LGJ-20G Vacuum Freeze Drier

Vacuum Freeze Drier

Model No.: LGJ-20G

Features

1.Equipped with LINUX software control system, and the freeze-drying process is automatically controlled by programmable controller, which can be switched to manual operation in real time to realize the whole parameter control of the freeze-drying process. In the operation process, the system automatically monitors, detects and records the data. Record process ≥ 100, with each process ≥ 36, with 3 levels limited management. Multiple fixed or customized programs can be recorded, and monitoring, testing and maintenance can be reached through the standard remote system with record trace function.

2.Continuously record real-time data, drawing freeze-dried graphs, store data each of one minute (adjustable). The unit is equipped with USB port for data download and edition.

3.CE and NEMA certificated.

4.The system is equipped with a variety of sensors, displays the real-time record of vacuum level, cold trap temperature, material temperature, shelf temperature. A active protection system will automatically turned on while the unit receiving the abnormal temperature and pressure from the unit, which the abnormal information is caused by operation error alarm.

5.At the end of the automatic operation of freeze-drying or in the process of vacuum pressure loss, the equipment alarm and automatic operation to protect the material. The equipment is equipped with the function of vacuum pump maintenance massage sending.

6.Freeze-drying in situ, unique equipment design structure, can be applied to all laboratory materials freeze-drying experiment, freeze-drying chamber inside the corner, surface roughness, shelf flatness, the chamber inside the material meet pharmaceutical standards, smooth corrosion resistance and easy to clean.

7.The freeze-drying automatic control system adopts PID control for both heating and cooling during the freeze-drying process, which can automatically achieve repeated pre-freezing, quick freezing and slow freezing of materials.

8.The freeze-drying automatic control system adopts PID control in both heating and cooling during the freeze-drying process, which can automatically realize the repeated prefreezing, quick freezing and slow freezing of materials. The special mechanical process is manufactured to ensure the surface of the shelf is smooth and the internal circulation channel is the same, so that the intermediate medium (low viscosity silicone oil, 25℃, 5cSt) is evenly and steadily circulated in the shelf, the temperature is uniform, and the cold heat conduction is good. Improve freeze-drying efficiency.

9.The external cold trap improves the water catching capacity of the equipment, reduces the interference of the cold trap temperature on the material during the freeze-drying process, ensures the consistency of the material freeze-drying quality and the stability of the experimental data, improves the freeze-drying efficiency and reduces the energy loss.

10.Adopts imported compressor double stack refrigeration technology, international standard green refrigerant, rapid refrigeration, low cold trap temperature, strong water capture capacity.

11.Equipped with auto-defrosting function.

12.Automatic pressure aeration system: reduce sample secondary contamination.

Optional Functions

1.It is optional to prepare equipment before freeze-drying and close the butterfly valve in the pipeline between the freeze-drying chamber and the water catcher after the freeze-drying. This ensures that materials can be loaded and unloaded in a clean environment and products can be pre-frozen. After freeze-drying, the freeze-drying of materials can be measured and controlled to determine whether the freeze-drying of materials is complete (optional), and the freeze-drying efficiency of equipment can be improved.

2.UPS (uninterruptible power supply).

3.Visual alarm (indicator light alarm) is optional.

4.Optional quantitative backfill nitrogen or inert gas.

5.Optional plug mode: manual or electric, electric cap torque can be adjusted, automatic stop, relative to hydraulic cap system to eliminate material pollution hazards.

6.Clean room installation solutions.

7.The optional built-in vacuum adjustment function overcomes the shortcomings of material pollution and large vacuum fluctuation caused by aerated vacuum adjustment, and automatically and accurately controls the whole vacuum degree (5Pa ~ 80Pa, ±1Pa).

8.The eutectic point test function is selected to optimize the sublimation process of samples.

9.Optional upper computer control.

10.Optional freeze-dried end point test.

11.Optional: 12 multi-manifold bottle hanging device, freeze-drying bottle (nightshade bottle and wide mouth bottle), 12 ampoule tube freeze-drying frame, ampoule tube sealer, Xiling bottle capping machine, imported vacuum pump, high-speed vacuum pump oil.

Specifications

Model Name: Vacuum Freeze Drier

Model No.: LGJ-20G

Effective shelf area: 0.2㎡

Standard cold trap temperature: ≤-83℃ (No-load, environment ≤30℃)

Limitation cold trap temperature: ≤-86℃ (No-load, environment ≤25℃)

Standard vacuum level: ≤5Pa (No-load)

Limitation vacuum level: ≤1Pa (No-load)

Cooling rate of shelf: less than 60 mins from 20℃ to -40℃ (No-load)

Cooling rate of cold trap: less than 20 mins from 20℃ to -40℃ (No-load)

Vacuum pumping rate: standard atmospheric pressure down to 5Pa ≤ 10 mins (no load)

Maximum water capture: 8KG

Shelf size (LxW): 335mm×300mm

Temperature range of the material shelf: -50℃ to +70℃

Exterior dimensions (W×D×H): 700mm×800mm×1550mm

Power supply: AC 220V/230V 50Hz (Three-phase five-wire system)

Power: 3300W

Temperature to place: ≤30℃