CP12 GC Vibratory Soil Compactor

The CP12 GC Vibratory Soil Compactors deliver dependable, economical production with performance that exceeds expectations.

Comfortable and Ergonomic Operator Station

  • The steering console features an LCD display. The display provides diagnostics and additional data to the operator. Machines that are equipped with Cat Compaction Control output compaction measurements to the display as well.
  • A multi-position steering wheel adjusts for comfort. An adjustable vinyl seat with seat belt is comfortable and keeps controls and operating information within easy reach. The 12-volt adapter provides power for personal electronic devices. A floor mat reduces vibrations. Cup holders are provided on the steering column. Large mirrors provide excellent views to the rear of the machine.
  • The operator is provided with excellent visibility to the front, drum edges rear tire edges and rear of machine enhancing safety and production. Optional mirrors provide enhanced visibility to the rear.

Power Train

  • GC Vibratory Soil Compactors feature a Cat engine that offers enhanced efficiency, better serviceability, ample power, and less noise.
  • <li/GC vibratory soil compactors are equipped with Eco-mode, a function which helps to economize the use of fuel.

Technologies that Enhance Quality and Productivity

  • Cat Compaction Control can be augmented by adding an optional Global Navigation Satellite System (GNSS) mapping antenna and a dedicated display unit, which provides SBAS-level accuracy and allows the operator to visually monitor results, map them to locations and save the data for analysis or documentation purposes. An RTK GNSS mapping capability is also available that provides greater accuracy than SBAS.
  • Machine Drive Power (MDP) is an exclusive technology only available from Caterpillar. MDP indicates soil stiffness by measuring rolling resistance. It is effective on all soil types, and can function when the drum is static or vibrating. MDP measures closer to depth of the lifts of materials being compacted, around 30-60 cm (1-2 ft) deep. MDP is a flexible technology because it can be used on all soil types which allows results to be correlated with portable measuring equipment such as lightweight falling deflectometers and nuclear gauges. Because it does not require the drum to vibrate, there is less risk of de-compaction when used for proofrolling.

Easy to Service

  • Design provides ground level access to all service and maintenance points.
  • Long service intervals contribute to more productivity and lower owning and operating costs. The vibratory system scheduled oil change interval is 3 years/3,000 hours. The hydraulic oil service interval is 3,000 hours. Engine oil service is every 500 hours.

Reliable Vibratory System

  • GC vibratory soil compactors deliver excellent compaction performance due to high amplitude and static linear load.
  • GC machines utilizes the proven Cat pod-style vibratory system. The system design significantly reduces the risk of contamination common to conventional designs that employ metal weights. Providing unrivaled reliability and performance, the Cat pod-style vibratory system is virtually maintenance free, with the first scheduled maintenance period at 3 years or 3,000 hours.
  • An automatic vibration function provides consistency for more uniform compaction. When vibration is engaged, vibration will cease as the compactor slows beneath a predetermined speed. When propel resumes, vibration recommences at a predetermined speed. This feature contributes to uniform, high-quality work.
  • Smooth drums are ideal for compacting granular materials and can be equipped with an optional padfoot shell kit for compacting cohesive and semi-cohesive materials.


  • The Cat® C4.4 engine meets Brazil MAR-1, equivalent to U.S. EPA Tier 3 and EU Stage IIIA emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)** or 100% renewable diesel, HVO (hydrogenated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or "Caterpillar Machine Fluids Recommendations" (SEBU6250) for details.
  • Auto engine idle shutdown helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • A well-trained operator is worth the investment. Skilled operators benefit your bottom line by maximizing productivity, avoiding costly downtime, and maintaining jobsite safety - which can help to improve fuel efficiency and reduce greenhouse gas emissions.
  • Extended maintenance intervals not only reduce downtime but can decrease the amount of fluid and filters that are replaced over the life of the machine. The hydraulic oil can be replaced every 3000 hours, eccentric housing oil can be replaced every 3000 hours, and engine oil changes can be 500 hours.
  • Performance and safety can be augmented with standard and optional cameras that are viewed on in-cab displays.
  • Cat Compact technologies help you consistently meet compaction targets faster, more uniformly, and in fewer passes - saving on fuel and reducing rework and material costs.
  • Cat Scheduled Oil Sampling (S•O•S) Services helps reveal excessive wear, contaminated fluids or other "unseen" issues that can shorten component life. In many cases, you can extend oil and coolant change intervals by using fluid monitoring. Consult your Cat dealer or the machine's operation and maintenance manual for more information.
  • Remote Flash for engines helps to minimize downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.

**Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel.

Standard Equipment

  • ROPS/FOPS Canopy with Handrails/Guardrails, Floor Mat
  • Vinyl Adjustable Pivoting Seat with Integrated Console and LCD Display
  • Adjustable Tilting Steering Column with Integrated Cup Holders
  • Rear Vision Camera with Color Touchscreen Display
  • Seat Belt
  • 12-volt Power Outlet
  • Padfoot Drum
  • Dual Amplitude, Single Frequency
  • Dual Pod-Style Eccentric Weight Housings
  • Auto-vibe Function
  • Front Adjustable Steel Scraper
  • Cat C4.4 Diesel Engine
  • Air Cleaner, Dual Element
  • Three-Speed Throttle Switch, Eco-mode and Automatic Speed Control
  • Dual Propel Pumps; One for Drum Drive, One for Rear Axle
  • Fuel Filter, Water Separator, Priming Pump, Water Indicator
  • Tilting Radiator/Hydraulic Oil Cooler
  • Dual Braking System
  • 24 volt Electrical System
  • 100 ampere Alternator
  • 750 Cold-cranking Amps Battery Capacity
  • Product Link™
  • Sight Gauges for Hydraulic Oil Level and Radiator Coolant Level
  • S•O•S℠ Sampling Valves: Engine Oil, Hydraulic Oil and Coolant

Additional information

Offering Type

Weights - Operating Weight - With Cab

12639 kg ( 27863 lb )

Weights - Operating Weight - With ROPS/FOPS Canopy

12485 kg ( 27524 lb )

Weights - Operating Weight - With Sun Canopy

12307 kg ( 27132 lb )

Weights - Weight - Drum with ROPS/FOPS Canopy

7725 kg ( 17030 lb )

Weights - Weight - Drum with Sun Canopy

7655 kg ( 16877 lb )

Weights - Weight - Drum with Cab

17123 lb ( 7767 kg )

Operating Specifications - Compaction Width

2134 mm ( 84 in )

Operating Specifications - Curb Clearance

492 mm ( 19.4 in )

Operating Specifications - Ground Clearance

518 mm ( 20.4 in )

Operating Specifications - Turning Radius - Inside Drum Edge

3.86 m ( 12.7 ft )

Operating Specifications - Travel Speed - Maximum

11 km/h ( 6.8 mile/h )

Engine - Gross Power

83 kW ( 111.3 HP )

Engine Model

Cat C4.4

Engine - Net Power - ISO 9249

79.4 kW ( 106.5 HP )

Engine - Net Power - SAE J1349

78.5 kW ( 105.3 HP )

Engine - Stroke

127 mm ( 5 in )

Engine - Bore

105 mm ( 4.1 in )

Dimensions - Overall Length

5.7 m ( 18.7 ft )

Dimensions - Overall Width

2.3 m ( 7.5 ft )

Dimensions - Drum Width

2134 mm ( 84 in )

Dimensions - Height - With ROPS/FOPS or Cab

3 m ( 9.8 ft )

Dimensions - Maximum Height

3 m ( 9.8 ft )

Dimensions - Drum Diameter

1549 mm ( 60.4 in )

Dimensions - Wheel Base

3 m ( 9.8 ft )

Dimensions - Optional Blade Height

688 mm ( 27.1 in )

Vibratory System - Nominal Amplitude - High

1.8 mm ( 0.071 in )

Vibratory System - Nominal Amplitude - Low

0.89 mm ( 0.35 in )

Vibratory System - Centrifugal Force - Maximum

249 kN ( 55932 lbf )

Vibratory System - Centrifugal Force - Minimum

148 kN ( 33249 lbf )

Vibratory System - Vibratory Frequency - Ecomode

28.6-31.5 Hz

Vibratory System - Vibratory Frequency - Ecomode

1716-1890 vpm

Vibratory System - Vibratory Frequency - Standard

1890-1980 vpm

Vibratory System - Variable Frequency Option Range

23.3 – 30.5 Hz (1400-1830 vpm)

Vibratory System - Vibratory Frequency - Standard

30-33 Hz

Service Refill Capacities - Fuel Tank Capacity

248 l ( 65.5 gal (US) )


23.1 x 26

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