Fine-tooth miller

The W 2200-12 milling machine from Wirtgen America Inc. can be used for fine-tooth milling, or “micromilling,” which provides paving contractors a more even substrate on which to place asphalt lifts, essential for winning smoothness bonuses. A pavement contractor can use the W 2200-12 with a fine-tooth drum for cold-milling of an existing worn surface in preparation for a super-smooth thin-lift HMA surfacing. With 5/16-in. bit spacing (or less), the definition of a fine-toothed drum, an owner or contractor can minimize the potential reflection of the peaks and valleys through the thin lift surface.