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Technical specifications

RD28-120 RD28-120C RD28-120 O

Operating data 

Operating weight with ROPS lb 5,941 5,721 6,074
Operating weight max. lb 7,518 7,319 7,650
L x W x H  in 96.9 x 51.6 x 94.1 96.9 x 51.6 x 94.1 96.9 x 51.6 x 94.1
Drum width  in 47.2 47.2 47.2
Drum diameter  in 28.4 28.4 28.4
Operating width  in 49.3 48 49.3
Ground clearance middle in 11 11 11
Drum type front smooth / undivided smooth / undivided smooth / undivided
Drum type rear smooth / undivided tires smooth / undivided
Axle load front lb 2,943 2,954 2,943
Axle load rear lb 2,998 2,767 3,131
Curb clearance  in 22.5 22.5 22.5
Centrifugal force front level I lbf 11,690 11,690 11,690
Centrifugal force front level II lbf 7,194 7,194 7,194
Centrifugal force rear level I lbf 11,690
Centrifugal force rear level II lbf 7,194
Frequency level I Vpm 4,020 4,020 4,020
Frequency level II Vpm 3,120 3,120 3,120
Amplitude  in 0.02 0.02 0.02
Oscillation frequency level I Hz 39
Oscillation frequency level II Hz 30
Tangential amplitude  in 0.04
Oscillation force  level I lbf 8,992.4
Oscillation force  level II lbf 5,170.6
Linear force - front / rear static lb/in 63.95 / 65.1 63.95 / 0 63.95 / 67.4
Advance travel max. ft/min 656 656 656
Gradeability with vibration % 30 30 35
Gradeability without vibration % 40 40 40
Turning radius inside in 93.3 93.3 93.3

Engine / Motor 

Engine / Motor type  3-cylinder diesel engine 3-cylinder diesel engine 3-cylinder diesel engine
Engine / Motor manufacturer  Kubota D1703 Kubota D1703 Kubota D1703
Operating performance ISO 14396 hp 24.8 24.8 24.8

Filling capacities 

Tank capacity fuel US gal 11.1 11.1 11.1
Tank capacity water US gal 47.6 47.6 47.6