MMCTECH Nexus 220 Series Seed Grading Screening Machines
The MMCTECH Nexus 220 Series Seed Grading Screening Machines are high-capacity screen seed graders designed for precise seed grading, grain classification, thickness separation, and multi-fraction product sizing in professional seed processing plants, grain cleaning facilities, agricultural grading operations, pulse processing lines, specialty seed plants, and industrial grain grading systems. Developed under MMCTECH Seed Processing Machines & Equipment with Automation Solutions, the Nexus 220 Series provides reliable performance for North America and international markets where accurate grading, stable throughput, and consistent product quality are required.
The Nexus 220 Series replaces the older Excell 220 naming structure with MMCTECH’s updated Nexus product family. This series is engineered for high-capacity seed and grain grading operations that require larger screen areas, multi-layer flat screen classification, multiple product fractions, and efficient product flow across wide screening surfaces. The machines are suitable for wheat, soybeans, corn, rice, barley, oats, sorghum, rye, peas, beans, lentils, chickpeas, sesame, sunflower seed, clover, grass seed, vegetable seeds, oilseeds, and specialty crops.
Modern seed processing facilities need more than a simple grading machine. They need a complete solution that can separate products by size and thickness, reduce mixed-grade material, improve final uniformity, prepare product before color sorting, and support consistent packaging quality. The MMCTECH Nexus 220 Series is designed for these requirements. It can be used as a standalone seed grader, grain grader, industrial grading separator, or as part of a complete seed cleaning and grading line.
The working principle of the Nexus 220 Series is based on multi-layer flat screen size and thickness classification. Product is distributed evenly across flat screen surfaces, where screen selection determines the separation target. Depending on model configuration, product can be separated into multiple fractions using different screen decks, counter-flow arrangements, and outlet configurations. This allows processors to remove undersized material, oversized product, broken kernels, small grains, large grains, and size-inconsistent product from the main product stream.
The Nexus 220 Series is especially valuable for wheat grading machine applications, rice grader screen applications, seed grading plant layouts, grain grading and cleaning machine lines, and agricultural grading machine systems where product uniformity is directly connected to final market value. By improving size consistency, the machine helps processors achieve better bagging performance, more attractive final product appearance, improved color sorter efficiency, and more consistent customer specifications.
In seed processing, accurate grading helps improve seed lot quality, seed treatment coverage, planting consistency, germination uniformity, and final packaging value. In grain and pulse processing, grading helps create uniform product categories and remove size-based defects before color sorting, gravity separation, packaging, storage, or export preparation. For food-grade operations, more uniform raw material sizing can support better milling, dehulling, polishing, roasting, cooking, and ingredient preparation.
The Nexus 220 Series can be installed after pre-cleaning and fine cleaning stages to perform accurate size and thickness classification. It can also be used before gravity separation to create a more uniform product layer for density-based separation. When installed before a color sorter, it can improve optical sorting performance by reducing size variation and stabilizing product flow. When installed after color sorting, it can serve as a final grading screen before packaging or bulk loading.
MMCTECH manufactures the Nexus 220 Series for North America and international markets. The machines can be configured for 208 / 240 / 480 / 600 VAC – 3 Phase – 50/60 Hz electrical standards. The series includes multiple model sizes from Nexus 221 to Nexus 229, allowing customers to select the most suitable machine according to required screen area, capacity target, product type, number of screens, available space, and processing line layout.
Best Ideal Seed Grading Applications
Wheat, Rice, Corn, Soybeans, Chickpeas, Beans, Lentils, Peas, Sesame Seed, Sunflower Seed, Rye, Sorghum, Barley, Oats, Clover, Grass Seed, Vegetable Seeds, Oilseeds, Pulses, Grain Seeds, Specialty Seeds, and Food-Grade Agricultural Products.
Key Features of the MMCTECH Nexus 220 Series
- Super Flat Screen Seed Grader Design: Provides accurate size and thickness classification for seeds, grains, pulses, and specialty crops.
- Multi-Layer Flat Screen Classification: Separates products into different fractions according to screen selection and product flow configuration.
- Wide Model Range: Includes Nexus 221, 222, 224, 225, 226, 227, 228, and 229 models for different capacity levels.
- Large Screen Area Options: Screen area ranges from 10.3 ft² (0.96 m²) to 355.2 ft² (33 m²).
- Consistent Product Uniformity: Helps remove undersized, oversized, broken, and size-inconsistent material.
- Professional Seed Grading: Suitable for seed grading machine, grain grader, wheat grader, screen grader, and industrial grading separator applications.
- Color Sorter Preparation: Creates a more uniform product stream before optical sorting systems.
- Turnkey Line Integration: Can be combined with MMCTECH pre-cleaners, fine cleaners, gravity separators, destoners, conveyors, color sorters, bagging systems, and automation panels.
- North America Electrical Compatibility: Designed for 208 / 240 / 480 / 600 VAC – 3 Phase – 50/60 Hz electrical standards.
- Industrial Construction: Built for continuous operation in commercial seed processing and grain grading facilities.
Where the Nexus 220 Series Is Used in a Processing Line
The MMCTECH Nexus 220 Series can be installed after seed cleaning equipment to perform size and thickness grading before gravity separation, color sorting, treating, bagging, or packaging. It is also suitable for grain grading and cleaning machine layouts where wheat, rice, corn, barley, oats, soybeans, pulses, and specialty crops must be separated into consistent commercial sizes. In complete processing plants, the Nexus 220 Series works as a key grading separator between cleaning and final quality control.
Ideal Industries
- Seed Processing Plants
- Grain Cleaning Facilities
- Wheat Grading Operations
- Rice Grading and Screening Lines
- Pulse Processing Plants
- Legume Processing Facilities
- Oilseed Processing Lines
- Grass and Garden Seed Processing Plants
- Food Ingredient Processing Facilities
- Export Preparation Facilities
- Agricultural Cooperatives
- Industrial Seed Grading Plants
- Turnkey Seed Processing Facilities
Why Choose MMCTECH?
MMCTECH manufactures seed processing machines, seed grading machines, grain cleaning equipment, screen seed graders, gravity separators, color sorting systems, conveyors, bagging systems, and automation solutions for agricultural processing facilities. The Nexus 220 Series is designed for processors who need efficient grading and separation solutions, professional screen grading, large screen area options, multiple model capacities, and reliable integration into modern seed processing lines.
The MMCTECH Nexus 220 Series Seed Grading Screening Machines are a strong solution for companies searching for a seed grader, seed grading machine, grading separator, grain grader, wheat grader, wheat seed grading machine, screen grader, grading machine for seeds, grain grading and cleaning machine, agriculture grading machine, industrial grading separator, cleaning and grading machine, grading screen machine, or professional seed grading plant equipment.
