Processing Workflow: 3-Step High-Efficiency System

Step 1: Precision Grading The process begins with the drum screen classifier, which accurately sorts raw macadamia nuts into 4 distinct size categories. Pre-grading is critical for industrial operations, as it ensures that the downstream cracking machines apply the exact pressure needed for each specific nut size, thereby minimizing kernel damage.

Step 2: Adjustable Roller Cracking The graded nuts are transported via elevator to the shell-breaking machines. The roller gap is precisely adjusted based on the macadamia size. The system efficiently cracks 2 sizes directly, while the remaining 2 sizes are collected for tailored processing. Featuring food-grade stainless steel (SS) for all contact parts, the crackers ensure hygiene and durability while achieving a 90% whole kernel rate.

Step 3: Optical Color Sorting & Separation The cracked mixture is moved via a PVC conveyor belt to the HL-LCS2 Color Sorter. This high-efficiency optical separator flawlessly separates the valuable macadamia kernels from the broken shells. By utilizing advanced optical technology, the machine not only boosts processing speed but also significantly reduces the oil rate of the macadamia nuts, preserving product quality and extending shelf life.

Core Machine Parameters & Components

This production line operates on a 380V / 50Hz 3-phase power grid, with a total power consumption of just 9 kW, ensuring energy-efficient operation.

• 1. Feeding Elevator (Primary)
  • Power: 0.75 kW
  • Dimensions: 5.0m × 0.5m × 0.5m
  • Weight: 160 kg
• 2. Drum Screen Classifier
  • Capacity: 1,000 kg/h
  • Dimensions: 2.5m × 1.5m × 2.6m
  • Motor Power: 1.5 kW
  • Material: Heavy-duty Carbon Steel
  • Weight: 800 kg
• 3. Feeding Hopper & Shelling Machine Entry
  • Hopper Dimensions: 1.0m × 1.0m × 1.6m
  • Shelling Machine Power: 0.05 kW (per unit)
  • Quantity: 4 entries matched to the production line.
• 4. Shell Breaking (Cracking) Machines
  • Capacity: 500 kg/h per unit (2 units included for a combined 1,000 kg/h capacity)
  • Power: 2.2 kW + 0.25 kW per unit
  • Whole Kernel Rate: 90%
  • Dimensions: 2.5m × 0.8m × 1.4m (per unit)
  • Material: Stainless Steel for food contact areas; Carbon Steel for structural frame.
  • Weight: 560 kg per unit
• 5. Conveyor Belt System
  • Dimensions: 4.0m × 0.6m × 1.5m
  • Power: 1.1 kW | Voltage: 380V
  • Material: PVC food-grade belt with Stainless Steel frame.
• 6. Discharge Elevator (Secondary)
  • Power: 0.75 kW
  • Dimensions: 3.5m × 0.5m × 0.5m
  • Weight: 160 kg
• 7. HL-LCS2 Optical Color Sorter
  • Capacity: 600 – 800 kg/hour
  • Power: 1.3 kW
  • Dimensions: 1.31m × 1.50m × 1.76m
  • Weight: 400 kg
  • Gas Consumption Requirement: 0.6 – 0.8 MPa (Compressed air required for sorting mechanism)

Operational Requirements

• Personnel Required: 2–3 operators per shift.
• Total Power Requirement: 9 kW.
• Compressed Air: 0.6 – 0.8 MPa supply required for the color sorting unit.

Trade Terms, Support & Warranty

We stand behind our industrial equipment with comprehensive after-sales support to ensure your production line is up and running smoothly.

• Warranty: 1-Year full guarantee against machine-self malfunctions.
• Technical Guidance: Free lifetime technical guidance and operational training provided via video or any other preferred remote formats.
• On-Site Installation & Debugging (Optional): If on-site installation and debugging are required by the buyer, the buyer shall provide accommodation and round-trip travel expenses for our technicians, plus a service fee of $200 per person, per day.

Upgrade your macadamia processing capabilities today. This high-yield, low-labor production line is the ultimate solution for industrial nut processing facilities looking to scale output without compromising kernel integrity. Contact our sales team for a customized quote and freight forwarding options.

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