The Air Screen Cleaner is a highly efficient grain cleaning machine widely used in agricultural and seed processing industries. It combines the principles of screening and air separation to remove impurities such as dust, chaff, broken seeds, and lightweight materials from grains like wheat, rice, corn, and beans.
This machine features a vibrating screen system with multiple layers of sieves that separate materials based on size. Oversized and undersized particles are effectively removed through this screening process. At the same time, a powerful air suction system (aspirator) removes light impurities by airflow, ensuring only clean and heavy kernels remain.
Made with durable steel construction, the Air Screen Cleaner offers stable performance and long service life. It is easy to operate and maintain, with adjustable air volume and screen settings to handle different types of grains and contamination levels. The compact design and customizable screen sizes make it suitable for small to medium-scale operations.
This machine is ideal for pre-cleaning and fine cleaning stages, ensuring high purity standards for storage, packaging, or further processing. It improves grain quality, increases market value, and enhances food safety by efficiently removing contaminants.
AIR SCREEN CLEANER WORKING PRINCIPLE
The Air Screen Cleaner operates on a combination of screening and air separation principles to effectively remove impurities from grain and seed materials. Its working process involves several key stages that ensure thorough cleaning and grading of the product.
First, raw grain is fed into the machine through a feeding hopper. It is then evenly distributed across the width of the top screen by a vibrating feeder or uniform distribution device. The grain passes through a series of vibrating screens with different mesh sizes, which separate the material based on particle size. Larger impurities such as straw, stones, and clumps remain on the top screen, while fine impurities like dust and sand fall through the lower layers. Only kernels within the desired size range pass through all screens and move to the next stage.
After mechanical screening, the partially cleaned grain enters the aspiration system. This is where the air separation principle is applied. A powerful fan creates a vertical airflow that lifts light impurities such as husk, dust, and chaff out of the grain flow. These lighter materials are collected in a separate chamber or removed through an exhaust system. The clean, heavy grain falls down into a collection bin or conveyor for further processing or packaging.
Some advanced air screen cleaners also include adjustable air volume and angle control, which improves cleaning precision for different crop types. The working principle is simple yet highly effective, making the Air Screen Cleaner essential in seed cleaning plants, grain storage facilities, and agricultural processing centers.
VIBRATORY AIR SCREEN CLEANER DIAGRAM
A vibratory air screen cleaner combines vibration and air separation to clean grains efficiently. Its structure includes several key components: a feed hopper, vibrating screens, air suction system, fan, and dust collection unit. The process begins when raw grain enters through the hopper and is evenly spread onto a vibrating screen deck. These screens are stacked in layers with different mesh sizes to separate large debris, broken seeds, and dust based on particle size.
As the material moves across the vibrating screens, heavier impurities are sorted out, while smaller particles fall through the sieves. Simultaneously, a powerful aspiration fan creates vertical airflow. This airflow lifts lighter impurities—like husks, dust, and chaff—away from the clean grain. These are directed into a dust collector or cyclone system.
The clean grain, free from size-based and lightweight impurities, exits through a discharge chute. The entire process is continuous and adjustable, offering high efficiency for grain cleaning in farms, seed processing plants, or grain storage facilities.
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