Lead Forensics


Sakai SV400TF Roller

Sakai SV400TF Roller
Key Features
Kawasaki’s high-grade Electric Power Steering (EPS) system enhances handling and ride comfort
High centrifugal force outputs
Several amplitude and frequency setting combinations
All vibration controls at instrument panel
Heavy duty center hitch design
Superior shock isolation system
Independent drum vibration
ROPS and seat belt
Smooth drum shell kit

Wacker Neuson RD12 Roller

Wacker Neuson RD12 Roller


The RD 12 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.

Key Features

  • 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.


Operating data  
Operating weight w/175 lb operator lb2,4912,498
L x W x H  in71.8 x 40.8 x 90.671.8 x 40.8 x 90.6
Drum width  in35.435.4
Drum diameter  in2222
Side clearance Right in1.91.9
Side clearance Left in3.93.5
Curb clearance Right in15.715.7
Curb clearance Left in8.28.2
Centrifugal force Dynamic (Front Drum) lbf3,4003,400
Frequency  Hz7070
Linear force Static (Front/Rear) lb/in28/4128/41
Linear force Dynamic (Front) lb/in9696
Travel speed Forward mph5.45.4
Travel speed Reverse mph5.45.4
Surface capacity Area ft²/h84,28184,281
Gradeability Maximum %3030
Turning radius Outside in96.596.5
Engine / Motor  
Engine / Motor type air-cooled, 2-cylinder, gasoline engineair-cooled, 2-cylinder, gasoline engine
Engine / Motor manufacturer Wacker NeusonHonda
Displacement  in³39.942
RPM / speed Operating Speed rpm3,1003,100
Operating performance Max Rated at 3600 rpm hp20.520.3
Fuel consumption  US gal/h1.351.6
Tank capacity Fuel US gal6.16.1
Tank capacity Water US gal26.426.4

Wacker-Neuson RD27-120 Tandem Vibratory Drum

2013 WN RD 27-120
Wacker Neuson’s RD 27 series provides the ultimate in compaction versatility. Each model offers a choice of high or low compaction force to fit a variety of conditions and applications. Dual frequency per drum is throttle lever controlled and accurately matches the roller to the job. Lower centrifugal force is ideal for asphalt applications while higher centrifugal force is better suited for work on granular subbases.

Key Features

 Length 99 in. (2,500 mm)
 Height 109 in. (2,770 mm)
 Width 51 in. (1,305 mm)
 Weight 5,692 lbs. (2,582 kg)
 Curb Clearance Right / Left: 19 in. (474 mm)
 Outside Turning Radius 12 ft. (4 m)
 Operating Weight 6,226 lbs. (2,824 kg)
 Engine Make Perkins
 Engine Model 403D-15
 Engine Type Liquid-cooled, 3-cylinder, 4-stroke
 Gross Horsepower 32.7 hp (24.4 kW) @ 2,800 rpm
 Fuel Type Diesel
 Fuel Tank Capacity 13.5 gal. (51 l)
 Gradeability Maximum: 35%
 Travel Speed Forward / Reverse: 0 – 6.2 mph (0 – 10 km/h) infinitely variable
 Application Asphalt
 Drum Width 47 in. (1,200 mm)
 Drum Diameter 28 in. (700 mm)
 Water Tank Capacity 40 gal. (150 l)
 Force Dynamic Centrifugal Per Drum: 9,330 lbf (41.5 kN)
Dynamic Linear Per Drum (maximum): 198 lbs./in. (35 N/mm)