The Dry case is designed according to vacuum vessel of international standard. Case shape is horizontal cylinder. Exterior has multitasked stiffener to strengthen. Test the vacuum air impermeability after welding. Silicone rubber is used to seal between the drying case and the case door. Sight glass with light is set on the door. Hanger rail is set on the drying case to take the products get in and out.
****Structure horizontal cylinder with stiffener Design standard vacuum vessel design
****Material: SUS or Q235A Leakage rate 25Pa×L/S (depend on Clients requirement)
Theory of freeze-drying:
Freeze-dry (brief named Freeze-dry) is a stable process of material dried which will put the material contained with water to freeze to solid first, then make among them of the water sublimate from solid to air condition, removing water to preserve materials
Products at solution stage are frozen through sublimation and desorption, then the solvent reduce to a certain extent, thereby preventing the formation of micro-organisms or chemical reaction between the solute and solvent that products can be preserved for a long time and maintained its nature.
Vacuum freeze-drying method is a liquid → solid → gaseous process. In freeze-drying process, "liquid bridge" between the solution particles has been frozen into "solid bridge". The relative position of particles has been fixed and does not exist surface tension on gas-liquid interface between the two particles. With the continuous distillation of solvent, "solid bridge" continuously decrease, but the the relative position between two particles will not longer change until the "solid bridge" completely disappear.
Main Technical Data
|Can choose steam heating|
|Cooling water qty||≥56m3/h(T≤30ºC/P=0.1-0.15Mpa)|
(According to design standard)
Integral (Horizontal drum-type)
ain Technical Data:
Freeze Drying machine
Production for Batch
Area of the heat shelf
Total Volume Dehydration (Max
Volume of Drying Library
Heating Shelf Space
Heating Shelf Range
Heating Shelf Cooling rate
Heating Shelf heating rate
Condenser Lowest Temperature
System Lowest Pressure
Cooling Water qty: ≤30°C, 0.15-0.2MPa
Compressed air consumption:07-1.0Pa.0.9
Water Consumption: 50°C, 0.10-0.20MPa
Matching Cold Storage
Cooling Water qty: ≤30°C, 0.15-0.2Pa
It drys at low temperature in order to make protein degeneration, micro-organisms loss biological activity.
The material in the volatile components and nutrients heated degeneration of and aromatic ingredients loss a little because of the low-temperature drying.
It is almost impossible for microorganisms and the role to grow so that the material can maintain the original character in the low-temperature drying process.
The volume and shape essentially doesn't change and has a strong water uptake after drying.
Because it has little oxygen under the vacuum drying, the vulnerable materials have been protected.
It can remove 95-99.5 percent of water, and the retention period lasts longer.
Q: What price terms you offer?
A: We can offer FOB, FCA, CFR, CIF, EXW and other price terms based on your request.
Q: What payment terms you take?
A: TT, LC, other terms are also workable.
Q: Will you help with installation and stuff training?
A: Yes, we can send our engineers to your place to guide the installation and train your workers if you need, but the buyer should bear our technician's round tickets, accomodation, food and subsidiary USD100/day.
Q: How can I visit your factory?
A: Our factory is located in Ruian city Zhejiang Province. Just let us know your scheduel in advance and we will arrange everything for you!
Any other doubts about our machine, please feel easy to contact with us.