Mag-drive pump

A magnetically driven micro annular gear pump, which is suited to handling liquids in critical metering applications where reliable, leak-free pumping is essential, has been introduced by Michael Smith Engineers. The ultra-compact HNP MZR 4661 pump is designed fo OEMs and small system builders who require a pump to deliver precise, pulseless flows from 4.8ml/min up to 72mL/min on system pressures up to 6bar.

The pump benefits from a hermetic design incorporating a powerful inner magnet system driven by a rotating magnetic field and an integrated speed control. Very compact, it has a diameter of just 22mm, is 69mm long and weighs 100g. To ensure a long service life it has been built with wear-resistant, ultra-hard materials.