1. Use gear pump as measuring device to conduct precise filling of liquid or colloidal solution. 2. The filling amount can be randomly set according to the microcomputer. 3. Single table type gear pumps can be combined to realize multi-head filling line form. 4. Reasonable equipment structure and convenient operation. Applicable scope: it is suitable for varieties and multi-dose filling and is widely applied dining industries like agriculture, chemical industry, cosmetics, medicine and light industry.