← Critical Product/Equipment/Process: Metals, Mining & Materials (all topics)
Wear parts / mill liners
What it is
Consumable components that take the abrasion in crushing, grinding and material handling - mill liners, crusher jaws, screen panels and chute linings. They wear out on a duty cycle and are replaced regardless of capex conditions
Material choice runs from high-chrome alloys to rubber and composite designs
Impact on industries
- Pure consumable annuity - demand follows tonnage processed rather than new equipment purchases, so it is counter-cyclical to capital spending
- Wear life directly affects mill downtime, so customers buy on total cost per tonne rather than on part price
- Application engineering and wear monitoring make the supplier hard to displace once specified into a mill
- Requires metallurgy and foundry capability plus on-site technical service, so it is not a simple components business