iVTInternational.com September 2019
64
STAGE V ENGINES FROM JCB
Clean diesel remains
indispensable to
powering the heavy
equipment which will
build the world’s
infrastructure in a period
of global population
growth, according to JCB.
Last year, JCB Power Systems
revealed its solution to Stage V
emissions regulations, which
came into force for new engines
below 56kW from January
2019. It combines
next-generation particulate
control technologies including
a diesel oxidation catalyst,
integrated diesel particulates
fi lter (DPF), selective catalytic
reduction and fi lter regeneration
control. It will be rolled out in the
shape of two new JCB engines: the 3
litre, 55kW-rated DieselMAX and the
4.8-litre, 81-129kW EcoMAX, delivering
effi ciency
gains on previous models and
featuring auto-stop for added
emissions-reduction.
“We started Stage V development
from a good position, having developed
low-emission, high-effi ciency
combustion technology for Stage IIIB
and Tier 4,” explains Alan Tolley, JCB’s
group director of engines. “JCB’s
particulate control technology is a
completely integrated solution that’s
highly reliable and effective. Installed
within the engine bays of existing
machines, it is invisible to the
customer, requiring no operator
intervention or additional service
attention during normal use.”
The four-cylinder DieselMAX, 24%
smaller and 30% lighter than JCB’s
4.4-litre EcoMAX yet producing 10%
more torque, will be offered in
numerous mid-range vehicles
including Loadalls, 3CX backhoes
and 13-tonne excavators. The
4.8-litre EcoMAX will come into its own
after January 2020, when Stage V
takes effect for engines in the
56-129kW range.
“JCB fi rmly believes internal
combustion engines will continue to
play a leading role in powering
construction,” Tolley continues. “But
we want our engines to be part of the
environmental solution, not part of the
problem, and are committed to
minimizing their impact, both in the
manufacturing process and on jobsites.
They must have near-zero air quality
impact while offering a route to zero
greenhouse gas emissions; Stage V is
an important step on this road to zero.”
“Current
manufacturers’
stabilizer systems
can be di cult and
time-consuming
to set up, so that
jobs which involve
continually
repositioning the
machine become
highly laborious,” says
Brooks. “Our electrohydraulic
system with
position control tells us where the
stabilizers are and we have machine
sensors to monitor level.”
e operator simply touches one
button to simultaneously deploy the
outriggers and bring the machine to
level, leaving them hands-free as the
Hydraload transitions from a
traveling position to fully-deployed
li -readiness in 25 seconds.
Historically, roto-makers pondered
an either/or technical choice
between stabilizer or leveling
automation, but JCB insist on
Hydraload customers having their
cake while eating it.
“I asked Richard whether he
wanted to automate level or deploy,”
says Burnhope. “But actually, he’s
done both: press a button and it just
does it. Our founder, Joseph Cyril
Bamford, used to say: ‘Simplicate –
don’t complicate.’ rough a
complex process, we’ve
produced a much
Having it all?
Such refusal to
compromise
recalls JCB’s 2017
introduction of
DualTech VT in its
AgriPRO Loadalls,
combining hydrostatic and
powershi transmission in a single
gearbox to o er best-of-both-world
versatility to farmers previously
obliged to choose between precise
yard operations and roading power
between elds. e Hydraload
makes its debut with Bosch Rexroth
two-speed hydrostatic transmission,
but could later adopt DualTech VT
depending on demand.
“Most of these machines are
dropped o by a low-loader at sites
with speed restrictions of 15km/h
and, in terms of road speed, spend
fairly little time moving from A to
B,” Brooks explains.”‘We’ve gone for
a proven, reliable two-speed
hydrostatic system to start with and
will be watching what happens in
the market.”
e Hydraload happily does
40km/h on public highways, but
strong uptake in certain segments
could advance the case for beefedup
DualTech mobility.
“Putting up gantries on HS2, you
can imagine doing a small amount of
li ing to height, then moving at
speed to the next one,” speculates
Burnhope. “We have all the parts in
the JCB toolbox and can see, possibly,
a technology change for applications
requiring more speed, movement
and productivity around site.”
Intuitive HMI
JCB expects many Loadall drivers to
graduate to the Hydraload, where
Loadall cab design will provide a
familiar and intuitive environment
which nonetheless accommodates
55kW
The power delivered by
the new Stage V JCB
3litre DieselMAX
simpler product for
the end-user.”
ABOVE: The 3.0 Litre EU
Stage V diesel engine from
JCB is now ready to take its
place in new vehicles
JCB HYDRALOAD
/iVTInternational.com
