Nut grading machine

Nut grading machine is highly efficient and reliable, designed for the precise sorting of peanuts, apricot kernels, hazelnuts, almonds, beans, and other nuts. It sorts nuts into large, medium, and small sizes in a single pass using one, two, or three vibrating screens.

The nut grader’s interchangeable screens (6-10mm) allow for easy customization based on nut size, ensuring accurate grading and minimal breakage. Its design makes it an ideal choice for nut processing, enhancing storage and sale efficiency.

nut grading machine working video

Nut grader machine for sale

The nut grading machine is specifically designed to efficiently sort and categorize various kernels by size. It handles materials such as apricot pits, hazelnuts, almonds, and other nut varieties, as well as legumes.

Its multi-level grading system divides these materials into different sizes. This makes storage and subsequent sales more organized and convenient.

Key features include

• Multi-level grading. The machine uses first, second, and third-level vibrating screens to simultaneously screen and grade kernels into three or more size levels.
• Customizable screen panels. Equipped with interchangeable screen panels, the perforations range from 6 to 10 millimeters, allowing the machine to be easily adapted to different varieties of kernels.
• Low crushing rate. Designed to minimize crushing during processing, this machine ensures that the integrity of the kernels is maintained throughout sorting.
• Ideal for kernel processing. With its thoughtful design and efficiency, the machine is currently one of the best options for businesses processing kernel-type products.

Structure and working principle of the nut grading machine

The nut grading machine is designed to effectively sort kernels based on their size, serving as a complementary device to a shelling machine. Its structure and working principle are based on using differences in kernel size and vibrating screens to achieve accurate grading.

Structure

• Feeding hopper. Where the kernels are initially loaded for sorting.
• Screen body. Equipped with perforated screens of various sizes to facilitate the separation of kernels.
• Frame. The sturdy base supports the machine’s components.
• Eccentric drive mechanism. Powers the vibrating motion, enabling the grading process.
• Rubber bearings. These are used at connection points to ensure durability, shock absorption, and smooth operation.

Working principle

• The machine sorts kernels by utilizing the size differences between them. The vibrating screens, equipped with various-sized perforations, allow kernels to pass through based on their dimensions.
• Adjustable screen angles control the speed of material flow, ensuring efficient separation and grading.
• The eccentric drive mechanism creates the necessary back-and-forth motion, assisting in the separation process, while the rubber bearings ensure that the vibration is smooth and long-lasting.

Different types of nut grader machine

Our nut grading machines offer flexible grading options with customizable screens, typically available in two, three, or five tiers. This versatility allows customers to choose the best configuration for their production needs, ensuring efficient and precise sorting.

• Two-tier screen machine. Ideal for basic grading tasks, this model features two screen layers for quick and effective size-based nut categorization.
• Three-tier screen machine. A popular choice, this model has three screen layers for more detailed grading, making it suitable for finer nut classification.
• Five-tier screen machine. Designed for maximum precision, the five-tier model offers the most refined grading, ideal for meeting high product quality standards.

We also offer customizations, such as specialized screen sizes, to meet specific customer requirements.

Parameters of the nut grading machine

Recommendations for using nut grading machine

Before using the nut grading machine, it’s important to perform a detailed inspection to ensure everything is in proper working order. This helps prevent any issues during operation and ensures safety and efficiency.

• Inspect components. Check that all major parts are undamaged from transportation and confirm that all connections are secure.
• Verify electrical systems. Ensure all electrical switches and circuits are intact and safe to use.
• Initial test run. Start the machine without load to confirm smooth operation before beginning actual work.

Once the machine is ready, feed the kernels into the hopper, adjusting the discharge gate to maintain a steady material flow. Ensure the flow rate matches the machine’s screening speed to avoid overloading, which could affect separation efficiency.

For setups involving multiple shelling machines, adding a lifting conveyor can significantly reduce labor intensity and improve manpower allocation, streamlining the entire process.

Maintenance tips of nut grader

To ensure the optimal performance and longevity of the nut grader, regular maintenance is essential. Follow these key maintenance tips to keep the machine in good working condition.

Inspect transmission components

• Check that all transmission parts are functioning properly.
• Ensure that bolts are tight.
• Start the machine only if everything is secure.
• Verify the safety of all electrical switches and circuits.

Lubricate bearings regularly

• Apply lubrication oil to all bearings frequently to prevent damage from insufficient lubrication.

Monitor rubber bearings

• Replace worn-out rubber bearings during maintenance as needed.
• Check rubber bearings for wear in the oscillating mechanism.
• Since they work without a gap, fatigue and aging may occur.

Invest in our nut grader machine

In conclusion, our nut grader machine is an essential piece of equipment for efficiently sorting and grading nuts, offering customizable screen options to meet your production needs. With its robust design, precise grading capabilities, and ease of maintenance, it ensures high performance and reliability in your processing line.

Additionally, our company offers a wide range of other nut processing machines, including shelling machines , roasting machines , and packing equipment . Feel free to contact us for more details and inquiries—we’re here to help you find the perfect solution for your business.