PLEASE NOTE- A COUPLE OF MESH SIZES ARE CURRENTLY ON BACK ORDER OR LOW IN STOCK. PLEASE INQUIRE ON AVAILABILITY BEFORE ORDERING.
Classifier Sieves designed to fit on top of a 5 gallon bucket. Available in 9 different mesh sizes or buy the set of sieves and save.
LIMITED TIME OFFER! GET ALL 9 CLASSIFIER SIEVE SIZES FOR JUST $134. That's just $14.89 each.Choose discounted set option from drop down menu above.
ALL MEASUREMENTS ARE APPROXIMATE - THESE ARE INTENDED TO BE USED AS MINING GRAVEL CLASSIFIERS, NOT LABROATORY GRADE SIEVES - SOME VARIANCES IN MESH SIZE IS TO BE EXPECTED.
• Sieve Size: 11" Dia Bottom
• Top Diameter: 13-1/4"
• 304 Stainless Steel Wire
• Wire Thickness - 0.1mm
Classifier Mesh Size Wire Thickness
1/2" 1.4mm OPENING
Proper classification of material by size is the key to more efficient gold separation. This is true for roughing out your material, all the way to the final step of fine gold separation. Using a sieve works for panning, sluicing and high banking equally well.
Many of our customers use the 30, 50, and 100 mesh sieve sizes with their Blue Bowl concentrators. A # 8 mesh sieve is required for using a Gold Cube Concentrator.
We are often asked: How many sieve sizes do I really need?
Well, it depends on your material and how comfortable you are with your recovery equipment. If you are going to prospect for gold seriously and as more than an occasional hobby, you will want to have several different mesh sizes.
For a typical stream sluice you would usually want to use at least a (# 4) 1/4 inch sieve unless you have large nuggets. No sense dumping worthless large rocks and gravel into a sluice if there is no gold that big. Go smaller if you have only fine gold where you are working. A good compromise is often a # 8 mesh sieve. Not too big and not too small in case you have pickers. Always give at least a quick glance at your water gravel and rock - you never know when a large nugget might pop up! Panning out large gravel is pretty easy and fast too. Fine flour gold is another story.
Fine gold can be really tough to pan out. Most new gold panners begin to struggle on fine gold smaller than 20 mesh (window screen). Make it much easier by panning your paydirt concentrates in batches. Pan anything bigger than 20 mesh (window screen size) separately, then pan the smaller material that fell through your sieve. Repeat this for the other sieve sizes. There is a big difference between a 100 mesh screen and a 20 mesh screen. The material may look similar to the naked eye but it behaves quite differently in your pan. Reducing the material to the size of the gold you are trying to recover will make your panning a lot easier.
Separating and processing your gold concentrates by size with a classifier sieve makes gold recovery much more efficient and less laborious.
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