The automatic three/four-station positive and negative pressure thermoforming machine integrates heating, forming, cutting, and stacking for efficient continuous production. It combines positive and negative pressure forming to achieve precise shapes, excellent details, and uniform wall thickness. Servo-driven systems provide fast, accurate, and stable operation. Advanced PLC control enables easy parameter adjustment and reliable automation. The machine is suitable for PP, PET, PS, PLA, and other thermoplastic sheets. High-efficiency heating, precise temperature control, automatic feeding, and intelligent stacking improve productivity, product consistency, and overall production efficiency.