Two main types of sieves are used for different powder processing requirements: centrifugal sifters and vibrating sieves.
Centrifugal sifters (also known as rotary sieves) utilise centrifugal force to move particles through a cylindrical sieve. Paddles cause the material to rotate, enabling a gentle screening process with a high throughput rate. An additional advantage is the deagglomeration of materials, which is particularly important for fine powders. These screens are ideal for applications where foreign bodies need to be removed and high product quality needs to be guaranteed at the same time.
Vibrating sieves and screeners, on the other hand, work with mechanical vibrations that allow smaller particles to pass through a sieve or grid. They are particularly efficient in the precise classification of fine powders and the removal of oversized particles. Their compact design and easy maintenance make them a popular solution in many industrial sectors.
Gericke Centrifugal Sifter GS
The Gericke centrifugal sifter has proven itself particularly in the food sector. It combines high performance with reliable removal of foreign bodies and thus makes a significant contribution to product safety. Before the turn of the millennium, product recalls due to contamination were not uncommon. Today, thanks to modern screening technology, a high level of quality and consistency is standard.
Gericke has been developing and producing industrial centrifugal sieves for over 50 years. Through extensive testing and customer trials, the geometry of the perforated plate screens has been optimised to achieve an ideal balance between throughput and oversize separation. The patented design minimises wear, reduces changeover times and spare parts requirements and ensures consistent screening results. The Gericke team supports customers worldwide in improving their powder handling processes – with innovation, experience and a clear focus on efficiency and quality.
