Stages of a peanut seed processing line
Peanuts are one of the world’s most important oilseeds and snack crops. To ensure consistency and high yield, raw peanuts must go through a systematic processing line that cleans, grades, and prepares them for further use. The High-Efficiency Peanut Processing Plant by Xinlu is designed to meet these requirements, combining automation with precision engineering to produce the best results.
Why Peanut Seed Processing Matters
Proper seed processing ensures that peanuts meet international food safety and export standards. A well-designed processing line minimizes waste, preserves quality, and enhances shelf life — all of which are vital in a competitive market.
Growing Market Demand for High-Quality Peanuts
As demand increases in food, oil extraction, and snack industries, Peanut Seed Processing Line Manufacturers are focusing on advanced technologies that deliver efficiency and reliability.
Step 1: Pre-Cleaning and Impurity Removal
The first step involves removing dirt, stones, and plant debris. This ensures that only healthy and clean peanuts enter the processing line.
Advanced Equipment Used in Pre-Cleaning
Xinlu’s pre-cleaning units use vibrating screens, destoners, and magnetic separators for maximum impurity removal and minimal kernel damage.
Step 2: Shelling or Dehusking
Shelling separates the peanut kernels from their outer shells. Precision in this stage ensures high yield with minimal kernel breakage.
Shell Separation and Recovery Systems
Xinlu’s shelling machines feature air suction systems that automatically separate shells from kernels, improving efficiency and reducing contamination.
Step 3: Cleaning and Grading of Shelled Peanuts
After shelling, peanuts are graded by size, weight, and quality. This is critical for uniform roasting and packaging.
Sieving and Aspirating Mechanisms
Modern High-Efficiency Peanut Processing Plants integrate multiple sieves and aspirators to achieve fine grading accuracy while maintaining throughput.
Step 4: Sorting and Color Grading
Sorting eliminates discolored, damaged, or defective kernels to improve the visual appeal and quality consistency of the final product.
Optical Sorting Technology
Xinlu’s color sorters use high-resolution cameras and air jets to automatically remove off-color peanuts, ensuring a clean, uniform batch.
Step 5: Drying and Moisture Control
Drying reduces the moisture content to prevent fungal growth and extend storage life. Maintaining correct moisture levels is essential for export-grade peanuts.
Energy-Saving Drying Systems
Xinlu dryers use hot air recirculation and automatic temperature controls to ensure even drying, saving up to 30% in energy consumption.
Step 6: Peeling and Kernel Separation
Peeling removes the thin red skin from the peanut kernel — a key step for snack and peanut butter production.
Blanching and Air Separation Units
Mechanical blanchers and air separators are used for efficient peeling without damaging the kernels, maintaining a clean, bright appearance.
Step 7: Roasting (Optional Stage)
Roasting enhances flavor and aroma, creating the familiar nutty taste that consumers love. This stage is optional, depending on the end product.
Temperature and Flavor Control During Roasting
Xinlu roasting systems allow precise control over heat and airflow, ensuring evenly roasted peanuts with consistent texture and color.
Step 8: Packaging and Storage
Final packaging preserves freshness and protects peanuts during transportation and storage.
Hygienic and Vacuum Packaging Standards
Xinlu offers vacuum sealing and nitrogen-flushing options to prevent oxidation and extend product life, complying with global food safety standards.
Automation and Efficiency in Peanut Processing Plants
Modern High-Efficiency Peanut Processing Plants rely on automation for real-time monitoring, process optimization, and reduced labor.
Integration of Smart Control Systems
Xinlu integrates PLC and touchscreen interfaces that allow full control over every stage — from cleaning to packaging — ensuring efficiency and reliability.
Leading Peanut Seed Processing Line Manufacturers — Xinlu
As one of the leading Peanut Seed Processing Line Manufacturers, Xinlu specializes in complete turnkey solutions for peanut cleaning, grading, and packaging. The company’s advanced technology ensures high output and consistent product quality.
Advantages of Xinlu Peanut Processing Lines
Modular design for easy installation
Low energy consumption
Minimal maintenance requirements
Comprehensive after-sales service
Compliance with international food safety standards
Global Peanut Seed Processing Line Suppliers
Xinlu’s global presence extends to Asia, Africa, South America, and the Middle East. As one of the trusted Peanut Seed Processing Line Suppliers, the company provides customized equipment and technical support to clients worldwide.
International Support and Export Services
Xinlu offers on-site installation, operator training, and maintenance programs, ensuring optimal machine performance and customer satisfaction.
Frequently Asked Questions (FAQs)
1. What are the main stages in a peanut seed processing line?
The stages include pre-cleaning, shelling, grading, sorting, drying, peeling, roasting, and packaging.
2. Why is drying important in peanut processing?
Drying prevents mold growth and improves storage life, maintaining seed quality for longer periods.
3. What makes Xinlu’s processing lines high-efficiency?
Xinlu uses advanced automation, precise control systems, and energy-saving components to maximize yield.
4. Can the peanut processing line handle different varieties?
Yes. Xinlu systems can be customized for Virginia, Runner, and Spanish peanut types.
5. What standards do Xinlu plants comply with?
Xinlu equipment meets ISO, CE, and HACCP international quality and safety standards.
6. How often should machines be maintained?
Routine maintenance every 500–800 operating hours ensures consistent performance and longevity.
The future of peanut processing lies in automation, sustainability, and intelligent control systems. Companies like Xinlu continue to lead innovation with high-efficiency solutions that combine precision, safety, and environmental responsibility. Whether for oil extraction or snack production, the High-Efficiency Peanut Processing Plant by Xinlu ensures superior performance, reliability, and profitability.
