Freeze Dryer is a PLC and PID microprocessor controlled and designed to process low temperature lyophilization in small scale production processes. Equipped with 2 Kg water absorption capacity condenser with shelf temperature ranges from ‐50℃ to 60℃. Gas circuits ensure strong water capturing and faster freeze drying. Embedded with PLC and PID control systems. Digital display indicates lyophilized curve and history curve. It can store 20 freeze-dry process programs, and each program can have 40 temperature settings. LCD display for shelf temperature and cold trap curve which enables modification of the parameters during the operation.