ANIMAL BY-PRODUCT PROCESSING

Modern rendering transforms animal co-products that are not intended for human consumption into valuable raw materials such as fats, protein meals, and functional fractions used in feed formulations. These streams must be processed and monitored carefully to minimise biological risks and comply with international and local legislation governing animal by-products and feed safety. Vibrating sieving contributes to these objectives by removing foreign bodies, controlling particle size, and stabilising product properties before downstream use.

Liquid streams obtained during rendering, such as bovine blood derivatives, require dedicated filtration to ensure both processability and product consistency. In this context, MLT Cuccolini VLB and VLM vibrating sieves are used to filter blood-based liquids, improving fluidity and separating undesired particles while preserving valuable functional components such as fibrin-rich fractions. Their controlled vibration allows continuous operation with stable throughput, helping maintain gentle handling and reducing the risk of foaming or blockages.

Typical installation points for VLB and VLM units include lines where blood or blood-derived liquids are collected, pre-treated, or directed to further concentration and fractionation steps. By removing solid contaminants and agglomerates, these sieves help protect pumps, heat exchangers, and downstream separation equipment, while contributing to a more homogeneous and manageable product stream. Stainless steel execution and ease of cleaning support hygiene management in a sensitive processing environment.

On the solid side, rendering produces a variety of ground materials that must be classified according to particle size and composition before being processed into meals or other feed ingredients. MLT Cuccolini VPM vibrating sieves are employed to perform dry separation after grinding, helping differentiate between fractions with different particle size ranges or material characteristics. This classification supports both internal process optimisation and the production of consistent feed ingredients tailored to specific formulations.

VPM units are typically installed downstream of grinders or presses, in lines conveying mixed solid material. Their calibrated vibration and adjustable mesh configurations enable efficient separation of oversize fractions and fine product, while maintaining good flowability and limiting dust generation. This contributes to stable operation of storage, dosing, and mixing systems, as well as to the reproducibility of the final nutritional profiles in feed and petfood.

Across both liquid and solid applications, the use of appropriate screening equipment supports implementation of preventive controls and hazard management plans required by feed safety standards and quality systems. Robust construction, easy inspection, and compatibility with CIP or standard cleaning procedures facilitate regular maintenance and sanitation, helping rendering plants align with regulatory expectations and internal corporate policies.

Integrating MLT Cuccolini vibrating sieves into rendering applications supports safer and more consistent processing of animal by-product streams destined for feed and petfood. Reliable filtration and classification help protect downstream equipment, stabilise process conditions, and improve the quality and usability of derived ingredients.

The flexibility of the VLB/VLM and VPM ranges allows adaptation to different plant layouts, capacities, and product types, while the focus on hygiene and gentle handling is aligned with current industry expectations for responsible, resource-efficient rendering.

Contact MLT Cuccolini to discuss your rendering process and identify the most suitable vibrating sieving solutions for both liquid and solid streams in your specific installation.