Iwaki MD/WMD Series Magnetic Drive Pump

The Iwaki MD/WMD Series is Iwaki America’s premier line of small, non-metallic magnetically coupled centrifugal pumps — scaling from 1/250 HP to 1/3 HP at flows up to 36 GPM. Extraordinarily high efficiencies and a compact, sealless package make MD/WMD the standard for OEM process, recirculation, and transfer duties where size, noise, and reliability are critical.

Standard alumina ceramic bearings and polypropylene wetted parts cover the bulk of applications, with optional silicon carbide (SiC) bearings and ETFE wetted parts for the most aggressive or highest-purity requirements. Premium high-efficiency motors, plus PSC, shaded-pole, or DC brushed/brushless options and 50/60 Hz tolerance, support worldwide OEM integrations.

Extraordinarily high efficiencies — standard choice for process, recirculation, and transfer at small scale
Material options — standard alumina ceramic bearings + polypropylene; optional SiC and ETFE for aggressive or high-purity duties
Compact, sealless package — higher pressure and longer life than traditional small pumps in laser, chiller, and blood-analyzer applications
Motor Matching — more motor/pump configurations than any other manufacturer
Premium high-efficiency motors — totally enclosed permanent split capacitor design; compact, cool, economical
Worldwide voltage tolerance + 50/60 Hz operation
PSC and shaded-pole AC motors standard; brushed and brushless DC available
Power range — 1/250 HP to 1/3 HP
Capacity — up to 36 GPM