Komatsu's new off-highway trucks have increased horsepower, reduced fuel consumption, improved access, and all-new operator environment.
The new HD325-8 and HD405-8 off-highway trucks have EPA Tier 4 Final certified engines to give increased horsepower and a new Komatsu Traction Control System for better productivity.
These models have payload capacities of 40.3 US/36.5 tonnes and 44.1 US/40 tonnes, respectively. They replace the HD325-7 and HD405-7 models.
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The new trucks’ Komatsu SAA6D140E-7 engines have increased to a net 514 horsepower with fuel consumption down compared to predecessors[/caption]
The new trucks’ Komatsu SAA6D140E-7 engines have increased to a net 514 horsepower (383kW). Fuel consumption is down for the HD325-8 by as much as 9%, and by as much as 6% for the HD405-8, compared to predecessors.
Also, access is better, with sloped stairs and handrails in front, to replace the previous ladder configuration.
For HD325-8 and HD405-8 machines, Komatsu Traction Control System is now standard. Traction control automatically applies independent braking for traction in varying ground conditions. Because the system operates without the need for differential lock-up, steering performance is not compromised, Komatsu says.
Other new standard features for both truck models include a quiet 78 dB(A) cab, seven-inch, LCD color monitor, dedicated rearview monitor, fast-fill fuel system, and a premium heated and ventilated operator’s seat with air suspension.
In addition, the tire size for the HD405-8 truck has been increased from 18.00 R33 to 21.00 R33, for extended wear properties.
“The updated truck models retained their industry leading steering performance and retarding capacity for maximum production,” said Rob McMahon, product marketing manager for Komatsu America.
“The addition of Komatsu’s latest fuel saving technologies and the all-new cab, lower the cost to maximize production and significantly enhance operator comfort at the same time.”
Standard features of the new HD325-8 AND HD405-8 include:
- Tier 4 final certified engine technology
- The SAA6D140E-7 engine provides a gross power rating of 518 HP (386 KW)
- The hydraulically actuated exhaust gas recirculation and variable geometry turbocharger ensure precise operation and quick engine response
- Maintenance of Tier 4 Final engines is simplified with enhanced monitor panel capability and service features
- Komtrax and the monitor panel provide critical information for easy monitoring and key data for production management
- Komatsu diesel particulate filter and selective catalytic reduction are designed in conjunction with the engine for efficiency and long life
- More than 98% of Komatsu diesel particulate filter regeneration is performed passively, with no action required of the operator and no interference with machine operation
- Power and Economy modes allow the operator to optimize the performance required for operation
New In-Cab enhancements
- Air-suspension, high-back, ventilated and heated seat softens machine vibrations for added operator comfort and cast frame members increase strength
- Seven-inch, full color, high resolution monitor delivers a sharp picture and vivid colors, even in harsh light
- Komatsu auto idle shutdown can reduce idle time and save fuel
- Separate, full color, rearview monitor with improved line-of-sight
- Pioneering Komtrax telematics system and monitor provide key machine metrics, including diesel particulate filter status and fuel consumption. Performance information can be collected and sorted by operator ID
- Auxiliary jack and two 12 volt ports
