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

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LMM is a company specialized in mill roll production and supply. With many years of experience and advanced production equipment, we can provide you with high-quality and reliable mill roll products.

Our rolling mill rolls are suitable for various metallurgical industry fields, including the production of bars, wire rods, section steel, strips, etc. We can customize rolls according to customers’ specific requirements and application scenarios to ensure their performance and life in various environments.


LMM specializes in roll grinding services. It has done so for over 30 years. We get you back up and running faster with our unmatched expertise and proprietary technology. The world No. 1 in crude steel production steel plant, over 70% of the ROLLS for bar and wire are from us.

rolling mill rolls
rolling mill rolls

Safe & stable mill rolls make your production more reliable

LMM rolls are made of high-quality materials, which can ensure the production of high-precision and high-quality finished products, Increased roll life means fewer regrinding cost, less roll changes and decreased downtime.



Our rolls passed the IS09001:2008 quality management system certification. With LMM, you won’t have performance problems, experience product consistency issues or run slower.



We have overseas warehouses in the United States, Germany, Iran, India, Turkey, Mexico, we can receive and deliver your rolls faster, reducing costly downtime. Our mill rolls will run longer and better, saving you money in the process too.



High-speed steel rolls developed by LMM the amount of steel passing in a single groove (times) is 3 to 5 times that of cast iron rolls.

How to choose the Rolling mill roll material

Perfect production process

Cast rolls technical Process:
Modeling → smelting → centrifugal casting → cleaning → preliminary heat treatment → rough machining → differential heat treatment → finishing → packaging and delivery.

rolling mill rolls

Processing Equipment

Technical excellence in our core competencies – melting, casting, forging, heat treating and machining – allows us to provide a superior product and meet the most demanding requirements of our customers.

The company strictly according to modern enterprise management requirements set up a perfectquality assurance system, and passed the ISO9001:2008 quality management system certification,ISO14001:2004 environmental management system certification, OHSAS18001:1999 occupationalhealth and safety management system certification.

With the globalization of the market strategy, information-based marketing system, high efficient and accurate market response, to promote market position. The products and projects of LMM Group have been exported to more than 90 countries and regions. Overseas warehouses and overseas branches have been successively established in the United States, Switzerland, Mexico, Germany, Iran, Turkey and other coun-tries. No matter when and where, LMM has always uphold the concept of quality service, take the initiative to communicate with customers by heart, rapid response, know the customer needs, to provide value-add-ed services to customers.

type of rolling mill roll

Classified according to the temperature when the rolled material is rolled

  • The rolling temperature higher than the recrystallization temperature of the rolled material is called hot rolling, and the corresponding roll is called hot rolling roll.

  • The rolling temperature lower than the recrystallization temperature of the rolled material is called cold rolling, and the corresponding roll is called cold rolling roll.

Classification according to the shape of rolled products

The rolled hot strip products are called hot strip rolls, and so on, there are: cold strip rolls, plate steel rolls, section steel rolls, seamless steel tube rolls, rod and wire rolls, etc.

Classification according to the function or position of the rolling mill on the rolling line

The blanking rolls used in the blanking mill are called blanking rolls, and so on, there are rough rolls, middle rolls, pre-finishing rolls, finishing rolls,

Finishing front rolls, finishing rolls, cross cut skinning rolls, slitting skinning rolls, slitting rolls, vertical rolls, edge rolling rolls, piercing rolls, tube rolling rolls, stripping rolls, tension reducing rolls, straightening Roller etc.

Classification according to the position of the roll on the rolling mill

The rolls that are in direct contact with the rolled material are called work rolls.

The roll that supports the rolling mill is called the back-up roll, and the roll that is farthest from the work roll in the multi-roll mill is called the back-up roll.

The roll between the work roll and the back-up roll in a multi-roll mill is called an intermediate roll.

Classified by roll material

According to the classification of materials, the rolls are divided into four categories: cast steel rolls, cast iron rolls, forged steel rolls and powder metallurgy rolls, and they are subdivided according to the material and main alloying elements of the working parts of the rolls.

Roll Technology Forum

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