Magnetic Drive Pumps
Iwaki America’s magnet drive technology is the cornerstone of our OEM pump solutions. With over 60 years of experience in design, application and manufacturing of magnet drive pumps, we have built a worldwide reputation for superior quality and reliability. From our unique hollow rotating spindle, unmatched hydraulics and premium efficient motors, we have the performance, quality and long life you demand.

MD/WMD Series
36 GPM / 135 LPMMD/WMD Series
Max. Capacity:
36 GPM /135 LPM
Max. Head:
39.9 ft / 11.0 m

MX(F) Series
130 GPM / 492 LPMMX(F) Series
Max. Capacity:
130 GPM / 492 LPM

MDG Series
Up to 1.7 LPMMDG Series
Max. Capacity:
Up to 1.7 LPM

MDT Series
Up to 20 LPMMDT Series
Max. Capacity:
Up to 20 LPM

MA/MB Series
Up to 22 GPMMA/MB Series
Max. Capacity:
Up to 22 GPM/(5.81)
Magnetic Drive Pump Technology Explained
In a standard centrifugal, gear and turbine pump, the power is delivered to the pump end either through a direct connection between the rotating element and the motor shaft or through a coupling between the pump end shaft and the motor shaft. In these cases the pumping chamber needs to be sealed from the outside atmosphere. Traditionally packing or some other sort of mechanical seal accomplishes this.
The principle of a magnetic drive pump is that the rotation from the motor shaft is transferred to the pump end via a magnetic coupling which eliminates the need for the shaft seal or packing. A drive magnet is mounted to the motor shaft, which transfers the motor torque through a sealed housing to an internal driven magnet. The driven magnet is coupled directly to the pumping element (centrifugal impeller, gears, turbine impeller) inside the pump cavity. This design typically uses one static o-ring or flat gasket to hermetically seal the pumping chamber. This configuration is categorized as seal less since the motor shaft does not protrude into the pump casing. Design constraints typically associated with seals such as leakage, friction, and maintenance due to wear are eliminated.
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