CSC Scientific Blog

A blog about test equipment

CSC Scientific Blog

A Sieve Shaker's Passing From Noise To Quiet

Posted by Art Gatenby on Oct 26, 2016 2:26:45 PM

Quiet Sieve Shakers

Recently in a quiet, reflective moment, I recalled my first work with sieve shakers. Horizontal motion with tapping was the basic shaker design. The Ro-Tap® was King, and there were few alternatives. Different shakers for special applications, such as the Mary Jane and one that was hung from the ceiling, were the exception. 

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Topics: Sieve Shakers, Sonic Sifter, Particle Size Analysis, Quiet sieve shakers, RoTap, Noisy Sieving, sieving, Endecotts, vacuum sievers

Sieving - An Ancient Technique Still Widely Used

Posted by Art Gatenby on Aug 4, 2016 3:01:17 PM

We recently redesigned our E-commerce site. The redesign proceeded without a hitch, until we got to the sieves. 

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Topics: Particle Size Analysis, Sieves, Sieving Process

What's So Special About Picking A Sieve Shaker?

Posted by Art Gatenby on Jan 6, 2015 9:15:00 PM

If you take Sieve Shakers for granted, you may be surprised to know that the selection of the right shaker can have a profound effect on your sieving results.

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Topics: Sieve Shakers, Particle Size Analysis, Sieve Analysis

When is a Sieve Not a Sieve?

Posted by Amanda Ranowsky on Jul 17, 2014 5:00:00 AM

In our business, we use the word “sieve” to describe a piece of equipment that separates desired elements from unwanted material using a woven wire screen or mesh net. To others, “sieve” can mean something very different.

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Topics: ASTM, Particle Size Analysis, Sieve Calibration, Sieve Certification, Sieves, Sieving Process

How Do You Analyze Small, Micron-Sized Particles?

Posted by Art Gatenby on Jan 30, 2014 2:00:00 PM

Sieve testing, as I have stated many times, is the Cinderella of particle size analysis because it delivers more value than expected from something that’s so easy to use and relatively inexpensive. However, the problem with standard sieving techniques using wire mesh sieves is that they begin to exhibit accuracy problems in the lower micron sizes.

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Topics: Sieve Shakers, "Ask Art", Sonic Sifter, Micron-Sized Particles, Particle Size Analysis, Sieve Testing, Sieving Process

Jim, the Secret Agent, and the Machine That Changed Everything

Posted by Amanda Ranowsky on Oct 29, 2013 12:03:00 PM

Chapter One:

 

Jim’s life was dull. So, so dull. He spent his days surrounded by piles of sieves – his glamorous job was to calculate the ratio of particles left in the sieves of each stack after a sample of his company’s product was run through the stack using a sieve shaker. It was a job much like the one his cousin Hiram had, although he seemed to remember hearing that Hiram had found an easier way to do it.  

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Topics: Particle Size Analysis, Sieve Testing, Sieve Analysis

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

Accurate QC with Sieve Testing - Hiram’s Story Chapter II

Posted by Art Gatenby on Apr 9, 2013 4:24:00 PM

We are back with Hiram, the QC Supervisor in a specialty pellet plant. We pick up the story after the QC department was hit hard by the flu season.

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Topics: Particle Size Analysis, Sieve Testing, Sieves, Sieving Process, Sieve Analysis

Accurate QC with Sieve Testing - Hiram’s Story Chapter III

Posted by Art Gatenby on Apr 9, 2013 3:25:00 PM

As you may remember Hiram is the Quality Control supervisor of a  specialty pellet manufacturer. His problem is to find a way to get his sieve-testing results done with two shifts and a limited budget.

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

Sieve Calibration Is the Holy Grail !

Posted by Art Gatenby on Sep 11, 2012 1:11:00 PM

Yes Harry, there is a Santa Clause. Or, more specifically, there really is a Holy Grail for ensuring consistent particle size analysis. 

If you’ve been following along, you know it was proven by Pequeño and his family of 150 micron particles who tried to bust our friend Harry’s quality control by attempting to slip through the mesh in Harry’s test sieves and defeat sieve certification.

(If you missed this drama, check out previous posts in the Holy Grail series.)

Now that we have indeed confirmed that, yes, sieve calibration really is the Holy Grail that sieve testers have been looking for, let’s get to work and dive a little deeper. Let’s examine some methods of sieve calibration.

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Topics: Calibration, Particle Size Analysis, Sieve Calibration, Sieve Testing, Sieves, Sieving Process

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