The value of automatic packaging machines in industrial production is reflected in multiple dimensions, including ensuring packaging accuracy, improving production efficiency, and reducing labor costs.
Automatic packaging machines are widely used in industries such as fertilizer, chemical, food, feed, and pharmaceuticals. In fertilizer production, they are suitable for bulk packaging of compound fertilizers, blended fertilizers, BB fertilizers, organic fertilizers, urea, and other fertilizers. In the chemical industry, they are suitable for packaging chemical raw materials, additives, pesticides, etc. In the food industry, they are suitable for packaging rice, beans, milk powder, etc. In the feed industry, they are suitable for packaging feed and feed additives.
The raw materials that automatic packaging machines can process include: granular materials (compound fertilizer, urea, plastic granules, rice, beans, etc.); and powdery materials (organic fertilizer powder, milk powder, feed powder, metal powder, pesticide powder, etc.).
The automatic packaging machine operates on a collaborative mechanism of "PLC program control + electronic weighing feedback + pneumatic execution." Its workflow is as follows: After starting the main unit, if the material in the weighing hopper has not reached the specified value, the photoelectric detection switch closes. After a delay, the oscillator starts vibrating, and the baffle opens to feed material into the scale. When the material feeding approaches the specified value, the photoelectric switch closes, the baffle closes, and small-scale vibration feeding continues. Once the hopper is full, the vibration stops. If three conditions are met simultaneously—full hopper, bag clamping signal, and no material being fed into another hopper—then that hopper opens to discharge material. Two seconds after discharge, the photoelectric switch closes again, and after a delay, the next weighing cycle begins. After the material reaches the specified weight, it enters the packaging bag and is conveyed to the sealing machine via a conveyor belt.

The complete packaging process is as follows: Finished material → Bucket elevator → Storage silo → Automatic feeding → Automatic weighing → Automatic filling → Automatic sealing → Finished product conveying → Palletizing and warehousing. The equipment can seamlessly integrate with upstream granulation, drying, cooling, and screening equipment. Only 1-2 people are needed to monitor and assist with the entire packaging line.