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Technical specifications

RD28-120 RD28-120C RD28-120 O

Operating data 

Operating weight with ROPS lb 5,941.4 5,720.9 6,073.7
Operating weight max. lb 7,517.7 7,319.3 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 47.3 47.3 47.3
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 2,943.1 2,954.2 2,943.1
Axle load Rear lb 2,998.3 2,766.8 3,130.5
Curb clearance  in 22.5 22.5 22.5
Centrifugal force front Level I lbf 11,690.1 11,690.1 11,690.1
Centrifugal force front Level II lbf 7,193.9 7,193.9 7,193.9
Centrifugal force rear Level I lbf 11,690.1
Centrifugal force rear Level II lbf 7,193.9
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 static (front) lb/in 63.95 63.95 63.95
Linear force static (rear) lb/in 65.1 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 Kubota Kubota
Operating performance ISO 14396 hp 24.8 24.8 24.8
Tank capacity Fuel US gal 11.1 11.1 11.1
Tank capacity Water US gal 47.6 47.6 47.6

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