The CA6500 are heavy rollers designed for the toughest compaction applications. Rockfill can be compacted in 6.6-feet thick layers, in which the size of the rocks can be up to 3.3 ft in diameter. The smooth drum shell thickness is 1.7 (CA5000) and 1.9 in (CA 5500, 6000 and CA6500), which gives a long productive lifetime for compaction of rockfill, gravel and sand. Pad-foot drum is available for compaction of silt and clay materials. These rollers are a great investment for the bigger projects as compaction performance and capacity are outstanding.