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Wacker Neuson RD12A-90


High performance rollers offer excellent compaction results

The RD12 one-ton roller series features dual drum drive and articulated steering for extremely accurate control. Front drum vibration with static rear drum leaves a quality asphalt finish. Outstanding overall roller performance and a high exciter frequency allows compaction at faster speeds while still delivering even coverage and excellent results.

  • Easily maneuverable units provide flush compaction to curbs and obstructions.
  • Pressurized water system offers consistent water flow. An eight position timer allows the operator to adjust water flow to match conditions.
  • Rear platform and front hood tilt up for easy access and improve machine serviceability.
  • Rollers offer reduced sound levels; units run quieter than competitive machines in the same class.
  • Ideally suited for compaction of granular base surfaces and finish layers on road repairs, driveways, parking lots and and any asphalt surface.


Operating data 

Operating weight w/ ballast 2,689 lb
L x W x H  79.6 x 42.6 x 58 in
Drum width  35.4 in
Drum diameter  22 in
Side clearance right 1.9 in
Side clearance left 3.5 in
Curb clearance right 15.7 in
Curb clearance left 8.2 in
Centrifugal force dynamic (front drum) 3,400 lbf
Frequency  4,200 Vpm
Linear force - front / rear (static) 28 / 41.2 lb/in
Linear force dynamic (front) 96 lb/in
Travel speed forward 5.4 mph
Travel speed reverse 5.4 mph
Surface capacity area 84,281 ft²/h
Gradeability max. 30 %
Turning radius outside 96.5 in

Engine / Motor 

Engine / Motor type  air-cooled, 2-cylinder, gasoline engine
Engine / Motor manufacturer  Honda GX630
Displacement  42 in³
RPM / speed operating speed 3,100 rpm
Operating performance max. rated at 3600 rpm 20.3 hp
Fuel consumption  1.6 US gal/h
Tank capacity fuel 6.1 US gal
Tank capacity water 26.4 US gal