MMCTECH SG-004 Four Deck Seed Grader Machine for sale designed for high-capacity seed grading, grain sizing, pulse processing, sesame cleaning and precision agricultural seed sorting applications.

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Four Deck Seed Grader Machine – Classic SG-004 Series

Name: Four Deck Seed Grader Machine | SG-004 Seed Grading Equipment
SKU: SG-004
Availability: InStock
Rating: 4.8 (81 reviews)

Model No: SG-004

The MMCTECH Four Deck Seed Grader Machine – Classic SG-004 Series is a high-capacity industrial screen seed grader designed for five-fraction classification of seeds, grains, pulses, legumes, oilseeds, and specialty crops. With four screen decks, eccentric screening motion, 86.1 ft² (8 m²) screen area, and 5.36 HP (4 kW) total power, the SG-004 supports precise grading for soybeans, chickpeas, lentils, sesame seeds, sunflower seeds, wheat, rice, corn, grass seeds, vegetable seeds, and spice seeds. It is suitable for seed processing plants, grain cleaning facilities, pulse processing operations, food processors, and industrial agricultural processing lines. The machine can be installed before or after color sorting systems and integrated with MMCTECH conveyors, cleaners, gravity separators, bagging systems, and automation solutions.

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MMCTECH Four Deck Seed Grader Machine – Classic SG-004 Series

The MMCTECH Four Deck Seed Grader Machine – Classic SG-004 Series is a high-capacity seed grading machine designed for precise multi-size classification of seeds, grains, pulses, legumes, oilseeds, garden seeds, spice seeds, and specialty agricultural products. Engineered for industrial seed processing plants, grain cleaning facilities, pulse processing operations, food ingredient processors, agricultural cooperatives, export preparation facilities, and turnkey seed cleaning lines, the SG-004 Series provides accurate five-fraction separation with a durable four deck screening system.

Modern seed processing requires more than basic cleaning. Processors need consistent sizing, reliable classification, stable capacity, and equipment that can integrate with pre-cleaners, fine cleaners, gravity separators, color sorters, conveyors, seed treaters, bagging systems, and automation control panels. The MMCTECH SG-004 is designed for these demanding applications. With four screen decks and five product fractions, this machine gives processors advanced control over final product size, market grade, quality consistency, and downstream processing efficiency.

The SG-004 works with an eccentric screening principle. Product enters the machine and is distributed across the screen decks through controlled eccentric motion. As the product moves through the four deck screening system, each screen level separates material according to selected perforation size. This process allows the machine to classify product into multiple grades, remove undersized material, remove oversized material, separate broken pieces, and improve uniformity before final packaging, storage, color sorting, or shipment.

For seed producers, accurate grading helps improve seed treatment coverage, planting uniformity, germination consistency, and final seed lot quality. For grain and pulse processors, multi-size grading improves product presentation, packaging consistency, export quality, and customer acceptance. For food processors, uniform raw material sizing supports more consistent cooking, roasting, milling, dehulling, polishing, and ingredient preparation. The MMCTECH SG-004 is built to support these requirements with reliable industrial performance.

The MMCTECH Four Deck Seed Grader is suitable for soybeans, chickpeas, dry beans, kidney beans, green lentils, red lentils, peas, sesame seeds, sunflower seeds, wheat, rice, corn, sorghum, millet, oats, barley, oilseeds, grass seeds, vegetable seeds, garden seeds, cumin seeds, spice seeds, and many specialty crops. It can be used as a standalone screen seed grader or integrated into a complete MMCTECH seed processing line.

Because the SG-004 produces five fractions, it is especially useful for facilities that require advanced size separation. A single product lot can be divided into multiple commercial grades, helping processors increase product value and reduce waste. The machine can also support final quality control by separating small broken pieces, oversized kernels, underdeveloped seeds, and size-inconsistent material from the main product stream.

The SG-004 is commonly installed before optical color sorters to improve product uniformity and help the color sorter operate with a more consistent material layer. When product size is more uniform, color sorting accuracy and efficiency can improve. The machine can also be installed after color sorting as a final grading step before bagging or packaging. This flexibility makes the SG-004 a strong solution for facilities searching for a seed cleaner and grader, grain cleaning equipment, seed sorting machine, grain processing machinery, vibratory seed grader, agricultural seed cleaner, industrial grain sorter, or high-capacity seed grader machine.

MMCTECH manufactures the SG-004 for North America and international markets with electrical compatibility for modern industrial facilities. The machine can be configured for 208 / 240 / 480 / 600 VAC, 3 Phase, 50/60 Hz electrical standards. Its heavy-duty structure, large screen area, eccentric screening motion, and four deck layout make it suitable for continuous operation in demanding agricultural processing environments.

Best Ideal Seed Grading Applications

Soybeans, Chickpeas, Dry Beans, Kidney Beans, Green Lentils, Red Lentils, Peas, Sesame Seeds, Sunflower Seeds, Wheat, Sorghum, Rice, Cumin Seeds, Corn, Kernel, Grain Seeds, Millet, Oats, Barley, Pulses, Oil Seeds, Garden Seeds, Grass Seeds, Vegetable Seeds, Spice Seeds, and Specialty Agricultural Products.

Key Features of the MMCTECH SG-004 Four Deck Seed Grader

Four Deck Screening System: Provides advanced multi-stage grading for industrial seed and grain processing lines.
Five Product Fractions: Separates agricultural products into up to five size fractions according to screen configuration.
Eccentric Screening Type: Supports stable product movement, accurate separation, and continuous grading performance.
Large Screen Area: 86.1 ft² (8 m²) screen area supports high-capacity processing applications.
Industrial Construction: Designed for demanding agricultural processing plants and continuous operation.
Flexible Screen Selection: Screen perforations can be selected according to crop type, desired grade, and separation target.
Improved Product Uniformity: Helps remove undersized, oversized, broken, and size-inconsistent material.
Color Sorter Integration: Can be installed before or after optical sorting systems for improved product quality.
North America Electrical Compatibility: Available for 208 / 240 / 480 / 600 VAC, 3 Phase, 50/60 Hz industrial facilities.
Turnkey Line Integration: Can be combined with MMCTECH pre-cleaners, fine cleaners, gravity separators, destoners, conveyors, bagging systems, and automation solutions.

Where the SG-004 Is Used in a Seed Processing Line

The MMCTECH SG-004 can be installed in several positions inside a seed processing plant. It can be used after pre-cleaning to classify the product before fine cleaning, gravity separation, or optical sorting. It can be installed before a color sorter to create a more uniform product layer and improve sorting performance. It can also be installed after a color sorter as a final grading machine before bagging, packaging, storage, or shipment. This makes the SG-004 a valuable part of complete agricultural seed processing equipment lines.

Ideal Industries

Industrial Seed Processing Plants
Commercial Seed Conditioning Facilities
Grain Cleaning Operations
Pulse Processing Plants
Legume Processing Facilities
Oilseed Processing Lines
Food Ingredient Processing Plants
Export Preparation Facilities
Seed Packaging Operations
Agricultural Cooperatives
Specialty Crop Processing Facilities
Turnkey Seed Processing Plants

Why Choose MMCTECH?

MMCTECH manufactures seed processing machines, grain cleaning equipment, seed grading systems, screen seed graders, seed sorting machines, color sorting lines, conveyors, bagging systems, and automation solutions for agricultural processing facilities. The SG-004 Series is designed for processors who need high-capacity grading, five-fraction separation, durable construction, and reliable integration into modern seed processing lines.

The MMCTECH Four Deck Seed Grader Machine – Classic SG-004 Series is a strong solution for companies searching for a seed grading machine, four deck seed grader, seed cleaner and grader, grain cleaning equipment, seed sorting machine, grain processing machinery, vibratory seed grader, agricultural seed cleaner, industrial grain sorter, or advanced seed processing equipment for high-capacity agricultural operations.

MMCTECH Seed Processing Machines & Equipment with Automation Solutions

MMCTECH four deck seed grading machines are designed for high-capacity industrial seed processing lines. The Classic SG-004 model ensures precise multi-size separation, superior product quality, and continuous operation performance for North American and global markets. This machine supports seed processing plants, grain cleaning facilities, pulse processing operations, oilseed processing lines, and specialty seed grading systems that require reliable five-fraction separation.

Standard Table – North America and International Electrical Standards

Machine Name	Four Deck Seed Grader
Machine Code	Classic SG-004
SKU	SG-004 Series
Machine Type	Four Deck Screening System
Number of Screens	4
Screen Area	86.1 ft² (8 m²)
Number of Fractions	5
Screening Type	Eccentric
Total Power	5.36 HP (4 kW)
Weight	4,850 lbs (2,200 kg)
Electrical Standards	208 / 240 / 480 / 600 VAC – 3 Phase – 50/60 Hz
Main Function	Five-fraction seed, grain, pulse, oilseed, and specialty crop classification
Suitable Products	Soybeans, chickpeas, dry beans, kidney beans, lentils, sesame seeds, sunflower seeds, wheat, rice, corn, sorghum, millet, oats, barley, pulses, oilseeds, grass seeds, vegetable seeds, garden seeds, spice seeds, cumin seeds, and specialty crops
Integration Options	Seed pre-cleaners, fine cleaners, air screen cleaners, gravity separators, destoners, color sorters, seed treaters, conveyors, bagging scales, and automation control systems

The MMCTECH SG-004 Four Deck Seed Grader can be supplied as part of a complete seed processing line or used as a standalone industrial screen seed grader for five-fraction classification. Technical values may vary according to product type, screen selection, moisture level, capacity requirement, and project configuration.

Four Deck Seed Grader Machine Specifications

Technical documentation, machine specifications, screen options, electrical requirements, installation layouts, spare parts information, operating manuals, and project-specific engineering drawings for the MMCTECH SG-004 Four Deck Seed Grader Machine are available upon request.

MMCTECH can support complete seed grading projects, grain cleaning lines, pulse processing systems, color sorting integrations, seed treatment lines, bagging systems, and automation solutions according to facility layout, crop type, capacity requirement, and North America electrical standards.

Contact MMCTECH: Request technical documents or project support

Frequently Asked Questions

Frequently Asked Questions About Four Deck Seed Grader Machines

What is a Four Deck Seed Grader Machine?

A Four Deck Seed Grader Machine is a screen-based seed grading machine used to separate seeds, grains, pulses, oilseeds, and agricultural products into multiple size fractions. The MMCTECH SG-004 uses four screen decks and eccentric screening motion to support high-capacity five-fraction classification.

What does the MMCTECH SG-004 Four Deck Seed Grader do?

The MMCTECH SG-004 separates product by size into up to five fractions. It can help remove broken grains, undersized seeds, oversized material, and size-inconsistent product depending on the selected screen perforations and processing target.

How does the SG-004 seed grading machine work?

Product is fed into the four deck screening system. Eccentric motion spreads and moves the product across the screen surfaces. Each screen level separates material according to perforation size, creating multiple final product fractions.

What is the working principle of the SG-004?

The SG-004 works with eccentric screening. This screening motion moves product across the screen decks and supports stable, accurate, and continuous size separation.

How many screen decks does the SG-004 have?

The SG-004 has four screen decks. This allows the machine to perform advanced multi-stage grading and produce up to five size fractions in one process.

How many fractions can the SG-004 produce?

The SG-004 can produce up to five fractions depending on screen configuration and product requirements.

What products can be processed with the SG-004?

The SG-004 can process soybeans, chickpeas, dry beans, kidney beans, lentils, sesame seeds, sunflower seeds, wheat, rice, corn, sorghum, millet, oats, barley, pulses, oilseeds, grass seeds, vegetable seeds, garden seeds, spice seeds, cumin seeds, and specialty crops.

Is the SG-004 suitable for soybean grading?

Yes. The SG-004 is suitable for soybean grading when multiple size fractions are required. It can help separate undersized, oversized, broken, and size-inconsistent soybean material.

Is the SG-004 suitable for pulse sorting and grading?

Yes. The machine is suitable for pulse sorting and grading applications such as chickpeas, lentils, peas, beans, kidney beans, and similar legume products.

Can the SG-004 process sesame seed and small seeds?

Yes. With the correct screen perforation, the SG-004 can process sesame seed, cumin seed, grass seed, vegetable seed, spice seed, and other small specialty seeds.

What is the screen area of the SG-004?

The SG-004 has a screen area of 86.1 ft² (8 m²).

What is the total power of the SG-004?

The SG-004 has a total power requirement of 5.36 HP (4 kW).

What is the weight of the SG-004?

The SG-004 weighs approximately 4,850 lbs (2,200 kg).

What is the capacity of the SG-004?

The capacity depends on product type, moisture level, screen perforation, product flow rate, and grading requirement. MMCTECH can help evaluate the correct machine configuration according to crop type and production target.

Why is four deck grading important?

Four deck grading gives processors advanced size separation control. It is useful when the product must be separated into several commercial grades or when broken, undersized, oversized, and mixed-size material must be removed more accurately.

What is the difference between a seed cleaner and a seed grader?

A seed cleaner removes impurities such as dust, straw, light material, broken pieces, and foreign material. A seed grader separates product according to size. The SG-004 is mainly used for multi-size grading and product classification.

Is the SG-004 a seed cleaner and grader?

The SG-004 is primarily a seed grader, but it can support seed cleaning operations by removing size-based unwanted material such as broken pieces, undersized seeds, oversized product, and size-inconsistent material.

Can the SG-004 be used before a color sorter?

Yes. Installing the SG-004 before a color sorter can improve product uniformity and help the color sorter operate with a more consistent product layer.

Can the SG-004 be used after a color sorter?

Yes. The SG-004 can be installed after a color sorter as a final size grading step before bagging, packaging, storage, or shipment.

Can the SG-004 be integrated into an existing processing line?

Yes. The SG-004 can be integrated with existing seed cleaning equipment, grain cleaning equipment, conveyors, elevators, color sorters, gravity separators, seed treaters, and bagging systems.

Can the SG-004 work with a gravity separator machine?

Yes. The SG-004 can be used before or after a gravity separator machine depending on the plant layout. Size grading before gravity separation can improve product uniformity and support more efficient density separation.

What electrical standards are available?

The SG-004 can be configured for 208 / 240 / 480 / 600 VAC, 3 Phase, 50/60 Hz electrical standards for North America and international industrial facilities.

Is the SG-004 suitable for industrial grain sorting?

Yes. The SG-004 is suitable for industrial grain sorter applications where wheat, corn, barley, oats, rice, and similar products must be classified into multiple size fractions.

Is the SG-004 suitable for commercial seed processing plants?

Yes. The SG-004 is designed for commercial and industrial seed processing operations that require five-fraction classification, high-capacity operation, durable construction, and consistent grading performance.

Does MMCTECH manufacture the SG-004?

Yes. MMCTECH manufactures the SG-004 Four Deck Seed Grader Machine as part of its Classic Seed Grader Series for seed processing, grain cleaning, and agricultural processing applications.

Can MMCTECH provide complete seed processing systems?

Yes. MMCTECH manufactures complete seed cleaning, grading, sorting, conveying, treating, bagging, and automation systems for seed processing plants and agricultural processing facilities.

Can the SG-004 help improve packaging quality?

Yes. Five-fraction grading improves product uniformity, which supports better packaging appearance, more consistent bag filling, and improved final product presentation.

How is seed grader machine price determined?

Seed grader machine price depends on model size, screen configuration, capacity requirement, electrical configuration, automation level, conveyors, installation layout, and integration with other equipment. MMCTECH can provide project-specific pricing after reviewing crop type, required capacity, and processing goals.