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EspañolIf you are a buyer or operator of a vest bag making machine, you understand that the machine's lifespan directly impacts production efficiency and long-term operating costs. Based on 15 years of on-site maintenance experience and data from the International Packaging Machinery Manufacturers Association, we have summarized three key elements for extending machine life: adhering to standardized daily operations, performing targeted preventive maintenance, and scientifically replacing parts. There are no fancy theories here—only practical and effective advice.
The foundation of long-term machine operation is standardized operation
Most machine wear is not due to natural aging, but rather to improper, non-standard operation. Dexiang's R&D team conducted a comparative test, and the results were astonishing: machines operated strictly according to the "three good, four proficient" standards showed 47% less wear on key components such as servo motors and heat sealing blades compared to machines operated haphazardly. In practical production, this means following specific operating procedures. For example, when starting an automatic vest bag making machine, the heat sealing system must be preheated for 15 to 20 minutes, and the conveyor belt tension must be checked. Especially when processing PE/PP materials, skipping the preheating step will overload the heat sealing blade, significantly accelerating wear.
Furthermore, correct material loading is crucial. When installing film rolls, ensure that the center line of the roll is perfectly aligned with the machine's feed shaft. Otherwise, the guide rollers will be subjected to uneven stress and will deform over time. For small and medium-sized enterprises that frequently switch production tasks, Dexiang's customized multi-functional vest bag making machine is a revolutionary solution. Its modular operating interface can be adjusted according to the operator's experience level. Novice operators can use the one-button start mode—with core parameters locked, eliminating worries about misoperation. Experienced operators can flexibly switch bag types through manual adjustments. A food packaging company in Guangdong told us that after using Dexiang's customized machine, their monthly equipment failure rate dropped from 8 times to 1 time, and the lifespan of their heat sealing system increased from 18 months to 32 months. This is undoubtedly a huge improvement.
Targeted maintenance is key—avoid over-maintenance
Preventive maintenance doesn't mean over-maintaining every component, understand? It means performing targeted maintenance based on the characteristics of each component. Dexiang's technical team maintains the machine by dividing it into three core modules: the transmission system, the heat sealing system, and the electrical control system.
First is the transmission system – the "power heart" of the machine. Data shows that 35% of machine failures are caused by insufficient lubrication or improper tension adjustment. Our recommendation: use Dexiang's specified food-grade lubricant. Compared to ordinary lubricants, it has higher temperature resistance and reduces friction by 30%. Next are the heat sealing blades, which are wear parts. Our comparative tests show that regular temperature calibration can double the lifespan of the blades. Fortunately, Dexiang's vest bag making machine is equipped with an intelligent temperature calibration system. With just one automatic calibration per month, the temperature error can be kept within ±2℃. When the blades become dull, sharpen them immediately – do not try to compensate by increasing the heat sealing pressure. Doing so will only overload the heating element and ultimately lead to more problems. Finally, there's the electrical control system: the PLC controller and sensors. These components are very sensitive to dust and moisture. If you are in a humid production environment in South China, please install Dexiang's custom-made dustproof and moisture-proof cover for the electrical cabinet.
Scientific Parts Replacement
Using worn or expired parts is a major cause of "chain failures" in vest bag making machines. Dexiang's technical manual clearly specifies the replacement cycle for key components: conveyor belts should be replaced every 12-18 months, heat sealing bars every 8-10 months, and bearings every 24 months. Taking bearings as an example, prolonged use can cause abnormal machine vibration, affecting machine operation. This affects bag making accuracy and may even damage the servo motor. A packaging company in Zhejiang used bearings for 30 months to save money. The result? They had to replace the bearings and servo motors, and the repair cost was five times the normal replacement cost. This was a painful lesson illustrating the importance of regular maintenance.
The lifespan of a machine depends not only on how it is used but also on good after-sales service. Dexiang will develop customized maintenance plans based on your company's production scale and operating environment. Please visit the Dexiang product page to learn more about our vest bag making machines.
