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Sieve Analysis Methods

A sieve analysis, also known as a test sieve or gradation test, measures the particle size distribution of a granular material. There are several types of sieves for the analysis, including but not limited to woven wire cloth sieves and American standard sieves.

When it comes to sieve analysis methods, there are many options to consider. The type of material you work with will determine the way you will perform the analysis. Below are the most standard sieve analysis methods:

Throw-action - Through this method a throwing motion acts on the sample. You overlay the vertical throwing motion with a slight circular motion. This action will result in a distribution of the sample amount over the whole sieving surface.

Horizontal - This method requires a horizontal sieve shaker. The sieve shaker moves the sieve stack in horizontal circles in a plane.

Tapping - In this method a horizontal circular motion overlies a vertical movement. A tapping impulse creates this motion.

Wet - While the majority of sieve analyses are performed dry, there are some conducted wet. When dealing with a suspension that cannot be dried or a very fine powder that tends to agglomerate, use a wet sieving application. The set up for wet sieving is the same as dry sieving.

Air Circular Jet - Use an air circular jet method when working with fine powders that cannot be separated by vibrational sieving.