In grain and bean cleaning equipment, the core function of the gravity machine is to use the difference in specific gravity between materials and impurities to achieve precise separation. It is a key equipment for improving the purity and quality of grains and beans.
The core working principle of the specific gravity machine is to utilize the difference in specific gravity of different materials (or materials and impurities) and combine the combined effects of airflow and vibration to achieve stratification and separation of materials.
Gravity Separator is a specialized equipment designed to separate particles based on differences in their specific gravity, density, and size through the action of gravity and fluid dynamics. The equipment features a carefully engineered separation deck or table, often inclined and vibrating, which creates a fluidized bed allowing heavier particles to settle and lighter particles to be washed away. Adjustable parameters such as deck slope, vibration frequency, and fluid flow rate provide flexibility to optimize separation efficiency for different types of materials. The Gravity Separator is robustly built with corrosion-resistant materials, ensuring durability and long service life even under harsh working conditions. Its modular design facilitates easy installation, operation, and maintenance, reducing downtime and operational costs. Additionally, the equipment is capable of handling a wide range of feed sizes and capacities, making it versatile for both small-scale and large-scale operations. With low energy consumption and minimal maintenance requirements, the Gravity Separator stands out as a reliable and efficient choice for improving product quality.
1. Efficiently Remove Specific Impurities
Gravity machines excel at separating impurities similar in size to grains and legumes but with different specific gravities, which is difficult for conventional screening equipment to achieve.
Separating light impurities: dust, grass seeds, broken straw, insect-infested grains, and shriveled grains. These impurities have a low specific gravity and are lifted and separated by the airflow within the machine.
Separating heavy impurities: gravel, lumps of soil, and metal debris. These impurities have a high specific gravity and quickly settle on the machine surface and are discharged through a specific outlet.
2. Optimizing Material Quality and Grade
Gravity machines not only remove impurities but also screen the quality of grains and legumes themselves, paving the way for graded sales or further processing.
Screening for fullness: Within a batch, full, dense grains are separated from shriveled, underdeveloped grains.
Grading: Materials are sorted into different grades based on specific gravity to meet the differentiated quality requirements of different customers (such as food factories, feed mills, and retail markets). 3. Ensure Smooth 3、3、Subsequent Processing
In the advanced processing of grains and legumes, the effectiveness of gravity machine cleaning directly impacts the efficiency of subsequent steps and the quality of the finished product.
Protecting Processing Equipment: Preemptively removing heavy impurities such as sand, gravel, and metal prevents them from entering grinding and crushing equipment, causing wear or malfunction.
Improving Finished Product Quality: Reducing the influx of impurities and inferior particles ensures a better taste and higher purity for subsequent finished products such as flour, starch, and soy products.
The specific gravity machine has a wide range of applications and can be used in the grain and cereal processing industry to improve grain purity and quality.
Grain cleaning: Removes impurities from grains like wheat, rice, corn, and sorghum, including light, hollow kernels, grass seeds, and dust, as well as heavy, gravel, dirt, and metal debris.
Quality grading: Grains are graded based on their plumpness and density. For example, wheat is classified into high-quality and low-quality wheat to meet different processing needs (e.g., high-quality wheat for high-end flour and low-quality wheat for feed).
Pretreatment: Before grains enter further processing such as grinding and milling, they are cleaned of impurities using a gravity machine to prevent damage to subsequent equipment and ensure the purity of the finished product.
Bean cleaning and grading: Processes soybeans, mung beans, red beans, kidney beans, etc., separating empty shells, insect-damaged beans, and moldy beans. Grading is also performed based on kernel plumpness to enhance product value.
Oilseed pretreatment: Removes stones, dirt, and shrunken seeds from peanuts, rapeseed, and sunflower seeds before oil extraction to minimize oil yield and quality and reduce wear on oil extraction equipment.
If you need a reliable gravimeter with fast delivery, our Tobo gravity separator are the ideal choice. If you’re interested, please contact us now!
Post time: Oct-28-2025
