14 Oct, 2010
Hitachi Construction Machinery (HCM) announces that sales of the EH4000ACII rigid dump truck (Gross Machine Weight 384 tons, 222-ton nominal payload) for international use in large-scale mining, will commence November 1, 2010.
The Hitachi EH3500ACII model, released on September 2008 has been operating at sites in Australia, Africa, North Europe, North America, and CIS countries. The highest hour EH3500ACII exceeds 13,000 operating hours with total hours for this model line, exceeding 160,000 hours, and customer evaluations indicating superior ability in truck acceleration and retardation bringing higher productivity.
The EH4000ACII utilizes AC drive system technology provided by Hitachi, Ltd. like the EH3500ACII it uses Insulated Gate Bipolar Transistor’s (IGBT’s) with the power up, based on the inverter technology used in high-speed railway trains.
Power transfer to the road is more efficient using the AC drive system. By eliminating heavy rotating components as found in the mechanically driven trucks, such as the transmission, torque converter and differential more of the power supplied by the diesel engine is transferred to the haul-road, impacting maintenance costs in the form of reduced labor, parts and production downtime.
Hitachi’s brushless AC travel motors and IGBT inverters reduce repair costs and deliver stronger, more controllable electric braking power (retarding) compared to the predecessor, the EH4000 DC truck.
The EH4000AC II is powered by a Cummins QSKTA60-CE engine that is known for extended service life and fuel efficiency. This engine has been certified to the Tier 2 (U.S.) EPA Emission regulation.
The EH4000AC II includes the following features:
1. High Mobility and Productivity
2. High Controllability
3. High Reliability and Safety
4. Superior maintainability
Brief Specifications | |
---|---|
Model | EH4000AC II |
Nominal Payload with standard equipment | 222 ton |
Body capacity (heaped 2:1/struck) | 153 / 106 m3 |
Net machine weight (with 100% fuel and standard equipment) | 162,000 kg |
Target Gross machine operating weight (with standard tires) | 384,000 kg |
Engine | Cummins QSKTA60-CE |
Gross engine power, kW/min-1 *1(HP/rpm) | 1,864/1,900(2,500/1,900) |
Overall length | 14,280 mm |
Overall width (including mirrors) | 9,540 mm |
Overall height | 7,360 mm |
Max. travel speed | 56 km/h |
Tire size (standard) | 46/90R57 |
1 All units are SI international standards; those in parenthesis are former standard units.
EH4000ACII
Information presented in this press release is valid as of the date of release; please note that information is subject to change without notice at a later date.