Concentric is celebrating the
production of the millionth Alfdex
centrifugal separator, which removes
oil droplets from the exhaust
gas of diesel engines.

Since production
started in 2004, Alfdex
has made a major
contribution to the
environment by
enabling many trucks,
buses and off-road
vehicles worldwide
to meet ever stricter
emission policies.

Alfdex, a 50/50 joint
venture between Alfa
Laval and Concentric
AB, uses centrifugal
separator technology to
remove oil droplets and soot
particles from the engine’s vent gas
and return them to the sump.

The latest generation separator is
far more efficient than earlier models
and can handle a greater
proportion of the
ventilation gas in
diesel engine
crankcases and
exhaust pipes. An
extra benefit is that
it reduces oil
consumption with no
external discharge. The
design is 99% efficient in
normal driving
conditions and requires
no maintenance or
servicing throughout an
engine life of 20,000 hours
or 600,000 miles.