Vacuum freeze dryer

oneVacuum freeze dryerPerformance parameters:

1. Roughness of the box: Ra ≤ 0.4 µ m, the stainless steel plate of the box is made of Taiyuan Iron and Steel to ensure the surface smoothness of the box, and to meet the sterile requirements of small welding deformation and surface flatness; The inner welding plate layer has high strength, long service life, and no leakage during long-term use, ensuring high vacuum stability.

2. Flatness of the board layer: ≤ 1mm/m

3. Ultimate temperature of the board layer: -55 ℃ (unloaded)

4. Maximum temperature of the board layer:+60 ℃ (unloaded)

5. Cooling rate of the board layer (no load):+20~-40 ℃ ＜ 40 minutes (no load)

6. Heating rate of the plate layer (no load): -40~+10 ℃ ＜ 60 minutes (no load)

7. Uniformity of plate temperature: ± 1 ℃ (after no-load equilibrium)

8. Shelf (heating plate): precise temperature control of ± 0.5 ℃ to ± 1 ℃, ensuring uniform drying of materials. It can be heated and pre frozen in one, without the need for additional box relocation

9. Shelf spacing: 110mm (Type 20)

10. Drying oven shape: Round or rectangular with eight sides and four corners all having large circular arc angles (R ≥ 50 mm)

11. Insulation layer: Insulation material that meets environmental requirements (closed cell non fluorinated rubber insulation board)

12. Internal dimensions: Width 505 x Depth 400 x Height 450mm

13. External dimensions: width 760 x depth 1250 x height 1680mm (vertical)

14. Overall weight: approximately 370kg

15. Total installed power: 380V50Hz, 5.5KW

16. Freeze drying disc size: 345 × 495 × 20

17. Board layer: 304 stainless steel

18. Board size: 350 × 300, 2+1 (20 type)

19. Box door: transparent organic glass (observable throughout the entire freeze-drying process)

20. Sealing and door body: Silicone rubber/fluororubber sealing ring, resistant to high and low temperatures, long service life. Large angle observation window+lighting, allowing real-time viewing of material status.

21. Product temperature probe: Pt-100 platinum thermistor (± 0.5 ℃)

22. Thermal oil temperature probe: Pt-100 platinum thermistor (± 0.5 ℃)

IIVacuum freeze dryerPerformance parameters of condenser:

1. Surface smoothness: Ra ≤ 0.4um

2. Low temperature of coil: Low temperature ≤ -85 ℃ (no load)

3. Condenser cooling speed (unloaded):+20~-40 ° C ≤ 15 minutes

4. Condensation surface area: ≥ 0.2 m2

5. Condenser ice capture capacity: ≥ 6 Kg to 12 Kg per batch (depending on the model)

6. Condenser appearance: Fully enclosed vertical cylindrical type, low failure rate, compact structure, strong ice catching ability, easy defrosting and drainage

7. Condenser: 1 set of 304 stainless steel

8. Condensation coil: 1 set of 304 stainless steel

9. Condenser temperature probe: Pt-100 thermistor (± 0.5 ℃) ≥ 1

10. Defrosting method: 1 set of automatic electric heating defrosting

3、 Refrigeration system:

1. Compressor: French Taikang fully enclosed compressor

2. Cooling method: Low temperature cascade

3. Refrigerant: R404/R23 DuPont Green Environmental Protection Type

4. Oil separator: Emerson

5. Acid removal and drying filter: filter element DANFOSS2 set

6. Pressure relay: DANFOSS from Denmark

7. Adopting Danish electronic expansion valve EEV flow rate 1000+level precise adjustment, the superheat is stable, the refrigeration efficiency is improved by 15%+, the wide temperature range does not frost, does not waste cooling capacity, BTHC balanced temperature control system: the refrigeration runs continuously without stopping, dynamically offsets the refrigeration capacity with trace heating, opens the door, releases samples, and automatically and quickly rebalances with variable load, reducing the stabilization time by 50%.

4、 Performance parameters of vacuum system:

1. Maximum vacuum ≤ 1 Pa, ensuring sublimation efficiency, wet rotor shielded pump, clean and pollution-free, using ultra-low temperature special silicone oil, fast conduction speed, and does not solidify in -90 ℃ ultra-low temperature environment.

2. Cold trap: The maximum vacuum cold trap temperature can reach -90 ℃, with strong water capture ability, no ice blockage, and no frost return. Automatic de icing without interrupting production.

3. Extraction speed: Extract from atmospheric pressure to 10Pa<30min

4. Leakage rate: System ≤ 5 × 10-3Pa.m3/s

5. Pipeline: AISI 304 stainless steel

6. Vacuum pump: 4L rotary vane pump (brand can be changed according to customer needs)

7. Vacuum probe: 1 set

5、 Loop system performance parameters:

1. Circulating pump: wet rotor shielded pump

2. Thermal oil: low viscosity silicone oil

3. Electric heating: 0.5KW

4. Expansion vessel: stainless steel 120 * 300

5. Fluid discharge valve: stainless steel ball valve

6. Heating speed: ≥ 1.5 ° C/min

7. Silicone oil viscosity: 5 cSt

6、 Control system:

1. PLC+touch screen (fully automatic/manual), fully automatic operation, can store multiple freeze-drying curves, one click start. Equipped with data recording, alarm, and traceability functions. Can connect to computers for centralized monitoring, data collection, and display of curves, RS-232、RS-485、TCP\\IP、 Supports various human-machine interactions based on MODBUS communication protocol, VNC function, and can set power-off hold mode: stop/cold start/hot start. Reservation function, return to room temperature function, hold function, pause function, parameter backup, program backup and export, and quick program editing.

2. Electrical components and circuits: comply with relevant national electrical standards, easy to maintain and repair.

3. The electrical component labels are complete and clear; The colors of public signal lines, input and output signal lines, and other wires are uniformly grouped and clearly distinguished; The strong and weak electrical parts are clearly distinguished in terms of wire color, and each wire has a wiring number.

4. Software function: Freeze drying (manual, automatic, switchable)

8、 After sales service:

1. The quality assurance period is two years, starting from the date of formal delivery and use;

2. During the warranty period, except for damages caused by natural disasters, abnormal electricity, improper human use, improper maintenance, etc., our company will provide free repairs;

3. Provide users with free consultation on usage and maintenance as needed;

4. Timely provide vulnerable parts and spare parts to users, and provide spare parts for life;

During the operation of the testing chamber, if there is a malfunction in the testing system, our company should respond immediately upon receiving notification and dispatch maintenance engineers to the site within 24 hours (depending on the work dispatch situation) to assist users in equipment testing and maintenance, and achieve normal equipment operation;

Our company will regularly dispatch maintenance engineers to provide customers with free on-site maintenance and repairs;

7. After the expiration date, we will provide lifelong maintenance for the user, but we will charge for maintenance and material costs.