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Water treatment system
OilTrap Environmental has introduced the
ElectroPulse system for treating wash-water generated from washing vehicles,
equipment, and stormwater run-off in the asphalt industry. The compact,
modular system uses electrocoagulation to remove contaminants like
emulsified oil, TPH (Total Petroleum Hydrocarbon), suspended solids, and
heavy metals without the use of filters or chemicals. It can process up to
200 gallons per minute, producing water that can be recycled or discharged
to a sanitary sewer or surface-water, according to the company.
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Curb and gutter re-entry
 Terex|CMI
has officially reentered the curb and gutter market with the introduction of
the CB2003 last month. Available with a variety of profile inserts, the
paver can be used for curb and gutter, barriers, cart paths, and sidewalks.
Weighing nearly 25,000 pounds, it is powered by a 133-horsepower engine and
features all-track steering.
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Faster hydraulic coupler system
Liebherr has
completed the North American rollout of its Likufix automatic coupler system
for excavators. The system incorporates a quick coupler system with an
automatic hydraulic coupling system. It uses two patented connecting
components that are attached to the existing Liebherr quick coupler adapter
and a hydraulic attachment such as a hammer or grapple. It allows the
operator to change hydraulic attachments in seconds without leaving the cab,
according to Liebherr.
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High-vibe
utility roller
 Sakai
has unveiled a 35.4-inch-wide compact asphalt vibratory roller that boasts
the same 4,000-vpm frequency range found on its larger machines. The new
CR270 develops centrifugal forces up to 2,975 pounds and can deliver 10
impacts per foot at a ground speed of 4.55 miles per hour. It also features
hydrostatic drive, dual-drive drums, and a high-capacity spray system.
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The next step in GPS
automation
Topcon has broken
new ground in Global Positioning Satellite reliability and precision with
the unveiling of its Paradigm G3 chip which can track all signals from all
three satellite positioning systems, including the European Union’s brand
new Galileo system launched in December. When Galileo is fully operational,
Topcon users will have access to more than 80 positioning satellites,
reducing problems with lost signals caused by canyon affects and improving
accuracy and precision. The chip is said to be much faster than current
chips, about 75% smaller, and uses less power.
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Programmable width changes
 Gomaco
has announced that its V2 dual mold system is now available with an optional
auto-width adjustment package to provide sensored control of on-the-go
paving width changes. The new feature allows a proportional control to
change the width of the mold while paving to produce a tapered slab.
Stringline is set to follow the desired tapered slab, and sensors on the
paver use the string line to control cylinders for extending the frame and
side-shifting the mold. The operator engages the automatic system with the
switch of a button as the machine approaches a width transition.
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Planning the pour
Gomaco has added
a new dimension to its Gomaco Smoothness Indicator (GSI) technology,
introduced last year to provide smoothness readings for wet or cured
concrete and asphalt slabs. GSITools is a new software application that
utilizes data gathered with the GSI before paving takes place to provide a
grade accuracy analysis of the subgrade and/or the stringline. The software
can provide an estimated material yield for the project, and pinpoint high
and low spots in the subgrade, according to Gomaco.
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Optional loader available
 Morbark
is now offering an optional self-contained loader for its Predator Shredder.
The company says the self-loading feature reduces the capital costs of
feeding the slow-speed, high-torque primary waste reduction shredder by
eliminating the need for a second machine.
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New backhoe-loader series
 New
Holland is marking the 40th anniversary of its first backhoe loader with
the introduction of the new five-model B-Series. The series includes the B95
and B95TC (Tool Carrier) in the 14-foot size class, and the B95LS (Long
Reach), B110 and B115 in the 15-foot class. The series uses 4.4-liter
turbo-charged engines rated from 95 to 110 gross horsepower. The new
machines are designed to deliver the most horsepower and breakout forces in
their classes, and to provide excellent reach at dump height to make grapple
and bucket work easier according to New Holland. Other hallmarks include
high-capacity, fast-response hydraulics, and superb visibility due to a
narrow backhoe boom and a higher operator station than competing machines
offer.
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New mid-range concrete pavers
 Terex
Roadbuilding has entered the mid-range concrete paver market with the
introduction of the two-model Terex|CMI SF3500B Series. Both models are said
to feature massive frame section construction to deliver minimal deflection
over their entire 12- to 33-foot paving widths. They also feature Hydra-Mation
grade control system used on other Terex models. Terex says the control
system has just two moving parts and delivers 0.10-mm precision for
elevation, steering, and cross slope control.
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Electronic density gauge
 Humboldt’s
new Electronic Density Gauge is a non-nuclear alternative for determining
the physical properties of compacted soils used in roadbeds and foundations.
The portable, battery-powered instrument measures and displays wet and dry
density, gravimetric moisture content, and percent compaction. Humboldt says
it delivers performance and measurement results highly comparable to those
yielded by traditional methods, including nuclear gauge, sand-cone, and oven
drying.
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Bridge hauling trailers
Roger Brothers built two trailers for Pennsylvania
contractor Edward Kraemer and Sons to haul more than 1,000 precast bridge
segments weighing 100 tons down a steep grade to the Susquehanna River. The
trailers were subject to 18 months of continuous service and had to be
resaleable when the job was complete. To handle the work, company engineers
designed a five-axle, 100-ton-capacity fixed gooseneck trailer with air lift
suspension on the fifth axle and spring walking beam suspension on the first
four axles. The trailer’s deck size is 35 by 10 feet with pullout outriggers
to handle the extra width of the bridge segments, each of which measure
57-feet long by 13-feet wide by 8.5-feet high.
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New options add versatility
 Terex
Roadbuilding has introduced new optional side kits for the Terex|CMI
SF2204B HVW variable width paver that enable it to build barrier and parapet
walls, curb and gutters, and sidewalks and cart paths. Initial installation
of the entire single side-mount system is said to take a day, and molds can
be switched in less than an hour. The company says the 53,000-pound,
250-horsepower machine has the heft and power to build the larger barrier
walls sought by many municipalities today.
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New snow removal solution
 Bobcat
has rolled out a new snow pusher attachment that allows compact equipment
operators to clear large volumes of snow from parking lots and construction
sites. Available in 94- and 120-inch widths, the pushers feature end wings
to keep the snow within the width of the attachment and prevent it from
spilling over the sides. The snow pushers are approved for use with larger
Bobcat skid-steer loaders, compact track loaders, all-wheel steer loaders,
and the Toolcat utility work machines.
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Moves easily on bridges
 Aspen
Aerials claims its new A-62 bridge inspection unit is capable of maneuvering
around bridges unlike any other machine. It has a horizontal reach of 62
feet and needs no outriggers. Its unique features include a telescoping
fourth boom and a 180-degree rotating platform that enables operators to get
into tight areas behind deep beams. A microprocessor control system shows
unit operation and individual function performance on a color display. A
second rotating turntable has an automatic leveling system that adjusts for
bridge slopes while providing smooth platform movement.
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Gets to the stump faster
Morbark says its
new D 76 SP four-wheel-drive stump grinder gets to the stump faster and
grinds it quicker at minimal operating costs. It features a 76-inch boom
swing arc, widest in its class, to reduce how often it has to be
repositioned. Its power transfer system delivers 95% of the engine power to
the wheel cutter, the most efficient in the industry, according to Morbark.
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High power-to-weight ratio
Atlas Copco
says its new 795-pound PB 420 Penta Series hydraulic breaker brings a high
power-to-weight ratio and quiet operation to skid steers, mini excavators,
and backhoe loaders used in road construction and demolition activities. The
unit delivers an impact rate of 1,050 blows per minute and its VibroSilenced
damping system is said to reduce noise by up to 18 dB(A) compared to similar
systems.
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E-series backhoes debut
Caterpillar
has rolled out the first three models in its new E-series backhoe-loader
line. The 416E is designed for the economy minded while the 420E and 430E
are said to offer industry-leading backhoe performance. Both of the
high-performance machines are also available in a tool carrier configuration
with parallel lift loader linkage. The 74-horsepower 416E and the
89-horsepower 420E both have a standard backhoe digging depth of 14 feet, 4
inches, while the 97-horsepower 430E has a digging depth of 15 feet, 5
inches.
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Stability protection for mixers
  Mack and Bendix have collaborated on an electronic
stabilizing system for mixer applications on the Mack Granite chassis. The
system uses existing ABS wheel speed sensors, along with steering, yaw and
lateral acceleration inputs to deactivate the throttle and selectively apply
the brakes in sharp curves, sudden lane changes, or obstacle avoidance
maneuvers. The system was demonstrated at World of Concrete last month using
outriggers to keep the demo truck upright when the system was off.
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Reprinted from Better Roads Magazine
March 2006 |
