Food Production Vegetable and Fruits Freeze Dryer

            Introduction for Freeze drying technology:
Freeze-drying, also known as lyophilisation, or cryodesiccation, is a dehydration process typically used to preserve a perishable material or make the material more convenient for transport. Freeze-drying works by freezing the material and then reducing the surrounding pressure to allow the frozen water in the material to sublimate directly from the solid phase to the gas phase.
The freeze drying process is to freeze the materials firstly, and after frozen the products will be load into the vacuum drying tank which will bring the vacuum environment for the ice to sublimate to vapor, and with the condenser inside the tank condense the vapor to ice on the surface of the coils, the products will be dehydrated.
 
Working principle of Freeze drying
The technology of Vacuum freeze drying is mainly utilizing the principle that water will sublimation directly from ice to vapor when it is in some specific vacuum environment. The freeze drying process is to freeze the materials firstly, and after frozen the products will be load into the vacuum drying tank which will bring the vacuum environment for the ice to sublimate to vapor, and with the condenser inside the tank condense the vapor to ice on the surface of the coils, the products will be dehydrated.

Parameters

Model	KFD-50	KFD-100
Capacity (Kg/Batch)	500	1000
Shelf Area (㎡)	52	102
Shelf Size (Mm)	3300*600	5000*600
Shelf Quantity (Layer)	13+1	17+1
Shelf Quantity (Piece)	28	36
Space Between（Mm）	95
Shelf Temperature (℃)	room to 120
Water Catcher Temper (℃)	-65±5
Max Catch Water（Kg）	750	1500
Ultimate Vacuum （Pa）	5
Electricity（Kw）	168	232
Weight（Kg）	12500	20000

Main components of freeze drying system: 
1.FD drying system (FD drying tank)
2.Heating system
3.Cold trap condensing and defrosting system
4.Vacuum system
5.Freezing system (freezer)
6.Refrigeration system
7.Material handling system
8.Control system