SP 15i is compatible with common 3D control systems
As is often the norm in many new-build projects, a 3D digital terrain model was available at the Mobile job site. The great advantage of the SP 15i: thanks to its certified standard interface, the concrete paver can also be equipped with 3D systems of other leading suppliers alongside AutoPilot, Wirtgen’s 3D control system. The data are transmitted to the machine via a 3D interface, and various systems such as the RTK GNSS receiver or automatic total stations are employed during paving. The sensors mounted on the machine permit precise measurement while the machine is in operation. These systems constantly check that the specified and actual values of the paving parameters correspond. If no 3D digital terrain model is available for a project, users can also enlist the aid of Wirtgen’s AutoPilot Field Rover and create a new digital data model directly on the job site.
Dispensing with string lines also simplifies material supply
When working in the small town of Mobile, the paving team of Ammons & Blackmon Construction LLC had to switch between different work sections several times in every work shift. It was therefore obvious that dispensing with time-consuming surveying, tensioning and checking of string lines would greatly increase the profitability of the project. The supply of material is a much simpler affair, too, as lorries can quickly reach the SP 15i and drivers do not have to be on the lookout for tensioned string lines.
An additional feature of the slipform paver itself also supported particularly speedy progress – the trimmer. This unit levels the base to ensure optimum paving. The trimmer drum design is based on Wirtgen milling technology, one of the company’s core competencies. The telescoping trimmer with its helically positioned point-attack cutting tools guarantees uniform profile paving – in a single pass.