Nexus 240 Series High Capacity Seed Grader Machines

Name: Nexus 240 Seed Grader Machine | High Capacity Screen Grader
SKU: Nexus 240 Series
Availability: InStock
Rating: 4.8 (142 reviews)

Model No: Nexus 240 Series

The MMCTECH Nexus 240 Series High Capacity Seed Grader Machines are industrial flat screen seed grading and cleaning systems designed for high-volume grain, seed, pulse, oilseed, paddy, and specialty crop processing lines. With models from Nexus 242 to Nexus 246, screen areas from 53.8 ft² (5 m²) to 161.5 ft² (15 m²), flat screen separation, air suction, feeding roller control, and high pre-cleaning capacity up to 220,462 lbs/hour (100 t/hour) for wheat and barley, the Nexus 240 Series supports efficient grading and separation solutions for wheat, barley, maize, peas, paddy rice, sunflower seed, canola, pulses, and specialty crops. It can be integrated with MMCTECH conveyors, cleaners, gravity separators, color sorters, bagging systems, silos, and automation control systems.

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MMCTECH Nexus 240 Series High Capacity Seed Grader Machines

The MMCTECH Nexus 240 Series High Capacity Seed Grader Machines are professional flat screen seed grading and cleaning systems designed for high-capacity grain, seed, pulse, and specialty crop processing lines. Developed under MMCTECH Seed Processing Machines & Equipment with Automation Solutions, the Nexus 240 Series is engineered for facilities that require efficient grading and separation solutions, strong pre-cleaning capacity, reliable fine cleaning performance, wide screen area, air suction support, and consistent product quality in industrial seed processing environments.

The Nexus 240 Series replaces the older Excell 240 naming structure with MMCTECH’s updated Nexus product family. This series is designed for large-scale seed processing plants, grain cleaning facilities, commercial agricultural operations, pulse processing plants, rice and paddy grading lines, wheat grading operations, oilseed processing facilities, and specialty seed grading applications. With models from Nexus 242 to Nexus 246, the series gives processors several capacity options according to crop type, required throughput, available installation space, and final product quality target.

The working principle of the Nexus 240 Series is based on a flat screen + air suction + feeding roller system. Product is fed into the machine through a controlled feeding system, distributed across the screening surface, and separated by flat screens according to product size and cleaning target. The air suction system helps remove lightweight impurities such as dust, chaff, husks, empty seeds, light straw particles, and other low-density material. This combination allows the machine to support both pre-cleaning and fine cleaning applications in one high-capacity platform.

Modern grain and seed processing plants need more than basic screen graders. They need machines that can handle high volumes while maintaining stable product flow, consistent separation accuracy, and reliable screen performance. The MMCTECH Nexus 240 Series is built for these requirements. It supports high-capacity pre-cleaning for wheat, barley, maize, peas, canola / rape seed, paddy rice, and sunflower seed, while also offering fine cleaning performance for malting barley, seed grain, maize, peas, and canola / rape seed where higher purity and improved uniformity are required.

The Nexus 240 Series is suitable for wheat, barley, rice, paddy, maize, corn, soybeans, peas, chickpeas, lentils, beans, sesame seed, sunflower seed, rye, sorghum, millet, oats, canola, rape seed, clover, alfalfa, grass seed, vegetable seeds, oilseeds, pulses, grain seeds, and specialty crops. It can be used as a standalone high capacity seed grader machine or integrated into complete MMCTECH processing lines with seed pre-cleaners, fine seed cleaners, gravity separators, destoners, color sorters, conveyors, elevators, seed treaters, bagging scales, silos, and automation control panels.

For seed producers, accurate cleaning and grading helps improve seed lot quality, seed treatment coverage, planting consistency, germination uniformity, and packaging value. For grain processors, stronger pre-cleaning and grading helps improve product handling, storage, milling preparation, dehulling preparation, and final market presentation. For rice and paddy processors, flat screen separation and properly selected screens for rice graders help classify product more consistently before downstream sorting or packaging. For pulse processors, the Nexus 240 Series supports cleaner, more uniform product flow before gravity separation or optical color sorting.

The Nexus 240 Series is especially useful before a color sorter. A color sorter performs better when the product entering the machine is cleaner, more uniform, and free from excessive dust, chaff, large impurities, and inconsistent size fractions. By installing a Nexus 240 Series machine before optical sorting, processors can reduce the burden on the color sorter and improve final sorting efficiency. The machine can also be used before gravity separation to create a more uniform product layer for density-based separation.

With screen areas from 53.8 ft² (5 m²) to 161.5 ft² (15 m²), and pre-cleaning capacity up to 220,462 lbs/hour (100 t/hour) for wheat and barley on the Nexus 246 model, this series is built for demanding industrial applications. The model range allows customers to choose the right machine for medium, large, and very high-capacity processing lines. Each model can be configured according to crop type, impurity level, airflow requirement, screen selection, installation layout, and North America electrical standards.

MMCTECH manufactures the Nexus 240 Series for North America and international markets. The machines can be configured for 208 / 240 / 480 / 600 VAC – 3 Phase – 50/60 Hz industrial electrical systems. MMCTECH can also support complete engineering, automation, layout planning, equipment integration, and processing line design according to the customer’s crop, capacity, facility layout, and final product quality target.

Best Ideal Seed Grading and Cleaning Applications

Wheat, Barley, Rice, Paddy, Maize, Corn, Soybeans, Peas, Chickpeas, Beans, Lentils, Sesame Seed, Sunflower Seed, Rye, Sorghum, Millet, Oats, Canola, Rape Seed, Clover, Alfalfa, Grass Seed, Vegetable Seeds, Oilseeds, Pulses, Grain Seeds, Specialty Seeds, and Food-Grade Agricultural Products.

Key Features of the MMCTECH Nexus 240 Series

High Capacity Seed Grader Design: Built for industrial grain and seed processing lines that require large-volume cleaning and grading.
Flat Screen + Air Suction System: Combines mechanical screen separation with air-assisted light impurity removal.
Feeding Roller System: Helps maintain controlled product flow across the screen surface.
Pre-Cleaning and Fine Cleaning Capability: Supports both high-capacity rough cleaning and more precise fine cleaning applications.
Wide Model Range: Includes Nexus 242, 243.1, 243.2, 244.1, 244.2, 245, and 246 models.
Large Screen Area Options: Screen area ranges from 53.8 ft² (5 m²) to 161.5 ft² (15 m²).
Air Suction Support: Removes dust, chaff, light impurities, husks, empty seeds, and low-density unwanted material.
High-Capacity Wheat and Grain Processing: Suitable for wheat grading, barley cleaning, maize cleaning, paddy rice pre-cleaning, and pulse processing.
Color Sorter Preparation: Creates a cleaner and more uniform product stream before optical sorting.
Turnkey Line Integration: Can be combined with MMCTECH cleaners, graders, gravity separators, destoners, conveyors, color sorters, bagging systems, silos, and automation panels.
North America Electrical Compatibility: Available for 208 / 240 / 480 / 600 VAC – 3 Phase – 50/60 Hz industrial standards.

Where the Nexus 240 Series Is Used in a Processing Line

The MMCTECH Nexus 240 Series can be installed after intake and pre-cleaning stages to handle high-capacity product flow before fine cleaning, gravity separation, color sorting, treating, bagging, or storage. It can also be used as a main pre-cleaner and grader in grain cleaning lines where wheat, barley, maize, peas, paddy rice, sunflower seed, canola, and specialty crops require high-volume separation. In complete MMCTECH processing plants, the Nexus 240 Series works as a key screen grader between raw product intake and final quality control.

Ideal Industries

Seed Processing Plants
Grain Cleaning Facilities
Wheat and Barley Processing Lines
Paddy and Rice Grading Facilities
Maize and Corn Cleaning Lines
Pulse Processing Plants
Oilseed Processing Facilities
Grass and Garden Seed Processing Plants
Commercial Agricultural Cooperatives
Food Ingredient Processing Facilities
Export Preparation Plants
Industrial Grain Grading Operations
Turnkey Seed Processing Facilities

Why Choose MMCTECH?

MMCTECH manufactures high-capacity seed grader machines, seed cleaning equipment, screen graders, grain grading systems, gravity separators, color sorters, conveyors, bagging systems, silos, and automation solutions for agricultural processing facilities. The Nexus 240 Series is designed for processors who need reliable high-volume grading, efficient separation, air-assisted cleaning, professional screen grading, and complete processing line integration.

The MMCTECH Nexus 240 Series High Capacity Seed Grader Machines are a strong solution for companies searching for efficient grading and separation solutions, screens for rice graders, screen graders, high capacity seed grader machine, grain grading equipment, seed grading machine, wheat grader, grain cleaner and grader, paddy pre-cleaning machine, or industrial flat screen seed grading equipment for professional seed and grain processing lines.

MMCTECH Seed Processing Machines & Equipment with Automation Solutions

The Nexus 240 Series, offered under MMCTECH Seed Processing Machines & Equipment with Automation Solutions, provides high-capacity seed grading, grain cleaning, pre-cleaning, and fine cleaning performance for North America and international markets. Developed for large-scale seed processing plants, grain cleaning facilities, paddy and rice grading lines, wheat and barley processing operations, and specialty seed grading applications, this series combines flat screen separation, air suction, and feeding roller technology for professional industrial performance.

Standard Table – North America and International Electrical Standards

Machine Name	Nexus 240 Series Seed Grading Screening Machines
Machine Code	Nexus 240 Series
SKU	Nexus 240 Series
Machine Type	Flat Screen Seed Grader
Working Principle	Flat Screen + Air Suction + Feeding Roller
Electrical Standards	208 / 240 / 480 / 600 VAC – 3 Phase – 50/60 Hz
Main Function	High-capacity seed, grain, pulse, oilseed, paddy, and specialty crop pre-cleaning, fine cleaning, grading, and classification
Suitable Products	Wheat, barley, rice, paddy, maize, corn, peas, canola, rape seed, sunflower seed, soybeans, pulses, oilseeds, grass seed, vegetable seeds, and specialty crops
Integration Options	Seed pre-cleaners, fine cleaners, gravity separators, destoners, color sorters, conveyors, elevators, seed treaters, bagging scales, silos, and automation control systems

Nexus 240 Series Pre-Cleaning Capacity Table

Model	Wheat & Barley	Canola / Rape Seed	Maize / Corn	Peas	Paddy Rice	Sunflower 14% Moisture
242	66,139 lbs/hour (30 t/hour)	55,116 lbs/hour (25 t/hour)	55,116 lbs/hour (25 t/hour)	55,116 lbs/hour (25 t/hour)	27,558 lbs/hour (12.5 t/hour)	27,558 lbs/hour (12.5 t/hour)
243.1 & 243.2	99,208 lbs/hour (45 t/hour)	77,162 lbs/hour (35 t/hour)	77,162 lbs/hour (35 t/hour)	77,162 lbs/hour (35 t/hour)	38,581 lbs/hour (17.5 t/hour)	38,581 lbs/hour (17.5 t/hour)
244.1 & 244.2	110,231 lbs/hour (50 t/hour)	88,185 lbs/hour (40 t/hour)	88,185 lbs/hour (40 t/hour)	88,185 lbs/hour (40 t/hour)	44,092–55,116 lbs/hour (20–25 t/hour)	44,092–57,320 lbs/hour (20–26 t/hour)
245	132,277 lbs/hour (60 t/hour)	110,231 lbs/hour (50 t/hour)	110,231 lbs/hour (50 t/hour)	110,231 lbs/hour (50 t/hour)	66,139–77,162 lbs/hour (30–35 t/hour)	66,139–79,366 lbs/hour (30–36 t/hour)
246	220,462 lbs/hour (100 t/hour)	198,416 lbs/hour (90 t/hour)	198,416 lbs/hour (90 t/hour)	198,416 lbs/hour (90 t/hour)	99,208–110,231 lbs/hour (45–50 t/hour)	99,208–112,436 lbs/hour (45–51 t/hour)

Nexus 240 Series Fine Cleaning Capacity Table

Model	Malting Barley	Seed Grain	Canola / Rape Seed 98% Purity	Maize and Peas
242	6,614–11,023 lbs/hour (3–5 t/hour)	2,205–6,614 lbs/hour (1–3 t/hour)	2,205–6,614 lbs/hour (1–3 t/hour)	2,205–6,614 lbs/hour (1–3 t/hour)
243.1 & 243.2	11,023–17,637 lbs/hour (5–8 t/hour)	6,614–11,023 lbs/hour (3–5 t/hour)	6,614–13,228 lbs/hour (3–6 t/hour)	6,614–8,818 lbs/hour (3–4 t/hour)
244.1 & 244.2	13,228–22,046 lbs/hour (6–10 t/hour)	8,818–13,228 lbs/hour (4–6 t/hour)	8,818–13,228 lbs/hour (4–6 t/hour)	8,818–11,023 lbs/hour (4–5 t/hour)
245	22,046–33,069 lbs/hour (10–15 t/hour)	13,228–17,637 lbs/hour (6–8 t/hour)	13,228–17,637 lbs/hour (6–8 t/hour)	13,228–17,637 lbs/hour (6–8 t/hour)
246	33,069–55,116 lbs/hour (15–25 t/hour)	17,637–26,455 lbs/hour (8–12 t/hour)	17,637–26,455 lbs/hour (8–12 t/hour)	44,092 lbs/hour (20 t/hour)

Nexus 240 Series Technical Specification Table

Model	Screen Area	Height Without Fan	Length	Width Incl. Motor	Screen Motor	Fan Motor	Feeding Roller Motor	Air Volume	Weight
242	53.8 ft² (5 m²)	88.4 in (2245 mm)	88.0 in (2235 mm)	76.4 in (1940 mm)	2.0 HP (1.5 kW)	7.4 HP (5.5 kW)	1.0 HP (0.75 kW)	3,767 CFM (6,400 m³/hour)	3,549 lbs (1,610 kg)
243.1 & 243.2	75.3 ft² (7 m²)	88.4 in (2245 mm)	118.6 in (3012 mm)	75.3 in (1913 mm)	3.0 HP (2.2 kW)	7.4 HP (5.5 kW)	1.0 HP (0.75 kW)	6,239 CFM (10,600 m³/hour)	4,266 lbs (1,935 kg)
244.1 & 244.2	107.6 ft² (10 m²)	101.0 in (2565 mm)	118.6 in (3012 mm)	75.3 in (1913 mm)	3.0 HP (2.2 kW)	10.1 HP (7.5 kW)	1.0 HP (0.75 kW)	6,239 CFM (10,600 m³/hour)	4,718 lbs (2,140 kg)
245	139.9 ft² (13 m²)	114.0 in (2895 mm)	128.7 in (3270 mm)	90.6 in (2300 mm)	2.0 HP (1.5 kW)	10.1 HP (7.5 kW)	1.5 HP (1.1 kW)	6,474 CFM (11,000 m³/hour)	5,093 lbs (2,310 kg)
246	161.5 ft² (15 m²)	127.2 in (3230 mm)	142.7 in (3625 mm)	77.1 in (1958 mm)	1.5 HP (1.1 kW)	14.8 HP (11 kW)	3.0 HP (2.2 kW)	8,829 CFM (15,000 m³/hour)	6,691 lbs (3,035 kg)

The MMCTECH Nexus 240 Series can be supplied as a standalone high-capacity seed grader machine or integrated into a complete seed cleaning, grading, sorting, treating, conveying, storage, and bagging line. Capacity values may vary according to crop type, impurity level, moisture level, screen selection, airflow setting, feed rate, and project configuration.

Technical Documents & Project Support

Technical specifications, model selection details, screen options, air suction requirements, feeding roller configuration, electrical standards, installation layouts, crop capacity planning, spare parts information, and project-specific engineering support for the MMCTECH Nexus 240 Series High Capacity Seed Grader Machines are available upon request.

MMCTECH can help evaluate your crop type, impurity level, required capacity, facility layout, automation needs, screen area requirement, airflow requirements, and final product quality target to recommend the most suitable seed grading machine or complete processing line.

Contact MMCTECH: Request technical information or project support

Frequently Asked Questions

Frequently Asked Questions About High Capacity Seed Grader Machines and Nexus 240 Series

What is the best seed grader machine for a high-capacity processing plant?

The best seed grader machine for a high-capacity processing plant depends on crop type, required capacity, impurity level, screen area, airflow requirement, available space, and final product quality target. The MMCTECH Nexus 240 Series is designed for large-volume grain and seed operations that need flat screen grading, air suction, feeding roller control, and reliable industrial performance.

How do I choose the right Nexus 240 model?

The correct Nexus 240 model depends on the required hourly capacity, crop type, screen area, pre-cleaning or fine cleaning requirement, installation space, airflow needs, and final product specification. Nexus 242 is suitable for lower-capacity industrial lines, while Nexus 246 is designed for very high-capacity applications up to 220,462 lbs/hour (100 t/hour) in wheat and barley pre-cleaning.

Do I need a seed cleaner, seed grader, gravity separator, or color sorter?

Most professional seed and grain processing lines use more than one machine. A seed cleaner removes impurities, a seed grader separates by size, a gravity separator separates by density, and a color sorter removes discolored or defective product. The Nexus 240 Series can support cleaning and grading before gravity separation, color sorting, treating, bagging, or storage.

What is the best machine before a color sorter?

Before a color sorter, the product should usually pass through cleaning and grading equipment to remove dust, chaff, light impurities, oversized material, and inconsistent size fractions. The Nexus 240 Series can help create a cleaner and more uniform product stream before optical sorting.

What is the difference between pre-cleaning and fine cleaning?

Pre-cleaning is usually used to remove larger impurities, dust, chaff, and unwanted material at higher capacity. Fine cleaning is used when the product requires more precise cleaning, improved purity, and better preparation before grading, treating, color sorting, packaging, or export.

Is the Nexus 240 Series suitable for wheat and barley processing?

Yes. The Nexus 240 Series is suitable for wheat and barley pre-cleaning, fine cleaning, and grading support. Depending on model selection, wheat and barley pre-cleaning capacity ranges from 66,139 lbs/hour (30 t/hour) on Nexus 242 to 220,462 lbs/hour (100 t/hour) on Nexus 246.

Can the Nexus 240 Series be used for rice and paddy cleaning?

Yes. The Nexus 240 Series can be used for paddy rice pre-cleaning and rice grading line applications when proper screen selection and airflow settings are used. It is useful for facilities searching for screen graders or screens for rice graders.

Can the Nexus 240 Series clean maize, corn, and peas?

Yes. The Nexus 240 Series supports maize, corn, and peas in both pre-cleaning and fine cleaning applications. Pre-cleaning capacity can reach up to 198,416 lbs/hour (90 t/hour) for maize and peas on the Nexus 246 model.

Can the Nexus 240 Series process sunflower seed?

Yes. The Nexus 240 Series can process sunflower seed, including sunflower seed at 14% moisture. Depending on model selection, pre-cleaning capacity ranges from 27,558 lbs/hour (12.5 t/hour) to 99,208–112,436 lbs/hour (45–51 t/hour).

Can the Nexus 240 Series process canola or rape seed?

Yes. The Nexus 240 Series can process canola / rape seed for pre-cleaning and fine cleaning applications. Fine cleaning capacity for canola / rape seed at 98% purity ranges from 2,205–6,614 lbs/hour (1–3 t/hour) on Nexus 242 to 17,637–26,455 lbs/hour (8–12 t/hour) on Nexus 246.

Is the Nexus 240 Series suitable for pulses and legumes?

Yes. The Nexus 240 Series can be used for peas, beans, chickpeas, lentils, and other pulses depending on screen selection, airflow settings, and process layout. It can be integrated into pulse cleaning, grading, gravity separation, color sorting, and bagging lines.

What is a flat screen seed grader?

A flat screen seed grader is a machine that uses flat screen surfaces to separate seeds, grains, pulses, and agricultural products by size. The Nexus 240 Series combines flat screen separation with air suction and feeding roller control for high-capacity cleaning and grading.

What is the advantage of air suction in a seed grader?

Air suction helps remove lightweight impurities such as dust, chaff, husks, empty seeds, straw particles, and light foreign material from the product stream. This improves product cleanliness and helps downstream equipment work more efficiently.

Why is a feeding roller important?

A feeding roller helps regulate product flow into the machine. Controlled feeding improves screen loading, separation accuracy, product distribution, and overall machine performance.

What screen area do I need for my seed processing line?

The required screen area depends on crop type, capacity target, impurity level, cleaning target, and screen selection. The Nexus 240 Series offers screen area options from 53.8 ft² (5 m²) to 161.5 ft² (15 m²), allowing MMCTECH to match the model to the processing requirement.

Is the Nexus 240 Series suitable for industrial grain cleaning?

Yes. The Nexus 240 Series is suitable for industrial grain cleaning and grading applications where high capacity, consistent product flow, and air-assisted impurity removal are required.

Can the Nexus 240 Series be used in a complete seed processing plant?

Yes. The Nexus 240 Series can be integrated into complete seed processing plants with pre-cleaners, fine cleaners, seed graders, gravity separators, destoners, color sorters, conveyors, elevators, seed treaters, bagging systems, silos, and automation control systems.

Can the Nexus 240 Series be used before a gravity separator?

Yes. Cleaning and grading before a gravity separator can improve density separation performance by reducing dust, light impurities, and size variation in the product stream.

Can the Nexus 240 Series improve packaging quality?

Yes. Cleaner and more uniform product improves final appearance, bagging consistency, storage quality, and customer acceptance. This is especially important for wheat, barley, pulses, rice, paddy, maize, oilseeds, and export products.

What electrical standards are available for the Nexus 240 Series?

The Nexus 240 Series can be configured for 208 / 240 / 480 / 600 VAC, 3 Phase, 50/60 Hz electrical standards for U.S., Canadian, and international industrial facilities.

How is high capacity seed grader machine price determined?

High capacity seed grader machine price depends on model size, screen area, capacity requirement, airflow system, motor configuration, electrical standard, automation level, conveyors, installation layout, and whether the machine is supplied as a standalone unit or part of a complete processing line.

Where can I buy a high capacity seed grader machine?

You can contact MMCTECH to discuss Nexus 240 Series high capacity seed grader machine options for wheat, barley, maize, peas, paddy rice, sunflower seed, canola, pulses, specialty seeds, and complete processing line integration.

Does MMCTECH manufacture screen graders?

Yes. MMCTECH manufactures screen graders, seed cleaning machines, seed grading machines, grain cleaning equipment, gravity separators, color sorters, conveyors, bagging systems, silos, automation solutions, and complete seed processing lines for North America and international markets.