Polyurethane Wear-Resistant Liner

Currently, various grades and materials of liners are applied in actual production, including metal liners, ceramic liners, and rubber liners.

Compared to polyurethane wear-resistant liners, these liners have some drawbacks in use. For example, metal liners are heavy, increase equipment load, are complex to replace, and can only be used for grinding materials that are not contaminated by iron. Ceramic liners are generally expensive due to production process limitations.

Once they crack during use, they must be entirely replaced, resulting in low effective material utilization and short service life. Rubber liners are prone to aging and have poor tear resistance, especially under the impact of high-speed hard materials. Operating temperatures rise, significantly accelerating wear rates.

Therefore, utilizing modern composite material technology to develop a new type of high-performance wear-resistant composite liner is of great significance for improving grinding efficiency and reducing energy consumption in grinding operations.

Polyurethane wear-resistant liner is a polymer material that falls between rubber and plastic. While possessing a certain degree of elasticity, it also offers excellent wear resistance, temperature resistance, and tear resistance.

By combining polyurethane resin with inorganic non-metallic hard fillers to create composite mill liners, both the wear resistance of the material can be enhanced and the impact of grinding media on the liner can be mitigated, thereby extending the liner's service life.