The Zaxis Series was first introduced in 2002. The first six Dash-3 upgrades rolled out in 2006, covering the 26- to 94-ton (24 to 85 t) range. Among the first to be introduced in 2007 are the utility-class ZX200LC-3 and the ZX225USLC-3 excavators.

Zaxis 200LC-3

The four-cylinder Tier-III-certified Isuzu engine is suited for high-production applications. Even though the ZX200LC-3 is heavier, stronger, faster, and quieter than its predecessor, it uses less fuel. New E, P, and H/P modes can be selected to suit job needs. The E mode can save fuel consumption up to 13 percent compared to the previous model, according to the manufacturer.

The cab is prepped for auxiliary hydraulics. Other options include several arm and shoe sizes, super-long fronts, a control pattern change valve, and auxiliary hydraulic accessories.

Other key features include a stronger undercarriage, X-beam, side frames, idler brackets, and a front attachment — all designed to further enhance durability. The new ZX200LC-3 also has greater horsepower, swing torque, and drawbar pull than before. It holds 10.6 gal. (40 L) more fuel and hydraulic oil, but requires .5 gal. (2 L) less engine oil.

The CRES II cab is larger and comes with a wider seatback, more legroom, and 47 percent more glass on the right hand side for improved visibility. Its 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 also is available.

Like all the Dash 3s, the ZX200LC-3 uses the HIOS III hydraulic system. Engine performance and hydraulic flow are balanced for fast, smooth and precise operations. Swing torque has been increased 13 percent for faster cycle times. Due to regenerative hydraulics, arm roll-in is 20 percent faster and the boom lower/arm movement is 15 percent faster. Multifunction operations also are smoother, according to the manufacturer.

Zaxis 225USLC-3

Easily positioned to work closer to buildings and obstructions, reduced-tail-swing excavators can handle the same jobs as their standard counterparts (since many of the specs are the same) but provide less risk of damage to the working environment as well as to the machine itself. They can even work within a single lane of traffic.

The new ZX225USLC-3 is a performance match to the ZX200LC-3 and shares the same engine and improvements.

On the ZX225USLC-3, the rear-end swing radius is shorter by 3 ft. 6 in. (1 m). The Ultrashort also has a heavier operating weight. Although digging reach and depth are virtually the same, there is a significant difference in the cutting and dumping heights, and in the minimum swing radius. Due to its ultra-short structure, the ZX225USLC-3 is 6 percent more stable than the ZX200LC-3, according to the manufacturer.

For more information, visit www.hitachiconstruction.com.

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