Thereare different specification of the middle roll. they are semi-finished products, and the specification is from dia.61mm to dia.600mm. We can supply the middle roll at the surface hardness of HSD75-85. And in one work roll the hardness error is lessthen 3HSD.The depth of the hardness is more than 80mm at radius in material Cr12%. The material of those working rolls are Cr3 ,Cr5 ,Cr8 or Cr12. This work roll is used in cold reduction mill of 12 to 20 roller. And generally speaking , the price quotation is in acdordance with the customers' drawings and the weights of the products.
six roller rolling mill middle roll