Used rotary film evaporator by Corning (UK). Evaporator has 50 l rotating evaporating flask, driven via gearbox with adjustable rotation and el motor 0.37 kW, 1425 rpm, 380 V, 50 hz. Ex design (EExdIIBT4). Heating of flask by coil inside the bath tank – can be used on steam, oil or water. Height of bath adjustable hydraulicaly by manually operated pump. Machine is equipped with two receiving tanks, condensator and all connections. All glass is made by QVF.