Freeze-drying system offers the best method by which moisture-bearing substances frozen in advance become dry in the vacuum owing to vaporizing away the moisture. The substances frozen can be well-preserved for a long time and returned to their former state once being watered without losing their biochemical properties. The Freeze-drying technology is especially ideal for those bio-products sensitive to antibiotic, vaccines, blood products, enzymes and hormones. This system is ideal for freezing tests and little production in labs. The series can be cataloged as: Ordinary model, Gland model, Branch Manifold Ordinary model, Branch Manifold Gland model.