Two electric Hamm tandem rollers offer the same compaction power as their diesel counterparts, the company says.
The 5,512-pound HD 10e delivers about 8,070 lb.-ft. of centrifugal force; the 5,953-pound HD 12e about 9,150 lb.-ft. Drum widths are 39.4 inches and 47.2 inches, respectively.
Read about how Skanska has deployed a Hamm electric roller in a pilot program.
Four of the Hamm rollers are available with oscillation drums; two models are combination rollers. The vibration or oscillation unit is driven by electric means only via specially designed, compact synchronous motors, which doubles the efficiency rating reduces the energy demand, according to the company.