Hitachi Newsroom

The Zaxis 350LC-3 weighs 77,269 pounds (35 049 kg) and comes standard with a 13-ft. 1-in. (4.0 m) arm, a 16,314-lb. (7400 kg) counterweight, and 32-in. (800 mm) triple semi-grouser shoes. Other arm lengths are optionally available.

Engine and Hydraulics
Powering the 350LC-3 is the Isuzu AH-6HK1YSA-01 engine, with a rated power of 271 SAE net hp (202 kW) @ 1,900 rpm. A fresh new design, rather than a re-work of older technology, the Isuzu Tier-3-certified engine achieves remarkable fuel efficiency and greater output primarily through a common-rail fuel-injection system and the cooled Exhaust Gas Recirculation (EGR) system that uses an isochronous control for the electronic governor.

Working in synergistic tandem with the engine is the Hitachi HIOS III hydraulic system, formulated to specifically match the Isuzu’s torque curve. When combining functions such as boom-up, arm-in, bucket-curl, and travel, HIOS III ensures smooth and powerful performance — no one function is sacrificed for another. Swing speed is 10.7 rpm.

Comfy Cab Operators will especially appreciate the comfortable cab. Largest in its class, the CRES II cab has a wider, more comfortable seatback, more foot room, and a much larger right- side window for excellent visibility. Pedals have been reshaped for easier use. And the cab has been strengthened to protect against greater external pressures. The widescreen color LCD monitor is multilingual and multifunctional. From the seat, the operator can make simple oil flow adjustments for attachments, monitor 32 items, and track maintenance for 14 items. Short-throw, low-effort levers mean fingertip control is truly possible.

Built for Durability Dash-3 improvements also extend to the robust undercarriage and strengthened upperstructure. The undercarriage X-beam is stronger, thanks to monolithic plates top and bottom instead of conventional welded plates. Box sections are larger. Side frame height has been increased to increase rigidity.

Track links are now thicker and have been reshaped for higher durability. Instead of the conventional one, three track guards are now provided, protecting the track links from disengagement during steering. Wider idler brackets, thicker idler bracket locking plates, and bigger, stronger upper and lower rollers also contribute to durability and reliability. The track chain is sealed and lubricated.

The upperstructure continues with Hitachi’s signature D-section frame skirt to increase rigidity. The boom foot, boom top, and arm cylinder mounting area have been strengthened. New and patented HN bushings, using Hitachi’s own molybdenum-based lubricant, are used at the boom-arm joint and arm cylinder mounting area for better lubrication and higher durability. At the arm-bucket joint, the arm top is hardened with tungsten-carbide thermal spraying for greater wear resistance at its contact surface with the bucket.

For more information about the Zaxis 350LC-3 visit your local Hitachi dealer.