What exactly does the "customized heat treatment" stated for your FV series conveyor chains refer to? How much longer service life can it provide compared with standard heat treatment of chains?

It means we adopt independent quenching and tempering process parameters for different load-bearing components such as chain plates, bushings and pin shafts, so that each can achieve the optimal balance of strength and toughness, instead of a one-size-fits-all approach.
For example, chain plates focus more on surface wear resistance, while pin shafts prioritize shear resistance. Practice has shown that under the same working conditions in mining, this method can increase the wear life of the entire chain by 25%-35%, and significantly reduce downtime caused by the failure of a single component.