This type is multistage and used high quantity flowing of oil for the large machine with high precise and efficiency. It is proper to make working surface slick flowing down and washing the chips by cooling fluid. As the motor
As the motor is separated from pump part, the high temperature of motor does not transfer directly to pump, so oil temperature keeps constantly.
As the impeller material is used stainless steel, the efficiency and anti-erosion is excellent.
(Impeller : stainless_steel