Main factors include:
Material grade and alloy system. High manganese steels such as ZGMn13 and ZGMn18 are commonly used for jaw plates and are priced differently depending on Mn content and alloy additions. Higher Mn and special alloy or ceramic-composite designs increase cost but also extend service life.
Dimensions and weight. Large jaw plates for primary crushers involve high casting weight and more molten metal, which directly raises the base price per piece and per set.
Casting and heat treatment process. Advanced processes such as DISA vertical molding lines, lost foam casting, and natural gas heat-treatment furnaces add process cost but improve consistency, hardness, and impact toughness, improving lifetime value.
Machining and finishing. Tight tolerances, precision grinding, and robotic finishing for critical mounting surfaces improve assembly accuracy but add machining cost.
Order quantity and mold situation. If a factory already has mature tooling and patterns for your crusher brand, your unit cost will be lower than for a one-off custom design requiring new molds. Larger batch quantities typically bring better unit pricing.
Because these parameters vary strongly between users, professional factories issue project-based quotations rather than a single public list price per jaw plate.
Most large jaw plate factories set a minimum order quantity (MOQ) based on casting process and furnace loading. For common crusher models with existing patterns, MOQs can be as low as a few sets, while custom designs often require higher quantities to amortize tooling and setup costs.
Material specification (e.g., ZGMn13 or ZGMn18) and hardness or mechanical performance targets.
Net weight, unit price per piece or per kg, and total price per set.
Heat treatment process (such as quenching and tempering) and expected service-life level.
MOQ, tooling fee (if any), sample policy, and delivery time.
Validity period of the quotation and trade terms (FOB, CIF, etc.).
Instead of a public catalogue price, large crusher operators usually request a tailored quotation based on their crusher brand, chamber profile, and ore abrasiveness, which can significantly change the recommended jaw plate design and therefore pricing.
ZGMn13 jaw plates: Lower Mn content makes them more economical and suitable for relatively less abrasive conditions; unit price per kg is usually lower.
ZGMn18 jaw plates: Higher alloy content raises the material and heat-treatment cost but improves wear resistance and impact toughness, reducing the cost per ton of crushed ore in harsh conditions.
Some advanced factories also apply ceramic-composite technology in other crusher wear parts (for example, impact blow bars) to increase service life by more than three times compared with conventional alloys. Although such composite designs cost more per piece, their extended service life and reduced downtime often deliver lower overall cost, and similar concepts can be applied when optimizing crusher jaws for extreme wear.
Operations such as annealing, normalizing, quenching and tempering are used to achieve target hardness, tensile strength, and impact toughness for wear parts.
Continuous pusher furnaces and car-type gas furnaces with optimized recipes help keep product performance stable, with qualification rates reported around or above 98%.
Each heat-treatment step adds energy, gas and process time costs, but without correct treatment even a high-grade manganese steel jaw plate may crack or wear quickly, raising total costs for the end user.
Spectrometer checks on every batch of molten metal to confirm alloy composition.
Mechanical tests such as tensile, hardness, and impact testing to ensure the jaw plate achieves the specified hardness and toughness.
Dimensional inspection using dedicated fixtures and coordinate measuring machines (CMM) to guarantee proper fit in the crusher.
In some plants, final inspection coverage can reach 100% for key wear parts, which supports stable quality for long-term OEM customers such as SANY, Zoomlion, XCMG, Liebherr and others. These inspection and quality-system costs (for example, ISO9001 compliance) are included in the price but help reduce risk and total cost of ownership for the buyer.
Crusher brand and model. Many factories maintain mold libraries for popular brands like Metso, Sandvik, Kleemann and others, which shortens delivery and reduces tooling cost.
Drawing or OEM part number. Complete drawings with dimensions and tolerances ensure correct pattern selection or new pattern design.
Material and working conditions. Indicate preferred material grade and describe feed size, ore type, and target lifetime so engineers can optimize alloy and profile.
Order quantity and delivery time. Planned batch size and required delivery date help the factory schedule production and offer the best possible price.
With advanced digital tools such as MES production management and 3D sand printing, a foundry can quickly design and produce complex castings, shortening development cycles from several weeks to around half the traditional time. This responsiveness supports faster sampling of new jaw plate designs and more agile price negotiations.
Expected service life. A jaw plate with higher initial price but 50–100% longer life can significantly reduce shutdown frequency and labor costs.
Dimensional accuracy and fit. Better fit reduces installation time and avoids early breakage caused by stress concentrations, saving maintenance cost.
Stability and traceability. Factories that apply MES, ERP and full process data tracking are better positioned to keep quality stable and investigate any failures.
In some product lines, such as mixer parts and pump truck elbows, optimized alloys and structures have delivered life extension of 30–300% compared with conventional designs. Applying similar engineering approaches to jaw plates, the most economical solution is usually the one with the lowest cost per ton of crushed product, not the lowest quotation per piece.
A large specialized foundry like Haitian Heavy Industry offers a full range of wear parts, including jaw crusher plates, cone liners, impact blow bars, vertical mill liners, and wear parts for concrete, asphalt and metallurgical equipment. The company has decades of experience in high-chromium and high-manganese wear-resistant castings and serves both domestic and international OEMs as a core supplier.