
Overview of Oilseeds Sheller Machines
An oilseeds sheller machine is designed to remove shells, husks, or peels from various oil-bearing seeds prior to oil extraction. Many oilseeds, such as peanuts, sunflower seeds, palm kernels, and walnuts, contain shells with extremely low oil content. If left unremoved, these shells absorb oil during pressing, resulting in reduced oil yield and degraded oil quality.
Therefore, shelling is a critical pretreatment step in modern oil mill plants. Efficient oilseed shelling machines help processors maximize oil recovery, stabilize production capacity, reduce operating costs, while supporting the sustainable use of hulls and seed coats as biomass fuel or animal feed.
Why Shelling Is Important in Oil Seeds Pretreatment
Employing high-performance oilseed sheller machines delivers multiple technical and economic advantages:
- Enhances oil yield by minimizing oil absorption in hulls
- Improves crude oil quality by reducing impurities and phospholipid content
- Elevates meal quality for better suitability as feed or further processing
- Increased capacity of oil press machines and solvent extraction systems
- Reduced abrasion and wear on oil pressing and conveying equipment
- Improved flaking efficiency in flaking mills
- Comprehensive utilization of shells and peels, enhancing sustainability
Our oilseed shelling solutions are widely applied in edible oil production lines for peanuts, palm kernels, sunflower seeds, walnuts, and other oil-bearing materials.
Types of Oilseed Shelling Machines
We offer a range of specialized shelling machines tailored for different oilseeds, ensuring high shelling rates, low broken kernel rates, and seamless integration into edible oil production lines.
1. Peanut Shelling Machine
Peanut shelling machines are specifically designed for efficient removal of peanut shells while maintaining low kernel breakage rates. They are widely used in peanut oil production plants and peanut pre-processing lines.

The BK-3500B Peanut Shelling and Cleaning Machine is a new-generation, multi-functional, variable-speed oilseed shelling machine developed for large industrial users. It integrates shelling, cleaning, and impurity removal into a single unit for continuous operation.
Key Advantages
- Removes mud, stones, and debris from peanuts
- Automatically separates immature peanuts without stopping the machine
- Low dust emission, improving the working environment
- High shelling efficiency with clean, bright kernels
- Low crushing rate, suitable for high-quality oil pressing
Technical Parameters
- Model: 6BK-3500
- Capacity: 3500 kg/h
- Power: 2 × 7.5 kW
- Crushing Rate: ≤ 4%
2. Palm Nut Cracker Machine
The palm nut cracker machine is used to break palm fruits prior to kernel recovery and palm kernel oil extraction. After crushing, the palm kernel separator efficiently separates kernels from shells using an upward airflow.
We offer both small and large palm nut cracker machines to meet diverse production needs in palm oil mill plants.
Performance Features
- Cracking rate higher than 95%
- Kernel broken rate lower than 1%
- Stable operation and long service life
- Compatible with palm nut grading machines for size classification before cracking
This equipment is critical for achieving high palm kernel recovery rates and enhancing overall efficiency in palm kernel oil processing lines.
3. Sunflower Seed Shelling Machine
This sunflower seed shelling machine employs centrifugal shelling principles with a specially designed impact plate structure. This configuration ensures efficient shelling while minimizing damage to sunflower kernels.


Technical Parameters
- Model: HTBKJ200
- Capacity: 7.5–8.5 t/h
- Feeding Power: 1.5 kW
- Main Power: 18.5 kW
Structural and Operational Advantages
Heavy-duty, thickened structure for continuous industrial use
Vibration-damping pads to reduce noise and operational vibration
Large inspection door for quick maintenance and replacement of rotors, guide plates, and impact plates
Reduced downtime and increased productivity
This sunflower seed sheller machine is ideal for large-scale edible oil production lines and solvent extraction pretreatment systems.
4. Walnut Cracking Machine
The walnut cracking machine primarily crushes walnuts of varying sizes and varieties. By adjusting internal clearances, it achieves optimal crushing results while preserving kernel integrity.
Post-crushing, the walnut kernel-shell separator efficiently separates kernels from shells using airflow separation. An upstream walnut grader can be installed to ensure uniform crushing results.
Application Benefits
- Suitable for multiple walnut varieties
- Adjustable cracking gap for precise shelling
- High kernel integrity and low breakage rate
- Ideal for walnut oil pressing and food-grade kernel processing
Why Choose Our Oilseed Shelling Equipment?
- Efficiency: Advanced design ensures high shelling rates with minimal kernel damage.
- Durability: Robust construction guarantees long-term stable operation even under continuous use.
- Ease of Maintenance: User-friendly access ports and modular components minimize downtime.
- Custom Solutions: We provide tailored equipment recommendations based on your raw materials and production goals.
Committed to Quality and Service
At Huatai, product quality is our lifeline, and customer satisfaction drives our innovation. We provide comprehensive support including:
- Expert consultation and process design
- High-performance oilseed sheller machines and related equipment
- On-site installation guidance and operator training
- Rapid-response after-sales service and maintenance support
Upgrade your oil mill plant with our reliable oilseed sheller machines—designed for efficiency and durability to maximize your oil yield and product quality.

