The complete vacuum freeze drying equipment from Yantai TRUE Cold Chain Equipment Co., Ltd. under the True Cold-chain brand is designed as a fully integrated project with multi-system optimized configurations. As a leading vacuum freeze dryer manufacturers, we have developed various forms of complete sets of vacuum freeze drying equipment to meet the diverse needs of different industries and freeze-drying products, providing comprehensive services including overall freeze-drying plant design, layout design of small commercial freeze dryer, process design, system process design, product testing, and freeze-drying process testing.

 

Our vacuum freeze drying machine features high production efficiency, low operating costs, minimal defect rates, long-term safe and stable operation, high automation, and easy maintenance. These vacuum freeze dryers are widely applicable across industries such as fruit and vegetable food, pet freeze-dried food, biomedical, and chemical engineering. Explore our range of vacuum freeze drying equipment, from small commercial freeze dryers to large commercial freeze dryers, all available at competitive vacuum freeze drying machine price.

 

Types of Vacuum freeze dryers equipment

Freeze Dried Food Equipment

Fruit and vegetable food freeze-drying equipment, can be applied to meat, vegetables, fruits, aquatic products, beans, coffee, Chinese medicinal materials, health products and other food freeze-drying, to maximize the original product color, taste, shape.

Fruit and Vegetable Freeze-Drying Equipment

Granule Coffee Freeze-Drying Equipment

Conditioning and Processing Food Freeze-Drying Equipment

 

Pet Food freeze drying machine for sale

The equipment can realize the maintenance of pet food protein, microorganisms and other biorelated components, the product capacity will not change, good rehydration, suitable for chicken, duck, beef, venison, fish and other pet food production.

Freeze-Drying Equipment for Pet Treats

Pet Food Freeze-Drying Equipment (Including Automation Equipment)

 

Laboratory Freeze Dryer

Laboratory freeze dryers are mainly used in biological products research and development, pharmaceutical reagents, food science material science and other fields, generally with small size, convenient operation, intelligent monitoring and other characteristics.

 

Freeze Dryer in Pharmaceutical Industry

Equipment is widely used in the production of various types of drugs, including biological products, chemical preparations and herbal extracts, freeze-drying technology can better protect the active ingredients of drugs, reduce heat loss of heat-sensitive drugs, and improve the stability and storage time of drugs.

 

Drying Process of Vacuum Freeze Drying Equipment

Pre Freezing

The first step in freeze-drying is pre freezing. By pre freezing the free water in the sample, irreversible changes such as foaming, concentration, shrinkage, and solute movement will not occur during vacuum drying.

 

Sublimation Drying

Sublimation drying is the process of dehydrating and drying frozen products by directly sublimating their ice crystals into water vapor through vacuum pumping. This stage of drying starts from the surface of the material and gradually moves inward. When all the ice crystals are removed, this stage of drying is considered complete.

 

Desorption Drying

After the first stage of drying is completed, there is still some moisture adsorbed on the capillary walls and polar groups of the dried material. In order to extend the product's shelf life and storage stability, this moisture must be removed, which is the purpose of analytical drying. The temperature of the dried product should be high enough to achieve the final freeze-drying purpose.

 

Why Choose True Cold Chain as Your Vacuum Freeze Drying Equipment Supplier?

In the freeze-drying field, our market share in the Chinese market is as high as 70%. Our experience in the freeze-drying field spans over 30 years. We are one of the first enterprises in China to produce freeze-drying equipment. Our past industry experience and customer base have provided us with sufficient data support. So that we can better serve customers from various industries. Our company plans to establish sales offices and after-sales service points in some markets by the end of 2025, in order to respond promptly to the requirements and after-sales needs of local customers.

 

Principle of Vacuum Freeze Drying Equipment

The basic principle of vacuum freeze-drying is to use the principle of ice crystal sublimation under vacuum and low temperature conditions, so that the moisture in the pre frozen material is directly removed as water vapor through solid-state sublimation without melting, and the material is dried under the condition of losing only pure water and almost no other substances, which is called vacuum freeze-drying.

 

The application range of vacuum freeze-drying technology is very wide. The food industry uses vacuum freeze-drying technology to manufacture freeze-dried products for long-term storage. It is also applied in the biopharmaceutical industry, medical industry, health product industry, etc.

 

Advantages of Vacuum Freeze Drying Equipment

Lyophilizer Freeze Dryer

Wide Range of Applications

Vacuum freeze-drying equipment is widely used in fruit and vegetable foods, prepared foods (condiments, convenience foods), freeze-dried coffee, pet foods, biological products, chemical preparations and herbal extracts.

 

Lyophilizer for Sale

Storage Resistance, Locking Nutrition

It can well ensure the color, aroma and shape of the ingredients, and maximize the preservation of vitamins, carbohydrates, proteins, amino acids and other nutrients in the ingredients. It can achieve thorough dehydration, is easy to store, and has a shelf life of 3-5 years under sealed conditions. The food produced has good rehydration properties. Adding the right amount of water can restore an almost fresh and delicious taste in seconds to minutes.

 

We can also provide kinds of freeze dry machines for sale, if you are interested, please contact us.