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Effect of rolling force and rolling moment on the life of working roll

Excessive rolling force and rolling moment are the main reasons for the fracture of the root of the working roller neck and the twisting of the roller diameter bearing force.The fracture of the root of the roller neck may also be caused by the small radius of the circular Angle when the roller root is processed, resulting in the stress concentration or the excessive temperature of the bearing.When the neck of the roller is twisted and the mouth is broken, it is completely because the torque transferred exceeds the design negative load of the working roller neck.The cause of the fracture from the neck of the two working rollers at the same time is that the rollers bear the overload impact force.

LMM GROUP Main product

Rolling mill rolls


As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

LMM Main product series

Core technology products:

  • magnesia carbon brick
  • slide gate plate
  • graphite electrode

Core technology products:

  • Hss roller
  • cast steel rolls
  • tungten carbide ring roller

Core technology products:

  • copper mould tube
  • copper mould plate
  • assembly & cooling jackts

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