Keene Engineering

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Chatsworth, CA
(818) 993-0411

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Vibrostatic Back Pack Dry Washer

The adjustable oscillating vibrator and adjustable flow gate controls make this Dry Washer ideal. The large feed hopper can hold up to 2 1/2 gallons of material enabling it production of up to 3/4 cubic yards per hour. It also can be operated with 'yard' type leaf blowers or our own "Vac Pack" system. This super light weight (20 lbs.) concentrator is a snap to set up without any tools and folds into a 11" x 21" x 31" package that can easily be attached to our Deluxe Back Pack (BP4).


Net Weight: 20 lbs.

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191 Triple Threat Drywasher

Model 191 includes the Model 190 drywasher, a 5 hp. Briggs & Stratton Professional Engine with enhanced air cleaner & oil filtration and 10 feet of heavy duty ducting hose. This unit can process up to 3 yards per hour.


Keene Engineering's Model 190 series Drywasher & High Banker Dredge Combination is the most advanced and user friendly unit on the planet. WithSix Unique Patents to its credit, this series includesSoft Bed Technology which creates a whopping 7 milliamps of constant current, resulting in an electrostatic charge ten times greater than any other drywasher. This unit also creates a positive charge on all dust particles that reacts to the negative charge of the ground, creating virtually a dustless environment. Blast Gate Technology provides for infinite adjustment of vibration and air pressure while Scrubbing Pins separate and liberate stubborn gold and create an even flow of material. The enclosed riffle bed creates a dust free environment and a compact single unit design for an extremely efficient machine. In a matter of minutes the 190 transforms to an extremely effective high banker and dredge. The 190 dry washer provides unmatched fine gold recovery that outperforms all drywashers and even rivals efficient wet systems.


Net weight 90 pounds
Shipping weight 120 pounds

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2" Backpack Dredge with Power Jet

This super high powered backpackable dredge is equipped with a lightweight and quiet heavy duty 2.5hp Honda 4 cycle engine that nearly doubles the power from our previous models. This engine and pump combination produces an unbelievable 100 gallons per minute and up to 160 feet of head pressure. The sluice box is specifically engineered for fine gold recovery and easy clean up. The Model 2004 is constructed with an aluminum frame and is supported with either black inflatable or grey hard Marlex pontoons.

For extremely shallow water conditions, a suction nozzle is recommended.

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3.5 HP Power Sluice Concentrator

This Concentrator is powered by a 3.5 horsepower Briggs & Stratton Engine and P103 pump. Equipped with 25 feet of 1.25 inch pressure hose, FVA20 Foot Valve and hose assembly.
Net weight of 82 pounds.

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Rotating Automatic Classifier

No more back braking bending over or shaking. Just start the 12 volt motor and watch the material sift and classify effortlessly and autoatically. The oversized material is constantly discharged over the edge into the discharge chute. The RAC comes mounted on four independent legs to work in any terrain. Conveniently fits over a 5 gallon bucket or pick up our RAC160 so you can mount it onto our Model 160.


Bucket & battery not included.

Weight 22 pounds.
Shipping weight 32 pounds.

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