PC78US-11 Excavator

Sept. 16, 2021
Komatsu's versatile excavator offers a tight tail swing making it ideal for urban environments and confined spaces.

For work on roadways, bridges, urban areas or anywhere space is limited, contractors need an excavator designed for confined spaces. The tight tail PC78US-11 provides an ideal combination of performance and versatility in a compact and easy-to-transport package.  


With standard high flow auxiliary hydraulics and proportional joysticks that offer incredible job versatility, the 67.7 HP (50.6 kW) PC78US-11 provides precise attachment control. Its standard grading blade with moldboard profile improves backfilling and light grading efficiency. The conventional boom design has a greater raising angle to reduce front bucket swing radius.


Its faster boom up/swing speed, combined with responsive quick arm speed, is designed to make excavating and leveling work easier and more efficient. The six working modes allow operators to tailor the machine to the required tasks, whether for fuel savings or performance. The high-efficiency power package and viscous fan clutch work to lower overall fuel consumption by up to 13%. Its smart, simplified catalytic system removes soot without a diesel particulate filter, lowering maintenance costs and cost of ownership.


Large service access doors and grouped service points with ground-level access make periodic maintenance accessible and efficient. Operators work in a quiet, climate-controlled cab featuring an air suspension seat, Bluetooth radio, and high-resolution monitor with a rearview camera. The sliding cab door of the PC78US-11 makes entry and exit easier in confined spaces and LED lights provide excellent vision at night.

  • Horsepower: 68 HP
  • Operating Weight: 17,747 lb.
  • Bucket Capacity: 0.10 to 0.26 yd3