Wirtgen: German première of the Xtended F Series large milling machine

The new W 220 XFi delivers higher productivity with lower emissions during the rehabilitation of a county road.

The Wirtgen cold milling machine W 220 XFi with a John Deere engine deployed for the rehabilitation of the K 20 county road between Troisdorf and Lohmar showed that high productivity and sustainability can go hand-in-hand. Innovative technologies such as the 18-litre John Deere engine with a 2-speed powershift transmission and digital assistance systems such as Mill Assist and WPT Milling made it possible to realise the project efficiently within an extremely short time. The new display of CO₂ emissions per cubic metre of milled material provided valuable information about the ecological footprint of the current construction site and also enables conclusions to be drawn and translated into courses of action for future construction projects.

Cracks in the road surface made the rehabilitation of the busy county road absolutely essential. The section between Troisdorf and Lohmar is a part of the Mauspfad, a medieval highway and trade route, which leads for the most part through a forested area. The lead contractor relied on the new W 220 XFi for the rapid completion of the construction project. The new machine made it possible to complete the removal of the surface layer of the section of the road with a length of 2 km and a width of around 6.5 m within a period of only two days.

The new W 220 XFi is the ideal choice for a broad spectrum of applications ranging from surface layer rehabilitation and complete pavement removal to fine milling tasks. Its outstanding versatility, robustness and high productivity recommend it for a wide range of applications.

The 18-litre engine from John Deere is specially designed to meet the requirements of cold milling and features environmentally friendly engine technology. Its Dual-Shift powershift transmission delivers high torque under all load conditions that can also be used to achieve high milling performance in the low engine speed range. This reduces fuel consumption and simultaneously minimises CO₂ emissions. Lower noise emissions are also an outstanding feature of the new large milling machine, as Kevin Dick, machine operator at lead contractor Dr. Fink-Stauf, confirms: ‘I’m pretty impressed with how much quieter the machine has turned out to be.'

Already field-proven in other F-Series cold milling machines, the assistance systems Mill Assist and Wirtgen Group Performance Tracker Milling (WPT Milling) have now been expanded to include a display of the machine’s CO₂ emissions. Mill Assist keeps the machine operator informed about the CO₂ emissions during the ongoing milling operation. The automatically-generated WPT report can also include the CO₂ emissions of the entire project in addition to all important, project-relevant performance and consumption data. This not only provides valuable information about the ecological footprint of the current project site, but also enables sustainable optimisation of CO₂ emissions on future construction projects.