Ammann Articulated Tandem Rollers Feature Symmetrical Cab, Fingertip Steering
Two new articulated tandem rollers from Ammann offer advanced machine control that improves safety and productivity on the jobsite.
The Ammann ARX 90-2 and ARX 110-2 Articulated Tandem Rollers utilise the next generation of Human Machine Interface (HMI) that facilitates easy, efficient operation. One component of HMI is fingertip steering (FTS), which makes the rollers more operator friendly, comfortable and easy to control.
FTS replaces the traditional steering wheel and allows operators to keep both hands on the armrests for enhanced comfort and control. It also offers palm support that prevents fatigue and injuries from repetitive motions.
“Operators love the fingertip steering,” said Josef Dementev, Global Product Specialist Machines at Ammann. “Their workday is much less stressful, which makes them more productive – and makes the jobsite safer, too.”
Varied applications
The compactors follow the Ammann Solid Power DNA and excel in ProDuctivity, ErgoNomics, ServiceAbility + Sustainability. These efforts deliver a wide range of benefits such as operating weight, compaction width, a variable range of frequencies, compaction power and off-set mode (crab mode).
The machines are most productive when used in high volume asphalt applications such as highways, industrial developments, parking areas and airfields.
Among the key features of the new rollers, in addition to fingertip steering, are the machine design, operator station, drum construction, and engine compartment.
Machine design and cab
At first glance, it’s immediately apparent that the ARX 90-2 and ARX 110-2 were designed without front and rear crossbeams. This modification provides excellent visibility and improves safety. “The lack of beams was key to creating the new symmetrical cab, which is among the key enhancements,” said Dementev.
Design changes also make the machines more compact while expanding sight lines to all drum surfaces and edges.
The 360º visibility from the operator station establishes a new market standard. The symmetrical cab integrates four ROPS posts directly in the main structure and close to doors, rather than in the cab’s corners.
This provides operators with an exceptional view of the entire machine, which advances productivity and safety. The ARX 90-2 and ARX110-2 operator stations extend beyond the 1-by-1 metre rule (in both directions) – another significant safety feature.
The spacious cab is extremely quiet. It is suspended and isolated from external heat and vibration to keep operators comfortable, fresh and focused.
Fuel and water tanks are well designed and positioned, which improves the machines’ appearance and access to components.
Making operation intuitive
The innovative operator station has integrated, centralised controls that are easy to reach at all times, regardless of the seat position. This approach reduces reaction times for increased safety.
The operator’s seat is fully adjustable, with a 270° rotation to optimise visibility from the cab.
A new 10-inch control display helps operators manage all machine functions simply, safely and quickly. This includes vibratory parameters, lights, and ACEforce – Ammann’s proprietary Intelligent Compaction system.
In addition to displaying machine functions, the monitor provides an overview of fluid levels, indicators, machine status and warnings. The display is installed on an adjustable support, in front of the operator, and moves with the seat for easy viewing. All these features – a symmetrical cab, unique operating station and rotating seat – are keys to using the machines in forward and reverse without limitations.
Absolute performance
The operating width of the ARX 90-2 and ARX 110-2 is 1680 mm (66,1 inches).
Standard on both rollers is a two-stage vibratory system with a multiple range of frequencies that helps operators precisely adjust compaction output. The ARX 90-2 / ARX110-2 have adjustable frequencies ranging from 37-54 Hz and are able deliver compaction output in the range of 47-120 kN per drum.
A high frequency (HF) version has an enhanced vibratory system that can reach additional frequencies for further compaction speed. The HF version is designed chiefly for the U.S. market.
Powerful engine
The rollers are available in two main emission stages.
Machines for highly regulated countries meet US EPA Tier 4f / EU Stage V emissions standards. The machines are equipped with Perkins 904J diesel engines with power output of 90 kW (121 hp) and after-treatment technology EGR+DOC+DPF+SCR.
Machines for less-regulated countries (US EPA Tier 3 / EU Stage IIIA) are equipped with a Perkins 904D with power output of 90 kW (121 hp) with EGR valve.
The machines need only be fuelled once every two shifts because of a large tank, with a capacity of 200 litres (52,8 gallons); and reduced fuel consumption that results from a well-balanced hydraulic system and EcoMode’s control of RPM.
ECOdrop philosophy focuses on machine efficiency
The rollers also reflect a commitment to lower the total cost of ownership and machine maintenance. The focus of these efforts is to reduce the volume of fluids required and to make service points extremely accessible. This commitment – known as ECOdrop – makes all new products significantly more environmentally friendly.
ECOdrop on ARX 90-2 and ARX 110-2
As part of ECOdrop, the rollers utilise EcoMode, which enhances fuel economy and lowers fuel consumption by 8% when compared with the previous generation.
There are four main service intervals (250, 500, 1000, 2000 hours).
Integrated alerts inform the operator when it’s time for machine maintenance. This helps organize scheduling service and parts availability to reduce downtime and lower ownership costs.
An advanced drum drive system reduces gearbox oil usage by 25% when compared with the previous generation of machines. Drum bearing oil bath fluid has been reduced by 7%.
The articulated joint and hydraulic cylinders are completely maintenance-free.
Serviceability
Machine data is collected from all regions and is now reflected in innovative machine development as well as ECOdrop, which makes the machines mostly maintenance-free – and more environmentally friendly.
Maintenance is faster and more convenient thanks to a highly accessible engine compartment with a robust design that protects all major components. All maintenance and service points are accessible from the ground. Machines are equipped with external draining points for all operational fluids such as engine oil, hydraulic oil and coolant.
All rollers are equipped with an auto-diagnostics system that communicates with service technicians. External testing ports on hydraulic components enable quick diagnosis and reduce machine downtime.
Wide customisation
A wide range of options can make the machines more productive, comfortable and serviceable.
Off-set (crab mode) improves machine versatility by increasing working width and permitting compaction close to curbs.
The machine is also available in a “combi” version, with 4 tyres to increase machine usage in a wider range of applications.
High Frequency (HF) drums deliver higher compaction/paving speed while maintaining proper impact spacing.
Oscillation
The ARX 90-2 and ARX 110-2 can be equipped with an oscillation drum, which uses the back-and-forth movement of the drum with a constant static load to achieve compaction goals in sensitive applications (such as cold joints, thin layers, etc.). When oscillation is not required, the ARX 90-2 and ARX 110-2 utilize a second drum with a heavy-duty, two-stage vibrator and easy adjustment of amplitude and frequency.
Compaction measuring system
The ACEforce system makes it easier for operators to track compaction progress. This measuring system shows the actual kB value on the display and thus significantly reduces the time required to achieve the maximum compaction level.
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