Mantle Liners
Cone Crusher Mantle Liners Manufacturer & Supplier — Duma Machinery
Duma Machinery manufactures cone crusher mantle liners in Mn14, Mn18, Mn22, and TIC insert configurations for mining, aggregate, quarry, cement, and construction waste recycling operations worldwide. With over 4,000 mold patterns in stock, we supply precision-fit replacement mantles compatible with Metso, Sandvik, Terex, Telsmith, Symons, Trio, Kleemann, and other major crusher brands. Every liner is melted, cast, heat-treated, and CNC-machined in our own 42,000 m² foundry under ISO 9001:2015 quality management. Standard models ship in 7–10 days. OEM customization accepted.
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What Are Mantle Liners?
A mantle liner is the moving wear component installed on the cone head of a cone crusher.
It works together with the concave (bowl liner) to crush materials through compression and squeezing.
Core Functions of Mantle Liners:
- Provides the moving crushing surface
- Determines the crusher’s chamber profile
- Directly affects particle shape and reduction ratio
- Takes on high impact and high abrasion during crushing
Mantle liners are one of the most frequently replaced cone crusher wear parts, making quality and material selection extremely important for operational efficiency.
Why Choose Duma Cone Crusher Mantle Liners
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High-Manganese Steel Expertise — Mn14 to Mn22 and TIC
Duma manufactures mantle liners in four material grades — Mn14, Mn18, Mn22, and titanium carbide (TIC) insert configurations — covering the full spectrum from cost-effective standard-grade applications to extreme-abrasion mining environments. Each grade is produced from high-purity manganese steel raw materials and validated by metallographic inspection to ensure a clean, carbide-free austenitic microstructure — the foundation of effective work-hardening performance.
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Full In-House Foundry Control — No Outsourcing
Every Duma mantle liner is melted in large-capacity electric furnaces, cast, heat-treated in computerized controlled furnaces using water toughening (quenching), and CNC-machined entirely within our own 42,000 m² facility. No process steps are outsourced. This end-to-end in-house control provides complete batch traceability — customers can request material reports, dimensional inspection records, heat treatment curves, and metallographic reports for any order.
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4,000+ Mold Patterns — Precision Fit for All Major Brands
With over 4,000 mold patterns in stock, Duma can begin production of most standard mantle liner models without new tooling development. Compatible crusher brands include Metso (HP200, HP300, HP400, GP series), Sandvik (CH/CS series), Terex, Telsmith, Symons, Trio, Kleemann, and others. Strict dimensional inspection against OEM specifications ensures ready-to-install fit — no on-site grinding required.
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Custom Manufacturing Based on Working Conditions
For non-standard applications, Duma's engineering team designs custom mantle liners based on ore hardness and abrasiveness, feed size, crusher chamber type, and target output size. Reverse engineering from worn samples is supported. OEM production based on customer drawings is accepted.
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Longer Service Life — Lower Cost Per Ton
Duma mantle liners typically deliver 20–40% longer service life compared to standard-grade alternatives, as a result of controlled heat treatment, validated microstructure, and precision dimensional fit. For high-volume mining operations, this translates directly into reduced downtime frequency, lower labor replacement costs, and measurable reduction in cost per ton of material processed.
Material Options for Mantle Liners
Duma provides multiple material configurations to match different working conditions:
Mn14 (Standard Grade)
- Strong toughness
- Suitable for soft to medium-hard materials
- Cost-effective
Mn18
- Excellent work-hardening capability
- Ideal for granite, basalt, iron ore, and hard rock
- Standard material for most mining applications
Mn22 (Super High Manganese Steel)
- Best resistance to extremely abrasive conditions
- Recommended for gold mines, iron ore, and high-impact operations
TIC Inserts / Alloy Steel Mantle Liners
- Titanium carbide inserts (TIC) greatly increase lifespan
- 2–4× wear life of standard manganese
- Best choice for applications with high-impact or oversized feed
Material Grade Comparison
| Grade | Mn Content | Initial Hardness | Work-Hardened Hardness | Best For |
|---|---|---|---|---|
| Mn14 | ~14% | ~HB200 | ~HB450 | Soft to medium-hard materials, cost-sensitive applications |
| Mn18 | ~18% | ~HB200 | ~HB500 | Granite, basalt, iron ore, general mining & quarry |
| Mn22 | ~22% | ~HB200 | ~HB550+ | Gold mines, high-impact operations, extremely abrasive rock |
| TIC Insert | Mn base + TiC | Higher baseline | Up to 2–4× standard Mn life | Maximum wear life, oversized feed, high-impact conditions |
| Custom Alloy | Per specification | Per specification | Per specification | Customer-defined ore & operating conditions |
All grades comply with ASTM A128 / GB/T 13932. Material test reports available on request.
Applications Of Mantle Liners
Duma mantle liners are widely used in:
Mining (gold, copper, iron ore, manganese ore)
Aggregate production
Quarry operations
Cement plants
Construction waste recycling
Sand & gravel plants
Wherever cone crushers operate, mantle liners play a key role in material reduction and plant performance.
Factors That Affect Mantle Liner Wear Life
Mantle liner lifespan depends on several conditions:
Feed Hardness and Abrasiveness
Harder rocks accelerate mantle wear.
Feed Size
Oversized material causes impact stress and cracking.
Crusher Operating Parameters
Improper CSS adjustments or overfeeding reduce liner life.
Chamber Selection
Choosing the wrong cavity type increases wear unevenly.
Material Quality
High-quality manganese steel and proper heat treatment directly extend lifespan.
Duma engineers help customers optimize wear life by analyzing these factors and recommending the best mantle liner material and design.
How to Extend the Service Life of Mantle Liners
To maximize the lifespan of cone crusher mantle liners, Duma recommends:
Correct Material Selection
Match Mn14, Mn18, Mn22, or TIC inserts to ore characteristics.
Use Proper Chamber Profile
The right cavity type improves reduction and reduces pressure hotspots.
Maintain Correct CSS & Feeding
Stable and even feeding prevents localized wear.
Check Manganese Work-Hardening
Ensure the mantle reaches sufficient impact to harden properly.
Rotate the Mantle at the Right Time
Improves wear distribution and extends usable life.
Avoid Tramp Metal
Unbreakable objects damage liners and shorten lifespan.
Duma Mantle Liner Manufacturing Process
Each mantle liner goes through a strict production workflow to ensure high quality:
Raw Material Selection
high-purity manganese steel
Melting & Casting
large-capacity electric furnace
Heat Treatment
controlled quenching & tempering
CNC Machining
perfect size accuracy
Quality Inspection
Trial Assembly
Packing & Shipping
This fully controlled process ensures every Duma mantle liner meets or exceeds industry standards.
FAQ About Mantle Liners
Q1: Which material should I choose for mantle liners?
A: Mn14 → soft materials
Mn18 → general mining & quarries
Mn22 → extremely hard or abrasive rock
TIC inserts → maximum lifespan needed
Duma engineers can recommend the optimal choice after checking your working conditions.
Q2: Can Duma customize mantle liners for my cone crusher?
A: Yes. We support OEM customization based on crusher model, drawings, chamber profile, feed size, ore type, and specific design requirements.
Q3: Do you support mantle liners for major cone crusher brands?
A: Yes. We supply compatible mantle liners for Metso, Sandvik, Terex, Telsmith, Symons, Trio, Kleemann, and many more.
Q4: How long is the delivery time?
A:Usually 25–35 days depending on casting complexity. If wooden molds are required, add 10–15 days.
Q5: What causes mantle liners to wear faster than expected?
A:Common causes include:
·Oversized feed
·Wrong cavity selection
·Tramp metal
·Unstable feeding
·Incorrect CSS or speed
Q6: What is the difference between a mantle liner and a concave bowl liner?
A: The mantle liner is installed on the moving cone head (the inner, rotating crushing surface). The concave bowl liner is installed on the fixed outer frame (the stationary outer crushing surface). Together they form the crushing chamber. Both are wear parts that require periodic replacement — the mantle typically wears faster than the concave due to its moving contact with feed material.
Q7: How do I know when to replace my cone crusher mantle liner?
A: Duma recommends replacing or rotating the mantle when tooth profile wear reaches approximately 80% of original tooth height, when crushing efficiency measurably decreases, when product particle size distribution deteriorates, or when visible cracking appears on the liner surface. Waiting for complete failure significantly increases the risk of damage to the crusher head and frame.
Q8: What is the work-hardening effect in high-manganese steel mantle liners?
A: High-manganese steel (Hadfield steel) has a unique property: its surface hardness increases significantly under repeated impact loading during crushing. The initial hardness is approximately HB200, but under operational impact the surface rapidly work-hardens to HB500 or above, providing excellent wear resistance. This work-hardening only occurs effectively if the steel microstructure contains a pure austenite phase — which requires correct heat treatment during manufacturing. Duma validates austenite purity by metallographic inspection on every production batch.
Q9: Can Duma supply mantle liners if I don't have the original drawings?
A: Yes. Duma supports reverse engineering from worn samples or physical measurements. Send us your worn liner or the crusher model and serial number, and our engineering team will identify or reconstruct the correct geometry for production.
Q10: What quality documentation does Duma provide with mantle liner orders?
A: Standard documentation includes: material test certificate (chemical composition per ASTM A128 / GB/T 13932), hardness test report, metallographic inspection report confirming carbide-free austenitic microstructure, dimensional inspection report, heat treatment curve record, and packing list. UT (ultrasonic) and MT (magnetic particle) non-destructive testing reports are available on request.
Get a Free Quote for Cone Crusher Mantle Liners
Tell us your crusher model, current liner material, and ore type — our engineering team will recommend the optimal mantle liner grade and send you a competitive quote within 24 hours.