The LG-125 Drying Chamber is the core component of the LG-125 vacuum freeze-drying system, designed for precise, large-area freeze-drying of food, herbs, and pharmaceutical products. Manufactured by Shenyang Aerospace Xinyang Quick-Frozen Equipment Manufacturing Co., Ltd., the chamber integrates advanced aerospace-derived engineering, high-quality materials, and energy-efficient design to ensure stable, uniform, and reliable drying.
In freeze-drying, water in frozen products sublimates under vacuum, and the drying chamber provides the controlled environment for this critical process, maintaining temperature, vacuum pressure, and airflow to ensure nutrient and structural integrity of the products.
Model: LG-125 Drying Chamber
Internal area: 125 m²
Chamber material: 304 stainless steel for durability and corrosion resistance
Heating system: Radiant aluminum alloy plates
Heating temperature range: Ambient to 120°C
Cold trap integration: Efficient water vapor capture at –30°C to –40°C
Vacuum range: 30–133 Pa for precise sublimation
Tray capacity: Compatible with standard aluminum trays, optimized for airflow and heat transfer
Automation: Compatible with PLC and PC-based control for temperature and vacuum monitoring
The LG-125 drying chamber ensures uniform heating and vacuum distribution, minimizing product variation and maximizing yield.
The drying chamber is suitable for a wide range of products:
Fruits: strawberries, apples, blueberries
Vegetables: peas, corn, mushrooms
Herbal and medicinal plants: ginseng, goji berries, herbal powders
Nutritional ingredients and supplements
Prepared meals and snacks requiring long shelf life
The controlled environment provided by the chamber allows high-quality freeze-dried products with excellent rehydration, flavor, and nutritional retention.
Product Loading
Frozen products are loaded onto trays and inserted into the drying chamber.
Vacuum Establishment
The chamber is sealed, and vacuum pumps reduce pressure to create an environment suitable for sublimation.
Controlled Heating
Radiant aluminum plates heat the trays evenly. Sublimation occurs as ice in the products turns directly into water vapor.
Vapor Capture
Water vapor is captured by the integrated cold trap to maintain vacuum and prevent condensation on products.
Cycle Completion
Sterile air or nitrogen is introduced to normalize pressure, and dried products are removed for inspection and packaging.
Uniform Drying: Even heat distribution ensures consistent product quality.
Durable Construction: 304 stainless steel resists corrosion and wear.
Efficient Sublimation: Integrated cold trap ensures high water removal efficiency.
Automated Control: PLC and PC-based monitoring maintain stable temperature and vacuum.
Versatility: Compatible with various products from fruits to herbal extracts.
The LG-125 Drying Chamber is a highly reliable, precision-engineered component for industrial freeze-drying applications. It provides the ideal environment for nutrient preservation, structural integrity, and flavor retention while supporting medium-scale food, herbal, and nutraceutical production.
With its advanced engineering, energy-efficient design, and compatibility with automated controls, the LG-125 drying chamber is an essential solution for manufacturers seeking high-quality, consistent freeze-dried products for both domestic and international markets.
LG-125 Drying Chamber: Industrial Freeze-Drying Vessel Overview
The LG-125 drying chamber is the central component of the LG-125 vacuum Freeze-drying equipment, specifically designed for medium-scale industrial lyophilization. This stainless steel chamber provides a controlled environment where frozen materials undergo sublimation, transforming ice directly into vapor under low-pressure vacuum conditions.
The LG-125 drying chamber ensures uniform heat transfer, stable vacuum, and optimal drying efficiency, making it suitable for applications in food processing, pharmaceuticals, biotechnology, and agricultural product preservation.
The LG-125 drying chamber is engineered with precision and durability in mind:
Material: High-grade stainless steel for corrosion resistance and hygienic operation.
Shape: Horizontal cylindrical design to maximize tray capacity.
Door Type: Sealed, airtight doors with observation windows to monitor the drying process.
Insulation: High-performance thermal insulation ensures minimal energy loss.
Heating Shelves/Plates: Radiant heating shelves uniformly transfer heat to the frozen product.
Temperature Control: Automated control allows precise adjustment from ambient to 120°C, ensuring product integrity.
Heat Source: Closed-loop hot water or deionized water systems deliver stable heat under controlled pressure.
Tray Material: Aluminum alloy trays provide lightweight, corrosion-resistant support.
Tray Loading: Carts or racks allow smooth loading and unloading for batch production.
Tray Arrangement: Evenly spaced shelves ensure uniform airflow and heat distribution.
Vacuum Ports: Connect the chamber to pre-vacuum and maintenance pumps.
Pressure Sensors: Monitor chamber pressure, maintaining optimal low-pressure conditions for sublimation.
Valves: Automated vacuum valves regulate gas flow and maintain consistent vacuum levels.
The drying chamber is connected to a cold trap or ice condenser, which captures sublimated water vapor efficiently at –30°C to –40°C.
The condenser maintains the chamber vacuum and prevents condensation within the chamber.
The drying chamber operates as part of the vacuum freeze-drying process:
Pre-Freezing: Material is pre-frozen to –35°C or lower before entering the chamber.
Vacuum Initiation: The vacuum pump removes air and non-condensable gases, lowering chamber pressure.
Primary Drying (Sublimation): Heat from radiant shelves causes ice within the product to sublimate into water vapor.
Secondary Drying: Slight temperature increase removes residual bound moisture to achieve final water content below 5%.
The LG-125 drying chamber ensures controlled sublimation, minimizing structural deformation and preserving color, taste, and nutritional value.
| Parameter | Typical Value |
|---|---|
| Model | LG-125 Drying Chamber |
| Drying Area | 125 m² |
| Chamber Material | Stainless steel |
| Shelf Material | Aluminum alloy |
| Shelf Temperature | Ambient to 120°C |
| Condenser Temperature | –30°C to –40°C |
| Working Pressure | 30–133 Pa |
| Vacuum Limit | ≤ 20 Pa |
| Typical Batch Capacity | 800–1200 kg |
| Typical Drying Time | 12–24 hours |
| Door Type | Airtight with observation window |
Fruits: strawberries, blueberries, mangoes
Vegetables: peas, corn, carrots
Seafood and meat products
Coffee, tea, and ready-to-eat meals
Vaccines and injectable drugs
Biological samples and enzymes
Antibiotics
Microbial cultures
Probiotics
Laboratory reagents
Herbs and medicinal plants
Specialty crops
Uniform Drying: Radiant heating shelves ensure even heat distribution.
Energy Efficiency: Optimized insulation and heat transfer reduce energy consumption.
High Product Quality: Maintains structure, color, and nutrients.
Flexible Operation: Suitable for batch production and modular integration.
Hygienic Design: Stainless steel construction allows easy cleaning and maintenance.
Automated PLC or PC-based control for precise temperature and vacuum regulation.
Integration with energy-saving refrigeration systems.
Scalable modular designs to meet medium and large production requirements.
Enhanced monitoring systems for quality control and regulatory compliance.
The LG-125 drying chamber is a core component for medium-scale industrial freeze-drying, ensuring high-quality, efficient, and reliable lyophilization for a wide range of applications.
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