As the excavation and hauling specialist, Hitachi mining excavators and trucks move material productively, economically, and reliably. Since their initial introduction in 1996 as the EX2500, Hitachi’s 240-250-ton class mining machines have always delivered. The EX2500-6 with its Tier-2 technology continues to lower operating costs, increase production, and improve reliability.

Built tough

The EX2500-6 is one of six new Dash-6 mining excavators. Its front-shovel operating weight is 548,900 lb (249 000 kg); BE backhoe: 548,700 lb. (248 000 kg). It features a new Tier-2 Cummins QSK50-C engine that generates 1,400 hp (1044 kW). It also has an enhanced cab with better visibility, an air-suspension operator’s seat, a widescreen color LCD multifunction monitor, and low-effort short-throw levers with electric fly-by-wire. An updated monitoring system measures 58 items versus 12 from previous models.

Front shovel bucket capacity is 19.6 – 21.6 yd³ (15 – 16.5 m³); BE backhoe is: 19.6 yd³ (15 m³). It takes three to four passes to fill the EH1700-3 Haul Truck; six to seven passes to fill the EH3500ACII. Exclusive auto-leveling crowd mechanism increases job efficiency with one-lever control.

Also standard is the new Hitachi Global e-Service for easy internet access to vital Machine Information Center (MIC) data. This enables owners to use their own computers to check on critical data without having to purchase any expensive software or go out into the field and do a manual download. So whether someone is operating out of a mine’s field office or the mine’s global headquarters, Hitachi e-Service makes it possible to remote monitor the health of each Dash-6 excavator. Manual downloads can still be done in order to obtain all of the MIC data. However these complete files can be uploaded into e-Service as well.

The Hitachi Difference

The entire Dash-6 line not only meets Tier-2 requirements, it was developed to slash life-cycle costs and reduce downtime by using advanced technology. A highly sophisticated monitoring system provides instant fault and alarm diagnosis displaying warnings and countermeasures if an event arises.

Since Hitachi has been making large mining excavators for so long, it has developed a wealth of data on providing support of their products. Hitachi has also listened to customers and dealers. As a result, the Dash-6 Series design team was also focused on determining appropriate warning thresholds and providing more accurate replacement intervals for parts with analysis of the monitoring data.