CP56B Vibratory Soil Compactor

CP56B Vibratory Soil Compactor

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The CP56B 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
25707.0 lb
Operating Weight with ROPS/FOPS
25264.0 lb
Weight at Drum with Cab
14231.0 lb
Weight at Drum with ROPS/FOPS
14026.0 lb

Operating Specifications

Compaction Width
84.0 in
Ground Clearance
17.9 in
Travel Speed - Maximum
7.0 mph
Turning Radius Inside Drum Edge
12.08 ft


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


Drum Diameter
51.0 in
Drum Diameter - Over Pads
61.0 in
Drum Width
84.0 in
Height with ROPS/FOPS or Cab
10.25 ft
Optional Blade Height
27.1 in
Overall Length
19.25 ft
Overall Length with Blade Option
21.0 ft
Overall Width
7.58 ft
Overall Width with Blade Option
8.25 ft
9.58 ft

Vibratory System

Centrifugal Force - Maximum
67600.0 lb
Centrifugal Force - Minimum
31670.0 lb
Nominal Amplitude - High
0.083 in
Nominal Amplitude - Low
0.039 in
Variable Frequency Option Range
23.3 - 30.5 Hz (1400-1830 vpm)
Vibratory Frequency - Standard
30.5 Hz (1830 vpm)


23.1 x 26

Service Refill Capacities

Fuel Tank Capacity
64.0 gal
  • Cat Compaction Control, Machine Drive Power (MDP)
  • Leveling Blade
  • GNSS Mapping for Cat Compaction Control, SBAS or RTK
  • Deluxe Operator's Seat for Cab
  • Product Link
  • Upgraded Halogen Light Package
  • Transmission Guard
  • Rotating Beacon
  • Bio-oil Factory Fill
  • Additional Rear View Mirrors