Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -8 (8 square holes per one linear inch)

Model#: CS8

Features a balanced handle for ease of carrying and the flare is detachable for storage and packing.

Dimensions: 10″ x 51″ x 4.5″

Large 18 inch flare

Weight 11 lbs.

Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -4 (4 square holes per one linear inch)

Model#: CS4

They key is in the small ribs that help capture and trap the fine gold that would have been washed away without it!

Matting is sold in units that are 12 inches wide by 36 inches in length.

Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -2 (2 square holes per one linear inch)

Model#: CS2

Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -30 (30 square holes per one linear inch)

Model#: CS30

The new and improved Mini Max Power Sluice Concentrator is the multi-tool of prospecting. We have changed our updated machine from a double pump system to one single, larger pump. The new pump provides not only greater water flow and higher head lift but also a larger diameter pressure hose which creates a higher flow than the double pump system. We’ve also doubled the hose length to 8 feet, added a new ball valve for precise flow control and a screw on connector that requires no tools.

Whether you are working river banks, desert placer’s or just cleaning concentrates for larger dredges and equipment, the Mini Max is a prospecting tool that will always be part of your arsenal. This multi purpose package includes a removable mat for the lower sluice box, converting it to a professional clean up machine simly by sliding out the green rubber riffle and replacing it with Miracle Matting. It is also supplied with an additional finer woven mesh screen on the top hopper for using it as a concentrating system. Another new improvement is that the Mini Max is powered by a single 2200 GPH, 12 volt pump made proudly in the U.S.A. The top hopper is equipped with a flood header that provides smooth water flow through the trough, over a slick plate and in to a 6 inch section of miracle mat that gives you a preview to any captured gold! The top sluice lifts off easily so you can inspect the lower sluice, eliminating the need for cleaning. The material is then washed over a removable classifier grizzly screen, removing the oversized waste gravel. The bottom sluice box is lined with our green rubber riffle that recovers ultra fine gold and can handle larger volumes of material. When used as a concentrating system, the lower sluice is partially covered by oversized expanded metal. When used as a power sluice you can expect a capacity of up to a quarter of a yard per hour and about a third of its capacity when used as a concentrating machine. This Mini Max can also be operated by a small, single gas powered pump such as our P90G Pump Kit. This device is ideal for back packing given it folds up into a compact size of 36 by 14 by 7 inches and weighs under 23 pounds. The four independent legs fold up with our new pin-lock folding system with large wing nuts that make it a breeze to adjust elevation and articulation. Thw Mini Max also includes a mountable flare for use as a hand sluice.

(NOTE: The miracle mat in the picture is now green in color instead of black)

Net weight 23 pounds.

Often gold claims are hard to access, and having an extra pump seal can save time; since it can be changed in the field with simple hand tools.

For Honda GX270 and GX390 engines with 1 inch shaft

The bottle unscrews for quick and easy clean out.

You will wonder how you ever prospected without it!

A new professional 25 inch gold wheel that produces unparalleled performance in both speed and fine gold recovery. Recover ultra fine gold better than anything you have ever seen before. This amazing recovery is due to its soft rubber spiral wheel that has an extremely cupped sharp edge riffle. Experience precise and smooth speed control with its long life replaceable geared bearings spiral wheel. Equipped with electrical back panel with speed control, plug in battery, pump terminals and on/off switch. Another unique feature is the metered gold tube that easily screws into the back of the wheel to remove values and a black sand collection funnel to collect a first run of concentrates. The water flow tube has metered water jets for precise flow. Set up by inserting three stainless steel legs and connect a 12 v battery and your ready to witness the most advanced recovery spiral system on the market today.

NOTE: 5 gallon bucket and battery not included.

Net Weighs 28 lbs.

Adds extra support for the hopper when expanding an A52 sluice box into a highbanker system.

Also provides extra room to create a low pressure zone at the head of the box to collect the fine gold.

See the amazing recovery of micro fine gold that this mat produces. Miracle Mat sets under the classifier screen that is placed at the head of the sluice box. Spot ultra fine gold easily and quickly by checking the Miracle Mat.

New green color, old color was black.

KSCRM Full Mat is pre-cut to 35 x 35 inches.

This suction nozzle works with 2.5 inch suction hose and has a net weight of 3.5 pounds. A 1.25 inch pressure hose is easily secured to the nozzle with a 1.25 inch threaded coupling.

Proper width of the sluice box used with this nozzle should be 10 inches to 12 inches wide.

Suggested engine/pump combinations are: GHX50/P90, GHX50/HP100, GX120/HP200.

Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -12 (12 square holes per one linear inch)

Model#: CS12

Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -20 (20 square holes per one linear inch)

Model#: CS20

Keene sieves are used for sizing material down before processing through a sluice box, gold pan, or gold wheel. Stack various mesh grades together for multi-tiered classification! Conveniently fits over the top of most 5-gallon buckets and constructed of high-impact plastic and stainless steel mesh.

Size: -50 (50 square holes per one linear inch)

Model#: CS50

Absolutely ideal for small creeks and testing small placer deposits. Features a removable flare for easy backpacking.

Dimensions: 6.5″ x 11″ x 33″

We have tested this riffle design for several years and are amazed at its high capacity and exceptional fine gold recovery. Easy clean up, slide the riffle section out, set the sluice in a bucket and rinse with water. The recovery riffle area is 40 inches in length, totaling 63 inches overall. It weighs only 9 pounds and folds up into a small package quickly and easily with a strap for carrying or backpacking. Stays straight and rigid, will not buckle or flex. This model is compatible with our power sluice conversion kits. Net weight is 9 pounds. Shipping weight: 15 lbs.

Dimensions: 10″ x 51″ x 4.5″

Often gold claims are hard to access, and having an extra pump seal can save time; since it can be changed in the field with simple hand tools.

For Honda GX120, GX160, and GX200 engines with 5/8 inch shaft

Features a military style backing.

Great for your hat, tie, or lapel.

A specially designed jet tube is slightly larger than the inside of the suction hose, eliminating any obstructions in the power jet.

The quick coupler is glued onto the end of your dredge hose to allow fast connection to the power jet.

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 grey hard Marlex pontoons. The model 2004 comes equipped with a suction nozzle.

All models include 15 feet of suction hose.

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

This amazing rock crusher is ideal for the gold prospector interested in a light-weight and economical high-speed machine. Material is gravity fed into the hopper and drops into the center of a high-speed tube. The centrifugal force throws the rock into a hardened steel impact wall at speeds in excess of 400 miles per hour. The harder the rock, the easier it shatters into instant powder. If any uncrushable particles are fed into the unit it will automatically pass them without damage or hesitation. All material after crushing then passes automatically into a five-gallon bucket sealed chamber providing a low dust environment. Ideal for crushing all types of quartz, schist, limestone, etc. This new machine is also ideal for crushing black sand concentrates to release any encapsulated micron gold for further processing. Mounted to a vertical 5 horsepower engine, capable of producing up to 100 pounds of grind in just one hour in a single pass. Multiple passes may be desired for finer grinds. Designed primarily as a pilot mill and not a production machine. The maximum rock size that this unit will handle is one inch.
Weight 85 Lbs.

The feed hopper, belly pan and drum end caps are constructed out of a bulletproof Polyethylene Cross link plastic incorporating designs you can only get out of a mold. Keene put a lot of thought and testing before we built these molds and everything works flawlessly. Keene fabricated the drum out of aluminum punch plate with replaceable drums with a variety of sizes (such as 3/8” ¼” and ½”) for different applications. Keene has unique flipper bars that can be modified and even removed for different materials. The 5 adjustable articulating legs allow the machine to be set up in the most adverse conditions in just a few minutes also fine tuning only takes seconds. The sluice box can run out either side making it faster and easier to set up, plus you have a perfect view to watch the sluice box load while feeding. We recommend the KT10SA sluice box adaptor which attaches to our 10” wide sluice box (A52 or A52S) this makes a longer sluice box with Miracle Matting, expanded metal,1/8th inch classifier and a long rubber mat to smooth out the flow.

Mark Keene’s favorite is the Water driven motor KT10WD. The high-pressure water spins the water motor that drives a planetary gearbox that spins the drum. The high pressure P90GH Provides enough water volume and pressure to spin the water motor and provides more than ample water for the spray bars and feed hopper. Works similar to a high banker away from the water. The KT10 feed hopper sets roughly 2.5 feet above ground making it easier to shovel into and set buckets on the support for a easy controlled feed. The Trommel is a pleasure to work with since the tailings are kicked out 5 feet away keeping you dry.

This is truely a fun and effective tool to add to your arsenal from beginners to professionals!

Suggested engine/pump combinations are: GHX50/P90, GHX50/HP100, GX120/HP200.

Suggested Slice Boxes are: A52, A52S.

Suggested Accessories: KT10SA.