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Hot Rolling
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Hot Rolling

The technical team of SMG Group is skilled in seamless steel pipe production technology, and can supply high-quality related tube and pipe mills. At the same time, SMG Group is willing to provide customers with perfect after-sales service, in order to free customers from worries.

Hot Strip Mill

SMG Group intends to design and offer a comprehensive range of strip hot rolling production line which produces high quality and reliable hot strip. Our technical team specializes in customizing efficient and reliable hot strip rolling process solutions for our customers, covering the entire process from raw material handling to finished product production. Our professional team will provide the best production line design according to the needs and requirements of customers, and provide advanced strip mill equipment and mature technical support. We are committed to providing our customers with best-in-class hot rolling solutions to help them achieve productivity and cost optimization.



A hot rolled strip production line is a production line that specially produces hot strips or sheets. The hot strip mill process typically involves several stages, including melting and refining of raw materials, continuous casting of molten steel into slabs or billets, heating of slabs or billets to appropriate temperature by reheating furnace, hot rolling of heated slabs or billets into thin strips or sheets, and sometimes further processing such as pickling, annealing, and color coating. The production line is equipped with various machinery and equipment, including reheating furnaces, strip mills, cooling beds, and finishing lines. The finished hot strips can be used in a wide range of applications, including automotive manufacturing, construction, appliances, and packaging.



Hot strip production line refers to adopting hot rolling mills to produce thin, narrow, and long steel plate. Its width is generally 20mm-200mm. Strip is usually supplied in coils and its specifications are expressed as thickness x width. According to the quality of steel, it is divided into high quality and ordinary strip steel; According to the rolling method is divided into hot rolling and cold rolling strip. The thickness of ordinary hot rolled strip is 2mm - 6mm.



Medium & Heavy Plate Mill

SMG Group is good at providing comprehensive design and equipment supply services for production lines of hot rolled plate. Our team members are committed to delivering customized solutions meeting the specific needs of clients, covering the entire production process from raw material processing to the manufacturing of finished products.




The plate production line is a combination of plate mill equipment and machinery used to produce hot rolled steel sheets. This line typically includes processes such as raw material processing, reheating of slab or billet, hot rolling, cold rolling, galvanizing, cutting, and packaging. The plate hot rolling mill stands may vary depending on the manufacturer's needs and technological capabilities. The level of automation in steel plate production lines continues to increase to realize state-of-the-art. Steel plates are widely used in construction, machinery manufacturing, automotive manufacturing, and other fields.



Steel plate production process: steel plate production is based on flat steel billet as raw material, flat steel billet is heated to 1200°C by reheating furnace such as steel pusher furnaces or walking beam furnaces, and then rolled, cooled, levelled to shear (flame) cut into final products.


Bar Mill

SMG Group can independently supply comprehensive design and equipment supply services for complete bar or reinforcing bar production lines. Our technical team is dedicated to delivering customized bar rolling process tailored to the specific needs of our clients, covering the entire bar production process from raw material processing to the manufacturing of finished products. We prioritize customer satisfaction and strive to help our clients enhance productivity and optimize costs through our innovative solutions.



Bar/Rebar hot rolling production line is one kind of production line which uses bar/rebar mills to produce steel bars or reinforced steel bars. Bar rolling lines usually consist of multiple stands of hot rolling mills that can roll hot billets into bars of different specifications. The process flow and equipment characteristics of bar hot rolling line vary with different production lines. For example, the bar rolling line may adopt direct rolling of continuous casting billet, hot charging and hot delivery of continuous casting billet, surface detection of continuous casting billet, light/heavy pressure process of continuous casting billet, headless rolling, peeling rolling and other technologies.



The bar production line first heats the raw material using reheating furnace, plastic deformation is carried out after reaching a certain temperature, and the raw material is processed into the bar of the required shape and size by hot rolling, forging and other technological means.



Steel bar is a common material in the steel industry, due to its high strength, corrosion resistance, easy processing and other characteristics, it is widely used in various fields. First, bar can be used for mechanical manufacturing. For example, in cars, planes, trains and other vehicles, it is used to manufacture wheel shafts, support rods, transmission shafts, connecting rods and other components. In machine manufacturing, it can be used to manufacture gears, bearings, propellers and other parts. In addition, the bar can also be used to make a variety of tools, such as pliers, hammers, wrenches, etc.


Wire Rod Mill

SMG Group can independently supply mature design and high quality equipment supply services for complete wire rod mills. Our technical team is dedicated to delivering customized solutions tailored to the specific needs of our clients. We prioritize customer satisfaction and strive to help our clients realize high productivity and optimize costs through our project solutions.



The rolling production of wire rod refers to the rolling technology of producing wire rod by wire rod rolling mills. Wire rod rolling is a complex deformation process, and its main equipment is wire rod mills.



Wire rod mills are rolling mills specially used for rolling wire rod (i.e. wire). Wire rod is the product with the smallest section size in profiles, rolled from billet into finished products, the total extension coefficient is large, rolled pieces are often rolled once in each mill, so the wire rod mill is the hot rolled profiles in the largest number of racks, the most fine division of the mill. The continuous wire rod mill is generally composed of 21 to 28 rolling mills, which are divided into roughing mill units, intermediate mill units and finishing mill units, and the intermediate mill units are sometimes divided into one intermediate rolling and two intermediate rolling mill groups. The structure and layout of wire rod mill has been developing towards the direction of high speed wire rod, continuous, torsion-free, single wire, combined structure, mechanization and automation.



Wire rod refers to the steel rolled into a tray after hot rolling by the wire rod mill, generally in the diameter of 5.5-14mm. Wire rod is mainly used in construction and drawing steel wire and its products. Due to the need of manufacturing standard parts, many cold drawing billets directly use wire rod. Wire rod has the advantages of less drawing head, stronger continuity and higher drawing efficiency than straight rod.



The common wire rod is mostly round section, and the special-shaped wire has oval, square and threaded shape, etc., but the production quantity is small.

Section Mill

SMG Group specializes in providing comprehensive design and equipment supply services for section production lines. We are dedicated to delivering customized solutions tailored to the specific needs of our clients, covering the entire production process from raw material processing to the manufacturing of final products. Our team of experts is committed to offering top-notch design solutions and providing advanced equipment and technical support. We prioritize customer satisfaction and strive to help our clients enhance production efficiency and optimize costs.



A section steel production line is a production line which uses section mills to produce various types and specifications of section products. This production line typically includes processes such as raw material handling, pre-treatment, forming, cooling, cutting, and packaging. Section steel products are widely used in building structures, bridges, and mechanical manufacturing. Common types of steel include H-beams, I-beams, angle steel, and channel steel. These products play an important role in the construction and engineering industries.



The process flow of the section production line usually includes the steps of raw material preparation, melting, casting, forming, cooling, shaping and quality inspection. First, raw materials such as iron ore and other alloy materials are prepared and mixed. The mixture is then heated and melted before being poured into a mold for casting. After the cast steel is cooled, it is reshaped to achieve the required specifications and dimensions. Finally, the section steel is subjected to a strict quality inspection to ensure compliance with the standard. The whole process requires strict control of parameters such as temperature, pressure and speed to ensure that the quality and performance of the section steel meet the requirements.



Seamless Pipe Mill


Seamless pipe is perforated by the whole piece of round steel, and the steel tube with no weld seam on the surface is called seamless pipe.


The production method of seamless steel pipe is roughly divided into the diagonal rolling method (Mennesmann method) and the extrusion method. The diagonal rolling method (Mennesmann method) is to first perforate the tube embryo with a slanting roller and then extend it with a tube mill. This method has a fast production speed, but it has a high requirement for the machinability of the tube billet, which is mainly suitable for the production of carbon steel and low alloy steel pipes.



The seamless process of steel pipe is mainly accomplished by stretch reducing, which is a continuous rolling process of hollow base metal without mandrel. Under the condition of ensuring the welding quality of the master pipe, the welded pipe stretch reducing process is to heat the welded tube or pipe as a whole to more than 950 degrees Celsius, and then after the stretch reducing machine (a total of 24 passes of stretch reducing machine) into a variety of outer diameter and wall thickness of the finished pipe. The hot-rolled steel pipe produced by this process is essentially different from the ordinary high-frequency welded pipe. After heating by the reheating furnace, the metallographic structure and mechanical properties of the weld can be completely consistent with that of the parent pipe. In addition, the dimensional accuracy of the steel pipe (especially the roundness and wall thickness accuracy of the pipe) is better than that of similar hot rolled seamless pipes through the multi-pass stretch reducer rolling and automatic control.



The production equipment consists of piercing machine, automatic pipe mill, reeling machine, sizing machine and reducing machine. The production process of seamless steel pipes is divided into the following procedures: round tube billet → heating → piercing → three roll cross rolling, continuous rolling or squeezing → off pipe → sizing (reducing) → cooling → straightening → water pressure test (crack detection) → marking → warehousing.

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