Hitachi Construction Machinery announces the sale from September 1, 2008, of
the EH3500AC II rigid dump truck (Gross Machine Weight 325 tons, 185-ton
payload class) for international use in large-scale mining.

The EH3500AC II utilizes AC drive technology from Hitachi, Ltd. using its
most recent Insulated Gate Bipolar Transistor (IGBT), and based on the
inverter technology used in high-speed railway trains.

Power transfer to the road is more efficient using the AC drive system. By
eliminating heavy rotating components such as the transmission and
differential components found in mechanically driven trucks, more of the
power supplied by the diesel engine is transferred to the haul-road, and the
maintenance costs for lubricating oil for these devices are reduced. Hitachi
’s brushless AC travel motors along with the latest Hitachi IGBT inverters
reduce repair costs and deliver stronger, more controllable electric braking
power (retarding) compared to the EH3500AC II’s DC-powered predecessor.

The EH3500AC II is powered by a Cummins QSK 50 engine that is known for
extended service life and fuel efficiency. This engine has been certified to
the Tier 2 (U.S.) EPA Emission regulation.

The EH3500AC II includes the following features:

1. High Mobility and Productivity
a.. The AC drive system, with its load-responsive IGBT inverter, excels in
controlling travel motor speed and torque. Whether taking off from a
standstill, ascending grades, or performing steering maneuvers, the system
delivers an optimal, individual amount of power to each of the travel motors
for smooth, quick operation.
b.. The powerful electric braking system is manually or automatically
applied for stable retardation of the hauler, without any need to apply the
service brakes, resulting in decreased repair costs for the service brakes
and improved component life.
c.. Smooth speed control performance and stable braking performance bring
speedy on-site hauling cycles, contributing to high productivity.
2. High Controllability
a.. A large color LCD display, similar to that used on the Dash-6 Hitachi
excavators, indicate travel speed, engine RPM, payload and fault information
for improved operability.
b.. The powerful electric drive system reduces operator fatigue as the
system is easily controlled using a 3-position shift lever that provides
forward, neutral and reverse, along with single accelerator and retarder
pedals that are used to control hauler speed.
3. High Reliability and Safety
a.. The rugged box-section main frame, water-cooled control panel, and
travel reduction gear oil cleaning and cooling unit are all included in the
standard truck, ensuring superior reliability.
b.. The standard ROPS/FOPS cab complies with the requirement of ISO 3471
and 3449. Four emergency engine stop switches located at various points
outside of the operators cab and a 630 mm wide access ladder are provided
for safe machine operation, inspection and maintenance. And the cab is
equipped with a rear view monitor like that used in Hitachi ultra-large
hydraulic excavators.
4.Superior maintainability
a.. The front suspension cylinders (replaceable without removing front
wheels), automatic lubricating system, and outboard mounted rear service
brakes provide easier maintenance.
Brief Specifications
Brief Specifications
Model EH3500AC II
Payload class 185 ton
Body capacity (heaped 2:1/struck) 111/74 m3
Net machine weight (with standard equipment) 140,000 kg
Gross machine weight (with standard tires) 325,000 kg
Engine Cummins QSK50
Gross engine power, kW/min-1(PS/rpm) 1,491/1,900 (2,000/1,900)
Overall length 13,500 mm
Overall width (including mirrors) 8,010 mm
Overall height 6,770 mm
Max. travel speed 56 km/h
Tire size 37.00R57

All units are SI international standards; those in parenthesis are former
Japanese standard units.

Japan’s major sea transport company Mitsui OSK Lines says that it will launch a container vessel between Japanese port Niigata and Russian port Vladivostok by September.
The new regular service by the Primorye Maru is expected to help transport automobile parts, construction machinery, tires etc. to Russia.

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Hitachi Construction and Mining Products introduces the new reduced-tail-swing Zaxis 135US-3 excavator at ConExpo 2008.Short-tail-swing excavators continue to grow in popularity. They are very productive because they can work in more confined areas such as near buildings and obstructions than conventional excavators. They can even work within a single lane of traffic. Due to their ultra-short counterweight, the units provide less risk of damage to the working environment as well as to the machine itself. This allows the operator to concentrate more fully on his tasks, increasing productivity. And speaking of productivity, their performance is virtually identical to their larger counterparts with the Zaxis 135US-3 comparable to the Zaxis 120-3.

Enhanced Cab
The ZX135US-3 replaces the previous 135US model. Incorporating Tier-3 standards, the new 135 also comes with an enhanced operator environment. Low-effort, short-throw levers are easy to use. This fingertip control also reduces operator fatigue. The multilingual widescreen LCD color monitor provides maintenance, attachment, and operational information. An optional air-suspension heated seat is also available.

The cab is prepped for auxiliary hydraulics. Thanks to regenerative hydraulics, arm roll-in and the boom lower/arm movement are faster. Travel speed has been increased. Multifunction operations are smoother than ever, because of the HIOS III system which further enhances the precise, smooth control for which Hitachi excavators have been known.

Productivity Improvements
The new ZX135US-3 also has greater horsepower and excellent fuel economy. Some of the retained features which help reduce operating costs include WC thermal spraying (tungsten carbide) at the arm-bucket joint for greater wear resistance at its contact surface with the bucket and HN bushings.

Source: Hitachi Construction Machinery Co., Ltd.

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Operating the Hitachi Zaxis 850LC-3 for the first time can be an eye-opening experience. Many wonder how Hitachi managed to package so many of the larger EX1200’s engineering characteristics into an 850 body!The 850LC-3  is suited for quarries, demolition, and heavy construction jobs. The pairing of Isuzu’s Tier-3-certified 532-net-peak-hp (397 kW) AH-6WG1XYSA-03 engine with Hitachi’s HIOS III hydraulic system has increased engine output as well as bucket and arm digging forces. Operators can tailor machine performance to the job by selecting one of three power modes — Economy (E), Power (P), or High Power (HP). HP ensures efficient arm roll-in during deep excavation.

Configuration Options
Weighing 185,120 pounds (84,152 kg), the Zaxis 850LC-3 comes standard with a 14-ft. 5-in. (4.4 m) arm, a 29,321-lb. (13,300 kg) counterweight, and 36-in. (900 mm) double grouser shoes. Additional arm lengths that can be ordered are 12-ft. 1-in. (3.7 m) and 17-ft. 9-in. (5.4 m). Also available are a 23-ft. 4-in. (7.1) mass excavating boom with a 9-ft. 8-in. (2.95 m) arm and a 32-ft. 10-in. (10 m) boom. Thirty-inch (750 mm) and 40-in. (1020 mm) shoes are available as well.

Productivity Features
The Hitachi HIOS III hydraulic system uses arm and bucket regenerative systems to boost front attachment speed. A boom mode switch, when turned on, reduces vibration and impact shock-loads due to less lifting or pulling of the body, increasing comfort.

The CRES II cab sports a wider, more comfortable seatback, more foot room, and 47-percent more glass on the right-side window compared to its predecessor for excellent visibility. The cab is pressurized to keep dust out. Pedals have been reshaped for easier use. And the cab structure has been strengthened to protect against greater external pressures.

The large color LCD multifunction monitor is multilingual. The digital screens can provide instant informational records from the on-board monitoring system. When attachments are used, instead of climbing on the boom to make valve adjustments, the operator can make simple oil-flow adjustments from the seat using the monitor. Short-throw, low-effort levers mean fingertip control with less operator fatigue.

Increased Reliability
Undercarriage and front component improvements have been made as well. For example, the loading capacity of the swing circle has been increased by adding more ball bearings to the swing circle. The boss diameter of each track link is bigger. Upper and lower rollers have been widened to increase contact areas while idlers and sprockets have been increased in diameter for more durability. Front component pins are larger, and the arm and boom are thicker and made from stronger materials.

Easier Maintenance
With the Dash-3, Hitachi has simplified many maintenance chores. A wider service walk makes it easier to get from the cab to the rear. The spacious central passage provides easy access to the engine. The radiator and oil cooler sit side by side instead of in-line for easy demounting. This makes it easier to clean around the radiator and oil cooler while improving oil cooling capacity. In addition to a pre-filter, dual main fuel filters are standard, reducing fuel line clogging.

Service intervals are 500 hours for the engine oil and 5,000 hours for the hydraulic oil. Hydraulic oil filter intervals have been extended from 500 to 1,000 hours.

Cool on Demand
The ZX850LC also has a cool-on-demand cooling system  that runs the fan at the speed required to keep the excavator running at peak performance. This also reduces noise and saves fuel. The fan direction can be reversed from the cab, enabling the operator to keep the cooling cores clean and the machine up and running.

As a bonus, three years’ worth of Hitachi’s ZXLink™ Ultimate telematic remote machine monitoring system will be included in the price of the machine, when purchased from an authorized Hitachi dealer.

Source: Hitachi Construction Machinery - America

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MOLINE, ILLINOIS (January 11, 2008) - Hitachi Construction Products will roll out two new excavators at ConExpo 2008, as well as showcase the company’s ZXLink™ telematics machine monitoring system.

Located in the North Hall of the Las Vegas Convention Center, Booth N-1541, Hitachi will display the new reduced-tail-swing ZX135US-3 and the new ZX200W-3 wheeled excavator equipped with a wrist attachment. In addition to these new models, there will be a ZX350LC-3 and the large, 84-metric-ton ZX850LC-3 equipped with the Ultimate version of ZXLink.

ZX135US-3
The ZX135US-3 replaces the 135US. Incorporating Tier-3 emission standards, the new 135 comes with the CRES II cab which is larger than before and has a wider seatback, more legroom, and more glass on the right-hand side for improved visibility. Low-effort, short-throw levers are easy to use. This fingertip control also reduces operator fatigue. The multilingual widescreen LCD color monitor provides maintenance, attachment, and operational information. An optional air-suspension heated seat is also available.

The cab is prepped for auxiliary hydraulics. Thanks to regenerative hydraulics, arm roll-in and the boom lower/arm movement are faster. Travel speed has been increased. Multifunction operations are smoother than ever because of the HIOS III system which further enhances the precise, smooth control for which Hitachi excavators have been known.

The new ZX135US-3 also has greater horsepower and excellent fuel economy. Some of the retained features that help reduce operating costs include WC thermal spraying (tungsten carbide) at the arm-bucket joint for greater wear resistance at its contact surface with the bucket and HN bushings.

ZX220W-3
The new ZX220W-3 is also a Tier-3 compliant excavator that comes with wheels, not tracks. Mobile and maneuverable, it can quickly cruise from spot to spot and is pavement-friendly.

In addition to the new CRES II cab and other reliability- and power-boosting improvements common to all Dash-3 excavators, the ZX220W-3 has increased the maximum travel speed, provided greater acceleration performance, and widened the oscillation angle of the axles for a smoother ride over rougher terrain. Greater stability ensures that this machine can move Jersey barriers without the need to extend outriggers. The machine can be customized with a variety of boom, blade, outrigger, and bucket options.

ZXLink-equipped ZX850LC-3
Hitachi’s large ZX850LC-3 will be equipped with the Ultimate version of Hitachi’s ZXLink telematics machine monitoring system. Available in three levels — Standard, Advanced, and Ultimate — the Ultimate version comes standard on the Dash-3 ZX450, 650, and 850 excavators, with three years of service included in the price of the machine, when purchased from an authorized Hitachi dealer.

The Deere-Hitachi relationship
Hitachi and Deere will share the same booth space at ConExpo 2008. While the origins of the Deere-Hitachi relationship can be traced back to the 1960s, the two companies have maintained a joint marketing agreement since 2002. Hitachi sales, marketing, and many product-support activities in the Americas are managed by the Construction & Forestry Division of John Deere. Hitachi excavators are distributed and sold throughout the U.S. and Canada by a growing number of dealership locations.

Deere and Hitachi produce excavators at their Kernersville, North Carolina, factory — a 50/50 joint venture established in 1988. The Hitachi models produced there are the ZX200LC-3, ZX240LC-3, ZX270LC-3, and ZX350LC-3 units. All other Hitachi-branded construction excavators are produced in Japan. The purpose-built Forester models are produced at a Deere-Hitachi jointly owned plant in Langley, British Columbia.

Hitachi also sells rigid-frame mining trucks and mining shovels. Trucks from the 40- to 350-ton class are made in Guelph, Ontario. The huge mining shovels and backhoes are produced in Japan.

Source: Hitachi Construction Machinery Co., Ltd.

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