Wheat Cleaning Machine

ABC Machinery is a world leading grain processing machine & complete plant manufacturer, offering turnkey project design, installation and commissioning. It is joint-ventured by KMEC and GEMCO. We mainly engage in 10-1000ton/d wheat flour plant, 10-200ton/d maize/corn flour plant, and other grain processing machines including wheat cleaning machine and bean hulling equipment. We also supply all the flour milling machines which can be used in complete flour mill plant.

ABC Machinery has built many turnkey projects for our clients in New Zealand, Chile, Zambia, Argentina, Indonesia, Ethiopia, Colombia, etc.

Small Grain Cleaning & Hulling Production Line

Small Wheat Cleaning Plant for Mini Flour Manufacturing Plant

Air-Screen Type of Wheat Cleaning Machine

Grown out in the open, wheat has various different contaminants, which have to be removed to get high quality raw product. To uphold to the standards producers used to have a net loss of up to 50% of the healthy sees. That is why wheat cleaning machines are so important — they enable producers to clean the wheat with minimal loss in of the good wheat.
Whether you're dealing with a small family farm or a huge industrial flour mill operation, air-screen type of a wheat cleaning machine is the most common one.

Usually, all the other machines are subsequent to it. The machine is made out of a series (most commonly four) screens that gradually remove contaminants, grades and sizes the seed, while an airflow blows off light, unsatisfying seeds and chaff.

Graders

Graders are another type of wheat cleaning machines that organize wheat seeds by their thickness. It is made out of rotating cylindrical shells with perforations into which wheat is fed. While the seeds roll in the shell, smaller fragments fall through the perforations and the good product exits the machine. To further separate wheat by length more wheat cleaning machines are used. Usually they separate bad seed from the good ones by fitting the seeds into indentations too shallow for seeds that are long enough.

Two most common types of those machines are indent cylinder and the indent disk. The indent cylinder utilizes centrifugal force to tumble the grains and lift too small ones with the indentations, while the indent disk is a shaft which contains several revolving disks in to which wheat is fed. As the seeds travel on the shaft, larger seeds will fall off because they will not be able to stay on the disk. Smaller seeds that made it all the way through will be rejected.

Specific Gravity Separators

Another type of wheat cleaning and separating machine are the Specific gravity separators which select seeds by utilizing their density. In a strong air stream of the gravity separators light seeds are blown to the top of the machine and thrown out.

Many different types of machines can be classified as air separators, but as a mater of fact they all use the same principle: seeds are fed into a strong air flow and the ones which have too low terminal velocity are thrown away. To further classify the remaining wheat by shape and texture of its surface, Velvet Roll Separators are used.

To further clean and select good seeds from the bad ones, there are many more grain cleaning machines to be used: Spiral, Electrostatic, Inclined Draper, Horizontal Disk, Magnetic Selector, Resilience and Color Separators, Vibrators and Bumper Mills, as well as some special machines, not that often used in general wheat cleaning. The ultimate goal is to thoroughly clean the seeds, but at the same time to keep the scrap material as low as possible, downgrading the loss wheat producers have.

Rotary Sieve	Gravity Grading Machine	Color Sorting Machine

During time wheat cleaning machines were developed that improved the quality of seed cleaning, but at the same time minimized the amount of lost good product. We can expect that wheat cleaning machine will continue to further develop seed cleaning technologies in the furute.