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 LPM

MD/WMD Series

Max. Capacity:
36 GPM /135 LPM

Max. Head:
39.9 ft / 11.0 m

Learn More

MX(F) Series

130 GPM / 492 LPM

MX(F) Series

Max. Capacity:
130 GPM / 492 LPM

Learn More

MDG Series

Up to 1.7 LPM

MDG Series

Max. Capacity:
Up to 1.7 LPM

Learn More

MDT Series

Up to 20 LPM

MDT Series

Max. Capacity:
Up to 20 LPM

Learn More

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.