From greater
traction and grade-climbing ability, to lower maintenance requirements,
the new crop of soil compactors can do more for less.
Bomag
Utility roller digs in
 Bomag introduced
its new 47-inch BW-124-3 single-drum vibratory roller early this year. The
50-horsepower, utility-size machine combines dual travel pumps, no-spin
differential, and standard drum drive for improved traction and gradeability.
The unit weighs 7,275 pounds in smooth drum form. It has dual amplitudes and
a vibration frequency of 2,460 vpm. It achieves 19,125 pounds of centrifugal
force and has a maximum working speed of 5.6 miles per hour.
Operator enhancements include enhanced visibility, a
vibration-isolated operator platform, and floor-mounted travel pedals that
control speed and directional changes. Maintenance features include a
two-position engine hood and simplified audible and visual warning
indicators for engine oil pressure and temperature, air filter vacuum, brake
control, and hydraulic charge control. In addition, pressure test ports are
built directly into the hydraulic system for quick analysis of critical
pressures.
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Sakai
Compactors cut O&O costs
 Sakai says its new SV505 series soil compactors
combine new engineering concepts with proven features to reduce ownership
and operating costs for owners. The new series features drum drive as well
as rear-wheel drive to improve traction in rough terrain and to eliminate
bow wave build-up that occurs with rear-drive-only machines. With a
125-horsepower engine and two-speed hydrostatic transmission, the SV505 can
reach 6.2 miles per hour.
Sakai’s compaction system develops centrifugal
forces up to 50,710 pounds in smooth drum mode, and 55,120 pounds in padfoot
trim. Operators can select vibration frequencies of 2,200 or 1,650 vpm.
Carry-over features include
Sakai’s shock
isolation system which the company says combines shock isolators and a
unique drive system design to direct vibrating forces downward while
isolating the operator and machine components from that energy.
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Caterpillar
Smooth soil compactor
 Cat has expanded its 500E-series soil compactors
with the introduction of the 23,120-pound CS-533E and its 24,960-pound
pad-foot stable mate, the CP-533E. Like the larger 500E series models, the
new additions feature 150-horsepower turbo-diesel engines, 84-inch drums,
and Cat’s unique dual hydraulic pump arrangement which provides hydraulic
pressure and flow to the drum drive motor and wheel drive motor
independently. The latter feature is said to assure maximum torque and
full-time tractive power to the drive motors regardless of footing or
rolling resistance.
The rear axle uses a limited slip differential for
smooth torque transfer, increased axle service life, and continuous power in
poor conditions.
Cat
recommends the CS-533E and CP-533E for medium to large projects with low to
moderate grades where the fill thickness is less than 12 inches.
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Ingersoll-Rand
New soil compactor
Ingersoll-Rand
has added the 24,350-pound SD-116 to its TF line of soil compactors.
Available in either smooth-drum or pad-foot format, the 84-inch machine has
a 155 horsepower engine and I-R’s Ultra-Grade traction system for
gradeability. The smooth-drum model reaches nominal amplitude of 0.076
inches (1.92 mm), while the padfoot reaches 0.080 inches (2.03 mm).
Centrifugal force ratings are 60,000 pounds (267kN) for the smooth drum, and
60,700 pounds (270kN) for the pad foot. The SD-116 has five frequency
settings, ranging from 1,650 to 2,050 vpm.
At the other end of the size spectrum, the company
has also introduced the 2.6-ton, 44-horsepower SD-25D. The 42-inch-wide
machine can get in and out of 4-foot trenches easily, and also works in
road, street and parking lot applications. It develops 12,500 pounds of
centrifugal force and has a theoretical gradeability of 60%. A clamp-on
pad-foot shell kit is available for working in cohesive soils, or a
dedicated pad-foot model can be ordered, the SD-25F.
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Hamm
Produces 74,250 pounds of force
 Hamm’s 87-inch,
43,210-pound 3520/3520P headlines the company’s 3000 series soil compactors
that were introduced in 2001. The 197-horsepower vibratory unit develops up
to 74,250 pounds of centrifugal force and has a top travel speed of 7 miles
per hour. Like Hamm’s other 3000-series models, the 3520 features infinitely
variable hydrostatic drive, a high degree of gradeability, a three-point
articulation joint, and automotive style instrumentation. Its operator
platform can be entered from either side, and its swiveling and rotating
seat offers full visibility to either side of the drum. It also features
dual, seat-mounted 5-in-1 control levers to accommodate both right- and
left-handed operators. The unit is available as a smooth drum (3520) or
padfoot (3520P) model.
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Vibromax
Designed for low maintenance
The 28,220-pound Model 1105 is one of the newest
members of the 5-series Vibromax lineup of single-drum soil compactors. It
features an 82.7-inch-wide drum and two vibration frequencies: 1,740 or
2,160 vpm. It can achieve 50,565 pounds of centrifugal force.
Standard equipment includes a 135-horsepower engine,
vibration-isolated operator’s platform, two-speed drive system, and a
maintenance-free articulation joint. The Vibromax 1105 has a centralized
hydraulic test station and comes with a two-year, 2,000-hour parts and labor
warranty.
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Wacker
Compact roller has smarts
Wacker says
its new generation of RT rollers offers a smart control system and engine
control module that makes them easier to operate and maintain. The
22-inch-wide RT 56-SC and the 32-inch-wide RT 82-SC can achieve up to 18,647
pounds of compaction force.
The smart control includes a dual-joystick
remote-control box with an infrared signal that uses line-of-sight control.
If the operator comes within 5 feet of the roller’s front or rear sensing
eye with the control box, the unit will stop moving and stop vibrating.
The new Engine Control Module monitors the operating
condition of the 20-horsepower engine and provides diagnostic LEDs on the
control panel. If problems develop, the machine will automatically shut
down. Maintenance features include removable fuel and hydraulic tanks, and
the positioning of all hydraulic connectors on one side of the machine.
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Hypac
Heavyweight designed for rental markets
 Hypac says its
84-inch C840C single-drum vibratory roller is designed for the contractor
rental market. Available in smooth drum (C840C) or padfoot (C842C), the
machine has a 144-horsepower diesel engine and offers dual amplitudes and
operating frequencies of 2,160 and 1,800 vpm. The C840C weighs 22,928
pounds; the C842C weights 25,089 pounds and features 150 contact pads.
In high amplitude, the C840C achieves 53,100 pounds
of centrifugal force, while the C842C produces 61,875 pounds. Maximum
working speed is 8.4 miles per hour for both.
Also featured is a maintenance-free, bolt-on center
joint that delivers 12 degrees of oscillation and a 35-degree steering
angle. Maintenance features include drum vibration isolators that can be
replaced in the field without special tools or removal of the drum, and the
elimination of daily greasing requirements.
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Rammax
Four compact rollers
 Multiquip’s four-model lineup of Rammax walk-behind
vibratory rollers were designed as trench rollers. The company claims its
P33/24 HHM series has the highest centrifugal force of any walk-behind
trench roller, and the heaviest vibrator and bearings in the industry for
extended life.
Rammax also fields a nine-model P/K series of
ride-on rollers in drum widths of 35, 48, and 54 inches for deep trench
compaction. Operating weights range from 3,950 to 6,614 pounds and
centrifugal forces range from 14,100 to 21,600 pounds.
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Ammann
Three model line-up
Ammann’s AC series of single-drum soil compactors
includes three models, including the 6,614-pound, 48-inch AC 30; the
7,500-pound, 54-inch pad-foot AC 40 P4B; and the 84-inch, 26,900-pound AC
110.
The AC 110 is powered by a 123-horsepower turbo
diesel and develops 49,700-pounds of centrifugal force. It features dual
vibration frequencies and dual amplitudes. Its transverse-mounted driveline
is said to provide a low center of gravity, while an electronic torque
control system and anti-spin axle enhance traction. An optional bolt-on
pad-foot shell kit is available.
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Stone
Construction Equipment
Heavy-duty cover for trench rollers
 Stone Construction
Equipment's Bulldog Trench Roller line features an optional, steel
vandal cover.
The lockable cover and prevents potential theft or equipment
tampering and can prevent accidental damage to the controls and console
while operating in radio-frequency remote-control mode.
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Reprinted from Better Roads Magazine
May 2004 |
