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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 Emirates：Emirates 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 | √ |
Forged steel cold-rolled work rolls are important components of strip cold-rolling mills, and their properties directly affect the shape, surface quality and rolling production efficiency of cold-rolled sheets.
Application: Widely used in various domestic and foreign single-stand and continuous rolling mill units, rolling different products such as automobile sheet, silicon steel, stainless steel, aluminum foil and so on.
Material | hardness | Hardened layer depth | Hardness uniformity | |
Work rolls | 2%Cr,3%Cr,5%Cr | 85-102 HSD | 8~50mm | ±2HSD |
Application: Applied to high-precision 6-high and 8-high mills, its performance directly affects the shape of cold-rolled sheets
| Material | hardness | Hardened layer depth | Hardness uniformity |
Backup roller | 2%Cr,3%Cr,5%Cr | 70-88 HSD | 8~50mm | ±1HSD |
LMMGROUP support roller maximum diameter 1650mm
Application: Suitable for all kinds of four-high, six-high single-stand or multi-stand continuous rolling mills
Material | hardness | Hardened layer depth | Hardness uniformity | |
Intermediate Roll | 9Cr2Mo，86CrMoV7，CR-3A,CR-5A,CR-3B,CR-5B,CR-3C | 60-80HSD | ≥75mm | ±2HSD |
Forged steel roll technical Process:
Electric arc furnace smelting → LF \ VD refining → ingot casting → annealing → cleaning → electroslag remelting → annealing → forging → post forging heat treatment → rough machining → preliminary heat treatment → semi finishing → dual frequency quenching or differential temperature treatment → cryogenic treatment → tempering → finishing → packaging and delivery.
Double refining + electroslag remelting to ensure good metallurgical quality
Perfect heat treatment and cold treatment technology to ensure the depth and hardness uniformity of hardened layer
Production 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.
From smelting to forging, the most advanced technology and equipment are used in the world
Equipped with world-class cold and hot processing equipment to ensure the process accuracy of high-quality rolls
ROLL Mill related accessories:
Certification
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.
Service Display
Pre-sales:
Recommend suitable products according to the actual working conditions and needs of customers.It can also bedeveloped and designed according to needs, and customized services can be provided. During the epidemic, provide remote detection technical support.
Strict quality control:
From raw materials, to the production process and befor eleaving the factory, all performance indicators arestrictly tested, and the professional QC team controls according to the process.
After-sales service:
Quality assurance and Resolution of any issues that arise
About LMM
Founded in 2007, LMM GROUP mainly produces all kinds of metallurgical rolls for various types of steel, bar, high-speed wire and strip hot and cold plate and strip rolling mills.
The company covers an area of 100,000 square meters, including two complete production lines for cast rolls and forged steel rolls, processing workshops, product research and development centers, testing centers, training centers and office buildings and other supporting facilities. The factory environment is very beautiful.
We can provide characteristic service and differentiated products according to the different conditions of rolling mill.
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