China Mungbeans Processing Line Supplier

Mungbeans Processing Line

Shijiazhuang Xinlu Technology Co., Ltd. – Technical Overview of Mungbeans Processing Line

Mungbean processing is tailored to produce clean, whole, and polished beans that are primarily used for direct consumption, sprouting, or making traditional foods like noodles and desserts. The processing line from Shijiazhuang Xinlu Technology Co., Ltd. is therefore designed with an emphasis on preserving the physical integrity of the bean, achieving high visual appeal, and ensuring microbiological safety, while efficiently removing field impurities and defective beans.

The first stage is pre-cleaning and destoning. Harvested mungbeans typically contain dust, sand, small stones, plant stems, and other field debris. A combination of vibrating screens with aspiration is used to remove both light and heavy impurities. A specific destoner, which uses vibration and air flow to fluidize the product bed, is highly effective for separating stones that are similar in size to the beans but have a higher density. This step is crucial for protecting downstream equipment and ensuring the final product is free from mineral contaminants.

The cleaned beans then proceed to precision grading and sorting. Mungbeans are often graded by size to ensure uniformity, which is particularly important for even cooking or synchronized sprouting. This is achieved using oscillating sieves with precisely sized round or slotted perforations. Following sizing, the beans pass through an optical sorter. This machine is a key component for quality enhancement. High-resolution cameras scan each bean individually, and based on pre-set color thresholds, the sorter's processing unit identifies and ejects off-color beans, stained beans, damaged beans, and any remaining foreign materials that have survived previous cleaning stages. This electronic eye ensures a consistent, high-quality appearance in the final product.

For certain markets, a polishing stage is incorporated. A gentle polishing machine, often a rotating drum with a soft inner lining or a low-friction spiral polisher, is used to lightly abrade the surface of the beans. This removes any residual dust or slight discoloration on the seed coat, giving the mungbeans a bright, shiny, and more marketable appearance. It is a gentle process designed to enhance luster without causing significant abrasion or breakage.

Given that a significant portion of mungbeans is consumed sprouted or as whole beans, microbial decontamination is a critical optional step. This can be achieved through a steam treatment unit or a short-wave infrared pasteurizer. These systems expose the beans to a precise combination of temperature and time sufficient to significantly reduce microbial load (including pathogens like E. coli and Salmonella) without cooking the bean or compromising its ability to sprout.

The final stage is packaging. The processed mungbeans are conveyed to automated weighing and bagging machines. For the retail market, form-fill-seal machines create plastic bags in various sizes, from 500 grams to 5 kilograms. For bulk sales, the beans are packed into woven polypropylene sacks, typically 25-50 kg. The entire processing line is constructed with food-grade stainless steel at all product contact points, ensuring hygiene and ease of cleaning. The emphasis of the Mungbeans Processing Line from Shijiazhuang Xinlu Technology Co., Ltd. is on gentle handling throughout to minimize splits and broken beans, thereby maximizing the yield and value of the whole, polished final product.