It is generally recognized that air-blower produce high operation noise due to impact
and pulsation when it sucks and discharges air in a gust.
The Tsurumi model RSR rotary blower incorporates a 3-lobe helical rotor
(* Model RSR-50K or RSR-65K has a spur type rotor)
that greatly lowers noise by a structure that continuously conveys air.
Another characteristic of ther 3-lobe rotor is that it reduces torque fluctuation
and stabilizes flow volume.
Model : RSR-50K , RSR-65K , RSR-80K , RSR-125K ,
RSR-200K , RSR-250K , RSR-300K