Tabletop Freeze Dryer
(a)10 series
Lab Scales Desktop(Freeze-dried material 1.5-2KG)
(b)12 series
Lab Scales Vertical(Freeze-dried material 2KG)
(c)18 series
Scientific Research Scales(Freeze-dried material 3KG)
2.Pilot Freeze Dryer:
0.2m²/0.3m²/0.5m²/1m²/2m²/---Pilot Scales(Freeze-dried material 3KG-20KG)
3.Industrial Freeze Dryer:
5㎡/10㎡/20㎡/30㎡/50㎡/100㎡/200㎡/300㎡(Freeze-dried Weight 5T~60T)
4.Customization: set up the specifications you need
(a)Freeze-dried Area
(b)Freeze-dried Weight
(c)Freeze-dried Material
(d)Interlayer Quantity/Size
(e)Cold Trap Temperature
Description
Technical Parameters
Tabletop Freeze Dryer is a small freeze drying equipment, mainly used in laboratories, small production lines or scientific research institutions. The working principle of the freeze dryer is to use low temperature air to evaporate the water and remove the water in the material. Specifically, it first freezes the material to be processed in a low-temperature environment to crystallize the moisture in it; then under vacuum conditions, it increases the temperature to sublimate the moisture and transforms the solid moisture into gaseous state, so as to obtain the dried material.
As an efficient laboratory drying equipment, bench freeze-dryer has been widely used in many fields. Its characteristics and advantages of efficient drying, maintaining material quality and easy operation make it an indispensable sample handling tool in laboratories. In the selection and use of desktop freeze-dryer, users should fully consider the experimental needs, equipment performance, brand reputation and other factors to ensure the experimental effect and equipment service life.
Main Functions
Pre-freezing is not completed in this freeze-dryer, it is in the quick-freezing cold storage to pre-freeze the material and then convey it to the freeze-dryer, quick-freezing and sublimation drying stage are separated, to realize the continuous production and high efficiency.
The heating and warming of sublimation stage adopts radiant heating, which is uniform, the temperature rises quickly and the materials are heated evenly. Heating control is using intelligent PID temperature control technology, precise temperature control, intermittent work, energy saving, environmental protection.
Professional gas infusion design and control technology, strong water trapping ability, high drying efficiency.
Freeze drying control system adopts intelligent touch screen operation and control, which can real-time online display the operation status of each component, the system's process and curve, data recording, this program records, fault alarm. The system can be monitored remotely by computer or cell phone.
Freeze drying box is made of imported high-quality stainless steel 304, the inner surface is polished with high precision and high hygiene level, which meets the hygiene standard of food and pharmacy.
Non-standard customized design, can meet the demand for it in the sub-sector or direction.
Control system can save multiple sets of process formula, manual mode can make real-time adjustments to the process during the drying process to improve the process optimization rate. Automatic mode can carry out batch continuous production.
Freeze-Dried Ginger Slices
The experiment on freeze-dried ginger slices is a process involving multiple steps and parameter optimization aimed at producing high quality dried ginger slices by vacuum technique.
To explore and determine the optimal tabletop freeze dryer process conditions for ginger slices by vacuum technology in order to preserve the nutrients and flavor of ginger and at the same time to obtain ideal drying results.
Vacuum freeze-drying technology is based on the principle of water sublimation, i.e., the water in the material is directly sublimated from solid state to gaseous state under the low-temperature and low-pressure environment, so as to avoid the loss of nutrients and quality degradation that may be caused by traditional drying methods.
- Ginger: fresh, pest-free, good quality ginger.
- Vacuum freeze-drying machine: such as LGJ-10 type, used for vacuum experiments.
- Slicing tools: such as slicer or knife for cutting ginger into uniform thin slices.
- Other auxiliary materials: such as trays, label paper, etc.
- Ginger pretreatment:
Select fresh ginger and remove the outer skin and undesirable parts.
Cut the ginger into thin slices of uniform thickness, the thickness can be adjusted according to the experimental needs, such as 2mm or 6mm, etc.
- Pre-freezing:
Place the cut ginger slices in a pre-freezing chamber for pre-freezing. The pre-freezing temperature is usually low, e.g. -36℃ or -40℃, and the duration depends on the thickness of the ginger slices and the performance of the freezing equipment, e.g. 2 hours.
- Vacuum freeze-drying:
Put the pre-frozen ginger slices into the drying chamber of the vacuum freeze dryer.
Set the parameters such as the pressure of the drying chamber and the temperature of the heating plate to optimize them according to the experimental requirements. For example, the drying chamber pressure can be set to 45 Pa and the heating plate temperature can be set to 50°C.
Start the vacuum freeze dryer to carry out the drying process. The drying time depends on the thickness of the ginger slices and the drying conditions, which may be up to tens of hours.
- Post-drying treatment:
After drying is completed, remove the ginger slices for post-treatment, such as removing impurities, grading and packaging.
- By adjusting the parameters such as the pressure of the drying chamber, the temperature of the heating plate and the thickness of the slices of ginger, the drying effect and quality change of ginger slices under different process conditions can be observed.
- The optimal process conditions are usually derived from several experiments and data analysis, such as the drying chamber pressure of 45 Pa, the heating plate temperature of 50 ℃, and the slice thickness of ginger slices of 6 mm.
- By comparing the quality of ginger slices dried by hot air drying and vacuum freeze-drying, it can be found that the vacuum freeze-drying method can better retain the nutrients and flavor of ginger.
Product usage protocols
Preparation of the sample should expand its surface area as much as possible, which shall not contain acid and alkali substances and volatile organic solvents. The sample must be completely frozen into ice, if any residual liquid will cause gasification injection. Note that the cold trap is about -65 degrees Celsius, which can be used as a low-temperature refrigerator, but it must be operated with insulated gloves to prevent frostbite.
Start the chiller and pre-cool for more than 30 minutes. Put the sample into the sample rack, cover the organic glass cover, and start the vacuum pump. After the air pressure digital display is stabilized, record the temperature and air pressure values.
the sample in the freezing process, the temperature is gradually reduced, you can take out the sample back to warm up for a period of time to continue drying, in order to shorten the drying time. turn off the refrigeration machine, press and hold the main switch key for more than three seconds, and finally turn off the main power switch. Wait for the ice in the cold trap completely into water, open the water outlet valve on the left side of the chassis to release water, and use a dry cloth to clean the inside wall of the cold trap, covered with a large sheet of filter paper to prevent dust.
Setting intelligent alarm rules
The alarm setting screen is displayed
Power on the device
Ensure that the bench freeze dryer is powered on and in normal operation.
Setting screen
Navigate to the alarm setting screen on the control panel or touch screen of the device. This can usually be done through the device's menu navigation.
Select alarm parameters
Temperature alarm
Sets the temperature alarm threshold. When the temperature inside the device exceeds or is lower than the preset threshold, an alarm is triggered. Usually include cold trap temperature, sample temperature, etc.
Vacuum alarm
Set the vacuum alarm threshold. When the vacuum inside the device is higher or lower than the specified threshold, an alarm is generated.
Alarm for other parameters
You may need to set alarm rules for other parameters, such as pressure, humidity, and power voltage, according to the actual conditions of the device.
Configure the alarm notification mode
Audible alarm
When an alarm is triggered, the device can send an audible warning through the built-in audible alarm.
Light alarm
The indicator or display on the device can display alarm information to visually alert the operator.
Remote notification
If the device supports remote monitoring and alarm functions, you can set the alarm information to be sent to related personnel by SMS, email, or other remote communication methods.
Save & enable alarm rules
Save Settings
After configuring all alarm rules, save the Settings for future use.
Enable alarm
Ensure that the alarm function is enabled to monitor and report potential problems in real time while the device is running.
Test the alarm function
To ensure that the alarm function works properly, you are advised to test the alarm after setting it. You can simulate various alarm conditions to check whether the device can correctly send alarm notifications.
The alarm setting interface and parameter setting methods may vary according to the device model and manufacturer. Therefore, when setting intelligent alarm rules, make sure to refer to the operation manual of the device or consult the technical support personnel of the manufacturer for accurate guidance.
Set an alarm threshold properly. The alarm threshold is determined based on the normal operating scope of the device and the severity of potential problems. If the threshold is too high, the alarm function may fail to detect potential problems in a timely manner. If the threshold is too low, false alarms and frequent interruptions may occur.
Check and maintain equipment regularly. Even if intelligent alarm rules are configured, check and maintain the device periodically to ensure its normal operation and prolong its service life.
The tabletop freeze dryer, a compact and efficient laboratory instrument, revolutionizes the preservation and processing of various samples within a confined space. This versatile device utilizes the principle of freeze-drying, also known as lyophilization, to remove water from samples through sublimation under vacuum conditions. By converting ice directly into vapor without passing through the liquid phase, it preserves the structure, shape, and biochemical properties of the samples intact.
Designed for benchtop use, the Freeze Dryer boasts a sleek, ergonomic design that fits seamlessly into any research or laboratory setting. Its compact footprint maximizes workspace efficiency, making it ideal for small-scale operations or educational institutions. The unit typically features an intuitive control panel with digital displays and programmable settings, allowing users to customize freeze-drying cycles according to their specific needs.
Key components include a high-vacuum pump to create the necessary low-pressure environment, a refrigeration system to freeze the samples, and a heating element to facilitate sublimation. Safety features such as over-pressure protection, temperature alarms, and automated cycles ensure safe and reliable operation.
Applications span a wide range of fields, including pharmaceuticals, biotechnology, food science, and materials research. From prolonging the shelf life of sensitive drugs and vaccines to preserving fragile plant tissues for histological studies, the tabletop freeze dryer offers unparalleled versatility and precision.
In summary, the tabletop freeze dryer combines advanced technology with convenience, enabling scientists and researchers to perform high-quality freeze-drying tasks without the need for bulky, expensive equipment. Its compact design, user-friendly interface, and broad applicability make it an indispensable tool for modern laboratories.
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