Ammann's new petrol-powered light tandem roller utilizes side-free drums

Ammann's new light tandem roller is petrol-powered and features side-free drums that enable compaction in the tightest sites.

The Ammann ARX 10.1 StV utilizes the Honda GX630 (15,5 kW / 21HP) petrol engine, which reduces ownership costs daily. It meets the latest EU Stage V/U.S. EPA Phase III emission regulations.

The engine is more compact than its diesel counterpart. The smaller size enables positioning that allows cooling from all sides, helping the machine to perform in hot ambient temperatures.

Beyond size, Ammann says that the use of petrol brings several other advantages:

• Petrol is generally less expensive, so there is likely a cost advantage with every filling of the tank.
• There is no need for a diesel particulate filter (DPF) and the cost and hassle that go with it.
• Maintenance of a petrol engine is less costly than maintenance of a diesel engine.
• Petrol is often more convenient for smaller construction companies and rental contractors.

This compactor is the first in a line of Ammann light tandem rollers with petrol engines that meet EU Stage V and U.S. EPA Phase III emissions standards.

Side-free drums

Ammann says that the ARX10.1 StV is the only machine on the market with uniquely designed drum consoles installed from a single side. This is known as "side-free drums."

The drums are support-free on the operator's right side. This allows compaction work on the tightest of job sites. Drum working widths are 900 millimetres (35.4 inches) and drums are installed in-line.

Additional key features

A hydraulic system is the core of the powertrain structure. Both drums are equipped with strong drive motors that bring ideal traction, gradeability, and speed. The motors are equipped with a negative parking brake mechanism that ensures secure parking when the engine is switched off.

The front drum is equipped with a vibratory system capable of delivering 16.4 kN @ 76 Hz of compaction power, which is sufficient for a wide range of job sites. The rear drum is static and has no vibratory unit.

The pressurized water sprinkling system has a tank capacity of 110 litres (29.1 gallons). An interval water flow regulation mechanism, controlled by the operator, ensures ideal water flow and extends sprinkling time. A two-stage filtration system (water inlet and central filter) is easy to reach and can be cleaned without draining the tank.

Operability

The operator platform is fully isolated from vibration and equipped with a comfortable seat. All operational elements are located on the main dashboard and can be easily reached.

A multi-functional dashboard display monitors key operating functions. The ARX 10.1 StV is available with a mechanical drive lever that is directly connected to the hydraulic drive pump.

Steps are located on both sides of the rear frame to provide access to the operation station. Further convenience and safety are delivered through an easy-to-grip handle and a design that places the steps outside of the machine's contour.

The narrow design and the longitudinal engine location provide perfect visibility from the operator station to all directions and edges. This improves compaction properties and safety.

Cost of ownership

The ARX 10.1 StV is designed according to the ECOdrop philosophy, which utilizes advanced engineering to deliver maintenance-free solutions, minimize fluid usage, and maximize access to filters.

The roller is equipped with a maintenance-free steering cylinder and articulation joint that utilizes a spherical ball bearing. The vibratory mechanism is lubricated by grease that also lasts for the life of the machine, requiring no maintenance and reducing the risk of damage. 

The engine location and wide-opening hood make daily maintenance points and filters easy to reach. The location of fluid drainage points speeds periodic maintenance.

Applications of the ARX 10.1 StV 

The compactor is essential for use on small repair works in city centres, malls, and business areas, cycle paths and other applications.

Intuitive control and easy-to-explain operation benefit less experienced operators and those who rent the machine.