The walnut shelling production line is a fully integrated processing solution designed to crack raw walnuts efficiently while maximizing kernel integrity and cleanliness. With a stable capacity of 400–500 kg/h, this line combines grading, shelling, air separation, manual inspection, and kernel sieving into a continuous and reliable industrial process.
This automatic walnut shelling line is widely used in walnut processing plants, nut exporters, and food factories that require high kernel yield, controlled breakage, and consistent product grading.
Anwendungen
- Walnut kernel processing plants
- Nut exporters and trading companies
- Food ingredient manufacturers
- Snack and bakery raw material suppliers


The Complete Walnut Shelling Line Process Flow
Our 500kg/h line follows a strict industrial process to ensure quality:
Feeding and Elevation (Raw Material Elevator)
- Function: Automatically lifts raw walnuts into the grading machine.
- Specs: 3.5m length, PVC belt, Carbon steel frame.
- Power: 0.75kW (380V/50Hz).


Walnut Size Grading Machine
- Function: Sorts raw walnuts into 3-4 different size levels before cracking.
- Why it matters: Cracking walnuts of similar sizes together prevents crushing small nuts or failing to crack large ones.
- Capacity: 400-500kg/h.
- Power: 1.1kW.


Walnut Shelling and Separating Machine
- Function: This unit cracks the shell and uses an integrated air-suction system to separate the shell from the kernel.
- Features: Adjustable internal gap based on walnut size. The wind force lifts the shells away while the heavier kernels fall through.
- Capacity: 500kg/h.
- Power: 1.5kW (Motor) + 2.2kW (Fan).
- Material: Carbon steel body with stainless steel sieves.


Picking Belt (Manual Inspection)
- Function: A conveyor belt for workers to manually check for any remaining shell fragments or imperfect kernels.
- Specs: 3.5m x 0.75m wide. PVC food-grade belt.
- Power: 0.75kW.
Final Kernel Sieving Machine
- Function: Vibrating sieve to sort the final kernels into different grades (halves, quarters, pieces).
- Specs: 3-level sieve layers (6-10mm mesh).
- Power: 0.5kW.


Technical Specifications of the Walnut Shelling Production Line
| Component | Dimensions (L×W×H) | Power (kW) | Weight (kg) | Material |
|---|---|---|---|---|
| Aufzug | 3.5 × 0.5 × 0.5 m | 0.75 | 160 | Carbon Steel / PVC |
| Grading Machine | 3.6 × 0.9 × 1.6 m | 1.1 | 450 | Carbon Steel |
| Shelling Machine | 2.5 × 0.75 × 2.3 m | 3.7 (Total) | 400 | Carbon Steel / SS Sieve |
| Picking Belt | 3.5 × 0.75 m | 0.75 | — | Carbon Steel / PVC |
| Sieving Machine | 2.4 × 0.8 × 0.7 m | 0.5 | 300 | Carbon Steel / SS Sieve |
| Total Line Voltage | 380V / 50Hz / 3-Phase |
Key Advantages of the Walnut Cracking Line
- Stable capacity of 500 kg/h
- Adjustable shelving system for different walnut sizes
- High kernel integrity and low breakage rate
- Modular design, easy maintenance
- Suitable for continuous industrial operation
This automatic walnut shelling production line is designed for long-term, high-efficiency nut processing.


Kontaktieren Sie uns!
If you are planning to build or upgrade a walnut shelling production line, our team can help you select the right configuration based on your capacity, walnut variety, and kernel quality requirements.
We provide:
- Complete walnut shelling solutions
- Technical guidance and layout support
- Integration with grading, roasting, and packaging systems
Contact us today to receive a professional solution and detailed technical support.