NUT GRANULES CLASSIFICATION

In nut processing, granules classification separates hazelnut, pistachio, almond and other nut granules into precise size fractions, removing oversize and fines while preserving the integrity of the usable product. A stable and well controlled classification step keeps recipes within specification, improves visual appearance and mouthfeel of the final product, and limits the amount of rework and waste. By maintaining a narrow particle size distribution, producers can support a premium positioning of their finished products in terms of both quality and consistency.

Vibrating sieving is particularly suitable for this process because it combines accurate separation with gentle handling of fragile products. The type of vibration, mesh size selection and machine configuration must be adapted to the specific nut variety, fat content, moisture level and target granulometry. Installation point, available headroom, required throughput and hygiene requirements also play an important role when defining the most appropriate solution for each plant layout.

For nut granules classification, MLT Cuccolini recommends the VPB/M series, a long standing reference solution developed together with major OEMs in the confectionery and nut processing sectors. VPB/M vibrating sieves provide calibrated vibration that keeps the product moving efficiently over the mesh while avoiding excessive mechanical stress on the granules. This helps maintain the internal structure of the product and prevents squeezing out oils and fats that would otherwise affect both product quality and machine cleanliness.

The VPB/M series can be supplied in multi deck configuration to obtain several size fractions in one pass, or as single deck units installed in cascade. Multi deck execution is ideal when a compact footprint is needed and classification into multiple cuts must be performed in a single installation point. Single deck machines in cascade are preferred when the operator needs direct visual control of each fraction and the possibility to intervene quickly if a deviation occurs, for example to adjust upstream settings or to temporarily stop one fraction flow for quality checks. In both cases, the design aims to provide a clear separation between fractions and easy access to each outlet.

A key strength of the VPB/M solution for nut granules is its gentle yet effective vibration profile, specifically tuned for delicate food products with significant fat content. By avoiding excessive compression and rubbing of the granules on the mesh, the sieve helps preserve particle shape, limit fines formation and reduce the risk of oil exudation that could lead to sticking, mesh blinding and hygiene issues. Stainless steel construction, appropriate surface finishing and a layout conceived for cleaning support high hygienic standards and facilitate routine maintenance.

Thanks to more than 30 years of experience with VPB/M in nut granules lines, MLT Cuccolini can support both end users and OEMs in selecting the right mesh size range, deck configuration and installation point for each specific application. From simple single line upgrades to complete new plants, the combination of proven mechanical design and process know‑how helps achieve reliable throughput, stable classification performance and easier day to day operation.

By choosing MLT Cuccolini VPB/M vibrating sieves for nut granules classification, producers benefit from higher and more consistent product quality, with granules that keep their shape, texture and functional properties throughout the process. At the same time, the gentle yet efficient separation protects downstream equipment, reduces unplanned downtime linked to fouling and deposits, and simplifies cleaning operations.

The flexibility of multi deck or cascade single deck configurations, combined with long term experience in nut processing, allows MLT Cuccolini to adapt each solution to the required throughput, available space and specific process constraints of both existing and new plants. This results in a robust, hygienic and value adding classification step that supports the market positioning of the end product.

If you are designing or upgrading a nut granules classification line, MLT Cuccolini is ready to analyse your process and propose the most suitable VPB/M configuration for your needs. Contact us to discuss your application and define the optimal combination of mesh sizes, installation points and machine features for your plant.