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 work mill rolls to dozens of steel mills around the work 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!
Number | Steel grade | Technical conditions | C | Si | Mn | P | S | Cr | Ni | Mo | V | Nb | Cu |
1 | EBR21 | Special technical conditions | 0.50 0.60 | 0.10 0.30 | 1.0 1.50 | ≤ 0.025 | ≤ 0.020 | 1.50 2.50 | — | 0.40 0.60 | 0.04 0.10 | — | ≤ 0.15 |
2 | EBR32 （3%CrMoV） | EZB1867 -2012 | 0.40 0.50 | 0.40 0.70 | 0.50 0.70 | ≤ 0.025 | ≤ 0.025 | 3.00 3.50 | ≤ 0.60 | 0.30 0.60 | ≤ 0.15 | — | — |
Raw materials – crude water – ladle refining – pouring – ingot – forging – forging heat treatment – rough machining – preliminary heat treatment – surface quenching – finishing – finished product
Electric furnace smelting water – Ladle furnace vacuum refining – Vacuum pouring
Smelting
Electric furnace smelting and ladle furnace vacuum refining ensure the chemical composition of molten steel and improve the purity of molten steel.
The main tasks of electric furnace smelting are: melting steel materials, dephosphorization, and heating;
The main tasks of ladle furnace are: deoxidation, desulfurization, degassing, alloying, purifying molten steel, and adjusting temperature.
Main equipment: 60t electric arc furnace, 80t electric arc furnace, 40t, 150t ladle refining furnace.
Casting:
The vacuum casting method is used to reduce the gas content in the molten steel and prevent white spots and hydrogen embrittlement cracks in forgings.
Main equipment: 600t, 400t, 200t vacuum ingot casting chambers.
Pressing pliers handle – Main deformation of upsetting and drawing refining – Material division and forging of finished products
A large press is used to upset and elongate the steel ingots to achieve the shape and size of the forgings required by the process.
The main function is to reduce and eliminate the inherent defects in the steel ingots (cast structure, loose holes, etc.) as much as possible, and obtain a dense forging structure, so that the forgings have good mechanical properties and performance.
Main equipment: 160MN open forging hydraulic press, 125MN open forging hydraulic press.
Post-forging heat treatment: dehydrogenation, adjustment of forged structure, grain refinement, and ensuring ultrasonic flaw detection penetration.
Preparatory heat treatment: ensure the hardness of the roll neck and the mechanical properties of the matrix, and prepare the structure for surface quenching. During surface quenching, the transition between the roll body and the roll neck is cooled to ensure the hardness and strength of this part.
Surface quenching treatment: ensure the hardness, uniformity of hardness and depth of the hardened layer of the roll body. Surface quenching treatment is the most important process to ensure the hardness of the roll body of the support roll and determine the quality of the support roll. Equipment: Large horizontal differential temperature furnace
Serial number | Rolling mill model | Material | Unit weight (tons) | Quantity (pieces) |
1 | 5000 Wide and thick plates | Cr 2 | 226 | 6 |
2 | 5000 Wide and thick plates | Cr 2 | 226 | 6 |
3 | 5000 Wide and thick plates | Cr 2 | 201 | 4 |
4 | 5500 Wide and thick plates | Cr 2 | 226 | 1 |
5 | 5000 Wide and thick plates | Cr 2 | 226 | 4 |
6 | 4200 Wide and thick plates | Cr 2、Cr3 | 165 | 12 |
7 | 4200 Wide and thick plates | Cr 2、Cr3 | 165 | 6 |
8 | 4200 Wide and thick plates | Cr4 sleeve | 101.6 | 5 |
9 | 4300 Wide and thick plates | Cr 3 | 168 | 6 |
10 | 4300 Wide and thick plates | Cr 3 | 195.3 | 2 |
Serial number | Rolling mill model | Material | Unit weight (tons) | Quantity (pieces) |
11 | 5000 Wide and thick plates | Cr3 | 206.7 | 2 |
12 | 4300 Wide and thick plates | Cr3 | 168 | 1 |
13 | 4300 Wide and thick plates | Cr3 | 168 | 3 |
14 | 3800 Wide and thick plates | Cr3 | 151.4 | 12 |
15 | 3800 Wide and thick plates | Cr3 | 151.4 | 12 |
16 | 5000 Wide and thick plates | Cr2 | 225 | 1 |
17 | 5000 Wide and thick plates | Cr2 | 227.5 | 2 |
18 | 5000 Wide and thick plates | Cr2 | 227.5 | 2 |
Serial number | Rolling mill model | Material | Unit weight (tons) | Quantity (pieces) |
1 | 2800 Steckel | Cr3 | 100 | 4 |
2 | φ2000 | Cr3 | 108 | 2 |
3 | 3500 Medium and thick plates | Cr3 | 124 | 2 |
4 | 3500 Medium and thick plates | Cr3 | 122 | 8 |
5 | φ1700 | Cr3 | 70 | 6 |
6 | 2800 Medium and thick plates | Cr3 | 76 | 8 |
7 | 3000 Medium and thick plates | Cr3 | 80.995 | 8 |
8 | 3000 Medium and thick plates | Cr3 | 80 | 6 |
9 | 2800 Medium and thick plates | Cr3 | 75.35 | 2 |
10 | 3100 Medium and thick plates | Cr3 | 81 | 8 |
11 | 2800 Medium and thick plates | Cr3 | 76 | 2 |
12 | 3500 Medium and thick plates | Cr3 | 108 | 4 |
13 | 3000 Medium and thick plates | Cr3 | 82.5 | 2 |
Serial number | Rolling mill model | Material | Unit weight (tons) | Quantity (pieces) |
14 | 3500 Medium and thick plates | Cr3 | 129 | 2 |
15 | 3500 Medium and thick plates | Cr3 | 108 | 8 |
16 | 2800 Medium and thick plates | Cr3 | 100.715 | 4 |
17 | 3500 Medium and thick plates | Cr3 | 124 | 7 |
18 | 3800 Medium and thick plates | Cr3 | 129 | 1 |
19 | 2800 Medium and thick plates | Cr3 | 80 | 5 |
20 | 3500 Medium and thick plates | Cr3 | 122 | 12 |
21 | 3500 Medium and thick plates | Cr3 | 139 | 6 |
22 | 3500 Medium and thick plates | Cr3 | 115.5 | 1 |
23 | 3000 Medium and thick plates | Cr3 | 101.7 | 2 |
24 | 3500 Medium and thick plates | Cr3 | 131.3 | 6 |
25 | 3500 Medium and thick plates | Cr3 | 125.5 | 1 |
23 | 3500 Medium and thick plates | Cr3 | 138 | 6 |
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.
6.Customer cooperation visits and meetings
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.
