Ammann’s New Light Tandem Rollers Offer Host of Benefits

Ammann’s New Light Tandem Rollers Offer Host of Benefits

May 08, 2021

Ammann’s New Light Tandem Rollers Offer Host of Benefits

Operation Made Easier, Vibratory Frequencies Increased

LANGENTHAL, Switzerland – Ammann has released a new series of light tandem rollers that are easy to operate, transport and maintain. The rollers retain their ability to work in-line or off-set, enabling compaction against curbs and other obstructions – and delivering productivity in more open spaces.

The new double drum rollers are the ARX 12-2, ARX 16-2 and ARX 20-2. Also introduced was a combination version, the ARX 16-2C, which utilises a steel drum in front and pneumatic tyres in the rear for higher machine traction and improved sealing of surfaces.

The rollers are powered by Kubota engines that meet EU Stage V and U.S. EPA Tier 4f emissions standards. A new vibratory circuit setting delivers expanded vibratory frequencies that facilitate quicker compaction.

“The new setting enables vibratory frequencies to increase (3% at low frequency / 6% at high frequency),” said Vlastimil Medek, Global Product Strategy at Ammann. “Improved impact spacing also optimises compaction quality.”

Controls are logically located and intuitive. Switches for lights and vibration have been repositioned for optimal access. A new armrest with updated layout and integrated functions, including the parking brake, helps even unseasoned operators succeed.

“ARX dashboards and controls are consistent with other Ammann models, making it easy for crew members to switch between machines,” said Medek. “This is particularly important for the rental market and when dealing with inexperienced operators.”

A new, orange safety belt aids in monitoring whether crew members are properly secured. A redesigned ROPS lock protects operators and reduces noise. A large handle makes it easier to access the machine.

Another key improvement is effortless switching between drive modes. In previous generations, such action required a service technician or perhaps a representative from the Dealership. The modes can now be changed easily.

Soft drive enables smooth, steady adjustments to directional changes – particularly important when working on asphalt. Hard drive responds quickly to directional changes. Panic stop idles the machine if the operator makes very sudden directional changes or significantly adjusts the travel lever position.

Front and rear rubber buffers, which protect lights and scrapers, have been thickened and widened and moved to a central location. Lights are set in the machine frame for added protection, and directional and working lights have been centralised. The articulation joint lock has been redesigned and repositioned for better protection.

Transporting the machine has never been easier – and safer. Vibration is automatically disabled when in “loading” or “transport” mode. A higher central lifting point is easier to access. Expanded lashing points simplify securing the machines.

Draining points have been relocated to external locations, preventing spills and reducing maintenance time by 75%. The battery disconnect switch is at the main base of the engine for convenient access.

Like the previous generation of Ammann ARX Light Tandem Rollers, the machines can operate with off-set or in-line drum configurations.

Off-set requires operators watch only one drum, knowing the second will be a safe distance from an obstruction. This results in cohesive compaction up to the barrier. The in-line setting, which enables equal distribution of compaction forces, is preferred on more open jobsites.

“These are the rollers that crews put to work when they need to achieve compaction right up to an obstruction,” Medek said.

 

Key features of the rollers include:

 

Technical specs:

Operating weight: 1460-1640 kg  (3219-3616 lb)
Maximum weight: 1610-1740 kg (3549-3836 lb)
Drum width: 820–1000 mm (32.3-39.4 in)
Max working off-set mode: 48 mm (1.89 in)
Engine: Kubota – 15,6 kW (21.2 HP), EU Stage V/ U.S. EPA Tier 4 final

 

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