Construction machinery manufacturers are offering a new generation of sophisticated single-drum rollers. These machines offer higher performance and increased efficiency, benefiting from the latest low-emissions systems and machine control technology.
Ammann is offering the upgraded ARS models, which share a number of key features such as not having a rear axle. This has allowed the firm to design a more compact machine, with the engine positioned lower, improving the centre of gravity and boosting stability even on slopes. The oscillating articulation joint connects the two frames, reducing the machine's length and ensuring continuous ground contact. The novel design means that the ARS models have a 15% shorter wheelbase than competing models, while offering 67% gradeability.
The firm claims good all-round visibility while the operators benefit from a multi-function display, electronic drive lever and embedded self-diagnostics. The machines are telematics-ready, maximising machine utilisation and improving fleet management by collecting, sharing, and analysing relevant data, which is transmitted directly from the field in real time. Optional systems are available to provide guidance and accurate jobsite documentation. This data helps optimise jobsite progress, improve efficiency and reduce environmental impact.
Weights range from the 3.5tonne ARS 30 to the 21.9tonne ARS 220. Multiple vibratory settings enable precise compaction on varied materials. The reconfigured frame makes the recent ARS models more compact and better on slopes. The ECOdrop system improves fuel consumption and reduces the quantity of operational fluids needed.
New tools available include the Ammann Compaction Expert (ACE) and Ammann Documentation System (ADS).
Caterpillar’s new CS13GC soil compactor weighs in at 12.6tonnes and is driven by a Stage V/Tier 4 Final emissions-compliant C3.6 diesel from Caterpillar that delivers 92kW. The firm says that the machine has been designed to offer durability and reliability as well as productivity. The machine delivers a compaction force of 36.2kg/cm while featuring a large diameter drum that is 2.1m-wide. Low owning and operating costs are claimed along with a reliable powertrain and high compaction performance.
The CS13 GC features an easy-to-use operator interface and good visibility to the ground and drum edges. An auto-vibe function helps operators maintain consistency. The proven vibratory system is designed for reliability and the CS13 GC smooth drum roller is suited for granular soil applications or cohesive soil applications with the use of an optional padfoot shell kit. Eco-Mode, extended service intervals and a hitch with sealed-for-life bearings that do not require routine maintenance help keep operating and maintenance costs low. The propel system is driven by a single pump design and suits duties on flat to moderate grades.
Newly unveiled from Dynapac is its CA1300D e electric soil compactor. This is the firm’s first electric soil roller. The new CA1300D e offers the same performance and ease of operation as a diesel roller, but with lower noise levels and zero exhaust fumes. Low running costs, few moving parts, and reduced maintenance are claimed, with no need for engine oil and filter changes.
The machine features a powerful battery delivering the same static linear load, amplitude, gradeability, and travel speed as the diesel model. The standard 31.2kWh battery allows for 3.5 hours of operation and for extended use, a 62.4kWh battery option is available providing 7 hours of operation.
The CA1300D e is equipped with an integrated 22kW charger, fully charging the smaller battery from 0% to 100% in just 1 hour and 25 minutes. Additionally, a fast charger option is available, with charging times currently being validated. The machine supports Type 2 and CCS2 plugs.
Hamm is expanding its HC series with its 13tonne HC 130i C VA compactor. The firm says that using the sophisticated Smart Compact system, allows automatic compaction to a target value. The new model joins the 20tonne and 25tonne HC 200i C VA and HC 250i C VA models with similar technology.
The variable amplitude (VA) drum enables automatic compaction depending on the ground conditions and machine capacity. This technology is said to ensure homogeneous compaction and increase cost-effectiveness, reducing the number of extra passes and fuel consumption. The machine meets exhaust emission standard EU Stage V and EPA Tier 4f.
Drivers can choose automatic or manual mode. The machine control system regulates amplitude for the former; in manual mode, five fixed amplitudes are available. Before compaction, the target compaction value in MN/m² can be specified based on load-bearing capacity values. The automatic regulation of compaction forces is delivered by the Smart Compaction Value (SCV), which is determined by Hamm and continuously and precisely recorded independently of travel speed, frequency, or direction of travel.
The new VA compactors offer numerous advantages for operators and construction companies. Automatic adjustment of amplitudes ensures homogeneous compaction and prevents over-compaction and aggregate crushing.
JCB is introducing its VM118D single drum soil-compactor, which competes in the 12tonne class and features some of the proven systems from the existing 116D and VM117 models. The front section, including the complete vibratory drum assembly is taken from the non-legislated market 116D model, while the rear section is based on the India Domestic VM117 Stage V compactor.
The VM118D is powered by a 55kW JCB 430 diesel engine. A notable feature is that this Stage V-compliant engine has no Diesel Exhaust Fluid (DEF) or Selective Catalytic Reduction (SCR) to meet the emissions regulations, reducing cost and complexity for customers.
Smooth and padfoot drums are being offered and the machine can deliver centrifugal forces of up to 256kN. The firm says that this delivers high compaction, with fewer passes. The thick steel plate used for the drums helps boost vibrating mass as well as durability for use in tough applications.
The machine has four traction modes and an optimised hydraulic system allowing it to operate on gradients of up to 55%. The vibratory drum offers frequencies of 32Hz or 36Hz and a choice of two amplitudes: 1.8mm and 0.8mm. There are also two centrifugal force settings on offer: 256kN and 147kN.
JCB claims that the VM118D is the first and only Stage V/Tier 4 Final-compliant soil compactor that weighs more than 10tonnes but has no requirement for DEF. This reduces cost and complexity and makes the machine easier to operate and to maintain for customers.
The soil-compactor comes with the option of JCB’s INTELLICOMPACTION system and has Connected Compaction through the JCB LiveLink telematics system. A LiveLink subscription is included with the machine for the first five years of ownership.
The firm claims that the wide-opening engine cover offers good access to all service points from ground level. The layout of the engine compartment also allows for a low bonnet angle, maximising visibility to the rear of the machine.
The VM118D benefits from a new ROPS/FOPS cab and operator station, boasting all of JCB’s ergonomic design features. Flat glass all around reduces cost in the event of damage. A JCB UX touchscreen used on the latest X-Series excavators displays machine functions and provides access to all menus. The cab package includes LED front and rear working lights, four amber beacons integrated into the roof, flat glazing for easy replacement and an air conditioning and heating unit integrated into the cab roof. An optional safety pack incorporates a road lighting kit, white noise reversing alarm and an immobiliser.
According to Volvo CE, its latest, SD45, SD75, SD115B and SD125B single drum rollers offer low noise operation combined with high output.
The smallest model is the 5tonne class SD45, with a 1.4m-wide drum and 55kW engine. Weighing 7.2tonnes, the SD75B has a 1.7m-wide drum, is powered by an engine delivering 55kW and meets Tier 4 Final emissions requirements. The SD115B has a 2.1m-wide drum with the option of five frequencies, tips the scales at 11.64tonnes and is powered by a Tier 4 Final engine delivering 110kW. Top of the range is the SD125B, weighing in at 12.1tonnes, featuring a 2.1m-wide drum with the option of five frequencies and using the same 110kW, Tier 4 Final-compliant diesel.
Other key features include high dynamic forces and frequencies for faster compaction, large drum diameters, optimised engines and drivelines that minimise fuel consumption and good all-round visibility.
