The chemical vacuum freeze dryer is a high-end device specifically designed for dehydrating chemical products. It uses freeze-drying technology (lyophilization) to gently dehydrate materials in a low-temperature vacuum environment. The equipment consists of core components such as a refrigeration system, a vacuum system, a heating system, and a control system. It utilizes advanced PLC automation to precisely control all parameters throughout the freeze-drying process.
The equipment has an operating temperature range of -80°C to +80°C and an ultimate vacuum of less than 5 Pa. Its unique cold trap system utilizes two-stage cascade refrigeration technology, reaching a minimum temperature of -85°C and effectively capturing sublimated water vapor. The heating system utilizes multi-zone PID temperature control technology, achieving a temperature control accuracy of ±0.5°C. The main body of the equipment is constructed of 316L stainless steel, offering excellent corrosion resistance, making it particularly suitable for handling various chemical reagents and corrosive materials.
Chemical vacuum freeze dryers offer several significant advantages: First, their low-temperature drying properties (typically between -40°C and 30°C) maximize the preservation of the chemical's molecular structure and activity; second, the sublimation drying process in a vacuum environment prevents oxidation and thermal denaturation of the material; and third, the dried material possesses a porous and loose structure with good rehydration properties, making it easy to process and reuse. Furthermore, the equipment is equipped with multiple safety protection systems, including over-temperature protection, vacuum alarms, and power-off protection, ensuring safe and reliable operation.
