New Hitachi ZX690LCH-6 offers exceptional durability without compromising on efficiency

Hitachi Construction Machinery (Europe) NV (HCME) has launched the ZX690LCH-6 large excavator. Designed and engineered to meet the demands of large construction sites and quarries, it offers the highest level of durability without compromising on efficiency.

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The new Zaxis-6 model offers exceptional reliability and outstanding availability, and has more than 200 redesigned features and improved components. It incorporates unique Hitachi technology developed specifically for the new large excavator range, and offers a high level of comfort and safety for operators.

In line with Hitachi’s overall goal to build the ultimate excavator, the ZX690LCH-6 has been designed with durability in mind. The boom has been reinforced with thicker plates, and the undercarriage consists of robust components including the track link, master pin, idler pedestal and bracket, and upper roller bracket.

The new Zaxis-6 large excavator incorporates other high-quality components such as the in-cab console, which is made of weather-resistant AES-grade resin that prevents damage from UV rays. The upper structure has high-quality sealant (around the cooling package) and acoustic materials to eliminate any deterioration caused by heat. These ensure the machine’s long-term cooling and low-noise performance.

HIOS IIIB technology developed by Hitachi offers exceptional efficiency. It uses two pumps and control valves to reduce fuel consumption and cut costs. The ZX690LCH-6 can save up to 4% fuel in PWR mode, with the same productivity as the previous model. This hydraulic technology also has a positive impact on productivity, due to the efficient swing, boom lowering, arm and bucket roll-out.

The after-treatment device, which results in fewer emissions and a quieter performance, is another example of advanced technology. It consists of a DOC (diesel oxidation catalyst), SCR (selective catalytic reduction) system and silencer. The SCR system injects urea through a mixing pipe into exhaust gas to reduce nitrous oxide NOx. Pollutants are also reduced by the variable geometry turbocharger and high volume-cooled exhaust gas recirculation system (EGR).

Engine oil and coolant levels can be checked from the cab of the new ZX690LCH-6 for the convenience of operators. Visibility of the job site is enhanced with the rear-view camera, and the optional OPG front guard has fewer and smaller bars to minimise blind spots. The new handrail on the deck and the standard battery disconnect switch improve safety during maintenance.

Burkhard Janssen, General Manager Product Management & Engineering at HCME, says, “Hitachi large excavators have always been market-leading products and the ZX690LCH-6 is no exception. It offers a comfortable working environment for operators, and is fast and precise thanks to the efficiency of the hydraulic system. It delivers low fuel consumption, as well as high productivity, ensuring a profitable return on investment.”