SP 124(i) 12-metre paving width, 4 swing arms, new dowel bar inserter
The largest slipform paver on show at this year’s Bauma is the SP 124(i). The 4-track paver can be configured for paving at a working width of 12 metres and fits seamlessly into the fleet-wide operating concept of slipform pavers from WIRTGEN. The machine is fitted with the latest generation of the integrated dowel bar inserter. The dowel bars are extracted from the magazine by a chain feed system with an endless chain and automatically transported to the insertion location. ‘Smart’ cylinders with displacement sensors precisely position the dowel bar inserter at the desired locations. The high degree of automation reduces the amount of manual work required, increases process reliability and, ultimately, the cost-effectiveness of the process.
AutoPilot 2.0: stringless control for concrete paving
Developed in-house by Wirtgen, AutoPilot 2.0 is a control system for stringless paving that serves as an alternative to the conventional method of mechanically scanning a stringline. The system, which precisely controls both the height adjustment and steering of the machine, is available for all offset pavers and placer/spreaders. A GNSS signal and, depending on the configuration, various local sensors (e.g. an ultrasonic sensor on the machine), serve as a reference. The time and effort otherwise required for setting up and removing the stringline is eliminated. It also enables fast and precise paving of tight radii and complex geometries. The system is conveniently operable from a tablet PC, which also supports the generation and editing of terrain models. Wirtgen AutoPilot 2.0 is the only system that offers machine control and stringless control for concrete paving in one.