ARX 20 TIER 4i

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The Ammann ARX 20 Tandem Roller is a light, articulated ride-on roller that delivers optimum compaction results through its double-drive and double-vibration systems.

The roller works flush against curbs and other obstructions to eliminate the need for special edge compaction efforts. Excellent visibility to the drums also helps the operator.

An electric drive-lever makes for smooth starting and stopping and is among the reasons the roller is popular with operators. Other operator benefits include a rubber-mounted platform that limits vibration and an intuitive instrument panel.

The ARX 20 is built with high quality, long-lasting components that reduce the cost of ownership over the lifetime of the machine. It is reliable, economical, safe and fuel efficient.

  • Highlights

  • Specifications

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  • Soil and asphalt applications
  • High-torque, water-cooled Yanmar diesel engine
  • 2 working speeds
  • 2 frequencies with 2 centrifugal forces
  • Single or double vibration with double traction
  • Optimal drum diameter
  • Balanced weight front and rear
  • Multiple water filters
  • 2 scrapers per drum
  • Easy-to-operate, ergonomic instrument panel
  • Rubber-mounted operator’s platform
  • Tight turning radius
  • Unobstructed view of drums
  • Compact dimensions for transport
  • Smooth starting and reversing by electric drive-lever
  • Bearings and central articulated joint lubricated for the machine’s life
  • Easy access to maintenance points, water filters and nozzles
  • Outside drain plugs for quick fluid changes
  • Foldable ROPS
  • Vandal protection of multiple components


A = Machine length2017 mm
B = Wheelbase1440 mm
C = Machine height2402 mm
D = Machine height (folded ROPS)1731 mm
E = Drum width1000 mm
F = Machine width1046 mm
G = Machine length2222 mm
H = Ground clearance228 mm
I = Drum diameter577 mm
J = Drum shell thickness13 mm
K = Machine width (total)1054 mm
L = Machine length (folded ROPS)2327 mm
Operating weight CECE1570 kg
Operating weight max.1700 kg
Static linear load (full-flush)7,9 kg/cm
Wheel load– kg
French classificationPV2
Drums (Wheels)
Width1000 mm
Offset50 mm
Rolling width max.1050 mm
Diameter mm575 mm
Thickness mm13 mm
Number of wheels
Tire size
Tire-axle width– mm
Engine typeYANMAR 3TNV76 Diesel/Water
Emmission class— / EPA Inter 4
Power output ISO 304615,0/20,4 kW / HP
Cylinder/ltr.3 cyl / 1116 No./ccm
1. /2. working speed2,100 / 2,400 rpm
Travel speed km/h0 – 8 km/h
Gradeability with / without vibr.30 / 40 %
Electric System
Batterie / Capacity12/77 V/Ah
Turning radius inside2075 mm
Steering / Oscillating angle31/5 +/-°
Amplitude0,45 mm
Frequency at 2100/2400 rpm58/66 Hz
Centrifugal force – max.24 kN
Water tank110 l
Anti-adhesive– l
Hydraulic tank16 l
Diesel fuel tank26 l
  • Front and rear vibration and drive
  • Control system with emergency stop
  • Pressurised pulse interval sprinkler system
  • Ammann Vibration Control
  • Central lifting hook
  • 2 working frequencies
  • Hydraulic test port
  • CE-Kit with folding ROPS and working lights
  • Road lighting
  • Canopy
  • Asphalt thermometer
  • Reverse alarm
  • Battery disconnection switch
  • Additional working lights (ROPS mounted)
  • Arm rests
  • Second drive-lever, left
  • Edge-cutter incl. multi-function lever
  • Bio-degradable hydraulic oil
  • Drums in line
  • Customer colour
  • Warning beacon

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