A rail grinding (or milling & grinding) train restores the rail head profile, removes corrugation and controls rolling contact fatigue before defects become broken rails.
Buyers typically justify grinding when: corrugation noise rises in metro corridors; RCF / head checks appear on mainlines; or life-cycle cost models show grinding cheaper than early rail replacement.
RAILINK sources grinding cars and related equipment through vetted Chinese machinery partners — with one contract and one QC standard.