Classifier Screens

Choose from 9 sieve sizes or order them as a set for a discount.

A must-have tool for rock hounding, gold and gem panning and proper classification of material to aid in fine gold recovery. Various screen / mesh sizes are available.

Special offer: SAVE MORE! Order one of our sets or all 9 classifier sizes for a reduced rate and you also pay just the single item shipping rate! CHOOSE SET OPTION IN THE DROP DOWN MENU.

An improved design over the old standard Keene prospecting classifier screens and sieves, this new classifier screen design is very clean with no need for screws or silicon to attach the stainless steel screen to the plastic housing. They also have superior UV protection and will not crack easily when left out in freezing weather.

These rock and gravel classifier screens are made of tough, high-impact plastic and stainless steel mesh screens. Designed to fit in the top of 5 gallon plastic buckets and over most gold pans, they are very easy to use. A must-have tool for the rock hound or gem and gold panner.

Classifiers overall height is 3 1/2 inches. It's been carefully designed to allow up to four classifiers to be nested together with an overall height of only 6 1/2 inches. These are very compact sieves and easily transported.

Classifier Screen (mesh) sizes:
1/2 inch (our largest screen) is about 4 holes per square inch (use to remove worthless larger rocks)
1/4 inch about 16 holes per square inch (use to reduce size of gravel material for easier sluicing or panning)
1/8 inch about 64 holes per square inch (use for final clean up of gold concentrates from black sand or for recovery of small gem stones)
1/12 INCH MESH - good all around size.
1/20 inch FINE MESH is about equal to window screen (use for final clean up of FINER gold from your black sand or for recovery of very small garnets and gemstones, etc...)
1/30 inch SUPER FINE MESH - a very tight weave
1/50 inch VERY FINE MESH - 2500 holes per square inch- OFTEN USED WITH #30 and #70 screen for BLUE BOWL CLEANUP
NEW! 1/70 inch VERY FINE MESH - 4900 holes per square inch - use with #30 and #50 screens for best blue bowl recovery.
1/100 inch - our smallest screen - use for microscopic gold recovery and ultra fine gold dust and flakes.

We recommend using a combination of at least 2 sieves on the river and ideally a combination of the next 5 sizes when cleaning up. A discount is available for the set of five and all seven. Classifiers stack one on top of the other easily so you can classify your material down to the ideal size for easy and very efficient gold panning.

Special offer: SAVE MORE! Order one of our sets or all 9 classifier sizes for a reduced rate and you also pay just the single item shipping rate!

Shipping by UPS only. We sell out often as these panning sieves are in high demand so please order early. New stock arrives weekly.