Wire Rod Mill | De-Bars Rolling Mill for Sale

Wire Rod/ De-Bars Rolling Mill for Sale

Continuous Rolling Mill


Wire Rod/De-bars Rolling Mill Capacity: 650.000 -800.000 TPY

Weight of equipment is about 3000 tons

Wire rod size: 5.5-23mm

Rebar in coil size : 6-8-10-12mm

Number of booths: 29

Number of shears: 5

Pinch rolls: 4

Water boxes: 8

Laying heads: 2

Column: 2x75m

Coil exit Morgan

2 Binder machines Healthy birch

Max. speed: 90m/sec

The Wire Rod Mill | De-Bars Rolling Mill is dismantled and packed in boxes ready for immediate shipment.


Free send inquiry to stella@hanrm.com if any needs.
Whatsapp/Wechat:+8615877652925
Website:  https://www.hanrm.com

More News You May Interesting:

Morgan Wire Rod Mill

Crank Type Flying Shear

Characteristics of Electric Arc Furnace Steelmaking

Why does the Steel Bar Bend after being Cut by Flying Shear?

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

Continuous Casting Machine

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Cardan Shaft Assembly and Routine Maintenance

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

Bar and Wire Rod Rolling Mill For Sale

Bar and Wire Rod Mill Production Line

50000-300000 tons of bar and wire rod mill production line, 8-32mm of full continuous rolling production line, is common carbon steel, excellent carbon structural steel and low alloy steel; the designed annual production capacity is 50000-300000 tons, and the large line speed of finishing mill is 5-16m / s.



1. Billets: 100 × 100 -- 150 × 150 continuous casting billets with a length of 3000mm -- 6000mm are provided by the internal steel-making and continuous casting workshop of the company.


2. A new regenerative pusher reheating furnace will be built for the whole continuous rolling mill production line. The fuel is blast furnace gas and the air will be preheated by single preheating. The hourly heating capacity is 40-80t / h, end in and side out, a single row of cloth, which can meet the requirements of 50000-300000 tons of rolling material per year. The inner chamber size of the reheating furnace is 6.6x24m.

3. 16 rolling mills are adopted, which are divided into roughing mill, intermediate mill and finishing mill, forming the whole continuous rolling production line, with the layout of 6 + 6 + 4 horizontal and vertical alternation, and the main drive of rolling mill is controlled by full digital PLC. Micro tension continuous rolling is adopted for rough rolling and medium rolling. There is one side looper in the middle of medium rolling and finishing rolling, and there is a vertical looper between each rolling mill of finishing the rolling unit, forming no tension and no torsion rolling. The high speed of the rolling mill can reach 5-16m / s.


4. Three flying shears are set on the rolling line, which is located behind the three units and is respectively used for cutting head, accident breaking and finished product multiple length sections. The structure of scissors is crank type, rotary type, and crank rotary combination.


5. Rolling process: round 6.5mm, threaded steel 8-32mm. The annual output of 50000-300000 tons of material requires 330000 tons of continuous casting slab, and the comprehensive yield is 98% (negative deviation is considered).

6. Controlled rolling water piercing cooling device is set in front of the finishing mill and a controlled cooling water piercing device is set behind the finishing mill to produce high-strength steel bars (grade III steel) and improve the mechanical properties of the products.



7. Semi-automatic packing equipment and 50t cold shear are used in the finishing collection area.



8. The control system adopts computer secondary control, which is divided into four areas (heating furnace area, rolling area, controlled cooling area, and finishing area), and each control point is controlled in a decentralized and centralized way.

Production Process and Product Structure

It adopts the international advanced equipment and advanced production technology: the heating furnace is a walking beam type, adopts the double regenerative high air temperature combustion technology of energy saving and environmental protection, and uses the blast furnace gas with low calorific value as fuel, which can greatly reduce the fuel consumption, with the characteristics of fast heating speed and good heating quality.



There are 18 rolling mills in the whole line. In order to ensure the dimensional accuracy of the products, 6 loopers are set in the finishing mill room, and the water-cooling device is set after finishing rolling, which can realize the torsion-free controlled rolling of the whole line. In the production of φ 10 ~ φ 16 threaded steel, three-section rolling is used; in the production of φ 18 ~ φ 22 threaded steel, two-section rolling technology is used. Among them, φ 22 two slitting rollings is a domestic innovation, and the family has this technology, and the slitting rolling capacity is at the first level in China. The main drive of the rolling line adopts the full digital control DC motor, which can realize the automatic operation of the whole line, and the large rolling speed can reach 18 m / s. The raw materials used are continuous casting billets, all supplied by hot delivery.

The main product specifications include national standard II, national standard III, British standard, Japanese standard, plus standard Φ 10 - Φ 40 straight thread steel and round steel of various specifications.


Production steel includes ordinary carbon structural steel, excellent carbon structural steel, low alloy steel, etc. All products are delivered in straight condition.


Please contact stella@hanrm.com for quotation.
And free send inquiry to us.
Whatsapp/Wechat:+8615877652925
Website: https://www.hanrm.com

More News You May Interesting:

Morgan Wire Rod Mill

Crank Type Flying Shear

Why does the Steel Bar Bend after being Cut by Flying Shear?

Technological Features of Continuous Billet Cater

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

600,000 TPY Rebar Rolling Mill | Section Mill for Sale

Mini-Metallurgical Plant and 600,000 TPY Rebar Rolling Mill | Section Mill for Sale

The Minimill plant is composed of Melting & Refining shop

FastArc TM AC 70 t tapped steel

Ladle Furnace LF 70 t

Single-tank/single-cover VD/VOD station

FTP for EAF & LF primary and secondary fumes.

Melt shop auxiliary facilities

Continuous Casting Plant: 

3-strand Danieli FastCast TM billet continuous casting machine

Rolling Mill:

80-t/h (or 100-t/h in hot charge) Bar and Light Section Mill
70-ton Ladle Furnace (12/14 MVA transformer).
70 ton VD/VOD station, single-tank, single-cover type.
Raw material handling/charging system for EAF,LF and VD
Fume Treatment Plant for primary and secondary fumes for EAF and LF E C B

The Meltshop:

  A -Arc EAF 70-ton tap weight (64/74 MVA transformer), 5.3-m shell dia, equipped with the latest generation of wall-mounted oxygen/carbon injectors. The casting of specialty and stainless steel ingots

  B -70 ton Ladle Furnace (12/14 MVA transformer).
  C -70 ton VD/VOD station, single-tank, single-cover type.
  D - Raw material handling/charging system for EAF, LF, and VD
  E - -Fume Treatment Plant for primary and secondary fumes for EAF and LF
  F - 3-strand, 9-m-radius FastCast Continuous Casting Machine, for high-speed casting of 130x130, 150x150,180x180-mm quality billets. Direct connection to the rolling mill reheating furnace, for hot-charging operation

PLANT CAPACITY: 500,000 tpy in cold-charge mode(*) Up to 600,000 tpy, in hot-charge mode

STARTING MATERIAL: Billet 150 x 150 x 12,000 mm
                                               180 x 180 x 12,000 mm Weight 2,000 kg and 3,000 kg

STEEL GRADES: Low carbon, concrete reinforcing, low/medium alloy steels

FINISHED PRODUCT:  Rounds (RB) from 16 to 50 mm dia
Deformed Bars (DB) from 10 to 40 mm dia, 4- strand slitting on DB 10, 12 mm dia 2- strand slitting on DB 14, 16 and 18 mm dia

Squares from 14 to 40mm, Flats from 30x6 to 80x25mm; Angles(equal) from 30x3 to 50x7mm; C profiles form 4 to 5

FINISHING SPEED: Up to 12 m/s

 PRODUCT TOLERANCES: According to Local and International Standards

FINISHED PRODUCT SUPPLY: Straight Bar Bundles Length 6,000 to 12,000 mm Weight 1,000 to 5,000 Kg
 (*) Yearly capacity based on a 3 daily shifts working schedule

Reheating furnace: Walking Hearth type capacity 80 t/h (or 100 tph in hot charge)

Roughing Mill: 8 AC driven ESS compact cantilever stands 820/685/585 mm dia in H and V configuration

Intermediate Mill: 6 AC driven SHS housingless stands 475 mm dia in H and V configuration.

Finishing Mill: 6 AC driven SHS housingless stands 430 mm dia in H, V and H/V convertible configuration equipped with automatic quick-changing system
In-line QTB treatment for high tensile deformed bars

Cooling Bed: Rake type Dimensions 54 x 13m equipped with a water spray system

Finishing Services: CLS on-line start&stop Straightening and Cut-to-Length system (multistrand straightener and shear), bundling service, final tying and collecting services

DANIELI AUTOMATION fully integrated system for process technology and equipment control

Please contact stella@hanrm.com for quotation.
And free send inquiry to us.
Whatsapp/Wechat:+8615877652925
Website: https://www.hanrm.com





More News You May Interesting:

Why does the Steel Bar Bend after being Cut by Flying Shear?

Morgan Wire Rod Mill

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Failure Analysis of Cold Mill Roll

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System


Rolling Mill Pass Design

60,000 TPY Rolling Mill for Sale

60,000 TPY Rolling Mill for Sale

1. General specification

1-1. Production capacity:      60,000 TPY

1-2. Material:                        Billet 150sq. 160sq. 150 x 180sq. etc.

1-3. Product type & size:       Chanel 100 x50 ~ 200 x 90

                                              I-Beam 150 x 75 ~ 200 x 100

                                              Angle  90 x90 ~ 130 x130

                                              Unequal angle 100 x 75 ~ 150 x 90

2. Equipment specification

2-1. Reheating furnace       Capacity-25TPH / Type-3-zone / Skid rail

2-2. Roughing mill(R0)   2H stand / Bearing type / PCD550ø / AC motor 600kw-3.3kv

                            / 1pass

2-3. Discaller 1,2             Plunger pump type 2sets / 100~130kg/cm²

2-4. Roughing mill(R1~R4)  3H stand-1,2,3 / 2H stand-4 / Fiber metal type / PCD465ø

 / AC1500kw-3.3kv / 10pass

2-5. Discaller3,4             Ejector pump type 2 sets / 200~250kg/cm²

2-6. Inter-mill(I0)        2Hstand / Bearing type / PCD500ø / AC1500kw / 3.3kv /1pass

2-7. Finishing mill             2H stand / Bearing type / universal type / PCD800ø

/ DC1000kw / 1 pass

2-8. Cooling bed              Rack type / L32m x W11m / run in / run out / take out

2-9. Straightener              Fix H type / AC150kw / roll

2-10. Cushion bed       Rack type / L32m x W4m

2-11. Cold saw            Fix.- Moving 2 sets 

2-12. Packing conveyor        Chain move conveyor

2-13. Stand Roll & Guide

2-14. Straightener roll

2-15. Electric capacity          5,500kw / 22.9kv

2-16. Electric panel         AC mill motor operating panel / DC mill motor driver

     /Control panel / MCC panel / Local panel / Operating desk

2-17. Water treatment          Pump / Operating panel

Free send inquiry to stella@hanrm.com if any needs.
Whatsapp/Wechat:+8615877652925
Website:  https://www.hanrm.com

More News You May Interesting:

Why does the Steel Bar Bend after being Cut by Flying Shear?

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Failure Analysis of Cold Mill Roll

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

Development of Wire Rod Mill

    At present, Asia is the fastest-growing economy in the world. However, China is the focus of Asia. Under such a rapid development situation, China's infrastructure has developed rapidly, and various types of wires have been in short supply. The original old-fashioned horizontal rolling mill and double-rolling mill are far from meeting the needs of today's market development in terms of accuracy and quality, as well as in terms of output and control level.

    Therefore, in the late 1960s, with the continuous improvement of the technical level, various new types of high-speed twistless finishing mills were developed in the world, and the wire weight was increased from tens of kilograms to two and a half tons. The final exit speed of the rolling is increased from the original 20m/s to 30m/s to the current 130m/s, and the finished product tolerance is ±011mm.

Due to the smooth surface quality of the wire, the head-to-tail tolerance value is small, and the metallographic structure is more uniform after the water-cooling and the loose-rolling control are cooled, so that the wire can be drawn without heat treatment, thereby greatly reducing the cost and receiving a large number of users. Praise and welcome.

At present, representative finishing mills include internal drive 45-degree wire rod mill, external mesh drive 45-degree finishing mill, X type 45 degree centralized drive finishing mill, Y type three-roll finishing mill, flat roll drive finishing mill, 75 degrees. ×15 degree concentrated transmission finishing mill six types.

Compared with the old-fashioned rolling mill, these rolling mills have the following characteristics:
1. Single-line continuous rolling, convenient and safe operation;
2. High rolling speed, currently up to 130m/s;
3. Convenient for changing rolls;
4. Convenient for changing guides;
5. High, low cost;
6. Wire rod tolerance is small, the surface is smooth;
7. Wire rod has high internal quality;
8. High level of automation control.

In recent years, China's wire rod mill equipment has developed very rapidly.

More News You May Interesting:

Why does the Steel Bar Bend after being Cut by Flying Shear?

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Failure Analysis of Cold Mill Roll

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

What is a Metal Drawing Machine?

Straight-in Wire Drawing Machine Applicable Standards

Wet Drawing Machine Transformation Process Requirements

Wet Wire Drawing Machine Working Principle

Automatic Control Analysis of Bar Continuous Rolling Flying Shear

Flying Shear Start Control

Before rolling, the engineer's station personnel passed the screen set to transfer the cut and cut the size of the flying shear to the PLC. When the HMD detects the steelhead or steel tail signal before the shear, the detection signal is sent to the PLC that controls the scissors, and the scissors PLC then according to the line speed of the rolling piece passed by the basic PLC, the last cut of the scissors The error, and the set length of the cutting head and the tail length, calculate the flying shear start delay time. When the delay time is up, the start command of the flying shear is issued immediately, and the cutting function of the flying shear is completed. For the shredding function of the scissors, the manual start control is adopted, and the operation table manually breaks according to the accident. The shredding function of the scissors takes precedence over the function of cutting and cutting.

Rolling Steel Simulation Analysis Function

When the hot test run is not set at the production site, in order to comprehensively evaluate the linkage effect of each device, it can be completed by cold adjustment; when it is judged whether the cascade blocking function is normal, it can be analyzed by the automatic control model; When it is reasonable, it can be operated in a targeted manner, which shortens the trial hot car time to some extent. At the same time, under the action of rolling steel simulation analysis function, online simulation analysis is realized, and through the continuous improvement of offline simulation function, it provides necessary reference information for the development of transmission inverter equipment program. When the PLC is connected correctly, all module performance can be tested in real-time.

Bar Speed Correction

The rolling speed of the bar is the basis for control and the key to controlling the accuracy of the cutting, so the estimation of the speed of the rolled bar is particularly important. When the calibration function is activated, the speed of the bar is corrected. The speed of the rolled material is generally calculated by the mill control system based on the roll diameter, roll profile and motor type, due to elastic strain and rolled material at the stand roll. The actual reduction on the amount, the calculated value may not be consistent with the actual value. The actual speed is estimated by measuring the elapsed time of the end of the bar from the HMD before the flying shear to the time after the HMD. Alternatively, the flying shear performs shearing, and the measurement starts from the interlacing of the blade to the cutting. The time at which the end reaches the HMD downstream of the flying shear. The ratio of the distance between the HMDs and the measured time gives an estimate of the average speed of a bar during operation. A speed calibration factor is obtained relative to the average of the speeds calculated by the mill control system at the same interval. The speed received from the mill control system becomes a speed calibration factor, thereby obtaining the best estimate of the actual speed of the bar during shearing.

Flying shear Zero Compensation Control

After the end of a cutting process, the flying shear must be accurately parked at the zero position to prepare for the next cut. The zero detection of the flying shear is calibrated by the proximity switch. However, in practice, there is a certain error in the stop position from the original zero points. The error must be compensated to ensure that the speed of the scissors is accelerated to the set shear speed within the specified distance to meet the shear torque requirement. For this purpose, the position of the cutting edge is detected using the positioning code dial. The code wheel adopts 2048 two-phase orthogonal pulse. Each rotation of one wheel, the code wheel count is 0-8192, corresponding to the cutting edge angle of 0-360 degrees so that the angle of the scissors from the zero position can be calculated by counting the pulse of the code wheel. By this value and the angle between the zero point and the shear point, the initial angle of the flying shear can be calculated. Since the code wheel can achieve high precision and can effectively suppress the counting error caused by the vibration, the next cutting edge can be accurately compensated for the next cutting edge error.

In summary, the application of the bar shear system, the main technical performance indicators such as shear accuracy, shear section quality, shear response speed and optimized shear reliability can meet the on-site process requirements, in the rolling mill room Under the premise of normal cascading relationship, stable rolling mill speed and normal operation of all detecting components, the absolute value of the positive and negative shear length of the shearing length generally does not exceed the maximum linear velocity (m/s) of the rolling line multiplied by 5 milliseconds. The application of the automation control system has improved the production level to a certain extent, which is an inevitable trend in future development.

More News You May Interesting:

Headless Welding Rolling Process

Bar Rolling Mills Water Cooling Technology

How to Improve the Thermal Efficiency of the Reheating Furnaces？

Causes of Surface Cracks in High-Speed Wire Rod Rolling Mill

What is Slit Rolling?

Failure Analysis of Cold Mill Roll

Causes and Solution of Steel Piling-up in High-speed Wire Rod Rolling Mills?

Bar Automatic Counting System

Rolling Mill Pass Design

What is Wire Rod Mill?

Wire Rod Mill Brief Introduction

Wire rod mill consists of roughing mill, intermediate rolling mill, and finishing rolling mill. Roughing mill, intermediate rolling mill and finishing mill are arranged in horizontal, semi-continuous and continuous forms. Continuous finishing mills include horizontal two-roll mill, horizontal-vertical alternating mill, 45-degree non-twist mill, and Y-type mill. A new type of closed roughing and an intermediate rolling mill with the alternating horizontal and vertical arrangement, cantilever non-torsional pre-finishing mill, super heavy top-crossing 45-degree non-torsional finishing mill should be adopted. Non-torsional rolling, tension-free and micro-tension rolling technology should be adopted throughout the line. Start-stop flying shears should be set before rough rolling, medium rolling and finishing rolling to ensure that the rolling speed is not less than 100 m/s and the maximum coil is reached. The single weight is not less than 1.8T. Water cooling devices are installed in front of the finishing mill, between the stands of the finishing mill and behind the finishing mill. Temperature control rolling and cooling control are carried out. Precision rolling is carried out by the sizing and reducing mill, and on-line diameter gauge and flaw detector are equipped. In the production of high-speed wire rod mill, the key equipment of rolling wire into coils for collection is adopted. The speed of the new laying head is over 100 m/s.

The length of roll air-cooled transport line with large air volume delay is not less than 90 M. The direction of the blower and air volume can be adjusted automatically. There are several drops in the air-cooled line for uniform cooling. Walking beam reheating furnace is used as the heating furnace for wire rod mill. It has the functions of automatic steel burning and optimum combustion control. High-pressure water descaling device is installed in front of the rolling mill, and the pressure is not less than 18 MPa. In addition, there are perfect collection and transportation systems, such as automatic volume collection, transportation, bundling, weighing and so on. The main drive motor of wire rod mill is fully digital AC variable frequency speed regulation.

Intermediate Mill

The function of the intermediate mill is to connect the preceding and the following. It can not only produce the finished wire rod with large diameter but also adjust the cross-section size of the rolled piece entering the finishing mill to ensure the stable rolling of the finishing mill. The layout forms of intermediate rolling mills are horizontal, double and continuous, while the continuous layout is divided into two forms: full continuous rolling and semi-continuous rolling. In addition to full continuous rolling, the rolling stock generally forms more than one looper during rolling to facilitate the adjustment. The intermediate mill can be a two-high horizontal mill, a horizontal-vertical alternating arrangement mill, and a Y-type mill. Generally, the length of the looper is controlled by photoelectricity. When the looper is lifted from the lower sleeve, the length of looper can also be controlled by the principle of capacitance or inductance. Flying shears are usually set up between intermediate rolling mill and finishing mill for cutting head and accident shearing.

Roughing Mill

The roughing mill acts as a blanking machine, often using several layout forms, such as horizontal, sequential and continuous. Roughing mills with continuous layout are mostly composed of 6-8 two-roll horizontal mills, which are arranged at the exit of the heating furnace, and twisting rolls are used to turn over steel between the stand. A distributor and a counting device are arranged at the entrance of the roughing mill to realize multi-channel rolling. Flying shears are installed at the exit to remove the splitters that may occur after rolling, to prevent the steel jamming accident when entering the next unit, and to cut the rolling piece continuously when production failure occurs in the next unit. The production of alloy steel or small-batch, multi-variety ordinary steel workshop, sometimes also uses Y-type rolling mill to form a rough rolling unit. At this time, there is no need to twist the steel between the frames, and the blank size used is also flexible, but only can roll a rolled piece.

Finishing Mill

The function of finishing mill is to ensure the production of qualified products. The layout forms are double-double finishing mill, semi-continuous rolling, and full-continuous rolling. Full tandem rolling is divided into the full horizontal mill, horizontal-vertical alternating mill, Y-type finishing mill, and 45-degree finishing mills. There are many double lines finishing mills for wire rod mills in China. They are driven by AC motors in groups and rolled by multi-groove parallel rolling with the enclosure. When rolling, the rolled parts are twisted and tipped. The rolling speed is more than 15-20 m/s and the weight of the disc is less than 160 kg.

The semi-continuous rolling is a two-roll horizontal rolling mill. The rolling operation is carried out in 1~2 trough by parallel operation and twisting steel. The rolling speed is generally about 25~30m/s. Such rolling mills generally use prestressed rolling mills and rolling bearings. The precision of the rolled products is high, the DC motor is used for transmission, and the loops are provided between the racks. Therefore, the adjustment is convenient and the production is flexible. The intermediate frames can be rolled out of different specifications and are suitable for small batches and varieties of wires produce. Horizontal full tandem rolling is a collective transmission, multi-wire rolling, rolling speed is 20-30 m/s; The vertical and horizontal roller mills are arranged alternately by the cantilever type vertical roll and horizontal roll mill. The rolling speed can reach about 35m/s and the weight of the disc can reach 800kg. The rolling speed of Y-type finishing mill can reach 50m/s.

Wire Rod Mill Types and Wire Rod Mill Layout

The production of wire rod is mainly continuous, and the number of rolling mills for the wire rod mill is generally large, which can be divided into roughing rolling, intermediate rolling mill, and finishing mills. Wire rod mill has gone through the development process from horizontal, semi-continuous, continuous to the high-speed rolling mill. Every new type of mill and every new production line arrangement has improved the rolling speed, rolling quality and caries weight of wire rod. High-speed non-twist finishing mill and controlled cooling equipment are used in wire rod production, marking the salivation of a new generation of wire rod mill. The following figure is a sketch of the layout of a Morgan type high-speed wire rod mill in a foreign factory.

The reheating furnace is a roller side-loading side-out walking beam type reheating furnace. The whole wire rod mill line consists of 6 roughing mills, 8 intermediate rolling mills, 4 pre-finishing mills, 8 finishing mills and 4 reducing and sizing mills. The small extension precision rolling is realized. The roughing mill, intermediate mill, and pre-finishing mill stands are arranged in a flat-upright arrangement, which is a double fulcrum, a long roll body, and a porous compact frame, and the rolling mill is a lower drive. The pre-finishing mill is a compact cantilever roll-ring stand with the alternating horizontal and vertical arrangement. Tungsten carbide roll-ring and roll gap are symmetrically adjusted by the eccentric sleeve. Finishing mill and reducing and sizing mill are top-crossing 45 degree super heavy non-twisting mill. Micro tension or looper control is used between the rolling mill racks.

More Articles You May Interesting:

What is a Metal Drawing Machine?

Straight-in Wire Drawing Machine Applicable Standards

Wet Drawing Machine Transformation Process Requirements

Wet Wire Drawing Machine Working Principle

What is a Drawing Machine?

Wire Drawing Dies Application

Wire Drawing Technology

High Speed Wet Wire Drawing Machine Operation Steps

Advantages of Inverted Wire Drawing Machine

Wire Drawing Machine Structure Device

Copper Wire Drawing Machine Production Process

Six Types Wire Drawing Machines

Advantages of Hot Rolling Mill

Advantages of Hot Rolling Mills

According to the hot rolling mill manufacturer, the rolling mill is indispensable equipment in modern metal rolling, and we can use two different methods. For example, you can choose hot rolling or cold rolling. Obviously, the two methods are relative.

In fact, what we mean by hot rolling is mainly a process in which rolling is completed above the recrystallization temperature. Roll mill professional manufacturers believe that the use of hot rolling can enjoy some benefits, then, do you know the main advantages of which? Let's take a look at the main content of this aspect.

The mill manufacturer explained that the advantages of the hot rolling mill can be summarized into three aspects. First, the use of hot rolling can significantly reduce energy consumption and reduce costs. In addition, high-metal plasticity can be exerted during hot rolling, and the deformation resistance generated is small, and the metal can be effectively prevented from being severely deformed.

According to the rolling mill manufacturer, the second advantage of using hot rolling is that it can properly improve the processing performance of metals and alloy materials. That is to say, it can crush larger crystal grains and reduce the occurrence of cracks, which is equivalent to reducing defects in the casting process and improving the processing properties of the alloy.

The last advantage is that the hot rolling process is more conducive to continuous and automated. The rolling mill professional manufacturer explained that in this process, we generally use large ingots to reduce the amount of rolling, so it can also improve the efficiency of the work while creating favorable conditions for increasing the rolling speed.

The above is the main advantage of the use of hot rolling by the rolling mill professional manufacturers. I believe that everyone has a clear understanding of this content.

Purchasing Rolling Mill Equipment Quality Priority

Priority Should be Given to Quality When Purchasing Rolling Mill Equipment

Such important processing equipment as rolling mill must be carefully considered when purchasing. Of course, many users will pay more attention to the price first, but also need to consider the quality of the equipment as much as possible.If conditions permit, it is best to visit the rolling mill manufacturer for consideration, so as to see the manufacturing technology of the equipment manufacturer, and also to ensure that the equipment purchased can be put into use after installation.

In fact, when selecting and purchasing rolling mills, the quality and performance of the equipment should be considered first. Because of the quality is not guaranteed, there may be a lot of unnecessary troubles in the later use period, and even may lead to unusable, so we need to give priority to the quality of products, and then choose.

At the same time, the selected new mill also needs to comply with the relevant requirements when it is installed. There are many differences between different rolling mills, so it is necessary to carefully read the instructions for the use and installation of the equipment when installing.Especially when the electronic control system is installed, special attention should be paid to it. Because of the long process layout of rolling line, the requirements of the mutual elevation difference and centerline between the equipment are stricter.

In addition, in the installation operation, it is necessary to select the appropriate installation location. If equipment on rolling line is installed on soft ground, the uneven settlement and displacement of equipments need to be taken into account. This is also the reason why the equipments need to bury the settlement observation points on the basis of central benchmark, datum point, and rolling mill before installation, and make regular measurements. Only when the settlement and displacement become stable can the equipment be adjusted accurately.

In addition, in the work of rolling mill, due to the heavy load, special attention should be paid to the selection of suitable roller bearings. Usually, the mechanical properties of hot rolling mills are better than those of rolling mills, and the properties of steel products are naturally better.

Continuous Rolling Mill

Continuous Rolling Mill

The main working principle of continuous rolling mill is that when the billet is heated and discharged from the furnace, the oxidized iron sheet is removed by high-pressure water, and then the billet is processed in a four-roll reversible roughing mill. Finally, the intermediate billet which we need and suitable for continuous rolling mill is rolled. In the process of billet opening, the vertical roll can effectively ensure the precise width of the steel plate and the intermediate billet. After shearing, it will directly enter the continuous rolling mill to wait for processing and can be rolled to the specifications required by customers at one time. After rolling, the coiler will take up the coil. In the process of rolling, the roughing and finishing mill needs high-pressure water for secondary dephosphorization.

Introduction of Four-roll Continuous Rolling Mill:

Main Uses: This kind of mill is a one-way and irreversible four-high cold rolling mill. It is mainly used for rolling stainless steel, aluminum, carbon steel, copper and zinc, and other metals.

Main Features and Structures: The main components of this rolling mill are reducer, motor, universal joint shaft, human gearbox, stand, pressing part, electronic control cabinet, and roll system. The roll system uses special bearings for continuous rolling mill. The material of roll is 9Cr2Mo. If it is a large mill bearing base, it will also have a roll changing device.

What are the Different Types of Rolling Mills?

What are the Different Types of Rolling Mills?

The rolling mill is mainly a kind of equipment for rolling metals. It can not only arrange according to the parts rolls but also differentiate according to the main arrangement of the stand. The main product classifications are as follows:

1. First, two-roll mill, the biggest feature of this mill is very simple in structure and has a wide range of uses. It can be divided into reversible or irreversible type. Reversible type mainly includes blooming mill, plate mill, and rail beam mill. The irreversible rolling mill can be divided into laminated thin plate rolling mill, strip rolling mill, continuous slab rolling mill and thin plate rolling mill. If classified according to this form, there are four-roll mill, six-roll mill, three-roll mill, and five-roll mill.

2. Planetary rolling mill mainly uses two large-diameter supporting rolls to drive two sets of planetary roll systems. Whether flat ingots or slabs, they can be directly rolled into thin strips at one time. If continuous caster can be directly used in the front process and temper mill is used in the back process, the production process of hot strip steel can be effectively simplified. 

3. Universal rolling mill is mainly composed of vertical roll and flat roll, and all its accessories are basically driven by power, so it can be used in slab or flat steel rolling for many times.