CS78B Vibratory Soil Compactor

CS78B Vibratory Soil Compactor

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The CS78B Vibratory Soil Compactor combines world-class productivity with outstanding operator comfort while continuing the legacy of durability, reliability and ease-of-service that contractors worldwide have come to expect from Cat® machines.


Operating Weight with Cab
41214.0 lb
Weight at Drum with Cab
29626.0 lb

Operating Specifications

Compaction Width
84.0 in
Ground Clearance
17.2 in
Static Linear Load, with Cab
352.7 lb/in
Travel Speed - Maximum
7.0 mph
Turning Radius Inside Drum Edge
12.08 ft


Gross Power
173.7 hp
Engine Model
Cat C4.4 with ACERT


Drum Diameter
60.4 in
Drum Width
84.0 in
Height with ROPS/FOPS or Cab
10.25 ft
Overall Length
20.08 ft
Overall Width
7.75 ft
9.58 ft

Vibratory System

Centrifugal Force - Maximum
74600.0 lb
Centrifugal Force - Minimum
37300.0 lb
Nominal Amplitude - High
0.083 in
Nominal Amplitude - Low
0.039 in
Variable Frequency Option Range
23.3 - 28 Hz (1400-1680 vpm)
Vibratory Frequency - Standard
28 Hz (1680 vpm)


23.1 x 26

Service Refill Capacities

Fuel Tank Capacity
88.0 gal
  • Padfoot Shell Kit
  • Cat Compaction Control, Compaction Meter Value (CMV)
  • Cat Compaction Control, Machine Drive Power (MDP)
  • GNSS Mapping for Cat Compaction Control, SBAS or RTK
  • Deluxe Operator's Seat for Cab
  • Product Link
  • Upgraded Halogen Light Package
  • Transmission Guard
  • Rear-side Steel Scraper
  • Front and Rear Polyurethane Scrapers
  • Rotating Beacon
  • Bio-oil Factory Fill
  • Additional Rear View Mirrors
  • Italian Road Homologation (IRH)