by Tom Kuennen, Contributing Editor
Photo courtesy of Caterpillar, Inc.
The Caterpillar Mobil-Trac
undercarriage delivers traction
on heavily tacked surfaces, and
the large ground-contact area
minimizes the base disturbance
on soft materials.
Here's a sneak peek at the technologies behind exceptional
equipment for roadbuilding at ConExpo-Con/Agg 2014
undreds of products new to ConExpo-Con/
Agg 2014 will be on display at that triennial
exposition this year, but some of them will
be distinguished by the advanced science and
engineering that has gone into perfecting them.
This month, Road Science takes a close look at noteworthy
road construction equipment technology at ConExpo-Con/
Agg. In our February issue next month, we'll examine the
science and technology behind road construction materials to
be exhibited there.
Plan now to attend ConExpo-Con/Agg 2014 in Las Vegas
March 4 to 8. Visit conexpoconagg.com for more information.
Cat track, compaction control
Recent technological improvements that are engineered and
built into Caterpillar's paving, compaction and cold-planing
products will be on display at ConExpo-Con/Agg 2014.
"Customers tell us they want technology with function —
technology that helps them improve their productivity and
their bottom lines," says Jim McReynolds, president, Caterpillar
Paving Products. "Our ultimate goal is to provide customers
with solutions that reduce their owning and operating costs."
The Mobil-Trac undercarriage, available on many new Cat
pavers, provides best-in-class traction, with the high travel
speeds and maneuverability, Caterpillar says. Work is completed quickly, and pavers can perform under varied and
With this undercarriage, an oscillating bogie design
provides multiple pivot points, so the undercarriage easily
overcomes bumps and dips. The tow point is isolated from
the deviations and ride quality is enhanced.
Friction-drive with automatic belt tensioning has always
been part of the system, Cat says. Belts do not slip, while
rubber-coated components prevent the build-up of asphalt
that is common to other belt drive systems, and leads to
Better Roads January 2014 5