Grundfos offers a comprehensive range of submersible motors from 4″ to 12″, including the MS series canned motors (4″ and 6″ sizes up to 40HP) and the MMS rewindable motors (6″ to 12″ sizes up to 255HP). These motors are engineered for reliable, continuous-duty operation in demanding water supply applications such as irrigation, municipal, groundwater regulation, pressure boosting, and industrial water transfer.
Constructed with all-stainless-steel exteriors for high corrosion resistance, Grundfos MS and MMS motors feature hermetically sealed stators, water-lubricated bearings, and heavy-duty MICHELL thrust bearings for long-lasting performance. Motor designs meet NEMA standards for seamless compatibility with Grundfos SP pumps and many others.
The MS series incorporates advanced cooling with internal water circulation, high-efficiency rotors, and premium mechanical shaft seals to withstand abrasive conditions. The larger MMS motors offer a robust rewindable design allowing local repair and reduced downtime. Both series can be equipped with thermal protection sensors (Pt100/Tempcon) and support motor monitoring systems for enhanced protection and efficiency.
Whether you require a compact 4″ canned motor for lighter-duty use or a powerful 12″ rewindable motor for industrial and municipal projects, Grundfos motors provide durability, efficiency, and proven reliability across a wide range of environments and applications.
Continuous Motor Leads are available for select motors in custom lengths & materials.
