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Tandem Vibratory Rollers

Compacting to specifications is critical for soil, landfill, and paving applications. Cat compactors are specifically designed for all compaction operations.

CB44B Tandem Roller

The Cat® CB44B is a 8 ton roller with 1500 mm (59") tandem vibratory drums. It excels on a variety of asphalt mix designs as well as other granular materials. It features exceptional visibility and control, smooth operating powertrain, versatile vibratory systems, Cat Compaction Control, and the industry leading water spray system.

  • Specification Summary

  • Operating Weight8300 kg
  • Standard Compaction Width1500 mm
  • Gross Power82.1 kW
  • Bore105 mm
  • Stroke127 mm
  • Product Brochure


Product Details


Operating Weight 8300 kg
Operating Weight at Rear Drum with ROPS/FOPS 4150 kg
Operating Weight at Front Drum with ROPS/FOPS 4150 kg
Operating Weight with cab 8450 kg
Maximum Weight at Front Drum 4150 kg
Maximum Weight at Rear Drum 4150 kg
Operating Weight with ROPS/FOPS 8300 kg

Operating Specifications

Standard Compaction Width 1500 mm
Curb Clearance 898 mm
Turning Radius Inside Drum Edge 4478 mm
Ground Clearance 226 mm
Maximum Compaction Width 1670 mm
Static Linear Load 28.2 kg/cm
Travel Speed - Maximum 12 km/h


Gross Power 82.1 kW
Bore 105 mm
Stroke 127 mm
Engine Model Cat® C4.4 with ACERT Technology

Service Refill Capacities

Fuel Tank Capacity 208 L
Water (Spray) Tank Capacity 742 L

Vibratory System

Drum Width 1500 mm
Drum Diameter 1108 mm
Frequency 53.3 Hz
Vibration Selection Independent per drum, front only, rear only, both
Eccentric Weight Drive Hydraulic direct, auto reversing
Centrifugal Force per Drum - Maximum 77 kN
Centrifugal Force per Drum - Minimum 30 kN
Nominal Amplitude - High 0.65 mm
Nominal Amplitude - Low 0.25 mm


Overall Length 4565 mm
Wheelbase 3300 mm
Height with ROPS/FOPS 2980 mm
Compaction Width 1500 mm
Overall Width 1670 mm
Drum Diameter 1108 mm
Drum Width 1500 mm

Exceptional Visibility and Control

The B-Series Tandem Vibratory Rollers offer unobstructed sight lines with standard 180° seat positioning for excellent visibility. Also, drum edge and drum surface lighting provide better lighting for nighttime operation. The innovative handwheel steering technology eliminates the front console that is commonly found on other machines for precise machine control.

Comfortable Operating Station

The machine controls and LCD display are integrated with the pivoting adjustable seat, and move with the operator. Seating options include vinyl for open-platform configurations and cloth for cab, both can be equipped with a heated option. An optional deluxe highback air-ride seat is also available. Other comfort features include a vibration-absorbing floor mat, 12-volt power receptacle that supports communication devices, wide-width seat belt, cup holders and a lockable storage compartment.

Fingertip Control

The multi-function propel lever with integrated controls for water spray on/off, drum offset, vibratory control, and optional edge cutter height adjustment enables the operator to work with confidence.

LCD Display

The back-lit LCD display includes machine data and diagnostics. It is integrated with the seat, so it remains in the same position even as the seat pivots. A built-in lockable anti-vandalism cover offers protection. The display provides multiple language options, split-screen capability, and indicators for ground speed, vibrations per minute, and fuel level.

Convenient Console

The console is integrated with the seat, providing fingertip access. Soft keys with tactile feel provide instant feedback to the operator for intuitive operation. The armrests are adjustable and can be tailored to the operator for additional comfort.

Vibratory System Choices

Cat Tandem Vibratory Rollers quickly reach target densities due to their versatile frequency and amplitude selections. These powerful rollers also provide finesse when necessary due to their flexible front or rear drum only vibratory capability. Options include dual amplitude/dual frequency and five amplitude systems.

Solid Drum Design

This machine offers vibratory choices to match your amplitude and frequency requirements. It performs particularly well in high-production applications. It provides high amplitudes for breakdown and intermediate work, while its high static linear load delivers excellent results for finishing work.

Performance Features

The vibratory systems offer multiple options that help fine-tune performance on thick challenging lifts. The automatic speed control feature makes it easier to maintain consistency and impact spacing requirements. Also, an auto vibe function helps prevent over-compaction and contributes to uniformity.

Five Amplitude Vibratory System

The five amplitude system is a heavy hitter for thick lifts and tough mix designs. It utilizes a single frequency and five amplitudes that can easily be fine-tuned to match application requirements.

Dual Amplitude/Dual Frequency Vibratory System

The dual amplitude, dual frequency vibratory system can be tailored to thin and thick lifts. A single switch automatically matches amplitude and frequency for simple operation.

Cat® Compaction Control

The optional Cat Compaction Control helps contractors increase efficiency and productivity while recording data for quality control documentation and future planning.

Temperature Sensors

Dual infra-red sensors mounted on the front and rear of the machine deliver real-time readings that keep the operator informed of when to begin rolling and when to stop. This system helps operators avoid tender-zones that often occur in the 104º-110º C (219º-230º F) temperature range.

Pass-Count Mapping

Pass-count mapping helps operators achieve target density and increase roller efficiency. The system records and monitors pass patterns in order to display coverage. The system also helps operators optimize drum overlap, simplify nighttime operation, eliminate second guessing and prevent incomplete passes such as stopping short.

Temperature Mapping

Temperature mapping provides a visual readout of mat temperature in order to keep the machine in the proper temperature range. The system records and monitors temperature for future analysis of the proper temperature range.

Smooth Operating Powertrain

The B-Series tandem rollers are powered by Cat® engines with ACERT™ Technology. The engine includes a variety of features that help reduce fuel burn, including Eco-mode, yet still deliver the power required on challenging jobsites. Tough components help extend compactor life.

Cat® C4.4 Engine

The C4.4 engine provides 82.1 kW (111.6 metric hp) of power and meets U.S. EPA Tier 3 and EU Stage IIIA emission standards. It features an electronic control module (ECM), providing optimal performance through precisely synchronized timing and fuel delivery. The ECM enables advanced troubleshooting and diagnostic capabilities using Electronic Technician (Cat ET). Cat dealers are the single-source providers of all machine and engine warranty service (a Cat exclusive).

High Capacity Cooling System

The large capacity cooling system keeps the operating temperatures low, even in extreme conditions. The high capacity fan directs warm air away from the operator for a more comfortable operating environment.
  • 5-Amplitude Vibratory System
    • Cat® Compaction Control
      • Edge Cutter
        • ROPS/FOPS Cab
          • Offset Hitch
            • Water Distribution Mats
              • Cocoa Mats
                • Water Spray Freeze Protection Kit
                  • High Intensity Discharge Lights
                    • Warning Beacon
                      • External Mirrors
                        • Bio-Degradeable Oil
                          • Product Link
                            • Drum Edge Lighting Package
                              • High Ambient Cooling System
                                • Air Suspension Seat w/heat

                                  360° Exterior View

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