Industrial sourcing · China to Europe

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Buyer guide · Agriculture & feed

Grain color sorter from China

Every grain color sorter claims high accuracy, but the figure is measured on the seller's grain at the seller's defect rate, and at your defect rate and throughput the same machine can throw out good kernels or let bad ones through.

Ask about this machine ↗Where the numbers come from

Written and listings checked 30 September 2026. Every figure on this page names its source.

What you are actually comparing.

Two quotes, one machine name

What hides inside the price

Chutes and capacity per chute

Capacity scales with the number of chutes, and each chute handles only so much grain before accuracy drops. Ask for tonnes per hour per chute on your grain at your defect rate, then count the chutes you need.

Cameras and light

Full color cameras see shade differences; infrared or shape-sensing cameras find stones, glass and mold that match the grain's color. Ask which defects each camera catches, with test images on your grain.

Ejectors and air

Ejector valve count, response time and life decide how cleanly a defect is removed without taking good kernels with it. The machine needs clean, dry compressed air, and the compressor and dryer are often left out of the quote.

Reject ratio and second pass

Carry-over is how many good kernels leave with each rejected one. A high ratio wastes grain. Many sorters re-sort the reject stream in a second stage; ask whether yours does and at what cost in chutes.

Software and remote support

Sort programs for each grain, language of the interface, and whether the seller can adjust settings remotely. Ask who in Europe can do it when the seller is asleep.

Before you ask for a price.

Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.

Grain types you sort: rice, wheat, maize, beans, pulses, seeds.
A sample of your worst lot, with the defect types named: discolored, broken, moldy, stones, foreign seeds.
Defect rate in your incoming grain and the defect rate you must reach.
Tonnes per hour needed, and whether a second pass of the reject stream is wanted.
Compressed air capacity on site, or whether a compressor and dryer must be quoted.

Turn the claim into a demonstration.

Require this	A pass looks like
Sort a weighed lot of your own grain, with a known defect count, at your target tonnes per hour.	Defects left in the accepted stream counted by hand on a weighed sample and inside the contract figure.
Count good kernels in a weighed sample of the reject stream.	Carry-over ratio calculated and at or below the value agreed in the offer.
Run for a full hour and repeat the count at the end.	Accuracy at the end within the agreed drift of the start, with air pressure logged.

The documents that must arrive with it.

EU Declaration of Conformity with model and serial number, under 2006/42/EC until 19 January 2027, then Regulation (EU) 2023/1230.
Low voltage 2014/35/EU and EMC 2014/30/EU references for the cameras, lights and control cabinet.
Food-contact declarations under Regulation (EC) 1935/2004 for chutes and hoppers where the grain is food.

The one people forget. The test report of your own sample, with defect counts before and after. It is the only proof the claimed accuracy applies to your grain.

When this is the wrong machine.

Buy something else if

Named, not hedged

Your grain is dirty with chaff, dust and stones of mixed size.

A seed cleaning machine first. A color sorter is the last step, after cleaning and grading by size.

You grade whole fruit by size, weight or blemish.

A fruit grading machine, built to carry each fruit separately.

Where the numbers come from.

We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.

Listings · 13Thirteen grain color sorter listings on one marketplace, checked September 2026, asked from US$1,620 to ranges reaching US$300,000, with 1 to 10 chutes where stated. Listed prices are asking prices, not landed cost.
Listings · 1One 10-chute grain color sorter listing, checked September 2026, stated 20 tonnes per hour.
Arithmetic20 tonnes per hour across 10 chutes is 2 tonnes per hour per chute.
GAPGAP - no supplier quotations logged for this machine yet. Three to five quotations for one configuration would give a real price spread.

Related machines.

Seed cleaning machine. Read it if your grain needs cleaning and size grading before any sorting by color.
Rice milling machine. Read it if you are building a rice line and the sorter is its last step.

Every machine we source in this area is on the Agriculture & feed page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.

Straight answers

Questions buyers ask about this machine.

What is the best grain color sorter from China for rice?+

One tested on your paddy or milled rice at your defect rate, with enough chutes for your tonnes per hour and a second stage for the reject stream.

Chinese vs European grain color sorter: how do they compare?+

Compare camera type, ejector life, software and support in your time zone. Test both on the same sample of your grain and compare counts, not brochures.

What goes on a grain color sorter inspection checklist?+

Serial against the declaration, camera and ejector counts against the offer, a sorted lot counted by hand, carry-over counted, and air consumption measured.

Who is the EU importer of a color sorter?+

The business placing it on the EU market. It checks the declaration and technical file and adds its name and address to the machine or papers.

Contact

Tell us what you need.

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