Hitachi unveils new Dash-6 wheeled excavator

Hitachi Construction machinery has launched a new Dash-6 wheeled excavator with improved piston design, a heavy-duty undercarriage and HIOS IV hydraulic system.

The next generation of Hitachi’s wheeled excavator, the ZX190W-6, is now rolling out with a certified Final Tier Isuzu engine that does not require a diesel particulate filter (DPF) and includes multiple other upgrades that enhance efficiency, reliability and durability.

Hitachi’s Dash-6 wheeled excavator weighs in at 20,548 kg and sits on a short wheelbase that enables work in tight spaces.

“Hitachi’s Dash-6 wheeled excavator has the mobility and power to be one of the most versatile machines in your fleet,” said Jonathan Spendlove, product marketing manager for Hitachi Construction Machinery – Americas. “A contractor can dig like a tracked excavator and get from one site to another without having to invest in a truck or trailer.

Improved piston design

The new ZX190W-6 features an efficient Tier 4 Final Isuzu engine with improved piston design, allowing particulate matter to burn in cylinder during combustion. This eliminates the need for regenerations or a DPF, saving service time and lowering operating costs. With the improved Tier 4 Final technology, Hitachi was also able to maintain or reduce total fluid consumption compared to Interim Tier 4 models.

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The model’s HIOS IV hydraulic system contributes to fuel efficiency by delivering on-demand performance and the right amount of pump flow when metering pilot controls. As well, power and performance is balanced with three work modes, including:  Economy (ECO) to maximize fuel efficiency; Power (PWR) to deliver a balance of power, speed and fuel economy for normal operation; and High Productivity (H/P), which delivers more power and faster hydraulic response.

The ZX190W-6 reaches speeds of 35 km/h and features a larger hood with springs, providing improved access to the engine for service.

Minimal maintenance

Maintenance is minimized with at-a-glance gauges to grouped service points with easy access to the washer tank, air cleaner, DEF tank and battery disconnect switch. Convenient upper structure handrails are standard and provide easy engine access. Furthermore, extended service intervals help ensure more uptime.

In addition, a redesigned counterweight with LED lights and rearview camera enhance jobsite visibility.

“The elimination of a DPF makes operations more efficient, and a redesigned counterweight dramatically enhances visibility for operators,” Spendlove said.

The ZX190W-6 is protected by a heavy-duty undercarriage and durable D-channel side frames. Added strength comes from welded bulkheads within the boom that resist torsional stress, tungsten-carbide thermal-coated arm surfaces and oil-impregnated bushings.

Dash-6 sound absorption

New to the Dash-6 model are sound absorption pads mounted on the rear pump compartment that are more durable and maintenance-free. Plus, a standard, larger blade cylinder cover better protects the blade lift cylinder.

The new ZX190W-6 is now available in the United States, Canada and Guam.