Vibratory Sifter for Cereals

Vibratory sifter for cereals is used for the removal of impurities, grading, and sifting of cereal raw materials. It uses a vibrating motor to drive the screen to vibrate, causing the material to jump forward on the screen surface, thereby achieving the separation of materials of different particle sizes and the removal of impurities. This equipment is widely used in the primary and deep processing of cereals such as wheat, rice, corn, oats, buckwheat, and sorghum to ensure the cleanliness of raw materials and the uniformity of product particle size.

When screening cereal particles (such as whole grains, broken rice, corn grits, or barley grains), the vibratory sifter uses a coarse to medium mesh screen, usually ranging from 2 mesh (about 10 mm) to 20 mesh (about 0.85 mm). The multi-layer sieve can separate multiple particle size fractions at the same time, for example, separating whole grains, broken grains, and dust at one time. Its material-friendly vibration mode ensures that even fragile grains can be sieved gently to prevent breakage. The screen material is usually made of stainless steel (304 or 316L) to ensure food safety and corrosion resistance, while the screen frame may be equipped with rubber balls or ultrasonic systems to prevent clogging, especially when processing high-oil or sticky grains such as oats and millet.

Vibratory Sifter for Cereals Selection

Vibratory Sifter for Cereals In the screening of grain particles, linear vibrating screens and rotary vibrating screens are two common structural types, each with its own advantages. Linear vibrating screens are suitable for processing large batches of large grains, such as whole wheat, corn kernels, broken rice, etc., and are often equipped with coarser screens such as 2 mesh (about 10mm), 4 mesh (about 5mm), and 8 mesh (about 2.36mm). They can effectively remove large impurities such as stones, straw, and bag skins, and perform preliminary classification according to particle size. It has strong processing capacity and is suitable for high-production line operations. Medium-sized equipment can screen 2-10 tons per hour, and large equipment can reach more than 20 tons/hour. Linear vibrating screens have simple structures and easy maintenance, and are suitable for continuous working scenarios.

The rotary vibrating screen (also known as the circular vibrating screen) is more suitable for fine screening of fine particles and powdered grain materials, such as corn flour, rice flour, grain powder, and grain flour. The rotary vibrating screen can be installed with 1-3 layers of screens to achieve 2-4 levels of grading. Common mesh sizes include 40 mesh (about 400μm), 60 mesh (about 250μm), 80 mesh (about 180μm) to 120 mesh (about 125μm) or even finer. It is mainly used to remove lumps, screen out impurities, and control the particle size of powders. The rotary vibrating screen has a compact design and is easy to change the mesh. It is suitable for multi-variety and small batch switching scenarios. The processing capacity depends on the mesh size and material, generally 100-800 kg/hour, and large equipment can reach 1-2 tons/hour.

Grain vibration screening can use linear vibrating screens or rotary vibrating screens according to different material forms and process requirements, and reasonably configure the mesh size and number of layers of the screen to achieve full process control from raw material impurity removal, whole grain grading to powder fine screening. Both devices can be made of 304 or 316L stainless steel, meet food processing hygiene standards, and can be equipped with automatic screen cleaning, dust removal system and intelligent control module to improve overall screening efficiency and product quality. They are widely used in grain processing plants, flour mills, grain deep processing enterprises and other industries.

For corn flour, wheat flour, rice flour or instant porridge base, the vibrating screen is equipped with fine mesh screens, ranging from 40 mesh (about 400 microns) to 200 mesh (about 75 microns) according to the required fineness. These fine mesh screens can effectively remove lumps, oversized particles and potential foreign matter to ensure product consistency and hygiene. The screening capacity depends on the mesh size, screen surface area and material flow characteristics. For example, a single-layer vibrating screen with a screen diameter of 1000 mm can usually process 100-500 kg of grain powder per hour, while larger industrial-grade screens can process up to several tons of grain powder per hour in continuous operation. The unit is easy to clean and can be assembled without tools, making it ideal for multi-batch production and food-grade environments.