The Cat CW16 pneumatic roller is available as a standard nine-wheel model with a 69-inch compaction width or as an optional 11 -wheel model with an 84-inch compaction width. Depending on ballast, operating weight varies from an 11,464-pound base configuration to an approximate maximum weight of 33,000 pounds for the nine-wheel configuration and 32,850 pounds for the 11 -wheel configuration. Per-wheel weight can be varied from 1,280 pounds to 3,680 pounds for the nine-wheel model, and from 1,060 pounds to 2,975 pounds for the 11 -wheel model. Oscillating front wheels assist in compacting soft voids across the entire machine width, and Cat says the 11-wheel configuration increases efficiency in chip-and-seal applications. The machine's pressurized water-spray system is designed with dedicated spray nozzles for each wheel. Two engines are available: The Cat C3.4B ACERT (Tier 4-F) and the Cat C4.4 (Tier 3). Both engines are rated at 101.9 horsepower.
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