The LG-200 Freeze Drying Equipment is a medium-to-large capacity industrial Freeze Dryer designed for food, herbal, and pharmaceutical production. Developed by Shenyang Aerospace Xinyang Quick-Frozen Equipment Manufacturing Co., Ltd., this system integrates aerospace-derived technology with advanced freeze-drying engineering to deliver high-quality, nutrient-preserving products.
Freeze-drying, or lyophilization, removes moisture from frozen products by sublimation under vacuum, preserving the natural shape, color, texture, aroma, and nutrients. The LG-200 is ideal for food processors, nutraceutical manufacturers, and research laboratories that require reliable, uniform, and energy-efficient drying.
Drying chamber model: LG-200
Nominal drying area: 200 m² per chamber
Heating method: Radiant aluminum alloy plates
Heating temperature range: Ambient 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 (depends on product)
Tray dimensions: Standard aluminum alloy trays with high thermal conductivity
The LG-200 ensures uniform heating, precise vacuum control, and efficient water vapor capture, resulting in high-quality freeze-dried products.
The LG-200 freeze dryer is widely used in industries including:
Freeze-dried fruits: strawberries, blueberries, apples, mangoes
Freeze-dried vegetables: peas, carrots, mushrooms, corn
Herbal and medicinal plants: ginseng, goji berries, herbal extracts
Nutritional powders and supplements
Ready-to-eat meals and premium snacks
Freeze-dried products retain excellent rehydration properties, long shelf life, and superior flavor and nutritional value, making them ideal for export, premium retail, emergency food, and outdoor meals.
Material Preparation
Clean, cut, and pre-treat raw materials according to product specifications.
Tray Loading and Freezing
Spread products evenly on trays and freeze them to –25°C or lower in a freezing tunnel or cold storage.
Vacuum Freeze Drying
Load frozen trays into the drying chamber. The vacuum system reduces pressure, while the condenser captures sublimated water vapor. Radiant heating plates gently and evenly sublimate ice into vapor without damaging the product.
Completion and Unloading
Sterile air or nitrogen is introduced to normalize chamber pressure. Dry products are removed, inspected, and packaged. Trays are cleaned and reused for the next production cycle.
High Production Efficiency: Optimized drying chambers provide uniform heat and rapid sublimation.
Precision Control: Automated temperature and vacuum management ensure consistent product quality.
Energy Efficiency: Advanced radiant heating and cold trap systems minimize energy consumption.
Versatility: Suitable for a wide range of products from fruits and vegetables to herbal extracts and supplements.
Durable Construction: High-quality stainless steel and aluminum materials ensure long service life.
Q1: What is the main benefit of vacuum freeze-drying?
A1: It preserves the original flavor, color, nutrients, and structure of the product while allowing excellent rehydration.
Q2: How long does a typical drying cycle take?
A2: Approximately 12–24 hours, depending on the product type and moisture content.
Q3: Is the LG-200 suitable for industrial production?
A3: Yes. It supports medium-to-large scale operations, with flexible chamber configurations for high throughput.
Q4: What maintenance is required?
A4: Routine inspection of the vacuum system, cold traps, and heating plates ensures reliable performance and long service life.
The LG-200 Freeze Drying Equipment is a reliable and efficient solution for industrial freeze-dried food and herbal production. With advanced automation, precise vacuum control, and energy-efficient design, the LG-200 enables manufacturers to produce premium, high-quality products suitable for both domestic and international markets.
LG-200 Freeze Drying Equipment: Industrial Vacuum Lyophilizer Overview
The LG-200 freeze drying equipment is an industrial vacuum Freeze Dryer designed for medium-to-large scale production in the food, pharmaceutical, biotechnology, and agricultural processing industries. Freeze drying, also known as lyophilization, is a dehydration process where frozen products are dried under low pressure, allowing ice to sublimate directly into water vapor.
The LG-200 model is widely used for high-quality product preservation, maintaining the nutritional value, color, flavor, and structural integrity of sensitive products such as fruits, vegetables, meats, seafood, pharmaceuticals, and biological materials.
High-Capacity Industrial Freeze-Drying: Each LG-200 unit provides a large drying area for efficient batch processing.
Vacuum Sublimation Technology: Ensures moisture removal without compromising product structure.
Stainless Steel Drying Chamber: Durable, hygienic, and corrosion-resistant.
Radiant Heating Shelves: Uniform heat distribution for consistent drying results.
Ice Condenser (Cold Trap): Efficiently captures sublimated water vapor at –30°C to –40°C.
Automated Control System: PLC or PC-based control monitors temperature, vacuum, and cycle parameters.
Flexible Modular Design: Suitable for single or multi-unit systems to scale production.
The freeze-drying process in the LG-200 consists of three main stages:
Raw materials are cleaned, cut, and evenly spread on trays to ensure uniform freezing and drying.
Products are frozen at –35°C to –45°C to solidify moisture and form ice crystals, which is critical for efficient sublimation.
The chamber is evacuated to a low-pressure environment. Heat is applied to the shelves, causing ice within the product to sublimate into water vapor. Vapor is captured by the ice condenser to maintain chamber vacuum.
Residual bound water is removed by slightly increasing shelf temperature while maintaining vacuum. Final moisture content is typically below 5%, ensuring long shelf life and product stability.
Drying Chamber: Stainless steel vessel with horizontal design and radiant heating shelves.
Ice Condenser (Cold Trap): Captures sublimated water vapor efficiently at low temperatures.
Vacuum System: Pre-vacuum and holding pumps maintain stable low-pressure conditions.
Heating System: Radiant shelves with precise temperature control.
Refrigeration System: Supports pre-freezing and condenser operations.
Automatic Control System: PLC or PC-based monitoring and data recording.
Tray and Material Handling: Aluminum trays and racks allow smooth loading/unloading.
| Parameter | Value |
|---|---|
| Model | LG-200 Freeze Dryer |
| Drying Area | 200 m² per chamber |
| Chamber Material | Stainless steel |
| Tray Material | Aluminum alloy |
| Heating Method | Radiant shelves |
| 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 | 1500–2500 kg |
| Typical Drying Time | 12–24 hours |
| Door Type | Airtight with observation window |
Fruits: strawberry, blueberry, mango
Vegetables: peas, corn, carrots
Seafood, meat, and ready-to-eat meals
Coffee, tea, and instant beverage powders
Vaccines and injectable drugs
Biological samples and enzymes
Antibiotics
Microbial cultures
Probiotics
Laboratory reagents
Herbs and medicinal plants
Specialty crops
Large Production Capacity: Ideal for medium-to-large industrial batch processing.
High Product Quality: Maintains structure, color, flavor, and nutrients.
Energy Efficiency: Optimized heating and refrigeration systems reduce operational costs.
Automated Control: PLC/PC system ensures precise cycle management.
Flexible Operation: Modular units allow single or multiple chamber configurations.
Hygienic and Durable Design: Stainless steel construction ensures long-term reliability and easy cleaning.
Energy-efficient freeze-drying with optimized heat and refrigeration cycles.
Advanced PLC or PC control for precise temperature, vacuum, and cycle monitoring.
Scalable modular systems for growing industrial needs.
Remote monitoring and process recording for quality control and regulatory compliance.
The LG-200 freeze drying equipment provides a reliable, high-capacity solution for industrial freeze-drying, ensuring consistent product quality, operational efficiency, and flexibility across multiple industries.
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