Liner/Mantle: Weight Range 500-10,000 kg, Thickness 50-300 mm

Component Specifications

Definition

Liner/Mantle refers to the replaceable wear-resistant components installed in the crushing chamber of cone crushers. The mantle is the moving component attached to the main shaft, while the liner (concave) is the stationary component fixed to the crushing chamber. Together, they form the crushing cavity where rocks are compressed and broken through gyratory motion. These components are critical for maintaining crusher efficiency, product size distribution, and protecting the crusher's structural elements from wear.

Working Principle

The mantle gyrates eccentrically within the stationary liner, creating a progressively narrowing crushing cavity. As material enters the top, it's compressed between the mantle and liner until it reaches the desired size and exits through the bottom discharge opening. The crushing action combines compression, impact, and attrition forces.

Materials

High manganese steel (Mn14, Mn18, Mn22), alloy steel with chromium and molybdenum, martensitic steel, or composite materials with ceramic inserts. Typical hardness: 300-500 HB. Material selection depends on abrasiveness, compressive strength of feed material, and desired service life.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Thickness	50-300 mm
Service Life	200-2,000 operating hours depending on application
Weight Range	500-10,000 kg
Profile Types	Standard, coarse, medium, fine, extra-fine
Mounting System	Bowl liner threads, mantle nut retention, backing material

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 21873-1, DIN 2310, ASTM A128

Parent Products

This component is used in the following industrial products

Crushing Chamber

The enclosed space within a primary crusher where raw materials are initially reduced in size through compression and impact.

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Engineering Analysis

Risks & Mitigation

Premature wear from improper material selection
Fatigue cracking from cyclic loading
Improper installation causing imbalance
Material buildup reducing crushing capacity
Corrosion in wet processing environments

FMEA Triads

Trigger: Abrasive feed material exceeding design specifications
Failure: Accelerated wear reducing liner life by 50% or more
Mitigation: Implement feed material analysis, use premium alloy materials, optimize crusher settings for specific material

Trigger: Improper tightening of mantle nut
Failure: Mantle loosening during operation causing catastrophic damage
Mitigation: Follow manufacturer torque specifications, use proper locking mechanisms, implement preventive maintenance checks

Trigger: Thermal cycling and impact fatigue
Failure: Crack propagation leading to liner fracture
Mitigation: Use materials with good impact toughness, avoid thermal shock conditions, implement regular visual inspections

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerance ±1.5mm on critical surfaces, profile accuracy within 0.5% of design specifications

Test Method

Ultrasonic thickness testing, hardness testing (Brinell/Rockwell), metallurgical analysis, dimensional verification against CAD models

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Liner/Mantle

Manufacturer profiles associated with Liner/Mantle.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

How often should liners and mantles be replaced?

Replacement frequency depends on material abrasiveness, throughput, and crusher settings. Typically every 200-1,000 hours. Monitor wear patterns and product size changes to determine optimal replacement timing.

What are the signs of worn liners?

Decreased production capacity, increased power consumption, oversized product particles, metal-to-metal contact noises, visible wear exceeding 60-70% of original thickness, and abnormal vibration patterns.

Can liners from different manufacturers be mixed?

Not recommended. Different manufacturers use proprietary profiles and metallurgy. Mixing can cause improper fit, reduced efficiency, accelerated wear, and potential damage to crusher components.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Liner/Mantle