The Haofeng intelligent manufacturing three-station negative-pressure thermoforming machine belongs to the Haofeng HF/SE series—its economical, workhorse thermoforming equipment. It is a fully automated, mass-production model custom-designed for shallow-cavity, medium-to-deep-cavity, and non‑perforated general‑purpose blister packaging. The machine employs an industry‑proven integrated three‑station process, automating the entire workflow of heating, negative-pressure forming, cutting, and stacking, while eliminating complex, redundant structures. Its four core advantages are stable operation, simple handling, high cost‑effectiveness, and low maintenance costs. This machine features a proprietary pure negative-pressure forming process with no positive-pressure air‑supplement structure, ensuring gentle, stable forming that minimizes material breakage, produces uniform wall thickness, and maintains consistent product weight. It is compatible with conventional thermoplastic sheets ranging