2024 Komatsu Excavators PC78US-11

Information

2024 Komatsu Excavators PC78US-11

Designed to excel in underground utility and general construction in urban environments, this new Komatsu short tail swing excavator is at home in confined spaces. Extremely transportable, it delivers high attachment flow with in-cab programmable flow rates for a wide range of attachments.

Features may include:

Compact design
  • For working in tight areas, a compact short tail swing offers maneuverability in more confined areas than a conventional excavator, such as in a single lane of traffic. The conventional boom design has a greater raising angle to reduce the front bucket swing radius.
Fast cycles and custom modes
  • Faster boom up/swing speed, combined with responsive quick arm speed, makes excavating and leveling work easier and more efficient over previous models. Six working modes let you tailor the machine to the tasks required, whether it be for performance or fuel savings.
Versatility and efficiency come standard
  • Standard high flow auxiliary hydraulics with proportional joysticks allows you incredible job versatility while providing precise attachment control. Standard grading blade with new moldboard profile improves backfilling and light grading efficiency over previous models.
Maximum operator comfort
  • Operators work comfortably in a quiet, climate-controlled cab featuring air suspension seat, Bluetooth radio, and high-resolution monitor with rearview camera. LED lights provide excellent vision at night. Sliding cab door makes entry and exit easier in confined spaces.
Fuel efficient, low-cost power
  • The new high-efficiency power package and viscous fan clutch work together to lower overall fuel consumption up to 13%*. A smart, simplified catalytic system removes soot?without a diesel particulate filter, meaning lower cost of ownership and less maintenance.
Quick and easy maintenance
  • Periodic maintenance is more accessible and efficient with large service access doors and grouped service points with ground-level access.

Photos

Highlights

  • Lyle, Machinery
  • 2024
  • Komatsu
  • Excavators PC78US-11
  • Model: SAA3D95E-1
  • Available

Specifications

  • 2024
  • Komatsu
  • Excavators
  • PC78US-11
  • Mini
  • Model: SAA3D95E-1
  • Komatsu
  • Water-cooled | Fan drive method for radiator cooling: Mechanical with viscous fan clutch
  • 3
  • 3.74 in | Hydraulic cylinders Boom: 4.33 in | Hydraulic cylinders Arm: 3.74 in | Hydraulic cylinders Bucket: 3.35 in | Hydraulic cylinders Blade: 5.12 in
  • 4.52 in | Hydraulic cylinders Boom: 33.8 in | Hydraulic cylinders Arm: 33.9 in | Hydraulic cylinders Bucket: 27.95 in | Hydraulic cylinders Blade: 5.12 in
  • Piston: 149.5 in³
  • SAE J1995 / Gross: 68.0 HP | ISO 9249 / SAE J1349 / Net: 67.9 HP
  • 1,850 rpm
  • 4-cycle,
  • Turbocharged, aftercooled, cooled EGR
  • Swing circle lubrication: Grease-bathed
  • Travel: 2 x piston motor with parking brake | Swing: 1 x axial piston motor with swing holding brake
  • direct
  • All-speed control, electronic
  • control: Two levers with pedals
  • method: Hydrostatic | Swing System method: Hydrostatic
  • Hydraulic lock | Swing brake: Hydraulic motor | Swing lock: Mechanical disc brake
  • Mechanical discs
  • Gradeability: 30° | Maximum drawbar pull: 15,309 lbf. |
  • High: 3.1 mph | Low: 1.9 mph | Swing: 10 rpm
  • Road liner 18": 5.20 psi. | Triple grouser 18": 5.20 psi | Triple grouser 24": 3.90 psi | Rubber shoe 18": 5.10 psi
  • Pumps for: Boom, arm, bucket, swing, and travel circuits | Type: Variable displacement, axial piston | Pumps for: Blade | Type: Fixed displacement gear
  • Maximum flow: 44.4 gpm | Maximum flow: 17.0 gpm | Auxiliary hydraulics (two-stage relief): Two-way 36.5 gpm / One-way 21.1 gpm
  • Implement circuits: 4,264 psi | Travel circuit: 4,337 psi | Swing circuit: 3,176 psi | Pilot circuit: 464 psi | Blade circuit (Raise, Lower): 1,784 psi | Blade circuit (Lower): 3,060 psi
  • Auxiliary hydraulics (two-stage relief): Relief 3,830 psi / Relief in breaker mode 2,490 psi
  • Center frame: X-frame leg | Track frame: Box-section
  • Shoes: 16 in | Hydraulic cylinders Boom (rod diameter): 2.56 in | Hydraulic cylinders Arm (rod diameter): 2.36 in | Hydraulic cylinders Bucket (rod diameter): 2.17 in | Hydraulic cylinders Blade (rod diameter): 2.56 in
  • Engine: 2.7 US gal | tank: 33.0 US gal | Final drive (each side): 0.29 US gal | Swing drive: 0.52 US gal
  • 14.8 US gal
  • Radiator: 4.8 US gal
  • Road liner 18": 17,791 lbs. | Triple grouser 18": 17,483 lbs. | Triple grouser 24": 18,188 lbs. | Rubber shoe 18": 17,438 lbs.
  • Swing reduction: Planetary gear | Number of shoes (each side): 39 | Number of carrier rollers (each side): 1 | Number of track rollers (each side): 5
  • Sealed | adjuster: Hydraulic