Quality often comes at a cost to efficiency and vice versa. What if you didn’t have to compromise and could improve both?
Gericke centrifugal sifters are used throughout the world to remove contaminants, break down agglomerates, and control the product particle size that goes into your process, increasing efficiency and quality.
How is all this possible?
Sieving and size control
A centrifugal sifter is made up of a cylindrical screen mesh with a specific aperture of holes. Only product with a particle size smaller than the screen aperture will be able to go through. Any larger product particles will instead move along to the end and be separated from the good product.
This means that contaminants larger than the mesh aperture, such as: string, paper, plastic and other foreign bodies will not go through either. It’s an excellent solution for non-magnetic contaminants. And with holes that can be smaller than a millimetre, there is not much else that can pass through.
Additionally, the process can use to remove fine particles from granular or larger product streams, if that is what your process is required to achieve.
A consistent particle size is an important factor especially when it comes to chemical reactions, catalysts, and more.
Light deagglomeration
Furthermore, the rotational speed of the sifter combined with infeed screw and paddle arrangement creates a very dynamic environment inside the sieve chamber that moves the powder around and helps break up any loose agglomerates. This means that lumps of good product that would normally be separated out as they can’t pass through the screen, are broken down into small fines that can.
This way product wastage is minimised, and efficiency is improved. Plus, you won’t have to worry about lumps in your product that could affect the quality. As a result, you might even be able to reduce your reaction temperatures, or the amount of product required in a reaction.
A general rule to keep in mind is that if any of your processes would benefit from a more controlled particle size, then a centrifugal sifter is exactly the machine you need.
Application example
There are various industries that can benefit. One that can benefit significantly is the Chemical industry. For example, let’s take powdered paint; typically, small powder fines generally adhere better to product due to stronger intermolecular forces and that means less is required to achieve a complete coating.
A sifter can help by separating the fine powder, break down agglomerates, and be integrated with Gericke equipment to recirculate oversized lumps to be conditioned and reused.
Furthermore, when it comes to mixing chemicals together, it is much easier to achieve a balanced mix with a consistent particle sizes. Plus, any potential roots, fibres or foreign bodies that sneak into your suppliers’ bags should not get through the screen. A win for quality and efficiency.
Gericke Centrifugal Sifters
Gericke has been in a leader in powder processing for over 125 years now. Our centrifugal sifters have been tried and tested by leaders in the chemical and other industries for decades. They are a time-proven solution with a Swiss reliability and effectiveness.
To find your nearest Gericke office or call 0161 344 1140 to speak with our experts about how you can improve your powder handling processes, click here.