Parameter Precision in Legume Preservation: optimizing the Vacuum Shaping Machine for Varied Grain Morphologies
Parameter Precision in Legume Preservation: Optimizing the Vacuum Shaping Machine for Varied Grain Morphologies
Published on: January 19, 2026 | By Jialong Engineering Dept.
In the distribution of high-quality agricultural products, one size does not fit all. The application of a vacuum shaping machine for legumes is a nuanced engineering challenge that requires specific parameter adjustments based on the physical characteristics of the bean. Standard food packaging equipment often applies uniform pressure, leading to package failure. However, a specialized legume packaging machine must account for the difference between round grains (like red/mung beans) and oval grains (like soybeans/black beans) to ensure seal integrity and shaping stability.
Our R&D data indicates that particle friction significantly impacts vacuum success. For round grains such as red and mung beans, a vacuum shaping machine operates optimally at a higher vacuum degree of 0.08MPa with a 3-second pressure holding time. However, oval grains like soybeans and black beans have different settling properties. Using the same parameters leads to bag breakage or poor forming. A sophisticated automatic vacuum packing machine must allow adjustments to 0.06MPa with a longer 5-second holding time. As a packaging machine manufacturer, we program these material-specific algorithms into our legume packaging machine PLCs to prevent loss.
The vacuum shaping machine is only half the equation; material science is the other. New nano-coated films used in food packaging equipment have reduced oxygen transmission rates (OTR) from 5cc/(m²·24h) to 1.2cc/(m²·24h). Our automatic vacuum packing machine series employs precise heat-sealing technology to handle these advanced films without compromising their barrier properties. Whether using traditional PA films or new compostable PLA materials, a capable legume packaging machine must deliver a hermetic seal. As a leading packaging machine manufacturer, we ensure our systems are compatible with next-gen materials.
The Future of Automated Shaping
With automated lines now capable of 12,000 packs per hour, precision control is essential. Jialong's automatic vacuum packing machine offers the throughput required for industrial scale while maintaining the flexibility for different bean types. We are a packaging machine manufacturer pushing the boundaries of what a vacuum shaping machine can do.
View Machine ParametersConclusion: Technical Excellence for Product Integrity
From pressure differentials to material compatibility, the vacuum shaping machine is a complex system. Investing in a scientifically designed legume packaging machine ensures that your product is protected by engineering, not just plastic. As a trusted packaging machine manufacturer, our automatic vacuum packing machine represents the pinnacle of food packaging equipment.
Consult Our Technical Team
Need help calibrating your line for soybeans vs. mung beans? Our engineers are experts in food packaging equipment optimization. Contact us to find the right vacuum shaping machine.
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