Root crop screw destoner
Efficiently remove stones from root crops with this screw destoner, ensuring clean produce while minimizing wear on downstream equipment.

Separates Stones and Heavy Debris from Root Vegetables
The Screw Destoner SO from Sormac is designed for the precise separation of stones and debris from root vegetables, such as potatoes and carrots. It features a vertically mounted transport screw within a water-filled hopper, using rotational motion to effectively separate heavy particles from produce. This system reduces wear on downstream equipment and is vital for potato and carrot processing lines producing items like French fries and carrot sticks. With a capacity of up to 5,000 kg per hour, it operates continuously and is ideal for high-speed processing environments, minimizing water consumption at approximately 100 liters per 1,000 kg processed. Fabricated for durability and ease of maintenance, its construction allows for straightforward cleaning. Options like anti-splash feed-in systems and specialized filling mechanisms enhance its integration into existing lines, offering tailored solutions for varied production needs.
Benefits
- Enhances processing efficiency by minimizing stone-related equipment wear, reducing maintenance costs.
- Increases throughput up to 5,000 kg per hour with continuous operation.
- Lowers water usage, conserving resources and lowering operational expenses.
- Preserves product integrity, ensuring undamaged root vegetables for downstream processing.
- Flexibly integrates with existing lines, accommodating specific processing requirements.
- Applications
- Carrots,Root vegetables,Agricultural products,Potatoes
- End products
- Canned potatoes,Potato chips,Carrot sticks,Frozen root vegetable mixes,French fries
- Steps before
- Harvesting,Initial sorting
- Steps after
- Washing,Peeling,Cutting,Packing
- Input ingredients
- potatoes,carrots,root crops,polluted products
- Output ingredients
- clean product,destoned product,products without stones
- Market info
- Sormac is known for its expertise in manufacturing high-quality vegetable processing equipment, particularly peeling, washing, and slicing machines, with a strong reputation for innovation, reliability, and customer-focused solutions in the food processing industry.
- Capacity
- Max. 5,000 kg/hr (11,000 lbs/hr)
- Diameter of Processed Product
- Max. 200 mm
- Water Consumption
- Approx. 100 l/1,000 kg (12 gallons/1,000 lbs)
- Working mechanism
- Screw-driven destoning
- Integrated steps
- Separation of stones and root crops
- Water usage
- Low water consumption (approx. 100 l per 1,000 kg / 12 gallons per 1,000 lbs)
- Batch vs. continuous operation
- Continuous
- Automation level
- Manual operation with optional electrical automation
- Cleaning method
- Ease of access for cleaning
- Material transport
- Vertical transport screw
- Control features
- Optional electrically operated cranes for filling
- Abrasion resistance
- Yes
- Cleanability
- Easy to clean
- Corrosive resistance
- Highly resistant
- Density/particle size
- Suitable for root crops
- Product Types
- Root crops like potatoes and carrots
- Footprint
- Compact design
- Hopper shape
- Rectangular or round with cone
- Transport screw
- Vertical
- Discharge method
- Transport screw
- Material handling
- Gentle auger action
- Reception hopper type
- Rectangular / Round with cone
- Feed-in method
- Standard / With anti-splash / Special feed-in for carrots
- Filling method
- Electrically operated cranes