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ATF Crusher Parts
Peças de Desgaste para Mineração e Processamento Mineral | ATF

Soluções por Indústria

Peças de Desgaste para Mineração e Processamento Mineral | ATF

Componentes resistentes ao desgaste para mineração. Placas de manganês, revestimentos cônico e moinho para minérios abrasivos e operação contínua.

Mineração Agregados Cimento Reciclagem
Soluções industriais

Wear Parts for Mining Operations

Mining operations subject crusher and mill components to conditions no other industry matches. Continuous operation across multiple shifts, highly abrasive silica-rich ores, extreme impact forces from oversized feed, and remote locations where unplanned downtime carries severe production and logistics consequences. Whether processing copper, gold, iron ore, lithium, or industrial minerals, wear parts must deliver consistent performance under sustained loading — and predictable wear patterns that allow maintenance to be planned rather than reactive.

Material selection in mining applications is driven by ore characteristics. High-silica ores (quartzite, taconite, some copper porphyries) cause accelerated abrasive wear that shortens service intervals. Impact loading from oversized feed and tramp metal requires toughness to prevent catastrophic failure. The combination of abrasion and impact determines whether standard manganese grades are sufficient or whether premium alloys and composite inserts are justified by the extended service intervals they deliver.

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Open-pit mining operation showing haul truck dumping run-of-mine ore into primary gyratory crusher

Primary Crushing in Mining

Run-of-mine ore reduction from blast fragmentation to conveyor-transportable size

Desafios da indústria

Why Mining Operations Demand Different Wear Parts

The same crusher model requires fundamentally different materials depending on whether it processes limestone aggregate or hard-rock mining ore. Mining conditions are defined by four factors that distinguish them from every other crushing application.

Ore Abrasiveness

High-silica ores wear components significantly faster than sedimentary rock. Quartzite (Mohs 7), taconite, and silica-rich copper ores cause abrasive wear rates that standard Mn13 grades cannot sustain economically. Material selection must account for the abrasive mineral content — not just the bulk rock hardness.

Continuous Operation

Mining crushers and mills typically run 8,000+ hours per year across multiple shifts. This sustained loading leaves no margin for premature wear-out. Components must deliver predictable wear patterns that align with scheduled maintenance windows — typically planned weeks or months in advance at remote sites.

Impact Loading

Primary crushers receive run-of-mine feed with oversized material, blast-induced fines, and occasional tramp metal (drill steel, ground engaging tools, lost excavator teeth). Wear parts must resist both abrasive wear and impact events without catastrophic failure.

Remote Logistics

Many mining operations are located in remote areas where replacement parts require weeks of lead time. Wear life predictability is not just a cost factor — it is an operational planning requirement. Premature failure at a remote site cascades into lost production, expedited freight, and unscheduled maintenance labor.

Seleção de materiais

Material Selection by Crushing Stage

Mining comminution circuits typically include primary crushing, secondary and tertiary crushing, and grinding. Each stage subjects wear parts to different combinations of impact and abrasion. Material grade selection follows the stage requirements — not a single "mining grade" applied everywhere.

Primary crushing
Equipamento
Gyratory, large jaw (C140+)
Peças de desgaste
Mantles, concaves, jaw plates
Material
Mn22Cr2, Mn22Cr2 + TiC
Por quê
Maximum toughness for oversized feed and tramp metal
Secondary crushing
Equipamento
Cone (HP500, CH870, Symons 7')
Peças de desgaste
Mantles, concaves
Material
Mn18Cr2, Mn22Cr2
Por quê
Balance of abrasion resistance and toughness
Tertiary crushing
Equipamento
Cone (HP300, CH440), VSI
Peças de desgaste
Mantles, concaves, rotor tips
Material
Mn18Cr2, high-chrome, ceramic MMC
Por quê
Abrasion resistance priority as impact energy decreases
Grinding
Equipamento
SAG mill, ball mill
Peças de desgaste
Shell liners, lifter bars
Material
High-chrome white iron, Mn steel
Por quê
Sustained abrasion at lower impact than crushing stages
Slurry transport
Equipamento
Centrifugal pumps
Peças de desgaste
Impellers, volutes, throatbush
Material
High-chrome, natural rubber
Por quê
Erosion-corrosion from abrasive slurry

Note: Material recommendations shown are typical starting points for hard-rock mining applications. Actual selection depends on ore mineralogy, feed characteristics, and operational priorities. Contact ATF for application-specific recommendations based on your ore type and circuit configuration.

Guia de equipamentos

Mining Crushing and Grinding Equipment

Mining operations use equipment across the full comminution circuit — from primary crushers receiving run-of-mine ore to grinding mills producing flotation or leach feed. ATF manufactures wear components for each stage.

Gyratory & Large Jaw Crushers

Gyratory & Large Jaw Crushers

Primary ore reduction from blast fragmentation. Gyratory crushers (FLSmidth, Metso, ThyssenKrupp) for high-tonnage surface mines. Large jaw crushers (C140, C160, C200) for underground and medium-scale surface operations.

→ View Jaw Crusher Parts
Cone Crushers

Cone Crushers

Secondary and tertiary size reduction. HP, GP, CH, CS, Symons, and Omnicone series for controlled product sizing before grinding circuits.

→ View Cone Crusher Parts
Impact Crushers

Impact Crushers

Selective applications where product shape or circuit flexibility is required. HSI crushers for softer ore and limestone pre-crushing.

→ View Impact Crusher Parts

SAG & Ball Mills

Grinding for mineral liberation. SAG mills for primary grinding, ball mills for secondary and regrind circuits. Shell liners, end liners, lifter bars, and discharge grates.

→ View SAG Mill Parts → View Ball Mill Parts

Slurry Pumps

Abrasive slurry transport throughout the processing plant. Impellers, volutes, and throatbush components in high-chrome and rubber compounds.

→ View Slurry Pump Parts

Processing abrasive ore?

Send your ore type, crusher model, and current wear life — ATF recommends materials matched to your specific mining application.

E-mail: info@atfcs.com

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Padrões de desgaste

Wear Patterns Typical in Mining Applications

Understanding wear patterns helps identify whether current material selection is appropriate or whether an upgrade is justified. These patterns are common across mining operations — if your operation shows similar symptoms, material or operational adjustments may extend service intervals.

Accelerated Tooth / Edge Rounding

Jaw plates and cone liner feed zones lose geometry faster than the body wears. Typical in high-silica ores where abrasive wear dominates. Indicates material abrasion resistance is insufficient — consider upgrading manganese grade or adding TiC inserts at wear surfaces.

Uneven Mantle / Concave Wear

One side of a cone crusher chamber wears significantly faster than the other. Usually caused by uneven feed distribution, not material deficiency. Check feed distribution system, spider arm condition, and feed chute alignment before upgrading materials.

Mill Liner Peening and Packing

Grinding media and fine material pack between lifter bars, reducing grinding efficiency and accelerating liner wear. Common in SAG mills processing clay-rich or moisture-bearing ores. Indicates liner profile or lifter bar spacing may need adjustment.

Premature Pump Component Erosion

Slurry pump impellers and volutes wearing faster than expected. Often caused by running above design solids concentration, oversized particles bypassing hydrocyclone classification, or corrosive slurry chemistry. Check circuit classification efficiency before attributing to material quality.

Quando substituir

When Is a Material Upgrade Justified in Mining?

Higher-grade materials cost more per component but deliver longer service intervals. Whether the upgrade is justified depends on the total cost of a change-out — not just the part price. Mining operations where change-outs require crane mobilization, production shutdown, and multi-day maintenance schedules see the largest return from material upgrades.

Mn13 jaw plates wearing too fast in hard ore
Considerar substituição quando
Service intervals are less than half the expected duration
Caminho de substituição
Mn13 → Mn18 or Mn22
Standard Mn18 cone liners in abrasive ore
Considerar substituição quando
Edge rounding limits life before body wears out
Caminho de substituição
Mn18 → Mn18+TiC or Mn22
High-chrome mill liners cracking under impact
Considerar substituição quando
Fracture events causing unplanned shutdowns
Caminho de substituição
High-chrome → manganese steel
Standard blow bars in abrasive limestone pre-crushing
Considerar substituição quando
Bars wearing to minimum before scheduled shutdown
Caminho de substituição
Martensitic → high-chrome or ceramic MMC
Any component where change-out cost exceeds part cost
Considerar substituição quando
Part life extension reduces annual change-outs by one or more cycles
Caminho de substituição
Evaluate next-grade material economics

Note: Material upgrades are not always the answer. Many wear issues in mining are caused by feed distribution, crusher settings, or operational factors. ATF evaluates the operational context before recommending material changes.

Perguntas frequentes

Mining Wear Parts — Common Questions

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Why does mining ore wear crusher parts faster than quarry rock?
Abrasion rate is driven primarily by the abrasive mineral content in the feed — specifically the proportion of hard silicate minerals like quartz. Most quarry limestone has relatively low silica content (Mohs 3-4). Mining ores — particularly copper porphyries, iron ore, and gold-bearing quartz — contain high proportions of silica (Mohs 7) that accelerate surface wear. The same crusher model processing granite aggregate versus taconite ore will experience fundamentally different wear rates and require different material grades.
What manganese grade is typically used for hard-rock mining?
Most hard-rock mining applications start with Mn18Cr2 for secondary and tertiary cone crushers, and Mn22Cr2 for primary jaw plates and gyratory components where impact loading is highest. The choice between Mn18 and Mn22 depends on the balance of abrasion and impact in the specific application. Operations processing extremely abrasive ore with controlled feed may benefit from TiC composite inserts in high-wear zones.
How do I plan replacement parts for a remote mining site?
Predictable wear patterns are essential for remote operations. Track wear measurements at each shutdown, record operating hours, and build a consumption forecast. For critical components (primary crusher mantles, SAG mill liners), maintain buffer stock on site. ATF provides dimensional drawings and manufacturing lead times to support shutdown planning — contact us early for large or non-standard components that require extended production schedules.
Can aftermarket parts match OEM performance in mining applications?
Performance depends on material quality and dimensional accuracy — not brand name. ATF manufactures to the same international steel standards (ASTM, GB/T) and dimensional tolerances as OEM components. We provide full material certification including chemical composition, hardness testing, and heat treatment records. Many mining operations trial aftermarket parts on a single unit before broader adoption.
What causes cone crusher liners to crack in mining applications?
Liner cracking in mining is typically caused by excessive tramp metal events, running below minimum CSS (creating abnormal stress concentration), or thermal cycling from frequent start-stop operation. Material quality can contribute — insufficient manganese content or improper heat treatment reduces impact toughness. If cracking occurs, evaluate the operational factors before changing material grade.
How does SAG mill liner selection affect grinding efficiency?
Liner profile determines charge trajectory, which directly affects grinding efficiency and power draw. Lifter bar height, face angle, and spacing interact with mill speed and ball charge to produce the grinding action. Worn liners reduce charge trajectory, decreasing impact grinding and increasing less-efficient abrasion grinding. Monitoring liner wear and replacing at the optimal point — before grinding efficiency degrades significantly — maximizes mill throughput per operating hour.

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Tell us your ore type, equipment, and current wear challenges. ATF recommends the right materials for your mining application.

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