Vacuum Freeze Dryer DGJ-20E Food Grade Freeze Dryer

The freeze dryer DGJ-20E supplied by Guangzhou Jincheng Scientific Instrument Co., Ltd. features a cold trap ultimate temperature (no load): ≤-80°C, vacuum degree (no load): ≤10 Pa, and maximum continuous water capture capacity: 8Kg.

Freeze Dryer Features:

The shelves adopt a unique patented structure (Patent No.: 202020128245.3) with fluid heat transfer circulation technology, achieving in-situ refrigeration or heating functions, ensuring uniform shelf temperature, strong controllability, and excellent cold/heat conduction;

Independently developed PLC control system (Software Copyright No.: 2020SR1525084) paired with a 7-inch touchscreen, enabling fully automatic or semi-automatic control of the freeze-drying sublimation process; real-time display and recording of vacuum degree, cold trap temperature, product temperature, and shelf temperature, forming freeze-drying curves, storing data every minute, continuously recording material and equipment status data, supporting offline data browsing, analysis, printing, and storage, equipped with a USB communication interface;

Unique patented structure with separate design of the drying chamber and water capture chamber (Patent No.: 202020128266.5), avoiding the impact of water capture chamber temperature on product sublimation, accelerating sublimation rate and increasing water capture capacity, meeting the freeze-drying process exploration needs of the biopharmaceutical industry, with the resulting freeze-drying process directly scalable for production;

Vacuum system protection function, real-time monitoring of vacuum degree, automatically stopping the vacuum pump and introducing gas to maintain pressure balance in the material chamber if the vacuum degree does not reach the set value within the set time, better protecting sample safety;

Dual-cascade ultra-low temperature refrigeration technology. Uses European original fully enclosed compressor units and international standard green refrigerants, providing rapid cooling, with low vibration, low noise, and stable operation of the entire refrigeration system;

The refrigeration system features compressor secondary start delay protection, pressure overload protection, and thermal overload protection devices;

Unique silicone oil circulation heating device (Patent No.: 202020123674.1), providing higher shelf temperature control accuracy;

Equipped with a negative pressure gas introduction system interface, built-in 0.2μm filter, reducing secondary contamination of samples, capable of backfilling with nitrogen or inert gases;

The sealing structure of the material chamber and cold trap chamber is T-shaped embedded, with sealing rings formed by integrated molding, completely preventing air leakage due to door closing deformation; the overall machine design is integrated, compact, and aesthetically pleasing (Patent No.: 201930234883.6);

Optional vacuum degree adjustment function, beneficial for freeze-drying process exploration; optional WIFI and IoT card modules for mobile remote control operation and WeChat alarm transmission functions;

Features vacuum pump usage time accumulation, reminding timely replacement of vacuum pump oil, extending service life;

Equipped with three-level permission management, each account can set an independent login password; account login, time, operation information, freeze-drying data and curves, and alarm records can be audited and traced; recording frequency is once per minute, freeze-drying curves can be directly exported, data tables exported in PDF format; recipe names can be customized and modified, capable of storing 50 different freeze-drying processes, each with 36 temperature control gradients; heating time and temperature control time for each segment can be set independently, countdown starts only after the set value is reached; during temperature control, current segment data can be modified, automatically recalculating the remaining sublimation time after modification;

IoT interconnect control technology, optional PC-based upper computer control system, possessing existing PLC control functions with stronger data processing capabilities and powerful network communication functions, capable of executing complex control algorithms and offering nearly unlimited storage capacity advantages.

Freeze Dryer Parameters:

Cold trap ultimate temperature (no load): ≤-80°C (ambient temperature ≤25°C)

Vacuum degree (no load): ≤10 Pa     Ultimate vacuum degree: 1.0 Pa

Maximum continuous water capture capacity: 8Kg

Material trays, freeze-drying capacity: 2+1 shelves, layer spacing 143mm, freeze-drying area 0.2㎡, 851 φ16 vials, 448 φ22 vials

Shelf dimensions (length × width): 335mm × 300mm

Shelf temperature control range: -50°C ~ +50°C (temperature control accuracy: ±1°C)

Main unit dimensions (length × width × height): 700mm × 800mm × 1550mm (excluding capping)

Applicable power supply: AC380V  50Hz     

Total power: 3300W

Total weight: 290KG

Applicable environment: Ambient temperature ≤30°C  

Information on the Freeze Dryer DGJ-20E is provided by Guangzhou Jincheng Scientific Instrument Co., Ltd. For more information about the freeze dryer, please feel free to contact us for consultation.