A sieve analysis (or gradation test) is a practice or procedure used (commonly used in civil engineering) to assess the particle size distribution (also called gradation) of a granular material.
The size distribution is often of critical importance to the way the material performs in use. A sieve analysis can be performed on any type of non-organic or organic granular materials including sands, crushed rock, clays, granite, feldspars, coal, soil, a wide range of manufactured powders, grain and seeds, down to a minimum size depending on the exact method. Being such a simple technique of particle sizing, it is probably the most common.
We manufacture reliable electroformed sieves that determine particle size for our client’s most precision sensitive areas of the powder industry, which include diamond superabrasives, nuclear fuels, alumina, ceramic, metal, and even lunar powder materials. Our ultra precision sieves can be produced:

With an opening size from three microns to 500 microns, at single micron increments
With tolerances of as low as 0.5 microns
Choices of opening shapes; square, round, slotted, hexagonal
Standard inch and metric ring diameters
Certified and shipped with a measurement histogram

A sieve analysis (or gradation test) is a practice or procedure used (commonly used in civil engineering) to assess the particle size distribution (also called gradation) of a granular material.
The size distribution is often of critical importance to the way the material performs in use. A sieve analysis can be performed on any type of non-organic or organic granular materials including sands, crushed rock, clays, granite, feldspars, coal, soil, a wide range of manufactured powders, grain and seeds, down to a minimum size depending on the exact method. Being such a simple technique of particle sizing, it is probably the most common.
We manufacture reliable electroformed sieves that determine particle size for our client’s most precision sensitive areas of the powder industry, which include diamond superabrasives, nuclear fuels, alumina, ceramic, metal, and even lunar powder materials. Our ultra precision sieves can be produced:

With an opening size from three microns to 500 microns, at single micron increments
With tolerances of as low as 0.5 microns
Choices of opening shapes; square, round, slotted, hexagonal
Standard inch and metric ring diameters
Certified and shipped with a measurement histogram