The 3×LG200 Vacuum Freeze Dryer is a high-capacity industrial freeze-drying system designed for large-scale food processing and agricultural product preservation. Developed by Shenyang Aerospace Xinyang Quick-Frozen Equipment Manufacturing Co., Ltd., the system integrates advanced aerospace-derived engineering technology with modern food processing requirements. With decades of experience in Freeze-drying equipment manufacturing, the company provides reliable solutions that ensure product quality, energy efficiency, and stable long-term operation.
The 3×LG200 system consists of three independent LG200 freeze-drying chambers, each equipped with a high-efficiency condenser (cold trap), vacuum system, heat transfer system, and intelligent automatic control system. This modular configuration allows flexible production scheduling and continuous processing for industrial-scale operations.
Freeze-drying, also known as lyophilization, removes moisture from frozen products through sublimation under high vacuum conditions. Compared with traditional drying methods, freeze drying preserves the original shape, color, flavor, nutritional value, and structure of food products.
Typical parameters of the 3×LG200 freeze-drying system include:
Drying chamber model: LG200
Number of chambers: 3 units
Nominal drying area: approx. 200 m² per chamber
Heating method: Radiant heating plate system
Heating plate material: High-strength aluminum alloy
Heating temperature range: Ambient temperature to 120°C
Cold trap temperature: –30°C to –40°C
Operating vacuum pressure: 30–133 Pa
Vacuum pumping time: approx. 15–20 minutes from atmospheric pressure to 1 Torr
Typical drying cycle: 12–24 hours depending on product type
Production capacity: varies according to product moisture content and loading thickness
The system is designed for high water-capture efficiency, rapid vacuum generation, and stable temperature control, ensuring consistent product quality throughout the drying process.
The 3×LG200 freeze dryer is widely used in the food processing and agricultural industries, including:
Freeze-dried fruits: strawberries, blueberries, mangoes, apples
Freeze-dried vegetables: corn, peas, carrots, mushrooms
Instant foods: soups, noodles, ready meals
Pet food and snacks
Herbal and plant extracts
Nutritional and health foods
Because freeze-dried products retain excellent rehydration ability and long shelf life, they are highly suitable for export markets, emergency food reserves, outdoor foods, and high-end snack products.
The typical operation of the 3×LG200 freeze-drying system includes the following stages:
Raw Material Preparation
Food materials are cleaned, cut, and pre-processed according to product specifications.
Tray Loading and Freezing
The prepared materials are evenly distributed on trays and loaded onto product carts. The trays are then transferred into a freezing tunnel or freezer where the temperature is reduced to approximately –25°C or lower.
Vacuum Freeze Drying
The frozen product carts are placed inside the drying chamber. After sealing the chamber door, the vacuum system starts and the condenser temperature drops. Under low pressure, ice in the product sublimates into water vapor and is captured by the cold trap.
Drying Completion and Unloading
After the drying cycle finishes, sterile air or nitrogen is introduced to restore atmospheric pressure. The chamber door is opened and the dried products are removed for packaging.
1. What is the advantage of freeze drying compared with hot air drying?
Freeze drying preserves the product’s original structure, color, flavor, and nutrients while providing excellent rehydration properties.
2. How long does a typical drying cycle take?
The process generally takes 12–24 hours, depending on product type, moisture content, and loading thickness.
3. Is the system suitable for continuous industrial production?
Yes. The multi-chamber configuration allows flexible scheduling and continuous operation.
4. What industries commonly use freeze-drying equipment?
Food processing, agricultural product processing, pharmaceutical ingredients, and high-value nutritional products.
The 3×LG200 vacuum freeze dryer provides a reliable and efficient solution for large-scale freeze-dried food production, combining advanced engineering design, precise control systems, and proven industrial performance.
3 x LG200 Freeze-drying equipment: Industrial Vacuum Freeze Dryer System Guide
The 3 x LG200 freeze-drying equipment configuration refers to a large-scale industrial Vacuum Freeze Dryer system consisting of three LG200 freeze-drying units installed and operated as a combined production solution. This setup is widely used in food processing, pharmaceutical production, biotechnology, and agricultural product preservation, where high capacity and stable drying performance are essential.
Freeze drying, also known as lyophilization, is an advanced dehydration process that removes moisture from frozen materials through sublimation under vacuum conditions. Instead of melting into liquid water, ice inside the product directly converts into water vapor when pressure is reduced and controlled heat is applied.
A 3 x LG200 freeze-drying system significantly increases production capacity while maintaining product quality. It allows manufacturers to process large volumes of materials while ensuring consistency in drying cycles, temperature control, and vacuum stability.
What Is LG200 Freeze-Drying Equipment?
The LG200 freeze-drying equipment is a large industrial vacuum freeze dryer designed for medium-to-large scale freeze-drying operations. The system integrates several major components that work together to achieve efficient dehydration and product preservation.
Typical systems include:
Freeze drying chamber
Ice condenser (cold trap)
Vacuum pumping system
Heating and heat transfer system
Refrigeration system
PLC automatic control system
Material loading and tray systems
In a 3 x LG200 freeze-drying equipment configuration, three independent drying chambers operate either simultaneously or in staggered cycles to improve productivity and operational flexibility.
Main Components of Industrial Freeze-Drying Equipment
The freeze-drying chamber is the central component where the drying process takes place. Materials are placed on trays mounted on racks or carts. The chamber operates under deep vacuum conditions to allow sublimation.
Industrial drying chambers are usually manufactured from stainless steel to ensure durability, hygiene, and corrosion resistance.
The cold trap collects water vapor produced during the sublimation process. Vapor from the drying chamber flows into the condenser where it freezes onto cold coils or surfaces.
The condenser temperature is typically maintained between –30°C and –45°C to ensure efficient vapor capture.
The vacuum pump system removes air and non-condensable gases from the drying chamber. Maintaining low pressure is essential for sublimation to occur efficiently.
Vacuum systems usually include:
Pre-vacuum pumps
Holding pumps
Vacuum pipelines and valves
Pressure sensors and control units
Controlled heating is required during freeze drying to provide energy for sublimation. Heating is often achieved through radiant heating plates or shelves.
Heat transfer is carefully controlled to avoid damaging the product while ensuring efficient moisture removal.
The refrigeration system ensures the condenser and freezing stages maintain low temperatures. Industrial compressors and refrigerants are used to maintain stable cooling performance.
Modern freeze-drying equipment includes PLC or computer-based control systems that automatically regulate:
Chamber pressure
Shelf temperature
Drying time
Vacuum level
Cooling system operation
These systems also record process data for quality control and traceability.
Working Principle of 3 x LG200 Freeze-Drying Equipment
The freeze-drying process follows several controlled stages.
Raw materials such as fruits, vegetables, meats, pharmaceuticals, or biological products are cleaned, cut, and prepared before loading.
Materials are placed evenly on trays to ensure uniform freezing and drying.
Products are frozen to temperatures typically between –35°C and –45°C. This step solidifies the water inside the product.
Proper freezing helps form ice crystals that allow efficient sublimation during drying.
Once the chamber is sealed, the vacuum system reduces internal pressure to extremely low levels. The vacuum environment prevents melting during heating.
During primary drying, heat is gradually applied to the frozen product. Ice within the product sublimates directly into water vapor and moves toward the condenser.
The condenser captures vapor and converts it into ice.
In the final stage, residual moisture that remains bound within the product is removed through slightly higher temperatures.
This stage ensures final moisture content is extremely low, often below 5%.
Advantages of 3 x LG200 Freeze-Drying Equipment
Using three LG200 freeze dryers in one system offers several benefits for large-scale manufacturing.
The 3 x LG200 freeze-drying equipment configuration provides significantly larger drying area and throughput compared with single-unit systems.
This is ideal for factories producing large quantities of freeze-dried products.
Multiple freeze-drying chambers allow operators to run different drying cycles simultaneously. One chamber can be loaded while another is drying.
This improves production efficiency.
If one freeze dryer requires maintenance, the remaining units can continue operating. This reduces downtime and production interruptions.
Advanced control systems ensure uniform temperature distribution, stable vacuum conditions, and repeatable drying processes.
This consistency is important for both food and pharmaceutical applications.
Typical Technical Specifications of LG200 Freeze-Drying Equipment
The following table shows typical parameters for an LG200 industrial freeze dryer. Exact specifications may vary depending on system design.
| Parameter | Typical Value |
|---|---|
| Model | LG200 Freeze-Drying Equipment |
| Drying Area | About 200 m² |
| Chamber Type | Horizontal cylindrical chamber |
| Chamber Material | Stainless steel |
| Tray Material | Aluminum alloy |
| Heating Method | Radiant heating shelves |
| Shelf Temperature Range | Ambient to 120°C |
| Condenser Temperature | –30°C to –40°C |
| Working Pressure | 30 Pa – 133 Pa |
| Vacuum Level | ≤ 20 Pa |
| Typical Batch Capacity | 1500–2500 kg |
| Typical Drying Time | 12–24 hours |
When configured as 3 x LG200 freeze-drying equipment, the overall system provides significantly higher total drying area and production capacity.
Industrial Applications of LG200 Freeze-Drying Systems
Freeze drying is widely used to produce high-quality dried foods that retain original color, flavor, and nutrients.
Common freeze-dried foods include:
Fruits (strawberry, mango, banana)
Vegetables (corn, peas, carrots)
Instant soups and ready meals
Seafood and meat products
Coffee and tea extracts
Pet food and specialty snacks
Pharmaceutical freeze-drying is essential for preserving sensitive substances.
Applications include:
Vaccines
Antibiotics
Injectable drugs
Enzymes
Biological samples
Freeze drying improves product stability and shelf life.
In biotechnology, freeze drying is used for:
Microorganisms
Bacterial cultures
Enzyme preparations
Probiotics
Agricultural products can be preserved through freeze drying while maintaining their nutritional value.
Products include herbs, medicinal plants, and specialty crops.
Factors Affecting Freeze-Drying Performance
Several variables influence the efficiency of industrial freeze-drying equipment.
Thicker product layers slow down sublimation and increase drying time.
Lower freezing temperatures produce better ice crystal structures for drying.
Stable vacuum pressure is essential for efficient sublimation.
Uniform heat distribution ensures consistent drying across all trays.
Trends in Modern Industrial Freeze-Drying Equipment
With growing demand for high-quality preserved foods and pharmaceuticals, freeze-drying technology continues to evolve.
Key trends include:
Energy-efficient refrigeration systems
Advanced PLC automation
Smart monitoring and remote control
Large modular freeze-drying plants
Improved condenser efficiency
Multi-unit systems like 3 x LG200 freeze-drying equipment are increasingly used in large industrial production facilities due to their scalability and operational flexibility.
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