CD44B - Split Drum

CD44B - Split Drum Introduction CD44B - Split Drum Introduction
Introduction to the B-Series Tandem Vibratory Rollers Introduction to the B-Series Tandem Vibratory Rollers
Smooth Operation Smooth Operation
Nighttime Operation Nighttime Operation
Water Spray System Water Spray System
Exceptional Visibility Exceptional Visibility
Edge Management Feature Edge Management Feature
Steering Modes Steering Modes
Hitch Oscillation Hitch Oscillation
Airflow Airflow
Cat Compaction Control Cat Compaction Control


Operating Weight18497 lb (8390 kg)
Operating Weight - At Rear Drum with ROPS/FOPS8995 lb (4080 kg)
Operating Weight - At Front Drum with ROPS/FOPS9061 lb (4110 kg)
Operating Weight - With Cab18497 lb (8390 kg)
The Cat® CD44B is an 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.


Operating Weight18497 lb (8390 kg)
Operating Weight - At Rear Drum with ROPS/FOPS8995 lb (4080 kg)
Operating Weight - At Front Drum with ROPS/FOPS9061 lb (4110 kg)
Operating Weight - With Cab18497 lb (8390 kg)
Maximum Weight at Front Drum9215 lb (4180 kg)
Maximum Weight at Rear Drum9281 lb (4210 kg)
Operating Weight - With ROPS/FOPS18056 lb (8190 kg)
Standard Compaction Width59 in (1500 mm)
Curb Clearance26 in (663 mm)
Turning Radius - Inside Drum Edge9.6 ft (2941 mm)
Ground Clearance10 in (273 mm)
Maximum Compaction Width111 in (2820 mm)
Static Linear Load156 lb/in (27.8 kg/cm)
Travel Speed - Maximum7.5 mile/h (12 km/h)
Gross Power102 HP (75 kW)
Bore3.89 in (99 mm)
Stroke4.33 in (110 mm)
Engine ModelCat® C3.4B with ACERT Technology
Overall Length166 in (4284 mm)
Wheel Base123 in (3120 mm)
Height - With ROPS/FOPS116 in (2940 mm)
Compaction Width59 in (1500 mm)
Overall Width66 in (1664 mm)
Drum Diameter43 in (1108 mm)
Drum Width59 in (1500 mm)
Drum Width59 in (1500 mm)
Drum Diameter44 in (1106 mm)
Frequency3200 V/m (53.3 Hz)
Vibration SelectionIndependent per drum, front only, rear only, both
Eccentric Weight DriveHydraulic direct, auto reversing
Centrifugal Force per Drum - Maximum17602 lb (78.3 kN)
Centrifugal Force per Drum - Minimum13309 lb (59.2 kN)
Nominal Amplitude - High0.024 in (0.62 mm)
Nominal Amplitude - Low0.012 in (0.31 mm)
Fuel Tank Capacity36 gal (US) (135 l)
Water Spray Tank Capacity159 gal (US) (600 l)

Benefits and Features

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 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.

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.

Split Drum Design

The exclusive split-drum design delivers excellent mat quality in urban environments when frequent turning is required. When turning, the outside drum half rotates faster than the inside drum, eliminating the potential for shoving and tearing that occurs on standard vibratory drum designs. The exclusive axle-type pod design utilizes tapered roller bearings that support each drum half and eliminates any potential for contact between the two halves.

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.

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® C3.4B Engine

The C3.4B engine provides 75 kW (102 hp) of power and meets U.S. EPA Tier 4 Interim and EU Stage IIIB 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 fans direct warm air away from the operator for a more comfortable operating environment.