November 17, 2011
Caterpillar released two new motor graders, the
Cat 120M2 and 12M2, and their all-wheel-drive (AWD) counterparts, the 120M2 AWD
and 12M2 AWD. The new models are equipped with low-emitting, fuel-efficient
engines meeting Tier 4 Interim emission standards and are designed for a broad
range of tasks, including heavy blade work, road maintenance, snow removal and
precision-finishing. The two new models join the 140M2/140M2 AWD and
160M2/160M2 AWD rolled out in early 2011 with features that boost production, trim
operating costs, enhance operator convenience and simplify routine maintenance.
Clean, powerful engines
The new M Series 2 models are powered by Cat VHP (variable horsepower) engines
with ACERT technology and all have wider net-horsepower ranges than their M
Series predecessors. The 120M2 and 120M2 AWD use the C7.1 ACERT engine, and the
12M2 and 12M2 AWD the C9.3 ACERT engine. Maximum net power ratings for the new
models, respectively, are 189 horsepower (141 kW), 209 horsepower (156 kW), 223
horsepower (166 kW) and 243 horsepower (181 kW).
VHP Plus is now standard on the full line-up of M Series 2 machine
models, delivering additional horsepower in each forward gear, 5 through 8, for
more power at higher speeds. The system limits horsepower in lower gears, which
helps reduce wheel slip where traction is limited. This optimizes rimpull in
all gears by balancing traction, speed and horsepower while conserving fuel.
Both engines utilize the Cat NOx Reduction System and Caterpillar
designed aftertreatment technologies to meet Tier 4 Interim emissions
standards. The Cat Regeneration System is designed to work transparently,
without any interaction needed from the operator. A soot level monitor can be
viewed on the Cat Messenger screen and regeneration indicator lights are
integrated into the front console.
12M2 updates, All Wheel Drive (AWD)
Customers have long recognized the value of the 12-series motor grader.
The 12M2 offers additional enhancements over the previous model with a longer
wheelbase, a larger displacement engine, more power and torque and the addition
of a 12M2 All Wheel Drive (AWD) model.
Operator amenities
The new M Series 2 models continue to feature Caterpillar's hallmark
control system, which uses two electronic joysticks to provide complete control
of the machine, while reducing hand and wrist movement by nearly 80 percent
compared with conventional controls. The system's intuitive design helps both
new and experienced operators work more productively.
The new motor graders also feature electronic vertical adjustment of the
joystick control pods, allowing operators to tailor joystick height for optimum
control and comfort. The spacious M Series 2 cab, with standard air
conditioning, uses angled doors and a patented sloping rear window to afford
excellent visibility to the heel and toe of the moldboard and to the ripper.
M Series 2 motor graders offer a long list of features
that build on the legacy of Cat motor grader productivity and value.
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Title: Thats Good News!
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Posted: December 1, 2011 9:44 AM
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