CSC Scientific Blog

A blog about test equipment

What is The Function of a Sieve Shaker?

Posted by Art Gatenby on Oct 17, 2013 4:56:00 PM

 

Visitors to our web pages often arrive with the question, “What is the Function of a Sieve Shaker?

The simple answer is “to expose the particles in a sample to all the openings in each sieve in a stack”. A sieve stack is the result of fitting each sieve to be used in a given particle size analysis into the one above. The sieve with the largest mesh holes is at the top with each subsequent sieve of a tighter mesh size than the one above it.

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Topics: Sieve Shakers, "Ask Art", Sonic Sifter, Agglomeration, Particle Size Analysis, Sieve Testing, Sieves, Sieving Process, Sieve Analysis, Quiet sieve shakers, sieve shaker

Advances In Sieves: Sieves Able to Strip Molecules From Fluids

Posted by Art Gatenby on Nov 19, 2012 2:32:00 PM

Sieves make understanding the world around us not just possible, but also easier.

And with the advancement of sieves, not only are we able to separate dry particle, but also sift molecules from fluid as well. With molecular sieves developed by MIT, we can now strip a molecule’s individual parts gives us a better understanding of how things come together and work, such as diseases or even DNA. 

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Topics: Sieve Calibration, Sieve Certification, Sieve Testing, Sieves, Sieving Process

Who's Concerned About Sieve Shakers?

Posted by Art Gatenby on Mar 11, 2011 12:33:00 PM


The primary purpose of a sieve shaker is to provide motion to a sample in a test sieve.

An effective sieve shaker creates a motion that presents all the particles to all of the sieve openings and assists particles in passing through. This requires both rotary and vertical motion.

This process seems simple enough, but let's not be taken in.

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Topics: Sieve Shakers, Particle Size Analysis, Sieve Testing, Sieves

Is Particle-Size Analysis Boring? Trivial? Amazing? Exciting? Vital?

Posted by Art Gatenby on Nov 2, 2010 3:57:00 PM

When I tell people at cocktail parties that we specialize in Particle-Size Analysis. I usually get a polite response of ------ “OH !!,”   which translates to “So who cares?”

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Topics: Sonic Sifter, Particle Size Analysis, Sieves, Sieving Process

Certify Sieves or Calibrate Sieves --- Should You Do It?

Posted by Art Gatenby on Jun 30, 2010 4:57:00 PM

The relative value of a sieve certification process vs a sieve calibration has perplexed me for a long time.

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Topics: Sieve Shakers, Mid-Point Sieves, Particle Size Analysis, Sieve Calibration, Sieve Testing, Sieves

Static Electricity and Sieves: No Problem -- Maybe

Posted by Art Gatenby on Apr 21, 2010 2:02:00 PM

I'll bet that most of you have experienced the shock of walking on a thick wool rug on a dry winter's day and getting zapped out of your reverie when reaching for the metal door knob.


The same process of static electricity generation can play havoc with your sieving process.

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Topics: Sieve Blinding, Agglomeration, Sieve Testing, Sieves

Re-Certify Mid-Point Sieves? When and How?

Posted by Art Gatenby on Jan 29, 2010 12:24:00 PM

I recently had a long conversation with the person [we'll call him Bill] responsible for setting up the quality procedures for very tight specifications in a new process -- part of which was developing procedures for checking the ongoing tolerances of production sieves.
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Topics: Mid-Point Sieves, Sieve Calibration, Sieve Testing, Sieves

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