Oilseed Destoner Machine

Oilseed Destoner Machine: The wind and vibration are used to screen and remove stones and dirt from the grains.

Email:guanceoilmachinery@gmail.com

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ModelScreen Width (cm)Capacity (wheat) (t/h)Suction Volume (m³/h)Weight (kg)Dimensions (L×W×H mm)
ODM43431-1.530002151270×700×1600
ODM50502-440002301420×780×1800
ODM60603-545002801450×876×1800
ODM80805-760003401450×1046×1800
ODM1001007-980004001500×1246×1900
ODM1251259-11102005001470×1496×1900
ODM12512515-18120006501649×1714×2083
ODM15015011-14120006001580×1746×1900

Oilseed destoner machine are core equipment in the pre-processing of oils. Through the combined action of a vibrating screen and airflow, they separate impurities such as stones and mud from oilseeds based on differences in specific gravity.

The process encompasses four stages: feeding and homogenizing, layered screening, impurity separation, and clean seed discharge.

It effectively protects subsequent oil pressing or solvent extraction equipment, improves oil yield and product purity, and is a crucial step in ensuring the continuity and quality of oilseed processing.

Why Use a Destoner in Oilseed Processing?

1. Protect Downstream Equipment: Oilseeds mixed with stones or dense debris can cause excessive wear or damage to oil‑pressing machines, flaking mills, and other downstream gear.

2. Improve Oil Quality & Yield: Heavy impurities not only reduce the effective seed mass but can also contaminate oil or meal.

3. Increase Safety: Many destoners operate under negative pressure or with enclosed air‑flow systems, limiting dust and improving factory hygiene.

Working Principle: How the Oilseed Destoner Machine Works

1. Feeding & Vibration: Oilseeds (plus any stones) enter the destoner hopper and are distributed onto a vibrating deck (sieve) composed of two or more screen layers.

2. Stratification: As the deck vibrates, materials stratify: lighter particles (oilseeds) tend to float, while heavier ones (stones) sink.

3. Airflow Separation 

– In a suction-type destoner, a negative airflow moves through the bed, lifting lighter seeds upward, while heavier stones drop to the bottom and are discharged.

– In a pressure-type destoner, pressurized air from below pushes upward; lighter material rises, and heavy impurities remain on or fall through the deck.

4. Discharge 

– Cleaned seeds exit via the designated “light‑fraction” outlet. 

– Stones and other dense particles are removed via a dedicated heavier discharge channel.

Key Design Features & Technical Specifications

Here are important technical points and typical design features for an oilseed destoner:

FeatureDescription
Dual vibratorsProvide balanced, stable oscillation of the sieve, improving separation efficiency.
Adjustable air‑gateA control mechanism (e.g., a calibrated damper) allows the operator to precisely regulate airflow, which is critical to matching different seed densities.
Suction or blower systemDepending on model, machines use suction (negative pressure) or blower (positive pressure) as their air source.
Inspection windowsTransparent or removable windows help operators monitor the internal flow and material behavior.
Screen inclinationThe slope of the vibrating deck can be adjusted (often between ~5°–9° or more) to accommodate different oilseeds and improve stratification.
Low‑dust designWell-sealed chassis, air‑return systems, and aspiration may be included to prevent dust leakage.
Robust frame & springsRubber springs or other vibrating supports help isolate vibrations and extend longevity.

Contact Guance Machinery for a free consultation and equipment quote within 24 h.

Oilseed Destoner Machine Advantages

1. Oilseed Destoner Machine: The is used to efficiently remove stones and impurities from oilseeds, ensuring cleaner raw materials. 

2. Improved Oil Quality: By removing foreign materials, it enhances oil quality, reducing contamination and improving the purity of the final product.

3. Increased Processing Efficiency: The device increases processing efficiency by minimizing damage to equipment and improving the consistency of the oil extraction process.

Q1: What types of oilseeds can be processed with this equipment?

A: It is suitable for various oilseeds solutions, including soybeans, sunflower seeds, and canola, among others.

A: Yes, it is designed for easy maintenance with minimal downtime, requiring simple cleaning and part replacements when necessary.

A: While ideal for semi-continuous oil refinery plant, it can also be used in smaller operations, depending on the processing capacity required.

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