Low Consumption High Efficiency 50Kg Fruit And Vegetable Vacuum
Freeze Dryer Machine
Product Application:
Freeze-drying is a low temperature dehydration process that
involves freezing the product, lowering pressure,removing of ice
(moisture) by sublimation, transitions of the substance from solid
state to vapor without passing through the intermediate liguid
phase. Freeze drying results in a high qualitative product because
the entire process is performed at low temperature and pressure by
applying vacuum, below triple point. The original shape of the
product is maintained and quality of the rehydrated product is
excellent.
It is composed of a refrigeration system, a vacuum system, a
heating system, and an electrical instrument control system. The
main components are drying box, water trap (cold trap),
refrigeration unit, vacuum pump, heating/cooling device, etc.
The price of freeze-dried food in the international market is 4-6
times that of hot air-dried food, and 7-8 times that of
quick-frozen food. It has an irreplaceable position in special
occasions such as mountaineering, navigation, exploration, and
military field operations, and is also the main food for astronauts
in space.
Brief description of freeze-drying process:
(1) Pretreatment process
For different materials to be dried, the pretreatment methods are
different. According to the characteristics of raw materials,
corresponding processing methods are adopted
(2) Pre-freezing process
There are two methods of pre-freezing: vacuuming, self-evaporative
freezing and freezing with quick-freezing equipment.
(3) Sublimation drying
Sublimation drying is carried out in a vacuum device, so it is very
important to maintain a suitable vacuum during the sublimation
drying process.
(4) Post-treatment process
Vacuum freeze-dried food is generally porous and loose, with a
large surface area, easy to absorb moisture.
Advantages of Vacuum Freeze Drying Machine:
There are four stages in the complete freeze drying process:
pretreatment, freezing, primary drying, and secondary drying.
Freeze-drying causes less damage to the substance than other
dehydration methods using higher temperatures. Nutrient factors
that are sensitive to heat are lost less in the process as compared
to the processes incorporating heat treatment for drying purposes.
Freeze-drying does not usually cause shrinkage or toughening of the
material being dried. In addition, flavours, smells, and
nutritional content generally remain unchanged, making the process
popular for preserving food.
Technical Specifications:
| Model | NT-F5M | NT-F10M | NT-F20M | NT-F30M |
| Control Type | PLC+ human-computer interface | PLC+ human-computer interface | PLC+ human-computer interface | PLC+ human-computer interface |
| Working | Quick freezing | Quick freezing | Quick freezing | Quick freezing |
| Material | 304 Stainless steel | 304 Stainless steel | 304 Stainless steel | 304 Stainless steel |
| Drying area (m²) | 5 | 10 | 20 | 30 |
| Loading capacity(kg) | 50 | 100 | 200 | 300 |
| External dimensions(m) | 3.8x1.2x1.9 | 5.8x1.7x2 | 7x1.7x2 | 9x1.7x2 |
| Tray quantity | 16 | 24 | 48 | 72 |
| Shelf temperature(℃) | -55~120 | -55~120 | -55~120 | -55~120 |
| Shelf medium | Low temperature silicone oil | Low temperature silicone oil | Low temperature silicone oil | Low temperature silicone oil |
| Prefreeze temperature(℃) | -30~-60 | -30~-60 | -30~-60 | -30~-60 |
| Cold trap temperature(℃) | -50~-80 | -50~-80 | -50~-80 | -50~-80 |
| Vacuum pump | Rotary vane pump | Rotary vane pump | Combined pump set | Combined pump set |
| Working vacuum | ≤130Pa | ≤130Pa | ≤130Pa | ≤130Pa |
| Defrosting mode | Hot water spray | Hot water spray | Hot water spray | Hot water spray |
| Cooling Power(kw) | 9 | 18 | 25 | 34 |
| Heating Power(kw) | 6 | 12 | 24 | 36 |
| Total Power(kw) | 18 | 34 | 56 | 83 |
| Working Temperature | ≤40℃ | ≤40℃ | ≤40℃ | ≤40℃ |
Payment terms:
T/T, L/C, Western Union, MoneyGram or negotiable.
Packing and Shipping:
1. Plastic film as inner packaging
2. Formal export packaging or packaging according to customer
requirements
3. Shipping by sea, land or rail.
Choose the best shipping method according to the actual situation
or customer requirements
FAQ
Q: Can you supply OEM or ODM?
A: Of course we can supply it. We are manufacturer, we can
manufacture the equipments according to your exactly requirements.
Q: Can you help design the entire process line?
A: Of course, our experienced engineers and technicians can help
you arrange the layout and installation of the entire production
line according to the actual situation such as your workshop
layout.
Q: How long is your production cycle?
A: Usually 7-25 working days, the exactly delivery time is
depending on the quantity and your ordering time.
Q: How is the payment?
A: T/T, L/C or other formal import and export payment method.
Q: How long is your warranty period?
A: One year after commissioning is completed.
Q: How to install?
A: We can currently provide online guidance services by experienced
engineers. If you need on-site installation, we can apply to the
government for installation abroad and calculate all the cost to
customers.
Q: Will you help us if we have any problems in future production?
A: It is necessary, you can contact me through mobile phone,
WhatsApp, etc. We are always at your service. We will help resolve
your issue as soon as possible
