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Cat Pneumatic Rollers CW34

Cat Pneumatic Rollers CW34

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Last Updated : 2019-03-19
Operating Weight 10 000 kg - 27 000 kg (22,050 lb - 59,525 lb)
Travel Speed - Maximum 12.0 mile/h | 19.0 km/h
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Cat® Compaction Control


Dual Infrared 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.

Versatile Compaction Performance


Compaction Width

Eight 13/80 R20 rubber tires provide overall compaction width of 2090 mm (82") with 25 mm (1") overlap.

Flexible Ballast

Ballast options include modular and non-modular steel, sand, and water. The 6.5 metric ton (7.1 U.S. ton) modular steel can be easily added or removed through bolt-on side panels. The internal, non-modular steel consists of 6.1 metric tons (6.7 U.S. ton). Also, a 3 cubic meter (793 gal) water-tight chamber with baffled compartments prevent surge, and  balance weight.

Oscillating Tires

Oscillating front and rear tires deliver vertical and horizontal forces that reduce air voids, providing surface uniformity. Heat retention covers trap heat to keep the tires warm and prevent pick-up. They can be easily stored when not in use.


The 13/80 R20 rubber tires can be equipped with the optional air-on-the-run system that  enables the operator to quickly adjust tire pressures to increase or decrease static loads for optimal surface quality.

Smooth Operating Powertrain


C4.4 Engine

The C4.4 engine meets U.S. EPA Tier 4 Interim and EU Stage IIIB emission standards and provides 98 kW (133.2 metric hp).


Standard ECO-mode provides fuel efficiency and reduces sound levels.

Exceptional Visibility and Control


Operating Environment

The sliding and pivoting operator station rotates 90° to either side for ultimate comfort and control. The new console design includes an LCD display and push button machine controls that simplify operation for an all-around comfortable operating environment.


The CW34 is an eight wheel pneumatic roller that features a modular ballast system and flexible operating weight of 10 000 kg to 27 000 kg (22,050 lb - 59,525 lb). This machine offers excellent visibility, ECO-mode operation, even compaction, and excels on a variety of materials due to its flexible air-on-the-run capability.



Operating Weight - Maximum Ballast59525.0 lb | 27000.0 kg
Operating Weight - Standard Machine Empty22050.0 lb | 10000.0 kg
Operating Weight - Maximum Water Ballast28660.0 lb | 13000.0 kg
Operating Weight - Maximum Wet Sand Ballast35275.0 lb | 16000.0 kg
Average Weight per Wheel3571.0 lb | 1620.0 kg
Average Weight per Wheel - Maximum Ballast7451.0 lb | 3380.0 kg
Average Weight per Wheel - No Ballast2755.0 lb | 1250.0 kg
Operating Weight - No Ballast22050.0 lb | 10000.0 kg

Operating Specifications

Compaction Width82.0 in | 2090.0 mm
Turning Radius - Inside (1)240.0 in | 6100.0 mm
Turning Radius - Inside (2)20.0 ft | 6.1 m
Rolling Width82.0 in | 2090.0 mm
Turning Radius - Outside342.0 in | 8700.0 mm
Ground Clearance10.0 in | 260.0 mm
Number of Wheels8 | 8
Travel Speed - Maximum12.0 mile/h | 19.0 km/h


Gross Power133.0 HP | 98.0 kW
Bore4.13 in | 105.0 mm
Stroke5.0 in | 127.0 mm
Engine ModelC4.4 | C4.4


Overall Length210.0 in | 5350.0 mm
Overall Width85.0 in | 2160.0 mm
Height - Steering Wheel96.0 in | 2450.0 mm
Height - ROPS118.0 in | 3000.0 mm
Maximum Machine Height118.0 in | 3000.0 mm


Tires13/80 R20 | 13/80 R20

Service Refill Capacities

Fuel Tank Capacity71.0 gal (US) | 270.0 l
Water Spray Tank Capacity100.0 gal (US) | 380.0 l

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