Service Life Improvement of Cone Crusher Liners

Project Background
An overseas mining customer was experiencing premature wear and uneven consumption of cone crusher liners (mantle and concave).
Under high-abrasion operating conditions, the liners showed severe localized wear, resulting in low utilization rate and frequent replacements.

The customer approached TSR seeking a solution to extend liner service life while improving wear uniformity, without increasing operating complexity.

Challenges

• Highly abrasive ore with fluctuating feed size
• Uneven wear between upper and lower liner zones
• Early discard of liners despite remaining usable areas
• High annual liner consumption and downtime

TSR Solution
After analyzing the crusher operating parameters and wear patterns, TSR proposed a customized liner optimization solution:

• Upgraded material to high-chromium alloy cast iron (Cr 22–24%)
• Optimized chemical composition and heat treatment to improve carbide distribution
• Locally reinforced high-wear zones through adjusted liner thickness design
• Improved casting quality to enhance structural stability

This solution focused not only on wear resistance, but also on maximizing liner utilization.

Technical Parameters (Reference Data)

• Material: High-chromium alloy cast iron
• Chromium content: 22–24%
• Working surface hardness: HRC 58–62
• Liner thickness optimization: +10–15% in high-wear areas

Performance Results
After installation and continuous operation, the customer reported clear improvements:

• Average liner service life increased from 4–5 months to 8–9 months
• Wear uniformity improved by approximately 30–35%
• Annual liner consumption reduced by around 25%
• Crusher availability significantly improved due to fewer shutdowns

Customer Feedback
The customer confirmed that the optimized liners delivered stable performance, longer campaign life, and lower overall operating cost, meeting both technical and economic expectations.

Project Value
This project demonstrates TSR’s capability in cone crusher liner material engineering and application-specific design optimization.
By combining material upgrades with structural refinement, TSR helps mining customers extend wear part life, reduce maintenance frequency, and improve crushing efficiency.