The Ammann ARR 1575-2 trench roller from Ammann, Langenthal, Switzerland, is the company’s new, slimmed-down machine. It has a width of 23.6 inches, compared with the previous 25.2-inch model. “That size reduction might not sound like a lot, but it makes a big difference,” Lukas Jakl said. “It fits more places, of course. Just as important is the additional maneuverability the narrower frame brings.”
Another maneuverability factor is a central steering joint with two hydraulic cylinders that distribute force equally across the machine.
When operating in more open spaces, drum extension kits can increase the working width up to 33.9 inches and boost the surface compaction output.
The vibratory system uses dual eccentric shafts per drum for precise energy transmission to the compacted material. The manufacturer listed the following benefits of this technology:
- It is more adaptable to material sensitivity and layer thickness;
- It reduces friction between the drum shell and materials, which lessens wear and extends life.
Another essential element is the two-stage vibratory mechanism, equipped with adjustable eccentric weights. This enables compaction settings with amplitude of 0.024 inch or 0.047 inch; centrifugal force of 34kN or 72kN; and frequency of 40 Hz. This allows the operator to choose settings based on materials and depth.
The Ammann ARR 1575-2 features a unique oscillation mechanism. The mechanism works with the articulation joint to maximize stability on uneven terrain. Front and rear frames are able to move independently, which ensures consistent ground contact and improves compaction, stability and traction.
The trench roller can use optional Ammann Compaction Expert (ACE) technology to increase productivity during the compaction process. ACE is a relative compaction measuring device that provides continuous information about compaction levels and displays progress in real time. Then, the Ammann ServiceLink telematics system provides information on machine position, working hours and battery voltage. ServiceLink can manage single machines or entire fleets.
For more information, visit https://www.ammann.com/en-US/news/from-slim-to-slimmer/