Flexible Cutter System Light (FCS L)

Contractors and government road agencies alike are finding that cold milling with fine-texture, fine-toothed drums provides the best foundation for the growing number of thin-lift hot mix (HMA) asphalt overlays.

Smoothness bonuses have become a fact of life for today’s contractors, and the best way to optimize smoothness is to mill with a full- or half-lane Wirtgen cold mill machine using a closely spaced (5/16-in.) fine-toothed milling drum, moving forward at a moderate speed (50-60 fpm). A conventional drum at slower than usual speeds — for example, 25 to 30 feet per minute — will provide much the same result, but most milling contractors just won’t go that slow. If these contractors use a properly designed fine milling drum, they can produce a nice, fine smooth-milled surface, but do it at the higher ground speed they need to be profitable.

Another benefit is that fine-tooth drums exhibit less wear per-tooth than conventional drums. And they have the added application of use instead of diamond grinders for smoothing or adding texture to rough or polished concrete pavements or bridge decks.

The new Flexible Cutter System Light (FCS L) for the W 1900 and W 2000 enables quick change of a conventional to fine-texture drum in a matter of hours.

We at Wirtgen America have proven “hands down” that if you do “mill and fill” thin single lift overlays, you should be using a fine texture drum for superior pavement smoothness and density results. Please let us show you how.

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