The world No. 1 in crude steel production steel plant, over 70% of the HSS for bar and wire are from us.

YUAN HUI

YUAN HUI

LMM GROUP main products focus on the cold and hot plate & wide strip mill rolls and heavy section mill rolls and big casting & forging pieces.

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Status of forged steel rolls

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Forged steel rolls can be divided into forged steel hot rolls and forged steel cold rolls.

rolling mill rolls steel roller

Forged steel hot rolls are mainly used for hot rolling and section steel roughing rolls, and forged steel cold rolling rolls are widely used as cold rolling work rolls.

Due to the high quality requirements of cold-rolled sheets, especially cold-rolled sheets are widely used in light industry, automobile, construction and railway industries, to produce high-quality cold-rolled sheets, high-quality cold-rolled work rolls must be guaranteed. This places high demands on the performance of cold-rolled work rolls.

The surface of the roll body must have high and uniform hardness to ensure the dimensional accuracy and good surface quality of the cold-rolled strip or steel plate. The roll body has a certain depth of hardened layer. Has high anti-accident ability.

In order to achieve these properties, the original structure of the roll material is very strict. One is the pure metallurgical quality; the other is the uniformity of the organization. High metallurgical quality means that the crystallization of the rolled steel ingot is dense, the segregation is not serious, white spots are not allowed, and the content of non-metallic inclusions remaining in the steel is as low as possible.

The microstructure requirements of the roll in use state are hidden needle M and fine C, and the carbide particle size is as small as possible (0.5-2 microns), and it is dispersed. At the same time, a certain depth of the hardened layer is ensured. The increase of the depth of the hardened layer can reduce the number of re-quenching of the roll in use and greatly reduce the cost of the roll.

Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Always a pre-production sample before mass production;
Always final Inspection before shipment;
During the epidemic, provide remote detection technical support

Tell us a little about your application and we’ll get back to you to finalize a quotation to meet your needs as quickly as possible.

Rolling mill rolls product

Classification by roll material:

Cast iron mill rolls

  • Alloy indefinite chilled cast iron rolls
  • Alloy chilled cast iron rolls
  • Alloy SG ductile cast iron roll
  • Pearlitic ductile cast iron roll
  • Bainite ductile cast iron roll
  • Centrifugal cast iron roll


Cast steel mill rolls   

  • Alloy cast steel rolls
  • Semi-steel roller
  • Graphite steel rolls
  • High-chromium steel roll
  • High-speed steel roll


Forging mill rolls

Sort by position on the rolling mill:

Work rolls
backup rolls

Intermediate roll

Product advantage

The world No. 1 in crude steel production steel plant, over 70% of the HSS for bar and wire are from us.

LMM high-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, and improve the overall efficiency of the factory.
Generally, the amount of steel passing in a single groove (times) is 3 to 5 times that of cast iron rolls.

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We would be happy to help and advise if you have any questions or inquiries.