Komatsu PC78US-11 Compact Excavator

Sept. 9, 2021

The tight tail swing PC78US-11 Komatsu compact excavator has an operating weight of 17,791 pounds. It is powered by a 67.7-horsepower Komatsu SAA3D95E-1 engine with a rated rpm of 1,850.

Tail swing radius on the Komatsu excavator is 4 feet 7 inches. Maximum digging depth is 15 feet 3 inches with a maximum digging reach or 22 feet 8 inches.

The bucket capacity ranges from 0.1 to 0.24 cubic yard, and bucket digging force is 11,982 pounds. The excavator has standard high-flow auxiliary hydraulics.

Improvements over the Dash 10 model include faster boom up/swing speed, combined with responsive quick arm speed. Six working modes allow operators to tailor the machine to the required tasks, whether for fuel savings or performance.

The new high-efficiency power package and viscous fan clutch on the PC78US-11 work to lower overall fuel consumption by up to 13 percent.

Large service access doors and grouped service points with ground-level access make periodic maintenance accessible and efficient.

Komatsu PC78US-11 Compact Excavator Specs

  • Operating weight: 17,791 pounds
  • Power: 67.7 horsepower @ 1,850 rpm
  • Max digging depth: 15’ 3”
  • Max digging reach: 22’ 8”
  • Bucket capacity range: 0.1 to 0.24 cubic yard
  • Bucket digging force: 11,982 pounds




Sept. 7, 2011