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Our survey of compaction-equipment manufacturers
finds a host of new models, large and small.
Bomag
Two new 2.5-ton rollers
 Bomag rolled out two new, dash-4 series 2.5-ton
(static weight) tandem rollers early this year. The 34-horsepower,
5,291-pound BW100AD-4 has 39-inch drums and can produce up to 8,550 pounds
of centrifugal force per drum — 15% more than the model it replaces.
The 5,732-horsepower BW120AD-4 has the same power
train with 47-inch drums. It produces up to 10,125 pounds of centrifugal
force per drum, a 6% increase over the model it replaces.
Both models offer a choice of vibration speeds —
3,300 or 4,200 vpm — for working in a wide range of materials. Maximum
working speed in high frequency is 4 miles per hour. Both models also get
10.6-gallon fuel tanks (a 15% increase) and 58-gallon water tanks (a 22%
increase) to enhance productivity.
Bomag
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Hamm Compaction
Oscillating roller line expands
 The Hamm Compaction Division of Wirtgen America is
adding a new, larger model to its oscillating asphalt roller line. The Hamm
HD0120V is a 26,345-pound, 78-inch wide roller with a working offset of 81.5
inches. It has a working speed of 3.9 miles per hour. The rear drum features
Hamm’s exclusive oscillation compaction, which works by using horizontal
shear forces on asphalt rather than by forcing it downwards. Hamm says this
ensures that the drum maintains constant contact with the ground for faster,
more effective compaction. The new machine’s rear drum produces oscillation
forces of 46,125 to 62,775 pounds. The front drum features conventional
vibration with a top frequency of 3,000 vpm.
Hamm Compaction
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Caterpillar
New utility models complete the line
 Caterpillar has expanded is line of double-drum
asphalt compactors by introducing the utility-sized CE-113 and CB-114 at
Conexpo-Con/Agg ‘05. The CB-113 has a compaction width of 35 inches and an
operating weight of 3,310 pounds. It has an offset front drum to provide
total compaction coverage close to curbs, walls, and other obstructions. It
has two driving drums and rear drum vibration.
The CB-114 has the same operating weight, a
compaction width of 31 inches, high curb clearance, and has vibration
available on both drums. The unit is also available in a 3,527-pound heavy
weight configuration.
Both units are powered by a 22-horsepower,
two-cylinder diesel and feature hydrostatic drive using hydraulic motors
fitted in series for smooth starts and stops. Operator seats are equipped
with a safety switch that prevents the machine from moving if the operator
is not correctly seated.
Caterpillar
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Ingersoll-Rand
High-tech handles compaction
 Late last year Ingersoll-Rand updated its 15-ton
DD-158HFA double-drum roller with what the company calls Smart drum
technology to help the operator run the machine efficiently. Smart features
include linking each of the machine’s eight amplitude settings to the
highest frequency specified for that amplitude. Other Smart technologies
include a vibration system that adjusts frequency according to amplitude;
automatic control of the machine’s rolling speed to maintain vibration
spacing; a water system that shuts off when the machine stops and regulates
water flow according to travel speed; and a starting system that prevents
the trailing drum from vibrating on cold or hard pavement surfaces at the
beginning of each paving operation, or at transverse joints on bridges or
concrete pavement panels.
Ingersoll-Rand’s patented ImpactSpacing Meter is
standard equipment on the DD-158HFA, as are chamfered, radiused drum edges
to prevent marking. To match travel direction, automatic reversing
eccentrics are used; both vibrating drums on the unit are lifted up and over
uncompacted material as the machine makes its vibratory passes. This reduces
rolling resistance and minimizes the size of the bow wave in front of each
drum, producing a smoother surface and eliminating cracks or tears in the
asphalt, according to the company.
The 185-horsepower DD-158HFA weighs 33,810 pounds
and can generate centrifugal forces up to 44,120 pounds. Vibration
frequencies range from 2,500 to 3,400 vpm.
Ingersoll-Rand
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Rosco
11-Wheel Pneumatic
 LeeBoy’s Rosco line of pneumatic rollers includes a
unique 11-wheel option for the top-of-the-line Tru-Pac 915 model. The
11-wheel option extends the unit’s compaction coverage from the nine-wheel
version’s 68 inches to 83.5 inches.
The machine’s articulated design provides
true-tracking on turns and full-width compaction even in tight areas.
All-wheel oscillation increases kneading action during compaction, and
eliminates floating over low spots for consistent compaction, according to
LeeBoy.
Ballastable up to 30,500 pounds, the Tru-Pac 915
employs hydrostatic drive powered by an 85-horsepower diesel engine; its top
speed is 15 miles per hour.
Rosco
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Bomag
New Highway-Class Roller Introduced
The latest addition to Bomag’s all-new dash-4
generation of asphalt rollers is the 79-inch-wide BW190AD-4 HF. The 13-ton
machine features dramatically slanted drum support legs, high curb
clearance, and a clear view of the entire drum surface. The open design of
the front and rear frames gives the operator an unrestricted view of the
sprinkler system, as well as both drums.
Designed to work in materials as varied as granular
bases and Superpave asphalt, the unit can deliver 40,950 pounds of
centrifugal force in its high-amplitude/low-frequency (2,880 vpm) setting,
and 28,800 pounds of centrifugal force operating at its highest vibration
frequency, 3,600 vpm.
Bomag
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Beuthling
New 3-ton roller
Beuthling has added the 3-ton model B335 to their
line of asphalt rollers this year. The double-drum machine comes with either
a 25-horsepower gasoline engine or a 24-horsepower diesel. It has a
32-inch-wide split front drum and a vibratory 42-inch rear drum. Vibration
frequency is 2,600 vpm producing a centrifugal force of 7,100 pounds. The
machine has a top travel speed of 7 miles per hour and an inside turning
radius of 10 feet to go with a curb clearance of 12 inches and wall
clearance of 1.75 inches.
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Multiquip
Tandem drum ride-on roller
Multiquip’s 3,142-pound AR-13D tandem drum ride-on
roller has a vibratory front drum and can produce 3,100 pounds of
centrifugal force with a vibration rate of 4,000 vpm. It has 35.7-inch-wide
drums, a 39-inch overall width, and can travel at 4.8 miles per hour.
Designed for road repairs and patch work, as well as parking lots and
driveways, the machine features a 24-horsepower diesel engine and a
60-gallon water tank; it is also available with a gasoline engine.
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Vibromax America
10-ton tandem debuts
Vibromax is using 2005 to roll out a
new-from-the-ground-up 10-metric-ton tandem roller, the model W 10. The
22,500-pound unit has 68-inch-wide drums and is recommended for large
asphalt paving projects, including roadways. The W 10 has two vibration
frequencies and two amplitude settings; the high-vibration setting achieves
3,840 vpm to meet Superpave specifications.
Power comes from a 133-horsepower turbodiesel and an
electronically controlled hydrostatic drive system that regulates travel
speeds up to 10 miles per hour. The dual-poly tank water system has a
290-gallon capacity. The operator’s station swivels 180 degrees to provide
visibility to all areas. Also standard: a backup alarm, two-post ROPS/FOPS
canopy, and a two-year or 2,000-hour parts and labor warranty.
Last year, the company added a folding ROPs option
for its model 255 (39-inch drum, 5,800-pound operating weight) and model 265
(48-inch drum, 6,000-pound operating weight); the option allows the operator
to reduce the machine’s total height to 82 inches.
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Sakai
Three high-frequency rollers
 Sakai, pioneer of high-vibration-frequency rollers
in North America, calls its highway-class models “Superpave friendly”
because they combine high vibration frequencies (4,000 vpm) with low
amplitudes to quickly achieve density in mixes that exhibit a tender zone as
they cool. With 4,000 vpm frequency, the 67-inch SW800, 79-inch SW850, and
84-inch SW900 can operate at faster ground speeds than other machines and
still maintain the required 10- to 12-impact-per-foot spacing, according to
Sakai.
Features include Sakai’s counter-rotating vibration
system, which directs forces downward in the material, and the company’s
patented isolator system, which keeps vibration from machine components and
the operator. ExactCompact is an optional onboard system that lets the
operator discover optimum settings for working speed on a test strip, then
program them into the roller. After that, yellow, green, and red lights tell
the operator when to adjust his ground speed to match the correct setting.
Sakai
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Stone Construction Equipment
Small area compaction
 Stone’s 35-inch double-drum drive WolfPac 3100
asphalt roller is designed for finish layers of driveways, parking lots, and
other paved surfaces. It has a 20-horsepower diesel engine, and generates an
impact force of 3,472 pounds, ballasted. Features that enhance its work in
tight spaces include centerpoint articulation and a short wheelbase, high
curb clearance, and minimum wall clearance on both sides. Other features
include a swing-away thermoplastic hood for service access, vibration
isolation, adjustable operator seat and tilt wheel, and a
corrosion-resistant water system with a 40-gallon water tank.
Stone Construction Equipment
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Wacker
Compact rollers have two speeds
Wacker introduced its 2.5-ton RD 27 series a year
ago in 39-inch (RD 27-100) and 47-inch (RD 27-120) versions. The machines
have two vibration frequencies, allowing the operator to select high
centrifugal forces for compacting sub-base and other materials, or low
centrifugal forces for compacting asphalt lifts. A streamlined hood enhances
visibility to the front, rear, and sides, and a standard lighting system
improves visibility during low-light and nighttime applications.
Wacker
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Ammann
New compacts, new company
European-based Ammann has improved its line with the
addition of two utility-sized asphalt rollers, the AV 16 and AV 26, and the
acquisition of Czech compaction specialist Stavostroj earlier this year.
The tandem drum AV 16 features 35.4-inch drums and
what the company calls a “full-flush” cantilevered chassis with a 2-inch
offset for working up against obstacles. The 3,747-pound machine has two
vibration frequencies, a 20-horsepower diesel engine, and a pressurized
25-gallon water system.
The 6,195-pound AV 26 has two 47-inch drums and 2.5
inches of offset for working near obstacles. It has two vibration
frequencies and two amplitude settings, a 33-horsepower diesel engine, and a
pressurized 53-gallon water system.
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LeeBoy
Split front drum
 LeeBoy says the split front drum on its 2.5-ton
(static-weight) vibratory roller eliminates pushing or tearing of the mat on
turns. The LeeBoy 400 has a 40-inch front drum and a 44-inch rear drum. Its
2600-vpm vibratory system is said to produce 2.75 times the unit’s static
weight in compaction force. Recommended for applications from streets and
parking lots to driveways and sidewalks, the roller features a 40-horsepower
diesel engine, 80-gallon pressurized water system, and a vandalism
protection package.
LeeBoy
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Reprinted from Better Roads Magazine
May 2005 |
