LGJ-300S Press-Fit Type (Front and Rear Chambers)

Applications

Vacuum freezer dryers are widely used in the fields of medicine, pharmaceuticals, biological research, chemical industry and food. Products that have been frozen and dried are easy to preserve for a long time, and can be restored to the pre-freeze state and maintain the original biochemical characteristics after adding water.

Key features

• The dry warehouse transparent door uses aerial acrylic materials, which are non-bonded, high strength and non-leakage, and can clearly observe the material change process during operation.
• Import brand compressor, stable and low noise.
• Brand vacuum pump with high pump pump speed and low noise.
• Prefreeze drying is carried out in situ, reducing the tedious operation of the drying process, and realizing the automation of the freezing process.
• Simulate the running window interface, visually reflect the operational status of various parts, and display the current operational parameters of each part in digital form.
• As a circulating medium, silicone oil has high temperature control accuracy, the shelf temperature difference ≤ 1 °C, and the drying effect is uniform.
• The prefreeze temperature of the shelf can be adjusted, controlled, fingered, piloted and produced.
• The separation design of freezing chambers and cold trap cavities achieves pharmaceutical-grade testing standards while increasing the efficiency and capacity of water harvesting.
• Multiple sets of programs can be stored, each program can programmatically set the prefreeze and dry segments, and the freezer can modify the program parameters during operation, and record the drying curve and data.
• 7 inch touch screen operation, PLC industrial controller, display drying curve.
• The square tray is not easily deformed, easy to operate and easy to clean.
• Equipped with an inflating valve that can charge dry inert gases.
• You can set user levels and passwords and decentralize operation management.
• Can be charged with nitrogen or inert gas for dry storage.

Shelf heating control

• Thermal cycle protection, special heating material, fuzzy PID control algorithm.
• The freezing curve optimization control algorithm can control the heating rate of the sample during sublimation and analytical drying phase.
• Using an industrial touchscreen, human-machine interaction is good, simple to understand, and easy to operate without a manual.

Operating modes

• Manual mode is used to figure out process parameters (human intervention is strong), automatic mode is used for process maturity stage, one-click operation, simple and convenient.

Data recording

• An intelligent data recording system records the operational data of various components in real time and generates curves, and can export the data through computer browsing and printing and various operations, convenient for process optimization and drying effect verification.
• PC digital library storage, storage data and computer hard disk can be used capacity relationship (optional).

Defrosting

• The cold trap electric defrosting frost improves the speed and safety of frosting through two control modes of temperature and time.

Optional accessories and functions (additional charge)

• Vacuum regulation system: Sublimation and analytical drying process for vacuum regulation to avoid problems of special substances bubbling, blowing bottles and speeding up the efficiency of freezing.
• Optional negative pressure aeration system interface, built-in 0.2μm filter, to reduce the secondary pollution of the sample, can be backfilled with nitrogen or inert gas; (Selection).
• The PC (computer) side can remotely monitor the running condition of the equipment, the farthest monitoring distance is 1.5KM (optional).
• Print drying curve and data (optional).
• Coherent dot test capability (optional).
• Large 10-inch color screen to make it easier to operate the device (optional).
• Imported brand vacuum pumps (optional).
• Water cools condense, and the temperature is more stable without affecting the ambient temperature (optional).

Calibration

• Temperature and vacuum calibration can be performed to ensure the accuracy of measurements for long-term use.
• Freezing curve query function (you can query the temperature and vacuum curve to facilitate process optimization and verification of freezing effect).

Technical specifications