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2020 / 2021 Edition

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Conexpo-Con/Agg 2020: World premieres for Wirtgen large planers

Wirtgen W 250 Fi large milling machine

New Wirtgen F-Series W 220 Fi and W250Fi large milling machines to make global debut

WITH the successful launch of their new generation of large milling machines, Wirtgen say they have made lasting improvements to the process of milling in terms of performance and efficiency. The cold-milling machine specialists have now added the W 220 Fi and W 250 Fi flagship models to its intelligent F Series, and both machines will make their world premiere at Conexpo-Con/Agg 2020.

The new W 220 Fi and W 250 Fi large milling machines serve a wide range of applications at a maximum milling depth of 350mm (14in) – from surface course rehabilitation and fine milling work to complete removal of the surface.

Various drive concepts are available to ensure optimal milling performance. For example, the W 220 Fi is equipped with a two-speed Dual Shift powershift transmission, while the W 250 Fi has an Active Dual Power dual engine drive. With an engine output of 801hp (812PS)  for the W 220 Fi and 1,010hp (1,024PS)  for the W 250 Fi, respectively, the two flagship models offer plenty of power.

Like the successful F-Series models W 200 Fi, W 207 Fi and W 210 Fi, the W 220 Fi and W 250 Fi are also said to set new standards in terms of milling performance and machine efficiency. In the automatic mode, the Mill Assist standard assistance system provides an optimal balance between performance and operating costs. This not only improves milling performance, but also reduces diesel, water, and pick consumption, as well as CO2 emissions.

The machine operator can also pre-select a working strategy from ‘Cost-optimized’, ‘Performance-optimized’ or ‘Milling texture quality’. For example, it is possible to define the required milling texture quality on a scale of 1 (coarse) to 10 (very fine) in advance at the touch of a button.

Mill Assist also automatically controls the two-speed Dual Shift powershift transmission. Together with the diesel engine, the intelligent control of the two-speed powershift transmission extends both the upper and lower range of possible milling drum speeds. At lower speeds, fuel and pick wear can be significantly reduced. At higher speeds, high milling pattern quality is ensured, even in the case of high area performances.

With the Active Dual Power dual engine drive of the W 250 Fi, depending on the project situation and the pre-selected working strategy, Mill Assist automatically controls just one or both motors. In addition, the engines operate efficiently at optimally adapted speeds, significantly reducing costs for both diesel and cutting tools.

The Wirtgen Performance Tracker (WPT) calculates the precise surface milling performance, milling volume and consumption values for the machine. All-important performance and consumption data are displayed on the operator’s platform in real time and are also sent to the machine operator by e-mail in an automatically generated report immediately after completion of the milling work.

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