About

A lush green field at sunset with a colorful sky and clouds in the background.

From the beginning, SunRotor has done things differently

In 2008, SunRotor was founded to offer a smarter alternative to the diaphragm solar pumps dominating the market. Starting with just three products—the SR4, SR6, and M100T controller—SunRotor introduced a helical rotor design that was not only more durable but also field-replaceable. This innovation, paired with a controller that could actually regulate flow, made it a game-changer for commercial water pumping. The SR-4 became a blueprint others copied, but the innovative DNA can never be replicated!

Illustration of a sunrise with a half orange sun and yellow rays extending outward.

Why Our Pumps Are Different

  • First to design a rotor-driven solar pump system tailored for one-panel use

  • Pioneered field-maintainable helical rotors and readable-from-a-distance controllers

  • Introduced rebuildable motors and pump heads designed to last and reduce downtime

  • Compact casings fit narrow wells without sacrificing performance

  • Industry-leading efficiency. Many models still run on a single solar panel

  • Clear status displays make diagnostics fast and hassle-free

Imagine just rebuilding your pump and putting it back in service. That's the SunRotor way.

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