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


LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time

High-Speed Steel Rolls for rolling mills:
the cost effective solution to improve rolls lifetime.

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
Customized logo(Min. Order 1 piece)
Customized packaging(Min. Order 1 piece)
Graphic customization(Min. Order 1 piece)
Checking report: Material Report、Hardness Report、UT/MT Report、Dimensions checking report、Mechanical Property Test Report
Processing technology: casting, forging

LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel 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

High-Speed Steel Rolls for rolling mills:
the cost effective solution to improve rolls lifetime.


HSS Rolls, on account of the numerous advantages they offer over other rolls, are becoming increasinglypopular among Steel Rolling Mills worldwide. HSS Rolls are successfully replacing other conventionalrolls which were till date being used in bar mills, structural mills and strip mills. Since the Hss Rollshave a longer product life the mills using these rolls vouch for lower roll costs per tonne, less mill downtime in turn an increase in overall production.These advantages are attributed to the following relevantpoints:


  • chemical Properties:
    with the addition of certain chemicals like of Vanadium,chromium,,tungsten,molybdenum, niobium etc. HSs rolls outer shell gets good thermal stability, high hardness under hightemperature and excellent wear and tear resistance against hot material.
  • Centrifugal Casting:
    HSS rolls have a unique technology of centrifugal casting which ensures highhardness of the roll barrel surface and core being of less hardness which improves the bending strength ofthe rolls which is good for rolling strips and structure mills.
  • High Resistance to Temper Temperatures:
    Hardness of the ordinary rolls drops when tempertemperature rises. On the other hand, HSs rolls hardness is always high even when the tempertemperature is high. Due to this excellent feature Hss rolls has very high failure resistance.
  • Bars made to Size:
    HSS rolls have high swelling factor and good thermal conductivity.Because of thisthe groove/pass sizes are more stable while rolling rebars and has better control of input material negativeallowances. Thus bars are produced as per the size and specifications thus eliminating the chances ofsteel loss and ensuring correct product quality and standards.

Economical advantage of using HSS Rolls

HSS Rolls have a considerably longer product life. As the wear and tear of these rolls is comparatively much less as compared to conventional rolls these rolls are capable of reducing the overall roll cost incurred per tonne of rolled steel. The following are the economical advantages of using HSS Rolls

Lower Roll Cost per Tonne: It is estimated that the useful life of HSS rolls is almost 5-6 times more than that of conventional rolls. Meaning that over all cost of rolls consumed per tonne of finished steel produced is much less.

Increase in Production: Because of the longer product life of the HSS Rolls, the time required for repetitive changing of roll pass is considerably reduced. This regular change of roll pass consumes a lot of time and results in production loss. In addition to production loss, this also accounts for huge energy loss. In case of re-heating furnaces the heated billets/ ingots are forced to be soaked for a longer duration resulting in waste of energy and higher billet/ingot scaling losses. In case of hot charging designs the mill production team is forced to take the heated billet to the cooling bay, thus wasting thermal energy and making the entire system inefficient and cost extensive.

Zero wastage of raw material: Since the grooves/ passes of the HSS rolls have a greater resistance to wear and tear, the shapes of the grooves are stably maintained. Because of the high swelling factor of the HSS rolls with time the barrel swells in turn reducing the size of the worn out grooves. This is very helpful specially in the rolling of bars and re-bars as it give a better control of input material negative allowances.

What do I need for offering a quote ?

Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment and other technical requirement etc.) ,quantity, application or samples. Then we will quote the best price within 24h.

Need For Some Help ?

One of the largest enterprises in China specializing in the production of high-performance high-speed steel roll series products


86(411) 84174804


Our Clients Give The Best Feedback

Read More
Although the price of LMMGROUP is 1.22 times that of the current rolling stock, through this trial, the data shows that the amount of steel passing through is more than 1.3 times higher than the current rolling stock, and the rolling groove wear of the off-line rolling is better than the current rolling stock.
B steel
B steel
Read More
According to the trial situation, The average amount of steel passing through LMMGROUP rolling is about 50%-60% of the alloy rolling spoke. The processing difficulty of high-speed steel is low, and the processing cost is lower than that of the alloy rolling wheel.

We can provide special services and differentiated products according to the different working conditions of the rolling mill.

Service Include

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.

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.

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.

Contact US Now !

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