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Earth-Moving
Compact excavator
Gehl introduces the 3-ton model
383Z zero-tail-swing compact excavator. This excavator features
zero-tail-swing maneuverability, which allows the machine's
superstructure to rotate entirely without the tracks. The 383Z can
operate close to walls and obstructions without risk of contact. Its
small size, weighing 7,826 pounds with a canopy and 8,002 pounds with a
cab, and maneuverability make it suitable for operating on congested
sites without obstructing traffic. The canopy and cab meet or exceed all
ROPS, FOPS and TOPS requirements for increased safety.
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Lifting
Telescopic handler
Manitou introduces the MT 8044
telescopic handler, which lifts 7,000 pounds to the full lift height of
44 feet, and 8,000 pounds to 37 feet. The machine features a welded
box-section design boom and increased operating capacities. Rear axle
stabilization is provided, which improves stability when the boom is
raised more than 60 degrees or when the parking brake is applied. The MT
8044 comes standard with a 115-hp engine with automatic engine shutdown
protection. Other standard features include a three-speed power-shift
transmission, three steering modes and a quick-attach mounting system.
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Transport platforms
The HEK GTP Dual transport platforms from Alimak Hek are
designed for the vertical transport of both personnel and materials on
the construction site. The HEK GTP Dual 500 is a single mast machine for
smaller construction projects with limited space and can hold 1,100
pounds of payload capacity including three people. The HEK GTP Dual 1500
is a twin mast machine designed for the transport of large-volume
materials and features a payload capacity of 3,300 pounds including 7
people. The large platforms with wide opening gates facilitate handling
of large-sized materials such as scaffolding, plasterboards, glazing
panels and palletized material.
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For Contractors
Articulated dump trucks
John Deere's D-Series
Articulated Dump Trucks (ADTs) feature updates to the transmission,
operator station improvements, electrical enhancements and a new engine
in the 250D and 300D. The transmission controller features improved
shift quality and clutch control. A new electrohydraulic tip control
enables operator-programmed maximum dump body tip height. Driveline
assist automates repetitive actions during dump body tip. With a
significant weight advantage and the best payload-to-weight ratio, Deere
trucks continue to burn less fuel, particularly in high time-on-grade
applications and in poor conditions.
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Gasoline engines
The new 34-, 36-, and 38-hp gasoline engines from Kohler are designed to provide
more power to accommodate larger and more sophisticated equipment. These
new air-cooled, V-twin Kohler Command PRO models at 999 cc are available
in both horizontal- and vertical-shaft configurations and meet the new
EPA Tier 3 and CARB emissions requirements.
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Pneumatic pick hammer
The TEX 10 pneumatic pick hammer from Atlas Copco Construction Tools
features a long piston stroke and relatively low impact frequency. The
tool is designed for light demolition and controlled chiseling of
concrete and hard brick, especially close to walls and in confined
spaces. The TEX weighs 23.6 pounds and has a length of 19.8 inches. The
unit accepts a 7/8-inch by 3 1/4-inch standard hex-shaped tool shank and
features a kick-latch retainer that facilitates quick tool changing on
the job. The pick hammer requires 36 cfm of air and delivers a maximum
impact frequency of 1,350 bpm.
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Dump trailers
Bri-Mar's low-profile
heavy-duty dump trailers combine the functions of dump trucks and
trailers to assist general and landscape contractors with their hauling
and dumping needs. The dump trailers are available in four models and
are suitable for hauling wood, stone, dirt and light equipment. All
models have 81.5-inch wide beds that are 12-, 14- or 16-feet in length.
A deck height of 27 to 31 inches and 6-foot ladder ramps facilitate
loading and unloading of equipment in tight spaces. The tires and
fenders are located outside the frame and body of the trailer, producing
a wider, more stable wheelbase and lower center of gravity.
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Wireless sensors
Hirschmann
introduces the TRS 05 wireless system upgrade, which is designed to give
crane owners the flexibility to incorporate wireless sensors into
existing hardwired systems. The TRS 05 is compatible with most
Hirschmann/PAT systems on hydraulic or lattice boom cranes. The module
is capable of monitoring up to four wireless sensors at one time and
utilizes the existing console and hardware.
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Mechanic truck
The Dominator IV mechanics truck from Iowa Mold Tooling features enhancements
to give operators more comfort and mobility around the vehicle. The
Dominator IV can accommodate an 80,000-pound crane and is designed to
perform field maintenance on heavy-duty equipment. The mechanics truck
also features improved tools and parts access, and patented inverted
A-frame floor structure that reduces the weight of the body and allows
the truck to haul more payload.
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For Homeowners/Light Contractors
Chain saw
Husqvarna's 460 chain
saw is powered by a 3.7-hp engine to deliver high power and torque. The
460 is designed for landowners and part-time users who require a
high-powered heavy-duty saw. The saw features a precision-forged
three-piece crankshaft, heavy-duty muffler and a metal clutch cover. For
better control, the 460 is equipped with the company's LowVib
anti-vibration system that helps isolate the handles of the saw from the
engine, resulting in low vibration levels.
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Product Spotlight
Saudi gold mine strikes pay dirt
with diesel power system from Cummins Power Generation
With the largest mineral resources of any country in the Gulf
region, Saudi Arabia is a land rich in gold and other precious metals as
well as petroleum. But most of the gold deposits are located in remote
areas far from the country's electric grid. This makes the mining and
processing of the ore at these sites dependent on on-site power
generation. The Bulghah gold mine began production in late 2002, as one
of the resources surrounding the existing Al-Sukhaybarat gold mine --
thought to be part of the fabled King Solomon's Mines. Located 550 km
(342 miles) northwest of Riyadh, the Bulghah gold mine generates all of
its electric power using Rental Power units from Cummins Power Generation.
Operating 24 hours a day and 365 days a year, the Bulghah gold mine
relies on self-generated electricity to power a vast array of pumps,
conveyor systems and crushers as well as lighting and all miscellaneous
electric equipment at the site. Bulghah is an open-pit mine and uses the
"heap leach" method of gold extraction. An elaborate electric-powered
conveyor system transports the crushed gold ore to a plastic-lined pit
to create a large pile of crushed ore. A solution of chemicals that
dissolves the gold in the ore is pumped over the heap and allowed to
filter down through the pile where the solution is collected and further
refined to produce pure gold. Using this method, the mine produces
approximately 82,000 ounces of gold annually.
Complete prime power system
Supplying electricity for this massive operation is a power system
composed of seven CP1250-D6 containerized PowerCommand generator sets
from Cummins Power Generation. Each generator set is prime-rated at
1,000 kW for a total system capacity of 7 MW. Depending on the
electrical load, only five or six of the generator sets operate at any
given time. This allows at least one generator to be offline for
maintenance, or in a standby mode, thus guaranteeing a higher level of
reliability for a power system that must run continuously.
"The owner of the mine did not want to undertake the day-to-day
operation of the power system, so they contracted with our distributor
in Saudi Arabia to install, commission and operate the system," says Don
Watson, rental director for Cummins Power Generation in Europe, the
Middle East and Africa. "The station has been operating for over three
years already without a single loss of power or interruption of the
mining or processing."
Local Cummins distributor maintains and operates
Under the operating agreement, General Contracting Company, the Cummins
Power Generation distributor in Saudi Arabia, operates the system and
performs all the necessary maintenance. Local environmental conditions
can be harsh. Blowing dust can clog air filters, and high summertime
temperatures reaching 55 degrees C (131 degrees F) require careful
attention to generator maintenance. Oil and filter changes are made
after every 250 hours of operation.
The seven generator sets are powered by the Cummins KTA50-G3 engine, a
50 liter diesel engine used in thousands of power generation
installations worldwide ranging from on-site prime power to emergency
standby power for critical applications. Operating at 1800 rpm and
producing electricity at 60 Hz, the generator sets are easy to start,
synchronize and run due to the digital PowerCommand control systems on
each generator set. All-digital control improves reliability under
extreme operating conditions by significantly reducing analog components
and single points of failure.
The power system is installed as a long-term equipment rental for a
period of ten years that includes an operating and maintenance agreement
with the Cummins Power Generation distributor in Saudi Arabia.
Power system fits plans and pleases customer
Saudi Arabia has spearheaded development of the mining sector as part of
a program of diversification away from petroleum. The government's
objectives for the mining sector include establishing industries for
extracting and processing the minerals, and developing the
transportation infrastructure. It is estimated that Saudi Arabia has
close to 20 million tons of recoverable gold ore, and according to a
government web site, non-oil mineral activity is expected to grow at a
rate of 9.1 percent annually.
The operators of the Bulghah gold mine are pleased with the reliable
operation of their 7 MW prime power system from Cummins Power
Generation. It is one of the ways that Cummins Power Generation is
helping companies worldwide to operate efficiently and economically in
areas outside the reach of today's electric grid.
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