A nut grader is a machine used to sift through nuts and give them grades of different sizes. After grading nuts through the nut grader, the nuts at each level are of uniform size, providing convenience for subsequent processing. Nuts grading machines can not only give nuts, maidenhair fruit, red dates, and other granular products.
Working Principle of Nuts Grading Machine
The nuts grader utilizes the vibration of the vibrating screen to separate nuts of different sizes and shapes. The nuts enter the vibrating screen from the hopper, and under the excitation of the vibrator, the nuts vibrate on the screen mesh. Under the vibration of the vibrator, the nuts vibrate on the screen mesh.
Since nuts of different sizes and shapes pass through holes of various sizes, they can be separated. The graded nuts are easy to store and convenient for processing.
Application of Nuts Grading Machine
Size grading
The nut grading machine can grade nuts (either in-shell or shelled) based on their diameter or length. It is commonly used for the following types of nuts:
- Peanut
- Almond
- Hazelnut
- Brazil Nut
- Macadamia
- Cashew
- Pistachio
Grading of reprocessed materials
The grading machine is typically used to classify cleaned materials in order to improve grading efficiency. It can also be used to grade processed materials, enhancing processing efficiency and product quality.
- Shelled peanut kernels, almond kernels, cashew kernels, pistachio kernels, etc.
- Roasted nut granules
- Grading of nut pieces, whole kernels, and half kernels
Application of Production Line Process
Nut grading machines are often used as supporting equipment synchronized with nut production lines. The nut production line process is as shown in the diagram below:
Nut Raw Material → (Washing/Dedusting) → Elevator → Shelling Machine → Air Separator → Grading Machine → Final Product Packaging
↑
Unhulled Almonds Recycled for Reprocessing
The application scenarios of nut grading machines
- Nut Processing Enterprises (Primary and Deep Processing)
- Food Factories (for nut snacks, cashew nut candies, nut butter, etc.)
- Export Companies (meeting EU and US grading standards)
- Agricultural Cooperatives and Farms (for raw material sorting)
- Supermarkets / Retail Supply Chain Sorting Centers
Applications of different types of nuts grading machines
Taizy produces three main types of classifiers.
- The 2-stage classifiers are mainly used for rough screening of grain, ore, and coal.
- Class 3 classifiers are more widely used for general food, pharmaceuticals, and fine grading of chemical raw materials.
- Class 5 classifiers can be used for ultra-fine grading of materials; the most commonly used is for grading electronic components and semiconductor materials.
Customers can purchase or customize different types of classifiers according to their actual classification needs.
Nuts Grading Machine Parameters
| Item | Secondary sieve | Three-stage sieve | Five-stage sieve |
| Capacity | 500kg | 700kg | 1800kg |
| Power | 1.1kw | 1.1kw | 1.5kw |
| Voltage | 380v | 380v | 380v |
| Frequency | 50hz | 50hz | 50hz |
| Size | 2400*800*1400mm | 2400*800*1600mm | 2400*800*2200mm |
| Weight | 260kg | 300kg | 500kg |
Why choose Shuliy Nut Grading Machine?
High Grading Accuracy and Uniform Quality
Our cashew nut grading machine can accurately and consistently classify nuts based on size, weight, or other criteria, ensuring uniform product quality and enhancing the market competitiveness of our clients’ products.
Stable Equipment with Long Service Life
Manufactured with high-quality craftsmanship and premium SUS304 stainless steel, the grading machine operates reliably over the long term with low failure rates. Its robust and durable design reduces maintenance and replacement frequency, extending the equipment’s lifespan.
High Processing Capacity and Stable Operation
Our cashew nut grading machine boosts the overall efficiency of the processing line while reducing labor costs. The continuous automated grading system meets the demands of large-scale production.
Adaptable to Various Cashew Nut Types and Forms
Suitable for peanuts, almonds, pistachios, and more, in-shell or shelled. The grading standards and multifunctional modular design are adjustable to meet diverse and evolving product requirements.
Easy Operation with High Automation
Reduces the need for highly skilled operators. Intelligent features such as automatic adjustment, fault self-diagnosis, and remote monitoring enhance user experience, simplify maintenance, minimize downtime, and improve production continuity.
Energy Efficient and Environmentally Friendly
The nut grading machine is energy-efficient, helping lower operating costs. It is designed to meet environmental standards by reducing noise and dust emissions, ensuring compliance with local environmental regulations.
Excellent After-Sales Service and Cost-Effectiveness
Each machine offers a perfect match between price and performance. We provide professional technical support, installation, commissioning, and training to ensure quick production startup. Prompt after-sales service and spare parts supply reduce the risk of production downtime.
Customized Solutions
We offer tailor-made designs and solution adjustments according to customers’ specific needs to fit their actual production lines and improve overall equipment efficiency.
Maintenance and Care of The Nuts Grading Machine
The transmission parts of the machine should be checked to see whether they are normal or not before starting the machine.
The middle of each bearing of the machine needs to be lubricated frequently.
The rubber part is easily fatigued, so pay attention to replacing it regularly.
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