Downtime of your sieving installation is something you want to prevent as much as possible. That’s why a good quality sieve ball is an absolute must. Where rubber sieve balls fail over time, our Karolee® polyurethane sieve balls continuously stay active in the sieve cleaning process with a very long service life. These sieve balls have a lasting elasticity of 70% and are without adhesion or absorption of the processed product and are bacteriological safe.