Smooth compaction

Compaction Products
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Ingersoll Rand, Davidson, N.C., recently introduced the DD-22 and DD-24 double-drum asphalt compactors for light- and medium-only applications. Both compactors feature a number of innovations that enhance overall performance. The DD-22 has a drum width of 39 in. and an operating weight of 5,400 lb, while the DD-24 has a drum width of 47 in. and an operating weight of 5,725 lb. The front and rear drums on both compactors protrude beyond the frame, making it easier to compact around obstructions without the chassis getting in the way and giving operators a clear view of drum edges.

The DD-22 and DD-24 double-drum units are built to produce the right combination of amplitude, centrifugal force and frequency to maximize daily productivity. Both compactors provide the choice of automatic or manual vibration and can operate in three modes: statically, front-drum vibration only or both drums vibrating. Two vibrating frequencies—3,300 and 4,020 vpm—allow the DD-22 and DD-24 to produce smooth, dense mats with a record number of passes.

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