Professional dried food lyophilizer lyophilisate vacuum freeze drying fruit machine

 Productive Lyophilisate food wiki fruit machines lyophilization and freeze drying

Laboratory type lyophilizer. Laboratory lyophilizer small size, there are desktop and vertical. Table and vertical have common type, gland type, multi - manifold type. Table freeze-drying machine host volume is relatively small, the freeze-drying area is not large, generally 0.1-0.12 square meters, generally equipped with 4 layers of material tray. The temperature of the cold trap is usually -50 degrees. The majority USES the transparent bell jar type acrylic bucket, may observe the tray to load the material. Material pre-freezing and drying should be shifted without temperature control function. Strictly speaking, it is not a complete lyophilizer.

Fresh fruit vacuum lyophilisation machine LG200 with PLC and PID control system

Limited by the internal space of the desktop, this machine can't be pre-frozen to -80 degrees. Vertical freeze-drying machine because of the large internal space, can be made of -80 pre-freezing. And because of the large internal space, good heat dissipation. This compressor, control circuit and other aging slow. I suggest buying a vertical lyophilizer. The freeze-drying area of vertical freeze-drying machine is generally 0.12-0.18. The price is a little more expensive.

1000kg Vacuum Freeze Drying Equipment Lyophilisate Machine Sale Price

Pilot-scale lyophilizer. Domestic general pilot freeze-drying machine is divided into two types. One is the heating system using electric heating medium. One is a system using silicone oil as the heating medium. From the appearance, there are square cabin and round warehouse, which are basically eliminated in China. Because the silo cannot be heated with silicone oil, and the freeze-dried area is not large. Let's take the freeze-drying machine in the square cabin as an example to discuss electric heating and silicone oil heating. The shelf refrigeration of the electric heating lyophilizer comes directly from the evaporating end of the compressor. Rapid cooling. Low temperature. In the heating process.

Professional dried food lyophilizer lyophilisate vacuum freeze drying fruit machine

Because of the rapid refrigeration, leading to refrigeration and heating conflict, temperature control is not uniform. The temperature error is large. For example, the shelf should be controlled at -20 degrees. When the cooling end is turned on, a momentary drop to -30 degrees is possible. Then slowly rise to -20 degrees through the heating plate. 

Small mini freeze drying equipment for research lyophilisation purpose freeze drying machine

Electrical heating is fast, causing sudden cooling and heating, generally temperature-sensitive materials will cause melting or collapse and other phenomena. Some drugs are even inactivated. Therefore, I recommend generally temperature sensitive materials, do not recommend electric heating freeze-drying machine. It's cheaper though. But the performance is poor. Compared with electric heating, silicone oil freeze-drying machine is slightly more expensive. Performance wins! Silicon oil as the medium of the freeze-drying machine, refrigeration and heating are very reliable. The temperature can be kept within one degree. No damage to materials.

Professional dried food lyophilizer lyophilisate vacuum freeze drying fruit machine.

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