9. How to Evaluate Jaw Crusher Plate Suppliers in China

Selecting the right supplier is just as important as selecting the right material and tooth profile. China has hundreds of wear parts manufacturers, but their capabilities vary greatly. Here are key evaluation standards for overseas buyers:

9.1 Check Manufacturing Capabilities

A reliable supplier should have:

• Large steel casting workshop

• Independent heat treatment furnace

• CNC machining equipment

• Spectrometer for chemical analysis

• Hardness and impact test machines

• OEM customization capabilities

Suppliers without these facilities typically outsource production, which results in inconsistent quality.

9.2 Technical Expertise

Choose suppliers who can:

• Recommend suitable manganese grades

• Suggest optimized tooth profiles

• Offer chamber design improvements

• Provide drawings and 3D scanning

• Explain heat treatment details

High-level technical support is a strong indicator of reliability.

9.3 Export Experience

Look for suppliers who:

• Have 5+ years of export experience

• Understand INCOTERMS

• Provide packing lists, CO, MSDS

• Have stable supply to Europe, US, South America, Africa, and Southeast Asia

Experienced exporters handle documents, packaging, palletizing, and customs smoothly.

9.4 Quality Control System

A manufacturer focusing on wear parts should offer:

• Raw material inspection

• Spectrometer testing

• Hardness testing (before and after heat treatment)

• Dimensional checks

• Sampling inspection for batches

• Final inspection reports

9.5 Customer Feedback and Case Studies

Ask for:

• Testimonials

• Past orders to similar industries

• References or site photos

Positive customer feedback is often the best indicator of long-term quality.

10. Avoiding Low-Quality Jaw Crusher Plates

Low-quality plates may appear cheap, but they increase maintenance downtime and drastically raise the cost per ton of crushed material.

10.1 Red Flags to Watch For

• Prices much lower than market average

• No material certificate (Mill Cert)

• Unknown casting sources

• No heat treatment or incorrect heat treatment curve

• Poor machining tolerance

• Thin tooth tips

• Excessive porosity or casting defects

10.2 Hidden Costs of Poor-Quality Plates

• 50–80% shorter lifespan

• Frequent shutdowns

• Irregular output size

• Higher fuel and power consumption

• Damage to crusher bearings and shafts

• Safety risks

Always prioritize long-term cost over short-term savings.

11. Purchase Process When Sourcing from China

To make procurement efficient, follow this recommended process:

11.1 Step 1 – Send RFQ with Detailed Requirements

Include:

• Crusher brand and model

• Plate type and tooth profile

• Material grade

• Weight requirement

• Tonnage of production and working conditions

• Quantities and expected annual usage

• Drawing or sample (if available)

11.2 Step 2 – Supplier Technical Confirmation

Supplier should provide:

• Detailed material composition

• Recommended profile

• Hardness range

• Expected lifespan

• Product weight tolerance

• Manufacturing time

11.3 Step 3 – Quotation and Payment Terms

Price varies by:

• Material (Mn13, Mn18, Mn22)

• Weight

• Design complexity

• Order quantity

Payment terms typically include:

• T/T 30% deposit + 70% balance before shipment

• Alibaba Trade Assurance

• L/C at sight (for large orders)

11.4 Step 4 – Production and Quality Inspection

During production, check:

• Raw material batch

• Heat treatment curve

• Hardness test

• Dimensions and symmetry

• Surface quality

11.5 Step 5 – Packaging and Delivery

Proper packaging includes:

• Wooden pallet

• Steel band reinforcement

• Anti-rust coating

• Protective cardboard layers

• Tight wrapping

Shipping options:

• FOB China port (most common)

• CIF for convenience

• EXW for buyers with Chinese forwarders

12. Inspection & Testing Requirements

Before shipment, request the following:

12.1 Chemical Composition Certificate

Shows manganese (Mn), chromium (Cr), silicon (Si), carbon (C), etc.
Must meet ASTM, DIN, or ISO standards.

12.2 Hardness Testing

Measured in HB or HRC.
Jaw plates should fall within the recommended range, depending on grade.

12.3 Dimensional Inspection

Check:

• Mounting hole alignment

• Plate thickness

• Tooth height

• Chamber compatibility

12.4 Visual Defect Inspection

Must be free from:

• Shrinkage cavities

• Cracks

• Air holes

• Slag inclusion

12.5 Third-Party Testing

For large orders, consider using:

• SGS

• BV

• Intertek

These reports reduce supplier risk significantly.

13. Cost Analysis: Long-Term Value vs. Initial Price

High-quality manganese plates significantly reduce:

• Maintenance cost

• Replacement frequency

• Labor cost

• Downtime losses

13.1 Cost-per-Ton Calculation

A common evaluation method:

Cost per ton = Total jaw plate cost / Total tons of stone crushed

Well-designed Mn18/Mn22 plates typically deliver the lowest cost per ton.

14. Maintenance Tips to Maximize Jaw Plate Lifespan

14.1 Rotate Plates Regularly

Fixed and movable plates wear differently. Rotating them increases total lifespan.

14.2 Maintain Proper CSS Settings

Avoid overly small CSS—this increases pressure and accelerates wear.

14.3 Ensure Even Feeding

Use vibrating feeders to ensure even distribution and avoid localized wear.

14.4 Monitor Chamber Pressure and Power Load

Sudden spikes indicate:

• Iron contamination

• Oversized stones

• Improper feed size

14.5 Replace Plates Before They Fail Completely

Overused plates may:

• Damage the crusher

• Increase output size inconsistency

• Raise power consumption

15. Case Studies: Real Improvements from High-Quality Jaw Plates

15.1 Granite Quarry in Saudi Arabia

Problem: Plates lasted only 7–10 days with local supplier.
Solution: Upgraded to Mn22 Super Tooth plates from Econe.
Result:

• Lifespan increased to 30–40 days

• Reduced downtime by 50%

• Lowered cost-per-ton by 28%

15.2 Basalt Crushing Plant in Peru

Problem: Severe abrasive wear, uneven output.
Solution: Customized alloy-composite plates.
Result:

• Wear rate decreased by 40%

• Improved crushing efficiency

• Consistent output size

15.3 Limestone Quarry in South Africa

Problem: Premature cracking under high impact.
Solution: Mn18Cr2 heavy-duty jaw plates.
Result:

• Eliminated cracking issues

• Increased throughput by 15%

16. Recommended Supplier for Jaw Crusher Plates

China manufacturers vary, but companies specializing in manganese wear parts—such as Econe—provide reliable long-term value.

Request customized jaw crusher plate solutions from Econe Wear Parts for your quarry or mining application.

These engineered plates offer:

• Optimized tooth profile

• Superior manganese metallurgy

• Strict QC and testing

• Strong global export experience

17. Conclusion

Choosing the right jaw crusher plates is essential for improving production performance, reducing downtime, and lowering operating costs in quarry and mining applications.

This buyer’s guide summarized:

• Material selection (Mn13, Mn18, Mn22)

• Tooth profiles for different rock types

• Supplier evaluation criteria

• Cost and value analysis

• Inspection standards

• Maintenance tips

• Real-world case studies

By sourcing high-quality jaw plates from reputable suppliers in China, quarry and mining companies can significantly improve crusher performance and maximize ROI.