Medium 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
As an efficient and stable drying equipment,the medium freeze dryer has broad application prospects in fields such as biomedicine and food processing.With its moderate scale,efficient performance,and stable working characteristics,it meets the needs of many industries for high-quality drying technology.It can maintain the original structure and active ingredients of the material to the maximum extent,so that the freeze-dried product has excellent quality and a longer shelf life.Meanwhile,the medium freeze-drying machine also has advantages such as easy operation,energy conservation,and environmental protection,allowing users to have a better experience during use.
With the advancement of technology and the expansion of application areas,freeze-drying machines will continue to be optimized and upgraded.The application of new refrigeration technology,vacuum technology,and control technology will further improve the performance of equipment,achieving higher levels in freeze-drying efficiency,vacuum degree,and energy consumption.In addition,with the continuous development of industries such as biopharmaceuticals and food processing,the application fields of medium-sized freeze-drying machines will also be further expanded,providing high-quality drying solutions for more industries.
We offer this equipment, detailed specifications and product information please refer to the following website.
Product: https://www.achievechem.com/freeze-dryer/pilot-freeze-dryer.html
Specifications Table
Electric Heating
Silicone Oil Heating
Ice formation process-Important link
◆ Overview of the ice forming process
1) Ice formation is the first and crucial step in freeze-drying.In this process,the material (such as food,medicine,or other samples that need to be dried) is rapidly frozen below its eutectic point,causing the water in the material to form ice crystals.This step is usually carried out in a low temperature environment to prevent damage to the material cells.
◆ The role of the ice formation process
1) Fixed material structure: Through rapid freezing,the structure of the material is fixed,which helps to maintain the shape and integrity of the material during the subsequent drying process.
2) Reduce ice crystal damage: In the process of ice formation,the formation of small ice crystals has less damage to the material cells.If the ice crystal is too large,it may cause damage to the material cells and affect the quality after drying.
3) Improve drying efficiency: The material after ice formation is sublimed and dried in a vacuum environment,because the ice crystal is directly sublimed into water vapor,avoiding the material quality decline caused by the loss of water in liquid form.
◆ The operation of the ice formation process
1) Choose the right freezing temperature: The freezing temperature should be selected according to the type and characteristics of the material,usually need to be below the eutectic point of the material.Too low a temperature may increase energy consumption,while too high a temperature may cause the ice crystals to become too large.
2) Control freezing time: The freezing time should be adjusted according to the thickness and size of the material.Thicker materials require longer freezing times to ensure that they freeze completely.
3) Maintain a low temperature environment: During the ice formation process,a low temperature environment is required to prevent the ice crystals from melting.This is usually achieved through the refrigeration system of the medium freeze dryer.
4) Pay attention to material placement: In the drying room of the freeze dryer,materials should be evenly distributed on the freeze-drying tray to avoid accumulation or too sparse.Uniform placement helps to form a consistent ice crystal structure,which improves drying efficiency and quality.
◆ The common problems and solutions of the ice formation process
1) Excessive ice crystals: This may be caused by the freezing temperature is not low enough or the freezing time is not long enough.The solution is to reduce the freezing temperature or extend the freezing time.
2) Uneven material freezing: This may be caused by uneven material placement or uneven temperature distribution of the freeze dryer.The solution is to adjust the placement of materials or optimize the temperature distribution of the freeze dryer.
3) Ice crystal melting: This can be caused by improper temperature control or equipment failure during the ice formation process.The solution is to strengthen temperature monitoring and equipment maintenance to ensure that the ice formation process is carried out at low temperatures.
Future outlook
Technological innovation drives performance improvement:
With the continuous development of new refrigeration technologies,vacuum technologies,control technologies,etc.,the performance of medium-sized freeze-drying machines will be further improved.For example,adopting advanced refrigeration systems can improve freezing speed and efficiency,new vacuum pumps can further enhance vacuum degree,and intelligent control systems can achieve precise control of freeze-drying process.
The level of intelligence and automation has improved:
In the future,medium-sized freeze-drying machines will become more intelligent and automated.By introducing advanced sensors,control algorithms,and artificial intelligence technology,the equipment will be able to achieve real-time monitoring of material status,intelligent regulation of freeze-drying processes,and automatic diagnosis and warning of faults.This will greatly improve the operational convenience and reliability of the equipment.
Green environmental protection and energy conservation and consumption reduction:
With the increasing global environmental awareness,the design and manufacturing process of medium-sized freeze-drying machines will pay more attention to green environmental protection and energy conservation and consumption reduction.The adoption of environmentally friendly materials and processes,optimization of refrigeration and vacuum systems,and improvement of energy utilization efficiency will become the future development direction.
The demand for personalization and customization is increasing:
With the diversification of the market and the increase in personalized demand,medium-sized freeze-drying machines will pay more attention to customized services for users.Manufacturers can customize specialized freeze-drying plans and equipment configurations based on the specific needs and material characteristics of users to meet their personalized needs.
Further expansion of application areas:
In addition to traditional fields such as biomedicine and food processing,the application in new energy,new materials,and other fields will also gradually expand.For example,in the field of new energy,medium freeze-drying machines can be used to prepare materials such as solar cells and lithium batteries; In the field of new materials,it can be used to prepare nanomaterials,composite materials,etc.
Emergency Food Supply:
In times of natural disasters or other emergencies,access to fresh food can be limited.A household freeze dryer allows families to create and store an emergency food supply that can last for months or even years.This provides a sense of security and peace of mind knowing that nourishment will be available in times of need.
Culinary Experimentation:
For the culinary enthusiast,a medium freeze dryer offers a new realm of experimentation.From creating unique flavor combinations to developing innovative dishes,the possibilities are endless.Homemade freeze dried meals can add an exciting twist to traditional recipes,elevating the dining experience.
The applications of this device are wide ranging, from the pharmaceutical industry, where it is key to stabilizing vaccines, serums and other biological products, to the food industry, where it preserves the taste, texture and nutritional value of foods such as fruits, vegetables and dairy products. In research laboratories, it is indispensable for preparing samples for analysis, storing sensitive compounds, and creating long-lasting, stable formulations.
Its intuitive user interface, often equipped with touch-screen controls and advanced software, facilitates easy programming and monitoring of the drying process. Real-time data logging and remote access capabilities further enhance its precision by allowing for meticulous tracking and adjustments, even when the operator is not physically present.
Advantages of Medium Freeze Dryers
It offers several advantages over other drying methods, making it an attractive option for many industrial applications. Some key advantages include:
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◆ Preservation of Structure and Properties: Freeze drying preserves the original structure and properties of the material being processed. This is because the sublimation process avoids the formation of ice crystals, which can damage the material. As a result, freeze-dried products retain their shape, color, and flavor, making them ideal for applications that require high-quality preservation.
◆ Long Shelf Life: By removing water, freeze drying extends the shelf life of the material being processed. This is particularly important for perishable foods, drugs, and other sensitive materials that need to be stored for long periods of time. The device provides a reliable way to achieve this, ensuring that the material remains stable and viable over a long period of time.
◆ Cost-Effectiveness: The equipment is cost-effective compared to other drying methods such as spray drying or oven drying. They require less energy and lower initial investment costs, making them an attractive option for small-scale production and research and development efforts.
◆ Versatility: Medium freeze dryers can handle a wide range of materials, including solids, liquids, and suspensions. They are also suitable for processing materials with different shapes and sizes, making them versatile and adaptable to various industrial applications. |
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Calibration instrument
Type of calibration instrument
Temperature verification instrument
It is used to verify the temperature distribution and uniformity inside the freeze dryer to ensure that the temperature in each area can meet the process requirements.
Temperature validators are usually equipped with thermocouple probes that can monitor and record temperature data in real time.
Pressure sensor calibration device
Calibrate the pressure sensor inside the freeze-dryer to ensure its accuracy and stability.
The pressure sensor calibration device provides accurate pressure values for comparison and adjustment with the pressure sensor inside the lyophilizer.
Vacuum gauge calibration device
Used to calibrate the vacuum gauge inside the freeze-dryer to ensure that it accurately measures vacuum.
The gauge calibrator provides a known vacuum value for comparison and calibration with the gauge inside the lyophilizer.
Calibration steps
Preparation stage:
Make sure the freeze dryer is shut down and turn off the power supply.
Prepare the required calibration instruments and tools, such as temperature verifier, pressure sensor calibration device, vacuum gauge calibration device, etc.
Temperature calibration:
Insert the thermocouple probe of the temperature verifier into the predetermined position inside the lyophilizer.
Start the temperature verifier and start recording temperature data.
According to the process requirements, adjust the temperature setting value of the freeze-drying machine, and observe the reading of the temperature verification instrument to ensure that the temperature distribution and uniformity meet the requirements.
Pressure sensor calibration:
Connect the pressure sensor calibration device to the pressure sensor inside the freeze-dryer.
Provide known pressure values according to the operating instructions of the calibration device.
Observe the reading of the pressure sensor inside the freeze-dryer and compare and adjust it with the pressure value provided by the calibration device.
Gauge calibration:
Connect the vacuum gauge calibration device to the vacuum gauge inside the freeze-dryer.
Provide known vacuum values according to the operating instructions of the calibration device.
Observe the reading of the vacuum gauge inside the freeze-dryer and compare and calibrate it with the vacuum value provided by the calibration device.
Calibration precautions
Periodic calibration
Calibration instruments should be performed regularly to ensure their accuracy and stability. It is recommended to formulate a calibration plan according to the frequency of use and process requirements of the equipment.
Professional operation
Calibration should be carried out by professionals to ensure correct, safe and reliable operation. Non-professionals are not allowed to perform calibration operations without authorization.
Records Management
During the calibration process, all parameters and data should be recorded in detail for subsequent analysis and tracking. At the same time, calibration reports should be kept properly for reference.
Safety precautions
Before performing calibration operations, ensure that the freeze-dryer is powered off and in a safe condition. At the same time, the operator should wear appropriate protective equipment to ensure safety.
Conclusion
The medium freeze dryer is a versatile and valuable piece of equipment with a wide range of applications in the food, pharmaceutical, and research industries. Despite its limitations, such as high initial cost, energy consumption, and long processing times, its advantages in terms of extended shelf - life, nutrient and flavor preservation, and lightweight products make it an attractive option for many users. By following proper operational procedures and maintenance practices, users can ensure the optimal performance of their medium freeze dryers. As technology continues to advance, the future of medium freeze dryers looks promising, with improvements in energy efficiency, process optimization, and integration with other technologies on the horizon.
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