Machine: CORAVEL – Quality control of nut kernels

In combination with four sorting functions (air sifting, screening, ultrasound detection and optical quality control) we maintain, with this machine, a unique position on the market. In addition to the customary physical procedures such as air-sifting and screening, unwanted components are also identified by their surface properties with ultrasound and optical inspection. From raw products such as nuts (hazelnuts, almonds, pistachios, cashews, peanuts, walnuts, macadamias) apricot kernels or chocolate-nibs a wide variety of foreign bodies are removed in this way. Even individual nuts affected by rot or by mould are identified and rejected.

The CORAVEL machines are for many years in use at some of the world’s largest confectionery producers and food processors.

Further Information:

 Product PDF
– Flyer Helms Technologie


– Gesellschaft für Fertigungstechnik und Entwicklung e.V. Schmalkalden: Optische-Inspektionssysteme in der Lebensmittelindustrie
– Messen und Prüfen: Optische inspektionssysteme für Lebensmittel
– Ilmenau University of Technology /GFE: Color and spectral image processing of measurement and recognition of complex objects
– Lebensmittelindustrie: Nussverarbeitung für hohe Ansprüche
– Aromes Ingredients Additifs: Fruits secs ou séchés
– Aromes Ingredients Additifs: Coravel Nouveau procédé de tri de fruits secs
– Machinery & Automation: Control is the key
– FAZ: Die Guten ins Töpfchen
– Process: Micro-ondes, ultrasons, vision: un fort potentiel
– Lebensmitteltechnik: Fremdkörper in Süßwaren
– Lebensmitteltechnik: Fremdkörper raus!
– Messen und Prüfen: Der Klang der Haselnüsse
– Process: Helms écarte les coquilles d’unicoque
– Süßwarenproduktion: Neue Sortier- und Verlesetechnik für Nüsse
– The Clipper: Ultrasound Grading and Sorting Technology
– Zucker- und Süßwaren Wirtschaft: Ultraschall selektiert ganz fein