Rehardening of used rolls

Rehardening of used rolls

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The lifetime of surface hardened rolls depends on thickness of the hardened layer. When this layer is worn out, the roll has to be taken out of production process – though its diameter and other performances are still suitable. 
 
With a special technological process, the used roll can get a “second life”. In the process of rehardening, the surface layer regains the required hardness without influencing other characteristics of the roll.  Durability of rehardened rolls is equivalent to that of a new roll, but the costs are lower.
 
Successful regeneration of the old rolls is possible with our dual frequency indfuction hardening machine. We can rehardening old rolls from 200 up to 830 mm diameter and max. weight 10000 kg.
 

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