HITACHI has taken the wraps off the largest model in its new Zaxis-7 wheeled excavator range.
The ZX220W-7 Stage V-compliant machine boasts a ‘unique and industry-leading’ HIOS III hydraulic system, which Hitachi revealed achieves higher levels of productivity with better fuel consumption than previous models. Operators can also control fuel efficiency with a new ECO gauge, visible on the LCD monitor.
The excavator can be used with a broad range of Hitachi attachments including tiltrotators and buckets, breakers, and sorting grabs. These are changed using the attachment support system and can be transported using the optional trailer support package.
The redesigned Zaxis-7 cab is described as ‘ultra-spacious’ with low noise levels and less vibration than the previous generation. Operators benefit from the synchronised motion of the seat and console and features such as cruise control, automatic transmission, and the optional ride control system that suppresses vibrations from the front attachment.
Visibility has been boosted by a 270-degree bird’s-eye view with the aerial angle camera system. Six image options are available on the monitor to view the immediate environment. Hitachi added that vision through the front window is also improved by the slim steering column and smaller steering wheel.
The wheeled diggers are fitted with new features such as LED work lights, a windscreen wiper with increased sweeping area, and larger mirrors. Heated mirrors are also available as an option. For safety, the upper structure and front attachment will lock in place when the machine is in the correct position, for driving on public roads.
Hitachi revealed that the single-piece undercarriage benefits from greater oscillation, enhanced outrigger hydraulics, and fenders protecting the upper structure from dirt. For greater lifting capacity and stability, customers can choose from a range of counterweights, and between standard 2,550mm or wide 2,750mm axles.
Remote monitoring systems give owners access to data courtesy of Owner’s Site and ConSite. Both systems send operational data via GPRS or satellite from the excavator to Global e-Service. ConSite summarises the information in a monthly email, and the ConSite Pocket app shows real-time alerts for potential issues. Machine software updates can be carried out remotely by dealers using ConSite Air. This feature also enables Zaxis-7 excavators to be monitored with Hitachi’s diagnostic tool from anywhere in the world.
The quality of engine and hydraulic oil is monitored 24/7. Data is transmitted via two oil sensors to Global e-Service. These detect if the oil quality has deteriorated, due to contamination or low viscosity.
“We’re delighted to introduce the largest Zaxis-7 wheeled excavator model,” said Hitachi Construction Machinery (Europe) NV excavator product manager Wilbert Blom. “We’ve had a hugely positive response from customers to the new range so far, and we hope the ZX220W-7 will be equally well received.
“It offers outstanding versatility for a wide range of applications when used with Hitachi attachments, and delivers an exceptional performance – allowing our customers to create their vision.”
