Paving operation in a confined space
During a project in Esterwegen, near Papenburg, Germany, the small paver offered a first taste of the extended range of applications it can now cover by paving a 750-metre-long and 2-metre-wide cycle path along a rural road. Since the adjacent trees left little space to work, outstanding manoeuvrability was required in addition to compact machine dimensions. This is one area in which the SP 15i stands out thanks to its intelligent steering and control system, among other features. Especially in bends, the tried-and-tested Ackermann steering ensures the machine can be handled with precision. The computer-assisted steering system varied the speed of the individual track units so that the SP 15i followed the specified references with pinpoint accuracy. In addition, the system adjusts the steering angle of each track unit fully automatically, depending on the paving radius and the machine geometry. This means that the machine can, in principle, be used to pave curved profiles with minimum radii of only 500 mm. In addition, the slipform paver can be easily manoeuvred with the help of additional steering modes – Crab and Coordinated. The SP 15i used in Papenburg was equipped with two steering and height sensors each that scanned the previously tensioned stringline on the left-hand working side, thus ensuring the process of levelling the 12-centimetre-high cycle path was extremely precise.