CS78B Vibratory Soil Compactor

Powered by the Cat® C4.4 engine, the CS78B provides exceptional performance for granular soil compaction applications.



Comfortable and Ergonomic Operator StationTest

  • Features pivoting seat with integrated multifunction LCD display and control console
  • Outstanding visibility to the front and rear of machine
  • Low sound levels and vibration for greater operator comfort and productivity
 

Rear Vision CameraTest

  • The rear vision camera enhances visibility for more complete operator control and safety.
 

Exceptional Propel SystemTest

  • Built around the exclusive Cat dual pump propel system, two pumps provide separate dedicated flow to drum drive motor and rear axle motor for exceptional gradeability and traction in forward and reverse.
  • Electronic propel control provides more precise machine control.
 

Virtually Maintenance FreeTest

  • Maintenance-free hitch bearings.
  • Extended maintenance intervals for vibratory system and hydraulic system, providing more uptime and lower maintenance costs.
 

Enhanced Compaction PerformanceTest

  • More weight at the drum and greater amplitude.
  • Automated speed control and vibratory system functions make it easy to ensure consistent, high quality compaction.
 

Technologies that Enhance Quality and ProductivityTest

  • Exclusive semi-autonomous Command for Compaction technology automates compaction to offer complete process control and help promote more uniform results.
  • Measurement and documentation technologies help the operator determine when compaction has been completed to specification for greater productivity and uniform compaction quality.
  • Accelerometer-based (CMV) and exclusive Machine Drive Power (MDP) measurement technologies available.
 

Weights

Operating Weight - With ROPS/FOPS18888kg41641lb
Weight - Drum with ROPS/FOPS13443kg29637lb

Operating Specifications

Compaction Width2134mm84in
Curb Clearance533mm21in
Drum Width2134mm84in
Ground Clearance434mm17.1in
Static Linear Load - With ROPS/FOPS63kg/cm352.8lb/in
Travel Speed - Maximum11.4km/h7mile/h
Turning Radius - Inside Drum Edge3.7m12.1ft

Engine

Gross Power129.4kW173.5HP
Engine ModelCat C4.4
Net Power - ISO 9249108.7kW145.8HP
Net Power - SAE J1349108.2kW145.1HP
Stroke127mm5in
Bore105mm4.1in

Dimensions

Overall Length6.1m20.1ft
Overall Width2.5m8.1ft
Height - With ROPS/FOPS or Cab3.1m10.1ft
Drum Width2134mm84in
Drum Diameter1535mm60.4in
Wheel Base2.9m9.5ft

Vibratory System

Centrifugal Force - Maximum335kN75234lb
Centrifugal Force - Minimum156kN35153lb
Nominal Amplitude - High2.1mm0.083in
Nominal Amplitude - Low0.98mm0.039in
Variable Frequency Option Range23.3 - 28 Hz (1400-1680 vpm)
Vibratory Frequency - Standard28 Hz (1680 vpm)

Service Refill Capacities

Fuel Tank Capacity332l88gal (US)

Tires

Tires23.1 x 26