Crushers are indispensable core equipment in mining, metallurgy, quarrying, aggregate production and construction industries. The service life, daily production efficiency, downtime frequency and overall operation cost of crushing equipment are closely determined by the performance and quality of crusher wear parts.
Different working positions bear varying loads, friction, impact and abrasion, which require matched professional material grades. Selecting the correct type and material of wear parts not only extends equipment service life, but also reduces frequent replacement and maintenance costs. This article systematically classifies mainstream crusher wear parts and their standard matching materials.
Bronze Wear Parts
Bronze bushings and bronze components are the key moving and load-bearing parts inside cone crushers and gyratory crushers. With excellent self-lubricating performance, high wear resistance and strong heavy-load stability, they support eccentric rotation, main shaft operation and axial thrust bearing under harsh working conditions.
Main Shaft Bushing & Eccentric Bushing
Applied for main shaft and eccentric assembly rotation; adopt ZCuPb20Sn5 high-lead tin bronze for outstanding load resistance and anti-friction performance.
Spherical Bearing Bushing & Thrust Plate
Bear axial thrust and spherical friction; adopt ZCuSn10Pb10 tin bronze with balanced mechanical strength and wear resistance.
Frame Bushing
Used for main frame positioning and auxiliary rotation; adopt ZCuAl10Fe3 aluminum bronze, featuring high hardness and strong pressure resistance.
High-Manganese & High-Chromium Alloy Wear Parts
These parts directly contact raw stones and bear continuous strong impact, extrusion and abrasive wear. They are the most frequently replaced vulnerable parts, requiring extreme impact toughness and wear resistance.
Mantle & Concave (Cone Crusher)
Adopt ZGMn13Cr2 / ZGMn18Cr2 high-manganese steel, excellent anti-impact and anti-crushing performance for long-term stone squeezing wear.
Jaw Plate (Jaw Crusher)
Fixed jaw plate and movable jaw plate use ZGMn13Cr2 / ZGMn18Cr2 high-manganese steel, suitable for coarse crushing high-hardness ore and rock.
Blow Bar & Impact Liner (Impact Crusher)
Key impact wear parts adopt KmTBCr26 high-chromium alloy, with ultra-high wear resistance to resist repeated material striking.
Liner Plate (Gyratory Crusher)
Inner protective liner adopts ZGMn13Cr2 / ZGMn18Cr2 high-manganese steel, adapting to heavy-duty continuous crushing environment.
Summary
Crusher bronze wear parts mainly guarantee the stable operation of transmission and rotating structures, relying on self-lubrication and load-bearing advantages to reduce mechanical friction. High-manganese steel and high-chromium alloy wear parts undertake direct material impact and abrasive wear.
Reasonable selection of matched wear part materials according to equipment type and working condition can effectively lower unplanned downtime, extend component service life and greatly reduce long-term operation and maintenance costs.
