Cat D7E Electric Drive Dozer
Expected to move 25% more material per gallon of fuel, improve productivity 10% and reduce lifetime operating costs 10% compared to D7R Series II
Caterpillar's D7E dozer is the construction industry's first diesel-electric dozer, and Cat says it will move 25% more material per gallon of fuel, improve productivity 10% and reduce lifetime operating costs 10% compared to the D7R Series II. A 235-hp Cat C9 engine drives a generator that produces electricity to power two AC electric drive motors, which are connected to a differential steering system.
- A continuously variable electric motor drives each track
- 60% fewer moving parts in the drivetrain
- Center-post cab provides more all-around visibility and wider sight lines to the blade
- Single larger blade lift cylinder provides the same power and stability with less than half the parts
Project profile: K&E Excavating's D7E Cuts Fuel Use in Half
Caterpillar brochure: D7E Track Type Tractor
Video: Caterpillar's 2008 D7E Intro and Demonstration
More like this: Dozers
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