Overview
The concave (bowl liner) is the stationary wear component of a cone crusher, mounted in the bowl assembly and working in conjunction with the gyrating mantle to compress and crush rock. As one of the two primary crushing surfaces, the concave directly determines crusher throughput, product quality and operating cost.
Our concaves are cast from ZGMn13-2 or Mn18Cr2 high manganese steel , which work-hardens under the impact of crushing to achieve surface hardness exceeding HB 500 while maintaining a tough, crack-resistant core. Multiple cavity profiles (standard, coarse, fine, extra-fine) are available to optimize performance for different feed sizes and product specifications.
Quality & Application
Each concave passes comprehensive inspection including dimension verification, chemical composition analysis and surface quality checks before shipment. The outer mounting surface is precision-machined for proper fit in the bowl assembly.
Standard concaves are stocked for all common Symons spring cone crusher sizes. Custom manganese grades, cavity profiles and dimensions are available for specific rock types (hard granite, limestone, iron ore) and application requirements. Selecting the right concave profile and material is critical for maximizing crusher productivity and minimizing cost per ton in mining, quarry and aggregate operations.
Key Features
- Premium Manganese Steel: ZGMn13-2 or Mn18Cr2 high manganese steel work-hardens under impact for maximum wear life.
- Extended Wear Life: Work-hardening surface reaches HB 500+, delivering 2-3x longer service life than standard liners.
- Multiple Cavity Profiles: Standard, coarse, fine and extra-fine profiles available to match your feed and product requirements.
- Optimized Crushing Efficiency: Precision-cast profile ensures consistent crushing gap and uniform particle size distribution.
- OEM Interchangeable: Fully interchangeable with original Symons cone crusher concave dimensions and mounting interface.
- Custom Alloys & Profiles: Custom manganese grades (Mn13, Mn18Cr2) and cavity profiles for specific rock types and applications.
Compatible Machines
Fits Symons Cone Crusher (2ft / 3ft / 4.25ft); Symons Cone Crusher (5.5ft / 7ft); Spring Cone Crushers (Custom Fit Available).
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