Which oilseeds can this seed dehulling machine process?

The machine is built to dehull peanut, sunflower, cottonseed, hemp seed, and other specialty oilseeds. By cracking the shell and separating it from the kernel before pressing, it suits most hard- and soft-shelled oilseeds. Tell us your specific seed and we will configure the dehulling setup accordingly.

Why dehull oilseeds before oil extraction?

Removing hulls reduces non-oil-bearing material entering the extraction process, so less fiber and impurities reach the press. This yields cleaner crude oil and fewer abrasive shell fragments, which reduces wear on downstream pressing and extraction equipment, improving both oil quality and machine service life.

How does the seed dehulling process work?

Raw seeds first undergo mechanical cracking to break the shell. The shells are then separated from kernels using airflow and screening. Cleaned kernels are collected for the next stage, oil pressing. This sequence keeps non-oil hull material out of the extraction line for cleaner, higher-quality crude oil.

What capacity options are available for this dehulling machine?

The line offers several throughput tiers, from roughly 1-2 tons per hour up to 5-10 tons per hour depending on model. The dedicated peanut sheller handles about 300-1,000 kg per hour. Share your required tons-per-day target and we will match the model to your plant scale.

Are you an experienced manufacturer of seed dehulling equipment?

Yes. We have manufactured oil-processing equipment since 2009, with more than 500 plants delivered and exports to over 80 countries. This track record across diverse oilseeds and plant scales means your dehulling machine is backed by proven engineering and international project experience.

Seed Dehulling Machine

Seed Dehulling
Machine

Name: Seed Dehulling Machine
Brand: SinoOil Machinery

Separate hulls and shells from oil-bearing seeds before extraction —
improving oil yield, reducing fiber content and enhancing final oil quality.

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Higher Oil Yield

Lower Processing Cost

Improved Oil Quality

Better Pressing

Before Extraction

Why Dehulling Matters

Removing hulls before oil extraction reduces non-oil-bearing material, protects downstream equipment and delivers cleaner crude oil with higher extraction efficiency.

Increase Oil Yield

Removing hulls reduces non-oil-bearing material entering the extraction process, allowing more oil to be recovered from each batch.

Improve Oil Quality

Less fiber and impurities result in cleaner crude oil with better color, aroma and downstream refining performance.

Reduce Equipment Wear

Fewer abrasive shell fragments reduce wear on oil presses, filters and other downstream processing equipment.

Improve Processing Efficiency

Dehulled seeds provide more stable oil extraction performance with consistent throughput and lower energy consumption.

Seed dehulling machine separating hulls from oil-bearing kernels

How It Works

How the Dehulling Process Works

The machine uses mechanical cracking combined with airflow and screening to separate shells from kernels efficiently and with minimal kernel damage.

Raw SeedsMaterial intake from cleaning or storage

Seed CrackingSeeds mechanically cracked to loosen shells

Shell SeparationHulls and kernels separated by airflow and screening

Kernel CollectionClean kernels collected for roasting or pressing

Oil PressingDehulled seeds ready for extraction

Seed dehulling process — cracking, separation and kernel collection

Key Advantages

Key Features

Engineered for effective shell removal with minimal kernel damage in continuous industrial production.

High Dehulling Efficiency

Designed for effective shell removal across peanut, sunflower and cottonseed varieties.

Low Kernel Damage

Maintains product quality during processing to preserve oil content and kernel integrity.

Adjustable Settings

Configurable parameters suitable for different seed varieties and hull thicknesses.

Stable Continuous Operation

Reliable performance for industrial production with consistent separation results.

Durable Construction

Heavy-duty industrial-grade components built for long service life in demanding environments.

Models

Technical Specifications

Standard models for different processing capacities. Custom configurations available according to seed type and project requirements.

Model	Capacity	Power	Dehulling Rate
SDM-1	1–2 TPH	XX KW	XX%
SDM-2	3–5 TPH	XX KW	XX%
SDM-3	5–10 TPH	XX KW	XX%

Customized solutions available according to seed type and project requirements.

By Oilseed Type

Applications

Suitable for dehulling a wide range of oil-bearing seeds before roasting, pressing or solvent extraction.

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Peanut Dehulling

Removing peanut shells before roasting and pressing for higher oil recovery.

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Sunflower Seed

Improving extraction efficiency and reducing fiber content in sunflower oil lines.

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Cottonseed

Preparing cottonseed for oil extraction with efficient hull separation.

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Specialty Oilseeds

Customized dehulling solutions for hemp seed and other oil-bearing crops.

Need a Dehulling Solution for Your Oil Processing Plant?

Tell us your seed type, processing capacity, country and existing equipment. Our engineers will recommend the most suitable dehulling solution.

Request a Quote Contact Engineer