The heating and cooling circulator is a type of multifunctional device which owns both heating and cooling function to provide constant temperature for chemical experiment. This machine has been widely used in medical, chemical and biological industries. It can provide cooling or heating to equipment as below: Evaporators (Wiped Film Evaporator), Distillation Equipment ( Wiped Film Distillation and Other Vacuum Distillation Equipment), Reactors (Glass and Stainless Jacketed Reactor) Integrates Both Heating and Cooling Functions Via Using One Type Of Thermal Oil High Quality Imported Compressor, Circulation Pumps and Heating Parts For High Reliability And Efficiency Digital Setting And Display Of Temperature For Easy Operation Low Noise And Stable Constant Running With Low Maintenance Rates Built-in Oil Tank For Higher Security Level Accurate Temperature Control to Provide A Constant Temperature