Rock Abrasion Index and Its Role in Crushing Line Design

The rock abrasion index quantifies how much a rock will abrade metal surfaces. It is a core input when selecting crusher type, rotor speed and wear material grade before a plant is built.

Highly abrasive rocks like quartzite demand slower rotor speeds and thicker alloy wear components. Low-abrasion limestone can run impact crushers with lower operating cost per ton.

SMP project teams start by testing core samples for abrasion index, compressive strength and moisture. These data shape equipment selection, power sizing and wear budget forecasts.

Designing the crushing circuit around measured rock properties avoids overspending on heavy equipment or underestimating wear expenses.

Keywords: rock abrasion index, crushing line design parameters, rock compressive strength test, ore abrasion test, crusher selection by rock property