11.Atlas Copco LP8504 Roller Bluetooth remote ­control Oil cooler Efficient drum pad design No overhang Technical Specifications Operating mass 3467.87 lb Centrifugal force - Drum width 24 25/32 inch Engine brand Hatz Power 12.5 kW Speed, work - Speed, transport - Amplitude 1/32 inch Frequency 32 Hz Sound power level guaranteed* 106 dB(A)