The MDx-12 fully automated DNA methylation integrated machine utilizes a one-stop automated operation for nucleic acid purification and bisulfite conversion, effectively reducing operational errors and improving work efficiency. It is widely used in molecular diagnostics, clinical testing, disease prevention and control, and molecular biology research. This device can efficiently process sample types such as blood, urine, swabs, and feces, isolating and purifying methylated DNA while completing bisulfite conversion. The resulting products can be directly used for downstream methylation detection.