Milling and road recycling innovations from Wirtgen

First published in CONEXPO-CON/AGG Preview News - February 11, 2020

Higher productivity and versatility are claimed for Wirtgen’s new large milling machines

Wirtgen is expanding its range of cold milling solutions with the introduction of its new generation of large milling machines. The firm says that its high performance W 250 Fi and W 220 Fi models offer a combination of finish quality and productivity. Reliability, durability and lower maintenance needs are also features of these machines. Versatility has been increased over earlier generation units too, with customers able to select a wider range of performance operations and adapt the machines quickly to suit varying working conditions.

The new W 220 Fi and W 250 Fi milling machines can be used for a wide range of applications, with maximum milling depths of 350mm, while they can handle surface course rehabilitation and fine milling work. Various drive systems are available to ensure maximum milling performance. 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 power of 597kW for the W 220 Fi and 753 kW for the W 250 Fi, the two flagship models offer plenty of power.

The operator can preselect working modes: Cost-optimised; Performance-optimised; Milling texture quality. Mill Assist automatically controls the two-speed Dual Shift powershift transmission. In combination with the diesel engine, the milling drum speeds can be increased or decreased, suiting a wide range of applications. At lower speeds, fuel and pick wear can be reduced, while at higher speeds, high milling pattern quality is ensured.

The Wirtgen Performance Tracker (WPT) calculates surface milling performance, milling volume, and consumption values. Important performance and consumption data is displayed in real time and are also emailed to the operator at the end of a job.