Equipment

CW34 Pneumatic Roller

Caterpillar

July 26, 2012 - Equipment

Caterpillar’s CW34 Pneumatic Roller is an eight-wheel roller with an operating range from 10 to 27 metric tons. This machine performs well on granular materials as well as all types of asphalt mix designs and can be used on all phases of compaction. Typical applications include highways, city streets, county roads, lane additions, industrial sites, overlays, airport runways, and other production-sized jobs.

The CW34 delivers compaction with flexible ballast, oscillating front and rear wheels, front suspension, and optional air on the run. Rear ballast options include modular and non-modular steel, sand, and water. The modular steel ballast system can be added or removed. The oscillating front wheels deliver vertical and horizontal forces that reduce air voids, ensuring uniformity across the surface, while the air on the run option allows the operator to quickly adjust wheel pressures in order to increase or decrease static loads.

This machine offers exceptional visibility due to the new console design and standard sliding station that rotates 90º to either side. The operator can easily view wheel edges as well as a one-by-one meter in front of the machine. An LCD display and push button machine controls simplify operation.

The CW34 powertrain functions much like an automotive-type system with continuously variable engine speed adjustment at the propel lever. An automatic speed control feature enables the operator to tune the system for a maximum speed within each of the three ranges including low, intermediate, and high. When operating in intermediate and high, the system shifts smoothly through the speed ranges and offers a maximum speed of 19 km/h (12 mph) for quick movement around and between job sites. The system also has the ability to coast, leading to less fuel consumption and lower sound levels for an all-around more comfortable environment.

The CW34 utilizes the Cat C4.4B engine with ACERT Technology and can be outfitted for highly regulated or lesser regulated countries. These machines are capable of operating at temperatures up to 120º F with maximum engine load. The powertrain comes standard with ECO-mode and automatic speed control.

Eight 13/80 R20 rubber tires provide an overall compaction width of 82 inches with 1-inch overlap. Each wheel is equipped with self-adjusting scrapers in order to prevent asphalt from adhering to the wheel surface.

The pressurized Cat water spray system is designed with dedicated spray nozzles for each wheel. The system includes a single water pump, triple filtration, and adjustable intermittent operation. Triple filtration with filters located at the fill point, water pump, and spray nozzles offer protection against clogs. The adjustable intermittent mode conserves water and minimizes re-fills. An optional emulsion spray system with dedicated tank, lines, and spray bars enables releasing agents to be utilized on the wheels for additional protection against adhesion.

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