Custom Manufacturing Impact Jaw Crusher Wearing Parts Jaw Plate Material

Mn13Cr2 Jaw Crusher Wearing Parts Jaw Plate Material Custom Manufacturing 

Maximum Primary Crushing Tooth Protection

In the primary stages of mineral extraction and heavy rock reduction, the jaw crusher serves as the frontline defense against massive, unyielding run-of-mine feed. Sichuan Xinyitong International Trade Co., Ltd. delivers ultimate heavy-duty wear protection with our premium Mn13Cr2 High-Manganese Jaw Crusher Wearing Plate—covering both moving and fixed jaw profiles. Engineered explicitly to endure the extreme compressive stress and continuous abrasive gouging of primary crushing chambers, our tooth plates enable global operations to process hard materials with minimized downtime, stable machine performance, and predictable wear cycles.

Our jaw plates are cast from a highly refined metallurgical alloy combining 13% manganese with a controlled 2% chromium addition. This material specification is universally chosen for managing high-impact reduction of highly abrasive materials, including heavy iron ore, river pebbles, hard quartz, and tough granite. Securely positioned inside the jaw frame, our Mn13Cr2 tooth plates absorb massive directional forces, enabling your machinery to deliver optimized reduction ratios and consistent output.

Advanced Work-Hardening Against Severe Abrasion

The exceptional performance of our Mn13Cr2 jaw plate relies on its advanced work-hardening capabilities under high pressure. Unlike secondary crushers, a jaw crusher subjects its liners to a devastating combination of direct impact and high-friction sliding erosion as rocks force their way downward. Standard steel alternatives wear thin instantly under this sliding action.

However, our premium Mn13Cr2 formulation reacts dynamically to this mechanical strain. The moment massive boulders clash against the heavy tooth peaks, the molecular matrix of the outer surface transforms rapidly, creating an incredibly hard outer armor. This hardened exterior deflects micro-cutting and prevents the teeth from blunting prematurely. Meanwhile, beneath this hard outer crust, the internal metal core retains its exceptional ductility and structural toughness. This elastic core absorbs sudden, violent mechanical shocks from oversized boulders without cracking, fracturing, or failing mid-shift. The precise 2% chromium addition further strengthens the internal matrix, preventing the teeth from spreading, mushrooming, or undergoing plastic deformation under long-term compressive cycles.

Strict Casting Craftsmanship at Our Plant

At Sichuan Xinyitong International Trade Co., Ltd., we combine advanced metallurgy with meticulous manufacturing standards. Our heavy casting foundry utilizes a strictly monitored five-step production sequence to guarantee that every jaw plate achieves absolute structural perfection:

1. Custom Pattern Design and Digital Tooling: Dimensional accuracy is critical for avoiding frame damage. Our technical division designs exact production patterns using original equipment specifications or custom client drawings, translating blueprints into flawless physical tooling.
2. Thermally Stable Sand Molding: To handle the extreme pouring temperature of liquid manganese steel, our casting floor utilizes an advanced sand molding process. We combine heat-resistant sand with specialized binding resins to create a rigid casting cavity that locks the tooth profile into place during the high-volume pouring process.
3. 40-Hour Uniform Controlled Cooling: Once poured, the molten alloy is left undisturbed for a mandatory 40-hour slow-cooling cycle. Rushing this process causes severe internal thermal stresses and structural weak spots. Our 40-hour slow-cooling schedule ensures perfectly uniform crystallization throughout the entire thick-walled casting.
4. Proprietary Water Toughening Heat Treatment: This represents the critical metallurgical phase within our facility. The cooled jaw plates are loaded into an automated heat-treatment furnace to reach exact high-temperature levels, followed immediately by rapid water quenching. This water-toughening technique locks the alloy into a pure austenitic state, providing the ultimate balance of high impact resistance and severe abrasion deflection.
5. Aggressive Shot Blasting and Full NDT Inspection: In the final step of fabrication, the raw casting undergoes intense shot blasting to remove every trace of surface scale and remaining sand. This allows our Quality Assurance team to conduct comprehensive non-destructive testing (NDT)—including advanced ultrasonic flaw detection—guaranteeing that absolutely zero sub-surface defects or micro-fissures leave our facility.

Uncompromised Alignment and Machine Protection

A poorly fitting jaw plate results in loose seating, destructive frame vibrations, and uneven wear profiles. Our Mn13Cr2 jaw plates are cast with absolute dimensional fidelity, ensuring seamless seating against the moving pitman and stationary front frame. This precision fit promotes even wear distribution across the entire tooth profile, maximizes crushing efficiency.