In Reclaimed Asphalt Pavement (RAP) recycling, traditional hammer crushers often produce excessive dust due to high-speed impact, slashing material value. The Double-Roll Crusher provides a controlled solution using “low-speed shearing and extrusion”:
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High Lump Rate & Low Fines: Operating at 30–80 RPM, the rollers peel the binder from the aggregate rather than smashing the stone. This achieves a lump rate (>5mm) of over 85%, while keeping fines (<0.075mm) below 10%, strictly meeting thermal recycling standards.
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Stable Grading & Price Premium: Regular particle shapes and smooth grading curves ensure consistent mix performance. Case studies show that switching to roll crushing can double the selling price of RAP, significantly boosting annual revenue.
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Specialized Configuration: “Wolf-teeth” rollers are available for hard asphalt, while scrapers handle high-moisture materials to prevent buildup.
Summary: Crushing is about “shaping and value preservation.” By minimizing powder at the source, the double-roll crusher transforms waste asphalt into a high-profit resource.
