a small single gas-powered pump (P90G Pump Kit located on page 13). This ideal backpacking unit folds up into a compact size of 36” x 14” x 7” and weighs under 23 lbs. Pin-lock folding legs make adjusting elevation a breeze. The included
flare converts the system into a hand sluice as shown in Concentrator Kit- Model MMPSCK. American made and built to last.
Mini Max Power Sluice Concentrator Kit- Model MMPSCK Weight 23 lbs. The sluice box in the video is part of the Mini Max package.