Available from Michael Smith
Engineers, MZR micro annular gear
pumps from HNP Mikrosysteme are
suitable for applications which
require fast, accurate dispensing and
metering of small volumes of liquids.

The range covers many duty
parameters including dispensing
volumes from 0.25microlitres, flow
rates from 1 microlitre/h to 1.1L/min
and discharge pressures between 0
and 150bar for liquids with
viscosities between 0.3 and
1,000,000cP.

The range comprises six series of
pumps. The High Performance
Series, for example, is for challenging
dosing tasks requiring high
precision, covering medium to high
pressures, high temperatures and a
wide viscosity range. These pumps
have a double-sided bearing system
and are driven by a powerful DC
servomotor with integrated control.

The Hermetic Inert Series is suitable
for more aggressive liquids due to
the material options available for
internal wetted components. For
example, nickel-based tungsten
carbide, zirconium oxide or diamond
ceramics, which offer chemical/wear
resistance.