How does a screw de-stoner work?

A screw de-stoner typically uses a rotating screw mechanism within a trough to convey product. Denser materials like stones settle at the bottom and are separated from the lighter product stream, often with the aid of water or air.

What types of products can this de-stoner process?

This type of de-stoner is commonly used for a wide range of granular or particulate food products, including fruits, vegetables, grains, pulses, and nuts, where density differences allow for effective separation of foreign objects.

What maintenance is typically required for a screw de-stoner?

Routine maintenance typically involves cleaning to maintain hygiene, inspection of the screw and drive system for wear, and checking seals and bearings. Drive belt replacement, as noted for this unit, is also a common maintenance task.

Is this unit suitable for wet or dry processing?

Screw de-stoners can be designed for both wet and dry applications. Units with stainless steel construction are generally well-suited for wet processing environments, which often aid in the separation process.

What power supply is typically needed for a de-stoner of this size?

For industrial-scale de-stoners, a three-phase electrical supply is typically required. Buyers should confirm specific voltage and amperage requirements with the seller.

Used Stainless Steel De-stoner One - Sorting & Grading Equipment, photo 1

Used Stainless Steel De-stoner One - Sorting & Grading Equipment, photo 2

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Used Stainless Steel De-stoner One - Sorting & Grading Equipment

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Stainless Steel De-stoner One

Name: Stainless Steel De-stoner One
Brand: Stainless Steel De-stoner One
SKU: stainless-steel-de-stoner-one-465d8a02
Availability: InStock

Price: Contact seller for price

000492.

Stainless Steel De-stoner One – Heavy-Duty Screw De-stoning Solution.

Built for robust performance in demanding processing environments, the Stainless Steel De-stoner One is a powerful screw-type de-stoner engineered for reliable, high-volume operation.

Its durable stainless steel construction ensures long-lasting use while maintaining strict hygiene standards—ideal for industrial food processing applications.

Designed with a large infeed clearance of 1300 mm x 200 mm, this machine easily handles substantial product flow, feeding into a screw mechanism approximately 550 mm in diameter for effective separation.

The screw-driven system delivers consistent de-stoning performance while minimizing product damage and waste.

With overall dimensions of 1750 mm x 1800 mm x 3700 mm, the Stainless Steel De-stoner One offers a substantial processing capacity within a solid, industrial footprint—perfect for integration into existing production lines.

Important Note: This unit is currently missing its drive belt, and will require replacement or fitting before operation.

Key Features:

Heavy-duty screw de-stoning system for efficient separation.
Food-grade stainless steel build for durability and hygiene.
Generous infeed clearance (1300 mm x 200 mm) for high throughput.
Large ~550 mm screw diameter for consistent processing.
Industrial-scale footprint for serious production environments.

If you’re looking for a reliable, high-capacity de-stoning unit with solid engineering at its core, the Stainless Steel De-stoner One is a practical and powerful choice—ready to be restored to full working condition.

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Norfolk, United Kingdom

5,809 km away

Machinery Masters View

Typical context for this category of equipment. Always confirm specifics with the seller.

Used in fruit and vegetable processing to remove stones, pits, and other dense foreign objects from produce.
Applied in grain and pulse processing for separating heavier impurities like stones, metal, and glass from the main product stream.
Utilised in nut processing to ensure the removal of shell fragments or small stones before further processing.
Integrated into seafood processing lines to eliminate small stones or shell fragments from various marine products.
Employed in confectionery production to clean raw ingredients like dried fruits or nuts before inclusion in final products.

Construction material: Typically food-grade stainless steel for hygiene and corrosion resistance.
Throughput capacity: For this class of equipment, high-volume processing is common, suitable for industrial lines.
Infeed dimensions: Units of this type commonly feature generous infeed clearances to accommodate substantial product flow.
Screw diameter: A large screw diameter, such as approximately 550 mm, is typical for effective and consistent separation.
Footprint: Industrial-scale dimensions are common, requiring a solid space for integration into production environments.
Separation method: Units of this type commonly use a screw-driven system for density-based separation.

A screw de-stoner typically uses a rotating screw mechanism within a trough to convey product. Denser materials like stones settle at the bottom and are separated from the lighter product stream, often with the aid of water or air.

Sorting and grading equipment is valued for improving product consistency and processing efficiency. Buyers typically seek machines in good mechanical condition with minimal wear on critical components like belts, motors and calibration systems. Common strengths include reliable performance when properly maintained, cost savings versus new equipment, and compatibility with existing production lines. Industry sentiment favours models from established manufacturers known for durability. Buyers should inspect electrical systems thoroughly and verify spare parts availability before purchasing used units.

General overview for this equipment type

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.