51
march 2015
international
construction
HAULERS
Truck upgrades
Rated payload capacities for the newmodels are 36 ton (32.7
tonnes), 42 tons (38 tonnes), and 45.2 tons (41 tonnes) – a
new size class for Caterpillar, with all models replacing their B
Series predecessors.Thenew745C’s 1.7 ton (1.5 tonne) capacity
increase (comparedwith the 740B’s capacity) combines with its
faster cycle times for significant production gains.
The 735C’s engine is rated at 337 kW and the C18 ACERT
engine in the 740CEJ and 745C is rated at 381 kW.
The series features the company’s Cat Connect system, which
gathers data about machine performance and can be used as
a tool to improve site efficiency. An additional option is Cat
Production Measurement, which measures payloads to give a
greater insight intoproductivity, and costsper tonne. If linked to
Cat Connect LINK technologies, payload data can be accessed
over the Internet for further central analysis.
Latestmodel due
Meanwhile Tristan du Pisanie, product marketing manager at
Bell Equipment, said thatwhile sales forADTs in the company’s
home market of South Africa had been hit by a downturn in
mining, therewere othermarkets that were performingwell.
He said, “The rental sideof themarket has beendoingwell and
we’ve found that both in the UK andNorth America, that has
been our largestmarket.
“We are relatively new in the US market, but there has been
an increase in large scale infrastructure
work and cityprojects.Upuntil 2012, 40
ton (36.3 tonne) trucks were the market
leaders, but we have seen since 2013 that
30 ton (27.2 tonne)models have become
more popular.”
He added that while there was a
growing trend towards mid-size trucks,
the company’s strategy was weighted
towards producing larger 40 ton (36.2
tonne) and 50 ton (45.4 tonne) models,
due to their ability to handle larger
volumes of material more efficiently.
It is with the 50 ton (45.4 tonne) unit
that the company has enjoyed particular
success, with demand growing over the
last decade.
He said one of its main areas of focus
for ADTs had been in improving fuel
efficiency, with its on-board telematics
and payload weighing systems helping
boost productivity.
Its latest models, the Bell 25E and
B30E, powered by a 7.7 litre Mercedes-
Benz engine and meeting Stage IV/Tier
4 Final emissions will be on show at
Intermat inParis, France inApril.
Roy Haaker, product line director
for wheeled loaders & articulated
dump trucks at Doosan, agreed that
construction equipment markets were
improving.
He said, “The global ADT market is
recovering slowly from the financial crisis
and apart from a small dip in 2013, the
market has seen growth in the last few
years.
“With the unique features of the
Doosan ADT such as the tandem for traction, the sloping rear
frame for improved stability and weight distribution, Doosan
has been able to improvemarket share.”
Though active across global markets, he said that Europe had
been especially strong for the company, with its manufacturing
base inNorway.
This had provided Doosan with the additional strengths of
short lead times and easy access to expertise at the factory.
It has launched new versions of the company’s ADTs – the
DA30, powered by a Scania DC9 276 kW diesel engine and
DA40, featuring aScaniaDC13368kWdiesel engine thatmeet
Stage IV/Tier 4Final emissions criteria.
The company said its design features a number of key
improvements including greater fuel efficiency, enhanced
controls and high operator comfort, together with improved
reliability, durability and reduced maintenance and servicing
costs.
The new DA30 and DA40 models feature an articulation
hinge positioned behind the turning ring to provide equal
weight distribution to the front axle, even during maximum
steer articulation.
Better fuel consumptionof thenewDoosanADTs is down to a
combinationof features includingnewScaniaSelectiveCatalytic
Reduction (SCR) and Exhaust Gas Recirculation (EGR) diesel
engines and a newZFEP transmission.
Volvo’s A35E has been used for
roadbuilding projects in Saudi Arabia.
Komatsu’s
HM400-5 being
is put through its
paces.
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