Professional WORK ROLL Manufacturer

As a provider of high-durability work rolls, LMM GROUP ensure our products are built to last. Our rolls undergo rigorous testing to guarantee they can withstand the toughest operating conditions, providing reliability and longevity.

Work rolls are essential components used in rolling mills, which are machines that process metal by passing it through pairs of rolls to reduce its thickness, improve its surface finish, and achieve desired mechanical properties.

Work rolls

Here’s a more detailed look at work rolls:

Function: Work rolls are the primary tools that directly contact the metal being processed. They apply pressure and force to shape and reduce the thickness of the metal sheet or strip.

Materials: Work rolls are typically made from high-strength materials such as hardened steel, cast iron, or specialized alloys. The material choice depends on the specific application and the type of metal being rolled.

Design: Work rolls come in various sizes and shapes, depending on the rolling mill’s design and the specific rolling process. They can be cylindrical, conical, or have other specialized profiles.

Types: There are different types of work rolls used in various rolling processes:

Hot Rolling Work Rolls: Used in hot rolling mills where the metal is processed at high temperatures.
Cold Rolling Work Rolls: Used in cold rolling mills where the metal is processed at or near room temperature.
Backup Rolls: Larger rolls that support the smaller work rolls to prevent deflection and ensure uniform pressure distribution.

Typical Chemical Analysis and Mechanical Properties: 

Product Name



Tensile Strength



Low. medium NiCrMo
indefinite chill  rolls



High NiCr indefinite
chilled rolls



The scope of supply


Work rolls Applications: 

It used in a wide range of industries, including steel production, aluminum manufacturing, and other metalworking sectors. They are crucial for producing metal sheets, strips, and other products with precise dimensions and surface qualities.
Maintenance: Work rolls are subject to wear and tear due to the high pressures and temperatures involved in the rolling process. Regular maintenance, such as grinding and resurfacing, is necessary to ensure their longevity and performance.

backup rolls
backup rolls
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LMM is the professional manufacturing plant, Founded in 2007, which is producing and supplying metallurgical rolls for iron and steel industry. The registered capital of the company is RMB 112,383,000,the total assets more than 1,000,000,000 and the company covers area of 400,000 ㎡ with staff more than 1000.

LMM GROUP is one of the professional roll manufacturing base in China, which supply all kinds of large-size rolls for iron and steel enterprises with production capacity of 100,000 tons of all kinds of hot strip mill rolls, section mill rolls, rod mill rolls, cold rolling mill rolls, casting and forging backup rolls.

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Please provide design data for special processing requirements

LMM GROUP’s roll production technology originates from United Electric Steel’s Davie Company in the United States, which has developed the world’s most advanced metallurgical powder technology, making the metallographic structure more dense.

  • Good economic benefits
  • Stable rolled strip profile
  • Good surface quality
  • High dimension accuracy
  • Expert technical advise
  • Good wear resistance
  • Prolonged service period
  • High safety factor

LMM Excellence in our core competencies

  • United Electric Steel’s Davy Company in the United States technical .
  • Internationally advanced processing equipment – DRY GRINDER etc,.

allows us to provide a superior product and meet the most demanding requirements of our customers.

LMM GROUP have been supplied to world’s top steel manufacturer :

United Arab EmiratesEmirates Steel
Egypt:Ezz Steel
Russia:MMK,Mechel, NLMK
Luxembourg:RIVA Group,ArcelorMittal
Turkey: Tosyalı Holding,İçdaş,Erdemir Group
Spain: Liberty Steel Group,CELSA Steel Group
India: tata-steel,SAIL, SPL,Erdemir Group etc. We do OEM for Concast and Danieli for a long time

Pre-Sales Service

* Inquiry and consulting support.

* Planning layout and Design requires machinery

* Welcome visit our Factory.

* The production process and before leaving the factory, all performance indicators are strictly tested, and the professional QC team controls according to the process.


After-Sales Service

* Engineers available to service machinery overseas.

* IN-TIME delivery goods.

* The quality is tracked throughout the process, and the installation and use are guided throughout the process.

* Long-term technical support.

* Stick to the agreement, do not do anything that violates the agreement, stick to the spirit of the contract to the end.