2122 Colonial Drive, Elko, Nevada 89801
Here to see the previous MINExpo 2000
This report highlights some of the
haulage-related developments that were presented at MINExpo in Las
Vegas, 27-30 September 2004. Where appropriate, updates are provided
for some of the items listed in the MINExpo
In keeping with the "visual" nature of the
internet, a number of the digital photos taken at the show are
included in this report. Clicking on each small "thumbnail" photo
causes a larger version of the photo to be displayed. For additional
details, please contact Dave
Although Hutnyak Consulting has tried to accurately report on what
was presented, the reader should conduct further investigations
before making business decisions based on the facts and opinions
presented in this report.
- Big Haul Truck
Up to 3650
AC Drive Truck
GE's New IGBT Drive in Komatsu 830E-AC
for 360-400 ton trucks
- GE's & Siemens' New IGBT
Haul Truck Operator Training
- Big Front End Loader
- Truck Photos -
New Photos of Caterpillar,
Euclid/Hitachi, Komatsu, Liebherr
Las Vegas Convention Center
Free Email Access
Liebherr's Outside Display
Artist Working on
Truck and Loader
The MINExpo was held at the
Vegas Convention Center.
Although the show was reported to be larger than the
previous MINExpo in 2000, there were fewer displays outside
the buildings. Liebherr's
display of large equipment
was prominant outside the entrance to the main hall.
Although I haven't been able to
locate the show's official attendance figures, it was
projected that 35,000 people would be present to examine
displays by 1,300 companies.
Although the Convention Center is
now equipped with Wi-Fi
(wireless internet access),
it comes at a price - and I didn't see anyone surfing the
web on their own laptop. To their credit, the organizers of
MINExpo provided 20
internet terminals in the
Grand Lobby - where attendees each had 10 minutes of FREE
internet access to check their email. This was a very
Throughout the week, an
artist constructed a
sand sculpture of a haul truck and loader at the Komatsu
booth. It was interesting to see his work progress from day
of 4000 Series
- Big Haul Truck Engines
At MINExpo 2000, the big news was
an 18 cylinder engine producing 3500 hp. Since then, the
Detroit Diesel 20
cylinder Series 4000 engine
has been released into production, and now reigns as the
world's most powerful haul truck engine.
While Detroit's show engine was not
"dolled up" as pretty as Cummins, this engine has been
"looking good" in service. Many mining companies are
reporting that the 20V4000, and its smaller 16 cylinder
siblings , are performing extremely well. Detroit Diesel
capitalized on the good Series 4000 service history by
advertising its longevity at their display.
The 400 ton Liebherr
T282-B at the show was equipped with a Detroit
The Cummins Display had a lot of beautifully-detailed
mining engines on display. They were a work of art -
particularly the "cut-away" details. Click
here to see a page containing several photos of
this great display.
with GE's IGBT Drive
GE's "Whisper Grids"
GE's AC Controls
ton AC Drive Trucks
Komatsu displayed their 830E-AC,
their proven truck to which GE's 240 ton AC drive system has
uses IGBT technology, and could be used on 240, 320 and 360
ton truck systems (although Komatsu continues to use the
older GTO system on their 320 ton trucks).
The 830E-AC incorporates
"Whisper Grids", a recently
developed retarding grid package having a reduced noise
Terex's MT4400-AC truck uses this
same AC drive & Whisper Grids. Although Terex did not
have a truck at MINExpo, they have several MT4400-ACs in
service at various mine sites.
brochure indicates it has a
260 ton max payload, while the
brochure lists its payload
at 245-250 tons.
Controls for up to
360 ton trucks
The "motor end"
of GE's 360 ton
The "gear end"
of GE's 360 ton
Controls for up to
400 ton trucks
Pump & Radiatior
for Water Cooling of Siemens' IGBTs
AC Traction Motor
for up to 400 tons
Drives for 360-400 ton Trucks
Both GE and Siemens displayed their
new AC drive systemms for "ultra" class haul
GE's new "big truck"
(360 ton) uses IGBTs which are air-cooled, similar to its
GE's new wheelmotor has a
which matches the control system's 360 ton
The new Siemens inverter/control
system also uses IGBT
technology, but their IGBTs are water-cooled. This is a
departure from the closed vapor cooling arrangement used in
their previous GT0-based system.
Siemens new AC
traction motor features an
innovative cooling arrangement which introduces air into
both ends of the motor's stator. This reportedy elminates
the hotspots which are typically found at the "exhaust end"
of the motor.
Driving a Vitual
Simulation - Operator Training
5DT Inc. demonstrated their
operator training/virtual reality training simulators. The
main product was a haul truck simulator, including 3
wrap-around video projection screens and realistic
operator's seat and control console.
A video of the haul truck simulator
in operation can be found on their website, www.5dt.com.
LeTourneau Loader -
The introduction of the LeTourneau
L2350 loader was included in the MINExpo
2000 Report. According to a
LeTourneau representative, the first prototype L2350 has
been operating for 2 years at a mine in the Powder River
Basin. A second machine, which was sold to a mine in South
America, is currently on the production line. The machine is
reported to load 320 ton trucks in 4 passes, if a 53
yd3 bucket is installed.
Cutaway View of
Tire System - Goodyear
Goodyear displayed a cutaway and
video of their "two piece" 45R57 tire, which was introduced
into production last year for use on 240 ton trucks.
For a detailed description of this
tire system, including an excellent video, go to the
Goodyear Website http://www.goodyearotr.com
and click on the "two-piece" button at the bottom of the
World Mining Equipment magazine
also has a writeup on the two-piece tire on their website.
to read their comments.
of Mining Trucks -
The MINExpo displays indicate that
truck manufacturers have concentrated their efforts on
refining existing models, rather than developing new and
innovative vehicles. The Euclid (Hitachi) EH5000
is a beefed-up version of the EH4500,
which was displayed at MINExpo 2000. The Liebherr
B is a refined version of
the original T282,
and the CAT
793 D is also a standard
truck loaded with enhancements. The Komatsu 830E-AC
appears to be a standard 830E with an AC drive system
Links to all Truck
Photos taken at MINExpo 2004 and at MINExpo
2000 can be accessed by
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Copyright 2001 Hutnyak Consulting. All rights
reserved. Page last updated 10/21/04.
2122 Colonial Drive
Elko, Nevada 89801