3×LG200 Vacuum Freeze Dryer System

Product Overview

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.

Key Technical Parameters

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.

Application Scenarios

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.

Basic Operating Process

The typical operation of the 3×LG200 freeze-drying system includes the following stages:

1. Raw Material Preparation
   Food materials are cleaned, cut, and pre-processed according to product specifications.

2. 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.

3. 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.

4. 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.

Frequently Asked Questions

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.