With the installation of Russell Compact Sieves, Russell Finex help Nutrexpa improve the quality of one of their most prominent brands, Cola Cao

The company was initially using six rotary centrifugal sieves to screen the powder. However, due to the mechanical action used, they experienced frequent mesh breakage, allowing oversized contamination to pass through to the packaging lines. In addition, due to the sieves being enclosed, it was not possible to visually inspect the mesh without stopping production. Therefore when a mesh failure occurred, large batches needed to be re-screened, resulting in a substantial amount of time and cost being added to the production process.

In a 24/7 production environment, Nutrexpa sought to optimize its processes and remove the inefficiencies by seeking new sieving equipment. Having already worked with Russell Finex to install the Russell Compact Sieve® in other areas of the plant, Nutrexpa recognized the benefits this unit has provided them in other screening processes. Therefore, after consulting with an experienced sales engineer, the six rotary sieves were replaced with two 1200mm diameter Compact Sieves.

Situated prior to the packaging line, the Compact 1200’s are used to safety screen the powder. The powder enters the sieve through a feed inlet and is screened through the machine in a straight line, ensuring no hold-ups or dead points. Any oversized material quickly travels across the screen mesh and is ejected continuously to give maximum separation.

Another key feature of the installation was the Russell Vibrasonic Spiroscreen™. This innovative ultrasonic deblinding system eliminates blinding and blockage of mesh.

With the mesh staying clear, Nutrexpa observed a significant reduction in downtime with screening capacities improved. The Spiroscreen™ system also enabled Nutrexpa to screen their product more accurately and reduce re-screening of good product, therefore improving their bottom line.

Tags: compact sieve, sieves, sieving equipment, spiroscreen, ultrasonics, vibrasonics