Rotary evaporator wata na'ura ce da ake amfani da ita a dakunan gwaje-gwajen sinadarai don ingantacciyar hanyar kawar da kaushi daga samfura ta hanyar ƙashin ruwa.Mafi sau da yawa ana amfani da tsarin ƙanƙara mai jujjuyawa don raba abubuwan kaushi tare da ƙananan wuraren tafasa, irin su n-hexane ko ethyl acetate, daga mahadi waɗanda suke da ƙarfi a cikin zafin jiki da matsa lamba.
Hakanan ana amfani da evaporators na rotary a cikin distillation na kwayoyin don shirye-shiryen distillates da tsantsa.Yanzu ana iya ƙirƙira ƙawancen ƙawancen rotary don masana'antu da samarwa tare da sanye take da filasta masu ƙarfi.