Receiving/Pre-cleaning
Through the adapted use of Ag-Web belts from the tomato processing industry, Grossi Fabrication systems pre-clean walnuts ten times more efficiently than traditional drum pre-cleaning systems and include de-stickers and negative air aspiration.
Walnut Hulling
In addition to using Ag-Web belts during the hulling process to provide additional cleaning, Grossi Fabrication has developed a radial huller that is superior to other radial brush hullers available. Our radial hullers, available in widths from 24 to 60 inches, eliminate the pinch point problems common to traditional hullers and out-perform them on every level. Grossi Fabrication also offers the largest rock tank in the industry, with a single tank capable of processing at a rate of 40 tons per hour. During the pre-cleaning and washing process we have developed a special feature that forces the nuts to roll back on themselves under the wash nozzles thus creating agitation and friction to remove more hull and/or mud remnants. Hulling systems also include:
• Aspirators and picking tables custom-sized to suit
• One level hulling systems for easy access and maintenance
Walnut Drying
Grossi Fabrication designs complete drying systems to reduce moisture content efficiently, this allows you to optimize your shippable product weight. The drying systems also bring in recirculated air at just the right stage of the process that can lead to significant fuel costs. Systems consider and customize all the factors in a drying system including:
• Air valves
• Burner size
• Static pressure
• Bin size and doors, etc
In-Shell Walnuts
In-shell processing includes sizing decks custom built for your facility as well as aspirators and electronic sorters that can handle 10,000 to 40,000 pounds of product per hour.
Shelling Walnuts
Pre-sizing is the key to efficient shelling. The Grossi Fabrication system design uses pre-sizers to align and accurately measure walnuts before they enter our custom cone crackers.
Electronic Sorting
Custom built electronic sorting equipment is designed to minimize handling and damage to the product. We use Z-style elevators by Anex Manufacturing to reduce impact and the need for custom-designed bin dumpers. Sorting process includes:
• Vibratory conveyance systems
• Stainless steel contact points
• and Dust control systems
Hand Sorting
Grossi hand-sorting tables are made with quick-release endless belts for minimal cleaning and easy maintenance. Each system includes vibratory conveyance and negative air systems for meal and shell removal.
Packaging
We incorporate ActionPac scale systems designed to each customer’s needs for maximum packaging efficiency.