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LMM GROUP main products focus on the cold and hot plate & wide strip mill rolls and heavy section mill rolls and big casting & forging pieces.

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How to ensure the safe use of rolls for rolling mill, correct maintenance and replacement of rolling mill rolls


The rolls for rolling mill is the core component of the rolling mill. It is used to support the movement of materials during the rolling process and is directly involved in the rolling process. The quality and condition of the rolling mill rolls have an important impact on the quality, output and production efficiency of the rolled products.

rolling mill rolls manufacturerin india

1. Storage

The way your rolling mill rolls are stored has a crucial impact on their service life and safety. To ensure the safe use of rolls, the following storage principles should be followed:

Choose an appropriate storage environment: Ensure rolls for rolling mill are stored in a dry, clean, temperature and humidity controlled environment away from direct sunlight and extreme temperatures.

Avoid contact with harmful substances: Ensure that the roll does not come into contact with corrosive substances or substances that damage the surface of the rolls.

Reasonable stacking: Avoid stacking rolls to avoid unnecessary pressure or deformation.

2. Regular inspection and maintenance

Regular inspection and maintenance are important aspects to ensure the safe use of rollers:

Regular visual inspection: Regularly check the roll surface for cracks, damage or corrosion to ensure its integrity.

Performance testing: Regularly conduct performance testing of the rolls, such as hardness, roundness, etc., to ensure stable performance.

Preventive maintenance: Carry out preventive maintenance such as lubrication and cleaning according to the use of the roll and the manufacturer’s recommendations.

3. Operating instructions

Correct operation is the basis for ensuring the safe use of rollers:

Follow operating procedures: All operators must strictly abide by the operating procedures of the roll, and illegal operations are prohibited.

Load management: Reasonably arrange production tasks according to the load-bearing capacity of the rollers to avoid overloading.

Real-time monitoring: When using the roller, its operating status should be monitored in real time, and if any abnormalities are found, stop the machine immediately for inspection.

4. Maintenance and replacement

When rolls require maintenance or replacement, the following principles should be followed:

Regularly replace wearing parts: According to the wear situation, regularly replace the wearing parts of the roller, such as bearings, seals, etc.

Maintenance operation specifications: When performing maintenance operations, the maintenance instructions provided by the manufacturer must be followed. Unauthorized disassembly or repair is strictly prohibited.

Disposal of old rollers: Rolls that have reached the end of their service life should be scrapped in accordance with relevant regulations and are prohibited from continued use.

5. Safe operation training

In order to ensure the safe use of rollers, operators must undergo strict safe operation training:

Training content: Training should include basic knowledge of rolls, safe operating procedures, emergency measures, etc.

Qualification certification: For personnel who need special operations, qualification certification should be carried out to ensure that they have the ability to engage in relevant work.

Regular refresher training: Operators should receive regular refresher training to maintain familiarity and vigilance in the safe use of rolls.

rolls for rolling mill

To properly maintain and replace rolls, you can follow these steps:

1. Timely inspection: During the use of the roll, its surface quality, size and hardness, etc., as well as the operating status of the rolling mill, should be checked regularly to ensure the normal use of the roll.

2. Lubrication: The lubrication of the roll is very important. Proper lubrication can reduce friction and wear and prevent the roll from overheating and surface damage. Lubricate the rolls regularly and ensure that the lubrication system is working properly.

3. Cooling: The roll will generate a lot of heat during the rolling process. If it is not cooled in time, it may cause the roll to overheat and affect its service life. Therefore, the rolls should be cooled regularly and the cooling system should be ensured to work properly.

4. Replace the rolling mill rolls: When the roller is seriously worn or damaged, it should be replaced in time. When replacing rolls, the rolling mill should be stopped first and the old rolls should be removed. Then, install the new roll and adjust its position and height to ensure it fits well with other parts of the rolling mill. Finally, start the rolling mill and check the condition of the new rolls.

5. Storage: Unused rollers should be stored in a dry, clean place to avoid corrosion or damage. For rollers that have not been used for a long time, anti-rust agents should be applied or other anti-rust measures should be taken.

6. Records: The maintenance and replacement of rolls for rolling mill should be recorded, including replacement time, reason for replacement, usage, etc. This helps track roll life and provides a reference for future maintenance and replacement work.

The above are some steps and precautions for correct maintenance and replacement of rolls. Following these steps can ensure the normal use of the rolls and extend their service life.

Rolls for rolling mill manufacturers

Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Always a pre-production sample before mass production;
Always final Inspection before shipment;
During the epidemic, provide remote detection technical support

Tell us a little about your application and we’ll get back to you to finalize a quotation to meet your needs as quickly as possible.

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.

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