WORLD NEWS
20 Doosan DA40 ADTs for Norway
The previously announced acquisition of the Sandvik
Mining Systems projects business — including continuous
surface mining and minerals handling technologies — by
FLSmidth has been finalised. FLSmidth now covers a
wider range of the full mining value chain, from the primary
crushing point and transport from pit to plant, all the way
through the minerals processing plant to tailings handling.
With the transfer of assets in South Africa now completed,
the company has added references and local expertise,
and is better able to deliver complete solutions to its sub-
Saharan customers, according to Manfred Schaffer, group
executive vice-president: Minerals Division. As part of the
transfer, FLSmidth will either assume existing orders or
provide project management services on behalf of Sandvik
for selected ongoing projects, and supply parts and services
for installed equipment.
In Norway, Hæhre & Isachsen
Maskinutleie AS, one of the largest
machine rental companies in the country,
has purchased 20 new Doosan DA40
Stage IV/Tier 4 Final compliant articulated
dump trucks (ADTs) from Rosendal
Maskin AS, the Doosan dealer for Norway,
based in Askim.
The new machines replace existing
DA40 models in the fleet and several
more ADTs from other manufacturers.
The Doosan DA40 package includes
a comprehensive service agreement
between Rosendal and the Hæhre Group,
encompassing 24/7 service with very quick
response times.
Designed to meet increasing demand
for fleet monitoring, machine-to-machine
communication, machine intelligence,
and remote equipment monitoring,
the DoosanConnect system offers a
web-based fleet management solution,
useful for monitoring the performance
and security of machines and promoting
preventative maintenance. It is available
as a standard feature on all new-
generation Doosan Stage IV compliant
excavators (from 14 tonne), all new-
generation Doosan Stage IV compliant
wheel loaders, and the new-generation
Doosan Stage IV compliant ADTs.
The new service allows owners
and dealers to remotely monitor and
communicate with Doosan machines via
the DoosanConnect telematics website.
Also available for retrofitting in a kit
form, the system is supplied with a free
three-year subscription, and customers
8
The School of Mining Engineering at the University
of the Witwatersrand has shot up the world league
tables to take 15th place in the 2018 QS World University
Rankings, up from its position as number 22 in 2017. “It is
extremely encouraging to earn this recognition, in light of
our ongoing efforts to keep our school at the leading edge
of learning and research,” says head of school, Professor
Cuthbert Musingwini. With about 800 undergraduate and
postgraduate students — about 15% of whom are from
outside South Africa — the school is the largest mining
engineering programme in the English-speaking world,
and the only mining
engineering school in
Africa to feature in the
top 50 worldwide. It is
also the highest-ranked
school at Wits University.
Prof. Cuthbert
Musingwini, head of
the School of Mining
Engineering at Wits
University.
MAY 2018
While SEW-EURODRIVE does have general-purpose units
for fans, pumps, and even conveyors, it initially saw a niche
for a unit specifically for the heating, ventilation, and air-
conditioning (HVAC) industry, targeted at building designers
focusing on ‘green’ design. In terms of a commercial building
such as a hospital, traditional drives meant that fans had
to operate continually at full speed. With the improved
functionality of the LTP-B Eco HVAC drive, facility managers
can now control a fan by running it according to demand.
This represents a major advantage in terms of energy
saving, allowing for total flow control.
While the HVAC sector remains a focus, the broader
energy-saving benefits means it is equally applicable to
customers in other niche sectors, especially as the drive is
available in a broad power-output range from 0.75kW to
250kW. In addition, it replaces the traditional electrolytic
capacitors used in the DC link with film capacitors, which have
reduced energy losses, as well as eliminating the need for AC,
DC, or swinging chokes, which boosts the overall efficiency of
the drive by 4% compared with a standard AC drive.
For mining applications, the LTP-B Eco drive is ideal to
ensure clean airflow underground. HVAC control in mining
operations is also highly energy intensive, which means
the new energy-efficient drive can make a significant
contribution to total cost savings.
are provided with their own account so
that they can manage the machines in
their fleet using the system. Once the
complementary period expires, customers
have the option to purchase a service
extension.
With the 20 new DA40 ADTs being put
into operation, 51 of the 59 ADTs in the
Hæhre system will be from Doosan. Two
of the remaining eight are dump trucks in
sizes Doosan does not have in its range.
Like all Doosan ADTs, the DA40 model
features an articulation hinge positioned
behind the turning ring to provide equal
weight distribution to the front axle, even
during maximum steer articulation. This,
together with a free-swinging rear tandem
bogie, ensures equal distribution of weight
to each wheel and guarantees permanent
six-wheel contact and drive for equal power
distribution and excellent performance on
difficult terrain. Collectively, the forward
turning point, the unique tandem bogie,
and the sloping rear frame results in ‘best
in class’ rough and soft terrain capabilities
and avoids the need for electronic aids
such as traction control.
The DA40 also offers best-in-class fuel
consumption owing to a combination of
features, including the Scania DC13 368kW
(500HP) Selective Catalytic Reduction
(SCR) and Exhaust Gas Recirculation (ECR)
diesel engine and the ZF EP transmission,
improving the transfer of power from
the engine to the wheels for outstanding
traction, with an electronic engine brake
system — one of four brake systems on
the truck.
The DoosanConnect system offers a web-based fleet management solution, convenient
for monitoring performance and security of machines and promoting preventative
maintenance.