Caterpillar introduces second generation CB-300 E-Series Vibratory Asphalt Compactors
MAY 31, 2006
The new Caterpillar CB-300 E-Series Vibratory Asphalt Compactors represent the second generation of compactors, building upon many of the proven features and design innovations of previous models.
These technologically-advanced compactors add numerous design enhancements that improve versatility and maneuverability, and at the same time reduce sound levels to meet the rigorous EU sound requirements slated for introduction in 2006. The enhancements ensure increased commonality with the rest of the Caterpillar Utility Compactor line.
Compactors in this newest series include the CB-334E, CB-334E XW, and CB-335E.
The previous CB-200 E-Series Asphalt Utility Compactor line introduced the industry to its popular operator station configuration, sliding seat, hydraulic propel lever, accessible water filling port and variety of attachments - such as the traction control (flow divider) and foldable ROPS.
All these popular features remain, but the new Cat CB-300 E-Series takes compaction a step further by enhancing the vibratory system. It features a dual vibration frequency that increases machine versatility for both asphalt and soil applications. In addition, operating sounds are reduced in low vibratory frequency, while its standard auto-vibe function provides superior vibration control and improved high compactive effort. The CB-300 E-Series takes from the industry's best (its own) and makes it even better.
A new dual-vibration frequency sets the CB-300 E-Series compactors apart from previous machines, delivering increased machine versatility in both soil and asphalt applications. The 3,940 kg CB-334E and the 3,670 kg CB-335E retain the highest frequency in their class size at 69 Hz. Coupled with high centrifugal force, these machines reach density requirements in only a few passes. Improved compaction performance has also been attained by the 4,200 kg CB-334 E XW. The CB-334 E XW now offers a higher amplitude, increased by 35% over its predecessor.
The CB-300 E-Series compactors provide the smoothest mat finish with the tapered-bevel drum edge. The drum design also helps avoid marks when working on deep lifts. A standard auto-vibe system stops drum vibration while the machine is not in motion is in neutral. This feature also minimizes undesired waves on the mat surface that often results from changing machine direction during compaction.
The CB-300 E-Series compactors have been designed to fit a variety of commercial applications, including: public and sports facilities, parking lots, motorways, lane additions, city streets, shoulders, and road repairs. They are easily transportable and maneuverable, and are well suited for areas not easily accessed by larger compactors - like low clearance jobsites and narrow city streets.
The operator's station of the CB-300 E-Series compactors has pulled some design commonality from within the proven Cat Utility Compactor range. The operator's station features new handrails, a sliding suspension seat, hydraulic propel lever with wrist rest, and left armrest. The series' lower sound levels appeal to both operators and crew, and are maintained even at the high vibration frequency setting.
Caterpillar compactors have long been engineered for reliability, durability and serviceability and the CB-300 E-Series is no exception. A wider engine hood opening angle and repositioned prop rod within reach from the opening side are only a few of the serviceability enhancements that have been incorporated in the series. Even the most routine service operations, like changing a fuse, are made easier due to strategically positioned, accessible service locations.
Hydraulic routings have been redesigned for optimum accessibility to hoses and components. Remote drains to the engine, hydraulics and cooling have all been located on the right side of the front frame for easy access. And ecological and clean oil draining operations can be handled on site.
The CB-300 E-Series compactors are powered by a Cat 3024C diesel engine, but run at a lower operating speed than the previous series (2,400 rpm instead of 2,800 rpm). While still achieving best-in-class levels, the engine output has been decreased to 34 kW (46 hp) - at the same time maintaining maximum engine torque (at 143 Nm).
Decreased operating speeds result in improved operator comfort and a quieter ride, and reduces fuel consumption. Crews appreciate the longer intervals between fill ups. Machine travel speed has been increased from 11.5 km/h to 12.5 km/h. And, the Cat 3024C engine meets all EU Stage II emissions requirements.
A new, larger aluminium radiator offers improved cooling capacity and integrates both water and oil coolers. It's also easier to clean and the entire cooling system can be easily and quickly removed for servicing.
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