The RH heat reflux extracting concentrator is advantageous for its high efficiency, energy-saving, and multi-functionality. It is composed of extracting tank, heater, evaporator, condenser, cooler, oil separator, heater, and control system. The whole unit operates in an enclosed environment, so it has little gas consumption. It is controlled by a PLC, enabling adjustment on heating temperature, evaporation temperature, reflow temperature, system vacuum pressure, and liquid level of solvent in extracting tank. Water or alcohol solvent distillation in conditions of negative pressure, normal pressure, or positive pressure, especially low-temperature distillation of heat sensitive materials can be made.

The unit has great performances in the extraction and concentration of medicine, herb, and fresh plant products. It is widely applied in traditional Chinese medicine factories and health product factories, which shows its powerful capability. The equipment is also applicable to the extraction and concentration of natural condiments and food additives from animal products.