STATIONARY POWER
Miller’s EnPak Air Power 40 generator/compressor is designed
to provide field service technicians air and electrical power in
a self-contained, engine-driven unit.
KEEPING POWER
ON WHEN THE TRUCK ISN’T
Miller’s EnPak Air Power 40 air compressor/generator targets reduced runtime, fuel costs
BY KYLE KOPPLIN
Over the years, as the number of air-driven and electrical service tools have increased
significantly, field service technicians
in many industries have often relied
on hydraulically driven air compressors, underhood air compressors
and generator sets to provide air
and energy to power their tools and
accessories. In most instances, that
has meant leaving the service truck’s
engine running — problematic in
terms of adding operating hours to
the engine and more of a problem
now, with fuel at near-record highs.
Miller Electric Mfg. Co.’s answer
to those challenges is the EnPak Air
Power 40, an engine-driven air compressor and generator, designed to
be integrated into the vehicle’s electrical and fuel systems. According
to the Appleton, Wis., company, the
system can deliver as much as a
30% reduction in fuel cost and can
decrease engine hours by 60%, as
well as lowering overall noise and
reducing engine exhaust emissions.
It is targeted toward service applications in power generation, public utilities, municipalities, transit authorities, waste disposal and rental equipment facilities.
The EnPak Air Power 40 is powered by a Kubota D1105 liquid-cooled diesel engine rated 27 hp
at 3600 rpm that drives a Miller oil-cooled variable speed rotary screw
air compressor rated 40 cfm at 100
psi at 3600 rpm with a maximum
pressure of 175 psi. The vertical
exhaust system for the Air Power
40 was developed by Miller and is
designed to reduce exhaust fumes
when working behind the truck, the
company said.
Miller’s EnPower technology is
designed to automatically adjust
the engine speed to match the load
requirement. “Depending on the tool
being utilized, the system will simply
monitor what the load drop is that the
tool is calling for and run the engine
at the appropriate speed,” said Chris
Wierschke, product manager, Miller
Electric. “In relation to sound absorption and decibel level, the way in which
the unit is mounted will play a factor.
“It can be placed either on the
side pack of a truck, or in the load
space. Both applications alter sound
differently. Though the sound level
will be the same, the sound tone or
quality will be different, as there are
more absorption factors in a load
space than there are on a side pack
in free air.”
Miller said that noise reduction
ranges from 3 to 7 dB(A) and 4 to 9
dB(A), respectively, in comparison to
traditional work trucks equipped with
a reciprocating or screw compressor.
www.lincolnelectric.com
