Brand name: HANI TECH
Packing Details : Fumigated wooden box, Steel frame, Wooden frame, Strapping
Delivery Details: 30~60days or Based on the quantity
Shipping: Sea freight、Land freight、Air freight
HANI has provided customized mill rolls to dozens of steel mills around the world and has many long-term partners.
HANI GROUP, a pro in roll production, is devoted to delivering premium, high – performance mill rolls globally. With rich experience and advanced tech, we meet diverse steel rolling needs.
Our mill rolls feature high precision, great wear resistance, and strong fatigue resistance. They boost steel rolling mill output and product quality, reducing downtime and enhancing competitiveness.
Partnering with us brings stable, reliable, and efficient mill rolls solutions. Our experts offer full support from selection to after – sales. Contact us now to learn more and achieve your business goals!
The ICDP rolls adopt the centrifugal casting method with three layers casting process for getting good metallurgy bonding between shell and core to avoid the alloys permeate each other.
These rolls have good wear resistance and surface finish. That’ s because the certain amount of free graphite exists in the microstructure, and the roll have very good anti-sticky property and anti-fire property. It’ s proved successful used in many different 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
On the basis of original alloy composition of normal ICDP，the hardness of carbide is increasing by adjusting the other elements and the graphite is refining by modification treatment of molten iron. Besides, the hardness fall of radial work layer is smaller.
At present the enhanced rolls are generally used as work rolls for finishing stands of 4-high hot strip mill, work rolls for roughing stands/finishing stands of hot strip mill and 4- high wide strip of reversing mill, work rolls for 4-high cold strip mill, work rolls/back-up rolls for tempering stands of 4- high hot strip mill and steckle mill. The rolling tonnage per millimeter is increased a lot compared to ordinary rolls due to good hardness fall and structural properties.
Typical Chemical Analysis and Mechanical Properties
| Material Name | C | Mn | Ni | Cr | Mo | ME | Hardness | Tensile Strength | |
| Barrel | Neck | ||||||||
| Enhanced high Nicr indefinite | 3.0/3.4 | 0.3/1.5 | 4.0/5.0 | 1.0/2.0 | 0.2/0.8 | 0.5/2.0 | 75-85 | ≥345 | ≥425 |
The scope of supply
(φ500-1360)×(1350-5300)×11000
The high Cr cast iron rolls are applied to work rolls for roughing/finishing stands of 4 -high medium, wide plate mill, work rolls for roughing/finishing stands of 4-high hot wide strip mill, work rolls/back-up rolls for tempering stands of 4- high cold and hot strip mill. The high Cr rolls are produced by centrifugal casting of three layers. The outer layer consists of high Cr white iron, the intermediate layer and core consist of SG. The material of outer layer has excellent wear resistance and good anti-fire and anti-spalling, resistance to banding defect and red hardness. cast iron rolls price
Typical Chemical Analysis and Mechanical Properties
| Code | C | Mn | Ni | Cr | Mo | ME | Hardness | Tensile Strength | |
| Barrel | Neck | ||||||||
| High Cr cast iron rolls | 2.4/3.0 | 0.7/1.5 | 0.7/1.5 | 14/20 | 0.7/3.5 | 0.2/1.5 | 65-95 | ≥850 | ≥425 |
Compared to ordinary high Cr cast iron rolls, the enhanced ones add modification treatment and applied to work rolls for roughing/finishing stands of 4-high medium, wide plate mill, work rolls for roughing/finishing stands of 4- high hot wide strip mill, work rolls/back-up rolls for tempering stands of 4-high cold and hot strip mill. The modification treatment limits oxidation of the roll surface, concurrent occurrence with the banding and spalling in adverse thermal.
environment. The improved surface in the rolling cycle cause less scale spalls off the roll and is less sticky onto the rolled strip. less mill scale and less potential damage lead to smaller quantity of grinding that prolongs the service period. Therefore, the roll life is prolonged and longer roll campaign and less number of roll-change are achieved.
Typical Chemical Analysis
| Material Name | C | Mn | Ni | Cr | Mo | Hardness | Tensile Strength | |
| Barrel | Neck | |||||||
| Enhanced high cr cast iron rolls | 2.4/3.0 | 0.7/1.5 | 0.7/1.5 | 14/20 | 0.7/3.5 | 65-90 | ≥850 | ≥425 |
The scope of supply
(φ500-1360)×(1350-5300)×11000
High – grade materials for mill rolls are the fundamental building blocks for guaranteeing the superior quality of the rolls. HANI GROUP typically opts for materials that exhibit remarkable properties, such as exceptional high strength, high toughness, excellent wear resistance, and outstanding high – temperature resistance. Commonly used raw materials encompass alloy steel, carbon steel, stainless steel, and more.
Forging stands as a crucial stage in the manufacturing of mill rolls. Through the forging process, the internal structure of the material can be precisely adjusted, leading to an enhancement in the material’s density and strength. During forging, it is imperative to select the appropriate forging ratio and forging temperature, carefully control the heating and cooling rates, and ensure that the internal structure and mechanical properties of the material strictly adhere to the specified requirements.
Heat treatment is one of the pivotal steps in mill roll production. It has the ability to transform the internal structure of the material, thereby improving its strength and hardness. Common heat treatment techniques include quenching, tempering, nitriding, and others. Throughout the heat treatment process, meticulous control of the heating temperature and cooling rate is essential to ensure that the material attains the required hardness and strength levels.
Machining is a vital link in the chain of mill roll manufacturing. By employing machining processes, it is possible to achieve the desired roll surface finish and dimensional accuracy. Common machining methods involve turning, milling, grinding, and so on. During the machining operation, it is necessary to select the appropriate tools and cutting parameters to guarantee both processing quality and efficiency.
Surface treatment represents one of the final steps in the production of mill rolls. It serves to enhance the wear resistance and corrosion resistance of the rolls. Common surface treatment methods include shot peening, carburizing and quenching, nitriding, etc. During the surface treatment process, precise control of the treatment temperature and time is crucial to ensure the quality and effectiveness of the treatment.
Since different steel mills have different requirements for the performance and specifications of rolls during the production process, HANI’s ability to customize rolls according to specific needs can greatly improve the production efficiency and product quality of steel mills.
Please provide design data for special processing requirements
If you want to find a trustworthy adamite rolls supplier with long-term cooperation, maybe you need to concern about as the following
1.Mill rolls equipment
The equipment plays an important role in the high-quality mill rolls. Types of equipment matters from the beginning to the finished products.
2.Quality Control of Mill Rolls
In the dynamic realm of metal rolling industries, from steel production to non – ferrous metal processing, mill rolls stand as the linchpin that holds the entire operation together. Their quality directly influences the output’s precision, surface integrity, and overall production efficiency. Thus, implementing a robust quality control system for mill rolls is not just a necessity but a strategic imperative for any rolling enterprise aiming for long – term success.
3. Technological Advancement of the manufacturer
A reliable manufacturer will focus on technological advancement for its long-lasting development. The advanced technology can guarantee the improvement of products. The best supplier not only can provide high-standard products but also is the steel solution provider. Before choosing the company you should ensure the manufacture has a professional team for advanced technology.
4. Delivery time and price of the company
Delivery time often is the main factor to choose the supplier. Delivery on-time is also the basis of next time cooperation. Checking out the place of the company and the delivery term is essential. Price is also an important element for a best-value mill roll manufacturer.
5. Mill Rolls Supplier Qualifications
Certifications & patents ensure HANI mill rolls quality, safety, and innovation, reducing production risks and long-term costs.
Established in 2007, HANI TECH primarily manufactures a comprehensive range of mill rolls tailored for diverse types of steel, bar, high-speed wire, and hot and cold plate and strip rolling mills.
The company spans an expansive area of 100,000 square meters, encompassing two fully equipped production lines for cast mill rolls and forged steel mill rolls, along with processing workshops, product research and development centers, testing centers, training centers, office buildings, and other essential supporting facilities. The factory boasts a picturesque environment.
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We would be happy to help and advise if you have any questions or inquiries.
