1. What is a Grain Sorter?

A grain sorter is an automated industrial machine designed to inspect and separate grains based on specific physical characteristics like color, size, shape, and density. It uses advanced optical sensors or mechanical sieves to rapidly detect and eject impurities, diseased seeds, and foreign matter, ensuring high-quality food safety and consistent agricultural packaging.

2. Basic Information

• Type: Optical / Color Sorter (Chute-type)

• Automatic Sorting: Yes (AI-powered vision system)

• Sensor/Camera: High-resolution CCD monochromatic/bichromatic cameras

• Processing Capacity: 1 to 5 tons per hour (varies by grain type)

•**** Air Ejectors****: High-frequency pneumatic valves (120 to 300 channels)

• Materials: Rice, wheat, corn, lentils, coffee beans, and sesame seeds

• Applications: Agriculture processing, milling industries, and food packaging quality control

3.1 Seasana Amaze MI 270

• Sorter Type: Single Phase Food Grain Color Sorter

• Key Feature: Compact portable footprint with color matching automation

• Primary Material: White rice, brown rice, and paddy grains

• Application: Local grain sorting mills and small agricultural centers

• Source Platform: View details on Seasana Machinery

3.2 Sigma-1 Automatic Colour sorting Machine

• Sorter Type: Multi-Channel Grain Sorter

• Channels / Chutes: 8 to 12 channels

• Sorting Speed: 2 to 5 tons per hour

• Structure: Premium structural steel coated in protective teal

• Source Platform: View specifications on TradeIndia

3.3 Multi Chute Colour Sorting Machine

• Sorter Type: Single Phase Automatic Sorter

• Output Capacity: 1 to 2 Tons per hour

• Interface: Integrated digital PLC control screen

• Suitable For: Dal, lentils, pulses, and minor millets

• Source Platform: Check live pricing on IndiaMART

3.4 Topsport Ts1 Electronic Grain Sorting Machine

• Sorter Type: High-End Multipurpose Grain Color Sorter

• Core Tech: High throughput optical lens with shape-sorting capability

• Suitable For: Corn, wheat, barley, and specialty grains

• Design: Ergonomic slim vertical layout with wheels

• Source Platform: View model highlights on Topsort Color Sorter

3.5 Optical colour sorting Machine

• Sorter Type: Shape and Color Optical Sorter

• Operating System: Integrated Windows System control architecture

• Output Capacity: 50 to 500 kg per hour

• Primary Target: Coffee beans, pistachios, plastics, and wheat grains

• Source Platform: Explore parameters on Made-in-China

4. Working Principle

The grain sorter works using Optical Color Sorting technology.

Raw Grains in Hopper → Vibratory Feeder → Chute Alignment → LED Illumination → High-Speed Cameras → Image Processor → Pneumatic Ejectors → Air Blast Deflection → Separate Chutes → Sorted Grains

5. Cost Estimation

Cost Estimate Overview

Item	Estimated Cost (₹)	Description
Grain Sorter Machine	₹35,000,000 – ₹25,000,000+	Varies by tech (Mechanical vs. AI Optical Color Sorter).
Air Compressor & Piping	₹1,000,000 – ₹3,000,000	Crucial for pneumatic sorting valves in color sorters.
Voltage Stabilizer & Electricals	₹40,000 – ₹1,000,000	Protects sensitive camera and AI control units.
Initial Spares & Accessories	₹20,000 – ₹50,000	Replacement filters, sorting chutes, and basic tools.
Total Estimated Initial Cost	₹1,95,000 – ₹29,500,000+	Depending strictly on industrial scale vs. farm scale.

6. Final Design Ideas

Based on a study of existing grain sorting technologies, a proposed grain sorter design can include:

• Automated feeding mechanism

• Vibratory separation tray

• High-speed optical sensors and cameras

• Pneumatic reject system with air nozzles

• Multi-channel sorting lanes

• Dust and debris extraction enclosure

• Real-time quality and throughput monitoring

• Wi-Fi and IoT connectivity

• Simple, intuitive user interface

• Low-cost and modular construction

• Easy-to-clean and replace components

• Adjustable sorting parameters for different grain types