Cylinder Bowl Jaw Crusher Wear Parts Crusher Jaw Plate Mn13Cr2 Manganese

Mn13Cr2 Manganese Steel Concave Liner Suitable For Multi and Single Cylinder Crusher

In the demanding world of mineral processing and large-scale aggregate production, the stationary bowl liner of your cone crusher endures continuous, high-energy impact. Sichuan Xinyitong International Trade Co., Ltd. presents our premium Mn13Cr2 High-Manganese Cone Crusher Bowl Liner (commonly referred to as the concave). This robust wear component is purpose-built to act as a durable barrier for your crushing equipment, enabling sustained operations, reduced unplanned downtime, and consistent, predictable output cycles.

Our bowl liners are produced from a carefully balanced metallurgical alloy featuring 13% manganese with a controlled 2% chromium addition. This proven formulation is widely adopted for high-reduction applications involving extremely abrasive feeds—including river gravel, hard basalt, dense granite, and heavy iron ore. Securely mounted in the upper frame of your cone crusher, our Mn13Cr2 bowl liner works in tandem with the moving mantle to define an efficient crushing chamber that delivers reliably shaped, market-ready product.

Superior Metallurgy and Wear Performance

The performance advantage of our Mn13Cr2 bowl liner lies in its exceptional work-hardening behavior. While conventional steel liners quickly succumb to micro-cutting and surface gouging when processing hard rock, our manganese-rich alloy responds dynamically to heavy compressive forces.

As abrasive feed impacts the liner surface within the chamber, the resulting pressure triggers a rapid transformation in the working layer, forming an exceptionally hardened exterior that resists ongoing friction and scratching. Beneath this toughened shell, the liner’s internal structure maintains excellent elasticity and deep-seated toughness. This ductile core effectively absorbs sudden shock loads without concentrating stress, significantly reducing the risk of cracking or brittle failure during operation. The inclusion of 2% chromium further enhances the stability of this work-hardening effect, preventing premature deformation or warping, and delivering a wear life that consistently exceeds standard manganese liners by more than 30%.

Precision Manufacturing Process at Our Foundry

At Sichuan Xinyitong International Trade Co., Ltd., we integrate advanced metallurgical science with rigorous production discipline. Our dedicated wear-parts foundry follows a strictly controlled six-stage casting protocol for every bowl liner:

1. Custom Pattern Design and Tooling: Superior service life starts with accurate geometry. Our engineering team reviews OEM specifications or custom client drawings, and our skilled pattern makers use precision equipment to produce molds that faithfully translate digital models into physical form.
2. High-Stability Sand Molding: Our casting floor employs a specialized heat-resistant sand system combined with resin binders to form robust mold cavities. This advanced molding material maintains its integrity under extreme pouring temperatures, ensuring consistent dimensional accuracy.
3. Controlled 40-Hour Slow Cooling: After molten manganese alloy is poured into the molds, we enforce a mandatory 40-hour gradual cooling period. This patient process avoids rapid thermal changes that could induce internal micro-stresses, promoting uniform crystallization throughout the casting and eliminating hidden weak points.
4. Proprietary Water Toughening Heat Treatment: This critical stage takes place in our automated heat-treatment facility. The cooled liner is heated to precisely controlled temperatures, then immediately quenched in water. This rapid immersion stabilizes the alloy into a fully austenitic structure, achieving the optimal balance between high-impact resistance and abrasion durability.
5. Precision Machining and Finishing: Following heat treatment, each liner undergoes accurate machining of all mounting and seating surfaces to guarantee proper fit and alignment within the crusher frame.
6. Rigorous Dimensional Inspection: Every finished bowl liner is measured against strict tolerances using calibrated gauges and fixtures, ensuring consistent cavity geometry and reliable installation.

Uncompromised Cavity Alignment and Reliability

An improperly seated bowl liner accelerates uneven wear, strains adjustment rings, and transmits harmful vibrations through the crusher mainframe. Our Mn13Cr2 bowl liners are manufactured to exacting dimensional standards, assuring secure, accurate placement into your crusher bowl. This precision fit promotes even wear distribution, stable crushing forces, and extended service intervals—keeping your production line running smoothly, shift after shift.