EQUIPMENT
64
international
construction
july-august 2013
JCB
JCB has entered the six
cylinder diesel engine
arena with the launch
of the Dieselmax 672,
and has also introduced
other new machines.
Lindsay Gale
reports.
J
CB has announced its entry
into the six cylinder diesel
engine arena with the launch
of the JCB Dieselmax 672, the
result of a UK£ 45 million (US$ 69
million) development programme.
To date, the company has built
more than 250,000 four cylinder
units since production began, and
the new engine is the next logical
step in its engine development
programme. It will be produced on
a dedicated line at the JCB Power
System’s facility in Derbyshire, UK.
The Dieselmax 672 is based on
its 4.8 litre four cylinder engine,
providing a high commonality of
parts, and will be available in four
ratings – 140 kW, 165 kW, 190
kW and 225 kW, with a maximum
torque of 1,200 Nm.
“The move into six cylinder
engine production is a historic
moment for our business and a
natural step to take and we look
forward to setting new standards in
performance and fuel efficiency.”
iC
Machine updates
Reduced emissions for excavators and loaders
A
t the same event that the new engine was announced, JCB
showed off a number of machines, including additions to its
latest generation of JS excavators that meet the requirements
of the Tier 4 Interim/Stage IIIB emissions legislation.
The new machines were the tracked 17 tonne class JS160LC and
22 tonne class JS220LC, and the wheeled 16 tonne class JS145, all of
which are powered by JCB’s Ecomax four cylinder diesel. In addition,
the company unveiled two Isuzu-powered models, the 24 tonne class
JS240NLC and38 tonne class JS360LC.
Also on show for the first time were two new wheeled loaders, the
8.2 tonne 411 and 9.6 tonne 417, the use the Tier 4 Interim/Stage IIIB
compliant 4.4 litre JCB Ecomax engine that delivers 93 kW in the 417
and 68 kW in the 411. The 411 sports a 1.2 m
3
capacity bucket as
standard, while the 411 is a 1.6 m
3
bucket capacity machine.
Firing on all six cylinders
According to JCB, the new engine
will offer a substantial saving in
fuel consumption of up to 8% over
engines previously used in its JS
excavator range. It is the result of a
two-year development programme
and already has undergone more
than 50,000 hours of testing, much
of which was done in the field.
It initially will be available as a
Tier 2/Stage II unit for machines
being sold into less regulated parts
of the world, such as Russia, Brazil
and China.
The first machines to see the new
engine will be the company’s JS330
and JS360 tracked excavators.
Other machines will be offered
with the JCB engine option as time
progresses.
According to Tim Burnhope,
JCB’s innovation and product
development officer, a Tier 4 final/
Stage IV version should be available
by mid-2015.
Of note is the fact that JCB’s
Ecomax engines meet the current
engine emission requirements
without the use of a diesel
particulate filter or selective
catalytic reduction.
Emissions compliance is achieved
through the use of exhaust gas
recirculation, a variable geometry
turbocharger, common rail fuel
injection and a highly efficient
combustion process.
JCB chairman Sir Anthony
Bamford said, “In a relatively short
space of time we have become a
major producer of engines. Today
more than 70% of JCB machines
are powered by our engines.
JCB’s new six cylinder
Dieselmax 672 diesel
engine was unveiled
at the company’s
Rocester, UK,
headquarters
The JS220LC is one of two tracked
excavators that now conform
to the latest engine emissions
regulations through the use of an
Ecomax 4 cylinder engine
