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Mn18Cr2 Jaw Crusher Plate | High Manganese Steel Wear Parts | Hengtai
Crusher Spare Parts
Mn18Cr2 High Manganese Steel Jaw Crusher Plate
Premium Wear-Resistant Crusher Liner Plate | Water Toughened | 2-3x Service Life
Mn18Cr2
Alloy Grade
≥550 HBW
Work-Hardened Hardness
35-50%
Elongation Rate
ISO 9001
Certified Quality
Product Overview
The Mn18Cr2 high manganese steel jaw crusher plate is the core wear-resistant component in primary and secondary crushing equipment. Manufactured by Shandong Hengtai Intelligent Manufacturing through strict water toughening treatment at 1050-1100°C, this crusher liner plate delivers exceptional performance in abrasion resistance, impact strength, and structural stability. It has become the long-term designated mining wear parts supply for numerous international mining enterprises and aggregate producers.
Unlike ordinary high manganese steel, our Mn18Cr2 alloy contains precisely controlled 18% manganese and 2% chromium, enabling rapid work-hardening under impact loads. The surface hardness increases from an initial 230-255 HBW to over 550 HBW during operation, providing 2-3 times the wear resistance of standard crusher plates. This makes it the ideal choice for demanding quarry crusher parts applications where downtime is costly.
As a professional crusher plate manufacturer with over 15 years of experience, we provide OEM crusher parts customization for all major jaw crusher brands including Metso, Sandvik, Terex, and domestic Chinese models. Each plate undergoes rigorous quality inspection including spectral analysis, ultrasonic testing, and dimensional verification before shipment.
💡 Selection Guide: For abrasive materials with high silica content (quartzite, granite), we recommend Mn18Cr2 grade. For limestone and softer materials, Mn13Cr2 offers optimal cost-performance. Contact our engineers with your material analysis report for professional material selection recommendations.
Industry Application Solutions
Hard Rock Mining
Pain Point: Extreme abrasion from quartz-rich granite and basalt causes rapid plate wear, frequent shutdowns for replacement. Solution: Mn18Cr2 plates with optimized tooth profile and water toughening treatment. Result: Service life extended by 45%, maintenance intervals increased from 3 weeks to 6 weeks. Recommended: Mn18Cr2 grade with custom tooth profile for >250 MPa compressive strength materials.
Aggregate & Quarry Operations
Pain Point: High-volume continuous production requires reliable crusher spare parts with predictable wear patterns. Solution: OEM specification plates with consistent metallurgical quality and dimensional accuracy. Result: 99.2% equipment availability achieved, spare parts inventory reduced by 30%. Recommended: Standard Mn18Cr2 with regular monitoring program for wear pattern analysis.
Metal Ore Processing
Pain Point: Iron ore and copper ore processing involves both high impact and abrasive wear conditions. Solution: High chromium addition (2% Cr) provides enhanced corrosion resistance and hardenability. Result: Reduced metal contamination in downstream processing, improved concentrate grade. Recommended: Mn18Cr2 with additional surface hardening treatment for >6 month campaigns.
Application Fields Summary
Mining Operations: Gold, copper, iron ore, and other metal ore primary crushing circuits
Quarry & Aggregate: Granite, basalt, and limestone aggregate production for concrete and asphalt
Construction Recycling: Demolition concrete and asphalt recycling operations
Cement Industry: Limestone and clinker crushing in cement plants
Power Plant Desulfurization: Limestone grinding and preparation systems
Dry Mortar Production: Sand preparation for premixed mortar manufacturing
Working Principle & Material Behavior
1. Feeding & Initial Contact
Raw material enters the crushing chamber and contacts the fixed jaw plate. The Mn18Cr2 surface begins initial work hardening under light impact.
2. Compression Crushing
The movable jaw plate approaches the fixed plate, creating compression force. Material is crushed between the tooth profiles. Surface hardness increases progressively.
3. Work Hardening Activation
Under continuous impact (especially from hard materials), the austenitic structure transforms to martensite. Surface hardness reaches ≥550 HBW while maintaining core toughness.
4. Discharge & Cycle
Crushed material discharges through the outlet gap. The self-sharpening tooth profile maintains efficient crushing geometry throughout the wear cycle.
Key Advantage of Mn18Cr2: The high manganese content (18%) ensures complete austenitization during water toughening, while the 2% chromium addition improves hardenability and corrosion resistance. This unique metallurgical combination allows the plate to become harder and more wear-resistant as it operates, unlike fixed-hardness materials that wear uniformly.
Quality Assurance & Manufacturing Process
Manufacturing Standards: ISO 9001:2015 Quality Management System Certified. All production processes follow GB/T 5680 (High Manganese Steel Castings) and ASTM A128 standards.
Production Process Control
1. Precision Casting
Lost foam casting and sand casting processes with computer-controlled pouring temperatures. Spectral analysis verifies exact Mn18Cr2 composition before pouring.
2. Water Toughening
Solution treatment at 1050-1100°C followed by rapid water quenching. This critical step achieves the single-phase austenitic structure essential for work hardening.
3. CNC Machining
5-axis CNC machining centers ensure dimensional accuracy within ±0.5mm. Tooth profiles are machined to customer drawings or OEM specifications.
4. Quality Inspection
Ultrasonic testing (UT), magnetic particle inspection (MPI), hardness testing, and dimensional verification. Full material certification provided.
Certifications & Standards
ISO 9001:2015 - Quality Management System Certification
CE Marking - European conformity for machinery safety (obtained 2024)
GB/T 5680-2010 - Chinese National Standard for High Manganese Steel Castings
ASTM A128/A128M - Standard Specification for Steel Castings, Austenitic Manganese
Third-Party Inspection: SGS, BV, or CCIC inspection available upon request
Warranty & Service Commitment
Quality Guarantee: 12 months from date of delivery against manufacturing defects. Full replacement provided if material composition does not meet Mn18Cr2 specification.
Wear Life Commitment: Minimum wear life guarantee based on material hardness and application. Technical support provided if premature wear occurs.
Dimensional Accuracy: All plates guaranteed to fit specified crusher models without modification. Replacement provided if dimensional tolerances are exceeded.
Technical Support: Free consultation on installation, wear monitoring, and replacement scheduling. Video diagnostic support available.
Emergency Supply: Priority manufacturing for urgent orders. Typical lead time: 15-25 days; emergency orders available in 7-10 days.
Installation Guidance & After-Sales Support
Standard Supply Package
Matched set of fixed and movable jaw plates (as specified)
Installation bolts, nuts, and washers (grade 12.9 high-tensile steel)
Shim plates for gap adjustment
Installation and maintenance manual (English/Chinese/Spanish/Turkish)
Material certification and inspection report
Wooden crate packaging suitable for ocean freight
Installation Recommendations
Ensure crusher frame is level and foundation bolts are properly torqued before plate installation
Check all mating surfaces for cleanliness and absence of burrs
Apply anti-seize compound to bolt threads before installation
Torque bolts to manufacturer specification in star pattern sequence
Run crusher empty for 30 minutes before feeding material (break-in period)
Monitor plate temperature during first 8 hours of operation
Global Service Network
Technical Consultation: 24/7 WhatsApp and email support for urgent inquiries
On-Site Support: Hengtai technicians available for installation supervision and commissioning worldwide (service charges apply)
Training Programs: Operator and maintenance training at your site or our factory in Linyi, China
Wear Monitoring: Scheduled wear measurement programs to optimize replacement timing
Customer Distribution
Our crusher spare parts and wear components are trusted by mining operations and aggregate producers across: South America (Chile, Peru, Brazil), Middle East (Turkey, Saudi Arabia, UAE), Southeast Asia (Indonesia, Philippines, Vietnam), South Asia (India, Pakistan), and Africa (South Africa, Ghana, Nigeria).
Frequently Asked Questions (FAQ)
Q1: What is the function of the high manganese steel jaw crusher plate in crushing equipment?
The jaw crusher plate is the core wear-resistant component in crushing equipment, directly participating in material extrusion and crushing. As a critical crusher spare part, its performance directly affects crushing efficiency, equipment stability, and overall operating costs. The plate must withstand high impact loads and abrasive wear while maintaining structural integrity.
Q2: What are the advantages of Mn18Cr2 high manganese steel plate compared with ordinary plates?
Mn18Cr2 high manganese steel contains 18% manganese and 2% chromium. Under high-impact working conditions, it rapidly forms a high-hardness work-hardened layer on the surface. Its wear resistance is 2-3 times that of ordinary high manganese steel plates, making it ideal for mining wear parts and quarry crusher parts applications where reliability is critical.
Q3: Why does the jaw crusher plate become more wear-resistant with use?
During continuous impact and extrusion of materials, the plate surface undergoes work hardening. The hardness increases from the initial 230-255 HBW to ≥550 HBW, significantly enhancing wear resistance. This unique metallurgical property of austenitic manganese steel makes it the preferred material for heavy-duty crusher liner plates.
Q4: Is this plate prone to fracture or block falling during operation?
No. The elongation rate of Mn18Cr2 high manganese steel reaches 35%-50% with excellent toughness. It can withstand continuous impact of large, high-hardness materials, effectively avoiding chipping and block falling. This impact resistance is crucial for reliable mining crusher parts performance in demanding conditions.
Q5: What crushing working conditions is the Mn18Cr2 jaw crusher plate suitable for?
It is suitable for high-impact and high-load working conditions, especially for primary and secondary crushing operations in mines and production lines requiring long-term continuous operation. The plate operates stably at temperatures up to 350°C, making it versatile for various crushing equipment applications.
Q6: What materials can be crushed using Mn18Cr2 jaw crusher plates?
It is suitable for high-hardness materials such as granite, basalt, quartz stone and iron ore, as well as various ores and rocks such as limestone, copper ore and gold ore. These applications are common in mining wear parts and aggregate production environments worldwide.
Q7: Is the performance stable in high-temperature environments?
Yes. The plate can operate stably for long periods at working conditions up to 350°C, with minimal attenuation of hardness and toughness. This thermal stability makes it suitable for complex and harsh industrial environments including cement plants and steel slag processing facilities.
Q8: Does the tooth profile design affect crushing efficiency?
Yes. A scientifically designed tooth profile improves the crushing ratio, reduces ineffective friction, lowers energy consumption, improves finished product particle shape, and enhances overall equipment operation efficiency. Our optimized tooth profile design increases throughput by 15-20% compared to standard profiles.
Q9: Is customization available for different jaw crusher models?
Yes. We provide OEM crusher parts customization according to jaw crusher model, feed inlet size, and working condition requirements. We support all major brands including Metso, Sandvik, Terex, and Chinese domestic models. Custom specifications, tooth profiles, and weights are available with 15-25 day lead time.
Q10: What practical benefits can be gained after replacing with Mn18Cr2 high manganese steel plates?
Users can significantly extend service life, reduce shutdown replacement frequency, improve equipment operation rate, and lower comprehensive maintenance and production costs. For large-scale mining operations, this translates to 30-40% reduction in wear parts costs annually. Particularly suitable for large-scale mines and export projects requiring reliable crusher spare parts supply.
Related Equipment & Complete Crushing Solutions
Shandong Hengtai manufactures complete ranges of crushing equipment and crusher spare parts. Our jaw crusher plates integrate seamlessly with the following equipment for complete production line solutions:
Equipment Name
Function
Integration with Jaw Crusher Plates
Jaw Crusher (PE/PEX Series)
Primary crushing of hard rock and ores
Direct installation as fixed and movable plates
Cone Crusher
Secondary and tertiary crushing
Downstream processing after jaw crushing stage
Impact Crusher
Medium-hardness material shaping
Alternative crushing path for softer materials
Heavy Hammer Crusher
One-stage crushing for medium hardness
Complementary equipment for limestone applications
Vibrating Feeder (ZW/GZD Series)
Controlled material feeding
Ensures even feed distribution across plate width
Vibrating Screen
Particle size classification
Separates crushed product for recirculation if needed
Mobile Crushing Station
Portable crushing operations
Same Mn18Cr2 plates used in mobile jaw crusher units
Belt Conveyor
Material transport between stages
Complete system integration for automated operation
Complete Solutions: We provide turnkey crushing and screening plant design, equipment supply, installation supervision, and commissioning services. From single crusher liner plate supply to complete 500t/h aggregate production lines, our engineering team delivers optimized solutions for your specific material and capacity requirements.
As professional crusher plate manufacturer and OEM crusher parts supplier, we provide customized Mn18Cr2 jaw crusher plates tailored to your specific crusher model and material characteristics. Please contact us with your crusher model, feed size, material hardness, and required quantity for technical consultation and competitive quotation.
Tel/WhatsApp: +86 182 8866 4797 (Ni Bin) Email: ht6234nibin@gmail.com Address: Intelligent Equipment Manufacturing Industrial Park, High-Tech Zone, Linyi City, Shandong Province, China
