Hitachi has introduced the largest Zaxis-7 model in its super-long front excavator range. The ZX490LCH-7 HE16LD with 16m reach has a longer boom and arm and heavier counterweight than the standard ZX490-7 model. It is ideal for excavation work, as well as dredging rivers and lakes, bank maintenance and lighter, slope-finishing tasks. Due to the proportions of the boom and arm, the 49-tonne model can also be used for loading, as trucks can be conveniently positioned close to the machine. Assembled at HCME’s factory in Amsterdam, The Netherlands, this special application machine has been designed to meet the needs of European customers.
The Stage-V compliant model has a cab with first-class comfort and safety features. Its reliability, efficiency and productivity provide owners with opportunities to increase profits and reduce costs.
The manufacturers claim an improved production of 7% (in PWR mode) for the ZX490LCH-7, which has the same size engine as the larger ZX690-7 model. An improved front speed for loading should also increase productivity – a result of the new HIOS V hydraulics system, which is fine-tuned for control of super-long-front applications and also reduces fuel consumption.
The fuel efficiency of Zaxis-7 large excavators can also be controlled by using the new ECO gauge, visible on the cab’s 8” monitor. The ZX490-7LCH SLF is Stage V-compliant thanks to the combination of the SCR (selective catalytic reduction) system, DOC (diesel oxidation catalyst) and CSF (catalysed soot filter).
Feel the difference
The spacious cab is a grerat working environment. It offers operators comfort and quality, with reduced noise and vibration levels in the cab. New features include the synchronised motion of the seat and console – to reduce operator fatigue – and the adjustable console height with three positions to choose from. The adjusted boom and arm speed (hydraulic flow) allows for a smooth performance, while easy operation comes from the ergonomic design of the console and switches, and the hi-res anti-glare 8” screen is also easier to view.
Job site safety is enhanced by the view from the Zaxis-7 SLF excavator. Operators can control their own safety, as well as that of those around them, thanks to the Aerial Angle camera system. It provides a 270-degree bird’s-eye view and users can choose from six image options to see the machine’s immediate environment. When working in challenging conditions, new LED work lights and a windscreen wiper with an increased sweeping area further improve visibility.
To ensure optimum stability, the ZX490LCH-7 SLF has a heavier HD- counterweight (9.8 ton) and 500 mm extendable undercarriage. When the undercarriage is retracted, this also contributes to easy transport.
Tested rigorously at dedicated facilities in Japan, Hitachi Zaxis-7 machines have been built to last and maximise uptime. New engine parts enhance reliability, oil leakages are less likely and the durability of the trackframe has been improved. The robust undercarriage of the ZX490LCH-7 prevents potential damage.
Easy maintenance and cleaning features on all Zaxis-7 large excavators save operators and owners both time and money. The fuel filter is now integrated with the water separator, and the larger radiator improves heat dissipation and is easier to clean.
Hitachi’s remote monitoring systems, Owner’s Site and ConSite, give them access to data and tools. Both systems send operational data via GPRS or satellite from the excavator to Global e-Service on a daily basis. ConSite summarises the information in a monthly email, while the ConSite Pocket app shows real-time alerts for any potential issues.
The quality of the engine and hydraulic oil is monitored continuously by a unique Hitachi innovation. Two sensors detect if the oil quality has deteriorated and data is transmitted to Global e-Service. This innovative feature provides customers with peace of mind on the condition of their excavators, and reduces maintenance and unscheduled downtime.
“This is the latest addition to our super long front product range, which ranges from eight to 50 tonnes, and from 10 to 22m reach,” says Burkhard Janssen, Product Manager Special Applications and New Technologies at Hitachi Construction Machinery (Europe) NV.
“It shares many of the advantages of our Zaxis-7 large excavator range, offering an enhanced experience in the cab for operators, and improved productivity and fuel efficiency to help owners improve their profits. It is also provided with life-cycle support from Hitachi, ensuring ultimate peace of mind.”
Model code ZX490LCH-7 SLF 16 m
Engine rated power 296 kW (ISO14396)
Operating weight 51 500 – 52 900 kg
Maximum digging reach 16 570 mm
Maximum digging depth 11 910 mm