When purchasing a three-side seal bag making machine, it is necessary to systematically evaluate the following five core elements:
First, accurately match the production capacity requirements. Single-station models are suitable for small and medium-scale production (40-80 bags/minute), while multi-station high-speed models can meet large-volume production needs (over 150 bags/minute). It is recommended to select the corresponding configuration according to the actual order quantity.
Second, comprehensively test material adaptability. Focus on verifying the equipment's forming accuracy and film-running stability when processing high-barrier materials such as composite films (e.g., PET/PE) and aluminized films, which is particularly important for food and pharmaceutical packaging.
Third, strictly inspect the performance of the heat-sealing system. High-quality equipment is usually equipped with a PID intelligent temperature control module, which can achieve precise temperature control of ±2℃ to ensure uniform sealing strength.
Fourth, comprehensively evaluate the automated configuration. High-end models integrate intelligent modules such as automatic deviation correction (CCD visual inspection), constant tension control, and automatic waste recycling, which can significantly improve production efficiency and product qualification rate.
Fifth, focus on examining the after-sales service system. Priority should be given to suppliers that can provide professional installation and commissioning, regular maintenance, and systematic training for operators (including equipment prin
