Caterpillar is offering revamped soil compactors

4018 Caterpillar Paving intends to increase sales into the soil compaction sector with its B-series CS and CP single drum machines. The CS68B and CS78B are smooth drum machines while the CP68B and CP78B have a single padfoot drum. The CS68B and CP68B compete in the 14tonne class while the larger CS78B and CP78B are 17tonne class compactors. The machines all share features such as the new high comfort, high visibility, climate-controlled cab. High productivity is claimed due to a combination of proven vibration systems, greater weight at the drums and best-in-class amplitude, according to Caterpillar. Dual pump propel systems provide traction and gradeability while automatic speed control and automatic vibration allow uniform, quality compaction. Power is supplied by Tier 4 Interim/Stage IIIB compliant engines with good fuel economy while hydraulic service intervals of three years/3,000 hours help reduce running costs.

A sophisticated compaction control system is fitted while two different compaction measurement packages are available and can be fitted in the factory, along with SBAS or RTK GNSS mapping capabilities linked to an operator display. The Compaction Meter Value (CMV) system is an optional accelerometer-based tool for use on smooth drum machines in granular soils that can measure 1-1.2m into the ground. This gives a picture of what is in the ground and can identify buried objects such as rocks or areas of insufficient compaction. Meanwhile the Machine Drive Power (MDP) package indicates soil stiffness by measuring rolling resistance and this is offered on smooth drum rollers, padfoot machines and also smooth drum units with shell kits fitted. This versatile package can be used whether the drum is vibrating or not and on all soil types, while it measures to depths of 300-600mm.

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