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Volvo Dual Amplitude High Frequency Highway-Class Compactors
July 15th, 2008
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The Volvo Dual Amplitude High Frequency Highway-Class Compactors DD112HF and DD132HF have been engineered to follow pavers moving at faster lay-down speeds while providing the optimum drum impact spacing. This can eliminate the need for additional breakdown compactors on the job. A frequency of 4,200 vibrations per minute (70 hertz) for the DD112HF and 4,000 vibrations per minute (66.7 hertz) for the DD132HF gives these compactors the industry’s fastest rolling speeds with vibration. These machines also provide high amplitude drum performance for thicker lift applications, permitting greater flexibility without sacrificing productivity. Chamfered, radiused edges on the drum prevent drum marking and maintain smooth surfaces as the roller makes its passes. The DD112HF is powered by a Cummins four-cylinder engine; a Cummins six-cylinder engine is installed in the DD132HF.