With a nominal payload of 280 tons (254 t) — and a factory installed trolley-capable option — Komatsu’s 860E-1K electric drive rigid frame dump truck will be the latest in a broad selection of fast and powerful mining trucks manufactured for distribution across the globe.
Powerfully Productive and Environmentally Sensible
The power plant in the 860E is the Komatsu SSDA16V160, a 2,700-hp (2,012 kW), sixteen-cylinder, two-stage turbocharged diesel. To address the ecological impact, Komatsu designed the 860E’s engine to be Tier II certified.
Komatsu’s trolley system can be utilized on either 1,600 or 1,800 volt lines, allowing the 860E to propel uphill faster while the engine RPM reduces, thereby saving fuel and extending the life of the engine compared to non-trolley. In both applications, the Komatsu-designed drive system produces a maximum speed of 40 mph (64.5 kmh) with a 35.52:1 final gear ratio powered by the latest Siemens control package. The unique, liquid-cooled IGBT AC-drive system from Siemens provides advanced features and a smooth application of torque and traction.
The 860E’s ultra-quiet dynamic retarding system, capable of 4,650 hp (3,466 kW) is assisted by 4-wheel wet-disc brakes. These braking elements, coupled with traction control technology, provide braking force even in difficult road conditions, according to the manufacturer.
Operator Comfort
The 860E is designed to offer improved access systems which lead to the truck’s spacious, isolation mounted, ROP/FOPS certified cab. The cab features a five position adjustable air ride seat as well as a full size heavy duty passenger seat. The integrated electronic dash display provides a standard suite of instrument gauges as well as payload data.
To further enhance productivity and comfort during long shifts, the 860E’s steering column tilts and telescopes to customize the operator’s driving position. Automatic speed control for uphill or downhill hauling makes it easier for the operator to maintain a desired speed.
Service and Support.As a key part of any complete service and support program for its mining trucks, Komatsu installs the vehicle health monitoring system (VHMS) on every truck as standard equipment to allow easy access to summary performance data. Using a satellite communications system and optional wireless download, the Komatsu VHMS allows technicians to use a simple internet interface to easily check the pressures and trends, summarize the previous day’s payload, and be quickly alerted of critical faults.
The 860E is designed and manufactured at Komatsu America Corp’s Peoria Manufacturing Operation in Peoria, Ill. The truck has been tested at the Komatsu Proving Grounds in Arizona, as well as in field tests. The 860E is slated for limited release in 2009 followed by full scale production in 2010.
For more information, visit www.komatsuamerica.com.
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