The LG-125 Freeze Drying Equipment is a medium-capacity industrial Freeze Dryer designed for small to mid-scale food processing, pharmaceutical, and herbal production. Developed by Shenyang Aerospace Xinyang Quick-Frozen Equipment Manufacturing Co., Ltd., this system combines advanced aerospace-derived technology with proven freeze-drying expertise to deliver high-quality, nutrient-preserved products.
Freeze drying, also known as lyophilization, removes moisture from frozen materials by sublimation under vacuum, preserving the original shape, color, texture, flavor, and nutritional value. The LG-125 is ideal for food processors, nutraceutical manufacturers, and R&D laboratories requiring precise and reliable drying of sensitive products.
Drying chamber model: LG-125
Nominal drying area: 125 m²
Heating method: Radiant heating plates
Heating plate material: High-strength aluminum alloy
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: 10–20 hours (product dependent)
Tray dimensions: Standard aluminum trays with high thermal conductivity
The LG-125 ensures uniform temperature distribution, efficient water vapor capture, and precise vacuum control, making it suitable for products that require gentle drying.
The LG-125 freeze dryer is widely used in food, herbal, and nutraceutical industries, including:
Fruits: strawberries, blueberries, apples
Vegetables: peas, corn, mushrooms
Herbal and plant extracts: ginseng, goji berries, medicinal herbs
Nutritional powders and supplements
Ready-to-eat meals and snacks
Products processed with the LG-125 retain excellent rehydration properties, long shelf life, and superior flavor and nutrition, making them ideal for premium retail, export markets, and functional foods.
Material Preparation
Materials are washed, cut, and pre-treated according to product specifications.
Tray Loading and Freezing
Product is loaded onto trays and frozen to below –25°C in a freezing tunnel or cold storage.
Vacuum Freeze Drying
Frozen trays are placed into the drying chamber. The vacuum pump reduces chamber pressure while the condenser captures sublimated water vapor. Radiant heating plates provide gentle, uniform heat to sublimate ice into vapor without damaging the product.
Completion and Packaging
After drying, sterile air or nitrogen restores atmospheric pressure. Dried products are removed, inspected, and packaged. Trays are cleaned and prepared for the next cycle.
Q1: What is the main advantage of the LG-125 freeze dryer?
A1: It preserves the product’s natural color, flavor, nutrients, and structure, while offering excellent rehydration properties.
Q2: How long does a typical cycle take?
A2: Drying cycles typically last 10–20 hours, depending on the product type and moisture content.
Q3: What industries are suitable for the LG-125?
A3: Medium-scale food processing, herbal extracts, nutraceuticals, and R&D laboratories.
Q4: Is maintenance complicated?
A4: Routine maintenance involves vacuum system inspection, cleaning of heating plates, and cold trap monitoring, which ensures long-term reliable operation.
The LG-125 Freeze Drying Equipment offers a reliable, efficient, and precise solution for medium-scale freeze-dried food and herbal production. With advanced automation, stable vacuum control, and energy-efficient design, it is perfect for producers who require premium product quality and consistent results in industrial and semi-industrial production environments.
LG-125 Freeze Drying Equipment: Industrial Vacuum Lyophilizer Overview
The LG-125 freeze drying equipment is an industrial vacuum Freeze Dryer designed for medium-scale production in the food, pharmaceutical, biotechnology, and agricultural processing industries. Freeze drying, also known as lyophilization, is a dehydration process where frozen materials are dried under low pressure through sublimation, converting ice directly into water vapor without passing through the liquid phase.
The LG-125 model is suitable for batch production of high-quality freeze-dried products, offering precise control over drying cycles, temperature, and vacuum levels. It is widely used to preserve nutritional value, flavor, color, and structural integrity of food products, pharmaceuticals, and biological samples.
Vacuum Freeze-Drying Process: Efficient sublimation under controlled low-pressure conditions.
Stainless Steel Chamber: Durable, hygienic, and corrosion-resistant design.
Radiant Heating Shelves: Uniform heat distribution for consistent drying.
Ice Condenser (Cold Trap): Captures water vapor efficiently at low temperatures.
Automatic Control System: PLC or PC-based control for precise temperature, vacuum, and cycle monitoring.
Modular Design: Flexible configuration for small to medium industrial operations.
Energy Efficiency: Optimized refrigeration and heating systems for cost-effective operation.
The LG-125 freeze-drying process consists of several stages:
Raw materials are cleaned, cut, and evenly distributed on trays to ensure uniform freezing and drying.
Products are frozen at –35°C to –45°C to solidify moisture and form ice crystals.
The chamber is evacuated to low pressure. Heat is applied gradually to sublimate ice into vapor, which is captured by the ice condenser.
Residual bound moisture is removed by slightly increasing shelf temperature while maintaining vacuum. Final moisture content is typically 1–5%, ensuring stability and shelf life.
Freeze-Drying Chamber: Horizontal or vertical stainless steel vessel with trays or shelves.
Ice Condenser (Cold Trap): Maintains low temperatures to capture water vapor.
Vacuum System: Pre-vacuum and holding pumps maintain stable low-pressure conditions.
Heating System: Radiant shelves deliver controlled energy to the product.
Refrigeration System: Supports freezing and condenser operations.
Automatic Control System: PLC or PC monitors chamber pressure, shelf temperature, and drying cycles.
Tray and Material Handling: Carts or racks allow smooth loading and unloading of trays.
Medium-Scale Industrial Capacity: Ideal for moderate batch sizes.
Precise Process Control: Maintains uniform temperature and vacuum for consistent product quality.
Energy Efficient: Optimized heat and refrigeration systems reduce operational costs.
Versatile Applications: Suitable for food, pharmaceutical, and biotechnology products.
Hygienic Design: Stainless steel construction ensures durability and easy cleaning.
| Parameter | Value |
|---|---|
| Model | LG-125 Freeze Dryer |
| Drying Area | 125 m² |
| Chamber Material | Stainless steel |
| Tray Material | Aluminum alloy |
| Heating Method | Radiant heating 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 | 800–1200 kg |
| Typical Drying Time | 12–24 hours |
Fruits: strawberry, blueberry, mango
Vegetables: peas, corn, carrots
Seafood, meat, and ready-to-eat meals
Coffee and tea powders
Vaccines
Injectable drugs
Biological samples and enzymes
Microbial cultures
Probiotics
Laboratory reagents
Herbs and medicinal plants
Specialty crops
Energy-saving designs with optimized refrigeration and heating systems
Automated PLC/PC controls for remote monitoring and process recording
Modular and scalable solutions for medium to large production facilities
Smart freeze-drying systems for process optimization and reduced labor costs
The LG-125 freeze drying equipment is a reliable and versatile solution for medium-scale industrial freeze drying, delivering consistent quality, energy efficiency, and operational flexibility.
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