Haofeng 3-station negative-pressure thermoforming machine (HF/SE series three-station negative pressure) is an economical and stable main model launched by Haofeng (Tianjin) intelligent manufacturing for standard shallow/mid-depth cavity, non-perforated, general-purpose blister packaging. The core is a three-station integration of heating → negative-pressure forming → cutting → stacking, featuring stability and reliability, simple operation, high cost performance, and low maintenance costs. It is compatible with conventional thermoplastic sheets such as PP, PET, PS, and PLA, and is mainly used for food, daily necessities, and electronic general-purpose packaging.