Work Rolls

Brand name: LMM GROUP
Packing Details : Wooden box with fumigation or Wooden Fram
Delivery Details: 30~60days or Based on the quantity
Shipping: Sea freight、Land freight、Air freight

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

Australia: Liberty steel/Bluescope steel
Iran: Oxin steel
Italy: JSW steel
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

Manufacture drawing

Process schedule with ETD date

QC checking of each process

Checking report

Photos &videos of each process

ISO 9001 certificate

Warranty Time

The third party Checking

Optimizing the rolling process relies heavily on work rolls, which offer numerous benefits: improved surface quality, durability, thermal stability, and precision, along with high load capacity and customization options.

These advantages lead to reduced maintenance costs and increased production efficiency. By choosing LMM GROUP’s high-quality, customized work rolls tailored to specific operational needs, overall performance and production can be significantly enhanced.

 

Work rolls of hot strip mill

The ICDP rolls, crafted using the centrifugal casting method with a three-layer casting process, ensure excellent metallurgy bonding between the shell and core, preventing alloy permeation.

These rolls boast exceptional wear resistance and surface finish, thanks to the presence of free graphite in their microstructure. Moreover, they exhibit outstanding anti-sticky and anti-fire properties, making them successful choices for various hot strip mills.

Typical Chemical Analysis and Mechanical Properties: 

Product Name C Mn Ni Cr Mo Hardness Tensile Strength
Barrel Neck
Low. medium NiCrMo
indefinite chill  rolls
3.0/3.4 0.3/1.5 1.0/3.5 0.4/1.2 0.1/0.4 60/75 >400 >350
High NiCr indefinite
chilled rolls
3.0/3.4 0.3/1.5 3.5/4.8 1.2/2.0 0.2/0.8 75/90 >350 >350

The scope of supply

①200-600×1050×3000;(φ500-1360)×(1350-5300)×11000

More product

 

Material Deformation: Ensuring Precision

Work rolls serve as the primary force for deforming steel, exerting pressure to reduce thickness while extending length for precise dimensional accuracy.

Consistent Performance: Key to Quality Assurance

Maintaining high-quality work rolls ensures consistent performance across multiple rolling processes, crucial for achieving uniform product thickness and quality.

Surface Quality: Enhancing Finish

Smooth work roll surfaces directly impact the surface finish of rolled steel, with high smoothness yielding excellent product quality and minimizing defects.

Durability and Long Life: Sustaining Efficiency

Crafted from wear-resistant materials like high carbon or alloy steel, work rolls ensure longevity under high stress conditions, reducing downtime and enhancing mill productivity.

Thermal Stability: Resisting High Temperatures

Designed to endure hot rolling temperatures, work rolls maintain structural integrity, preventing issues like thermal fatigue and cracking that can impair performance and lifespan.

Load-carrying Capacity: Supporting Heavy Loads

Withstanding immense pressure during rolling, work rolls ensure uniform pressure distribution across the surface, maintaining consistent product quality.

Precision and Accuracy: Meeting Specifications

Manufactured with tight tolerances, work rolls ensure precise control over steel thickness and shape, meeting strict standards and specifications.

Customization and Flexibility: Tailored Solutions

Adaptable to diverse mill operations, work rolls can be customized for varying diameters, lengths, and surface textures, offering versatile production capabilities.

Improved Production Efficiency: Enhancing Output

The robustness and reliability of work rolls enable high-speed rolling, increasing production output and efficiency while reducing downtime through extended lifespan and minimized maintenance needs.

ABOUT LMM GROUP

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.

Product advantages

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

Casting production of rolls

The company adopts conventional casting、grooved mould casting and centrifugal casting(horizontal、vertical)methods for roll production. The major production process is adoptive of advanced computer control technology and the system is automatically controlled, which ensures homogeneity of process Control and homogeneity of product quality.

The maximum dimension of rolls produced by the large vertical spin-caster is φ1350×5300×11000, which meets the requirement of hot plate mill and CSP mill work rolls.

The company can supply customer with high wear resistance and stablity, high-strength quality rolls .

Heat Treatment of Rolls

Heat treatment furnaces are independently numerically controlled and centrally computer controlled.Heat treatment of strip mill rolls is adoptive of process and technology imported from Davy Roll UK.

Machining of Rolls

Advanced high-accuracy machine tools plus experienced turning techniques and control technology meet high requirements demanded by roll manufacturing accuracy.

Inspection of Rolls

The company set up”roll inspection & research center”, quality control of rolls and inspection are carried out .

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

Australia: Liberty steel/Bluescope steel
Iran: Oxin steel
Italy: JSW steel
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.

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 mil rolls, rod mil rolls, cold rolling m rolls, casting and forging backup rolls.

Please provide design data for special processing requirements

work rolls

Get a quote quickly

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