1.Forcibly circulating system of transmitting oil can heat it up indirectly to avoid carbonization of asphalt. 2.Filling materiel and common asphalt,both of them can be used. 3.Asphalt pump and transmitting oil pump are set up outside to repair easily. 4.Small volume powerful function;easy operation. Real Size(mm)1400mm*750mm*1200mmWeight(kG):160kgsVolume(L):60LMaterials Copacity(m/min)0-8 m/minHeat Conduction:Heat Conducting OilHeating SourceLiquefied GasMotorYAHAMA Generator 650W After-sales service: We are responsible for changing the spare parts for free due to our quanlity reason within one year except easy-damaged parts.