Medium-hard rocks such as limestone, dolomite and bluestone are the most common quarry raw materials. Although their hardness is moderate, long-term high-intensity crushing will still cause continuous wear of equipment vulnerable parts, increasing daily maintenance costs.

Traditional single-stage impact crushing process has large material impact force and fast part wear, with high long-term operation cost. Process optimization is the key to reducing abrasion loss of medium-hard rock crushing lines.

SMP optimized two-stage crushing process matches jaw coarse crushing + impact fine crushing mode. The pre-screening system removes fine materials in advance to reduce ineffective wear, and the optimized crushing cavity reduces material impact friction force.

This low-abrasion process configuration effectively extends the service life of wearing parts, reduces replacement frequency and maintenance downtime, and realizes low-consumption and high-efficiency continuous production of medium-hard rock aggregates.

Keywords: medium-hard rock crushing, low abrasion crushing process, reduce quarry wear loss, limestone crushing optimization, low-consumption aggregate production