FLEETS

Hitachi uses hydraulics for fuel efficiency

Enhancements include an improved hydraulic system and 30% greater traction force

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The HIOS-V hydraulic system enhances efficiency in the swing, boom lowering and arm bucket roll-outs, enabling the fuel efficiency gains for the new ZX490LCH-7, ZX530LCH-7, ZX690LCH-7 and ZX890LCH-7 models.

The new range of Zaxis-7 excavators are compliant with the European Union's Stage V requirements thanks to a combination of the SCR (selective catalytic reduction) system, DOC (diesel oxidation catalyst) and CSF (catalysed soot filter).

The undercarriage of the ZX490LCH-7 has stronger components than previous iterations to prevent potential damage, as well as 30% greater traction force and increased steering force for manoeuvrability on sites with inclines.

Hitachi Construction Machinery Europe president Makoto Yamazawa said the OEM has also "improved on previous generation machines to enhance the operator's experience in the cab". The new Zaxis-7 range excavators include a synchronised motion feature for the seat and console to reduce operator fatigue.

Tbe range is equipped with Hitachi's remote monitoring systems, Owner's Site and ConSite. 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 and can flag up any potential issues.

The quality of the engine and hydraulic oil is monitored continuously and data is transmitted to Global e-Service, which allows reducing maintenance and unscheduled downtime.

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