BOYA produces slender rolls such as smooth roll (can be chromed), spiral roll (can be chromed), and concave roll. There are more than 10 kinds of rolling mill rolls we can manufacture. The highest surface hardness of work aluminium roller and intermediate rolls we manufactured is HRC65, with a length between 607-3960 mm and diameter between ∮16-400 mm. the biggest hollow roll we produced now is ∮ 600 mm. BOYA uses special work roll material to produce sheet metal roller used in tension leveler of pickling line. These work roll are applied to many industrial giant and their working performance is as good as the original. <br> <br>Details of Work Roll <br> <br>In steel rolling, the work roll service is in direct contact with the strip to produce deformation and finally get the roller of the product. The active roll driven by the motor is the work roll. In the manufacture of thin sheet metal roll, the metallurgical quality of the sheet metal roller design should be strictly controlled or supplemented by external measures to enhance the bearing capacity of the roll. Reasonable roll shape, hole shape, deformation system and rolling conditions can also reduce the working load of rolls, avoid local peak stress and prolong work roll chock life. The consumption of work roll depends on three factors: <br> <br>Rolling mill, material and rolling condition, and the reasonable choice of roll; <br>Work roll material and manufacturing quality; <br>Roll use and maintenance system. <br> <br>There are many sheet metal roller manufacturers, but we are one of the best choices for you. <br> <br>For more information about sheet metal coil processing and tension leveller, please feel free to contact us! <br>#sheet#metal#roller#suppliers <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Fwork-roll%2F[/a]

Tension leveler is one of the most advantageous product of BOYA, BOYA has deep research in leveling theory, tension control and so on, and is used in much patent technology. BOYA tension leveling line has the characteristics of high speed and a good straightening effect. At the same time, the tension leveling line applies many intelligent manufacturing technologies. The speed of tension leveler can reach 600m/min, highly intelligent, and it can be set according to different specifications of raw materials, tension leveler parameters adjustment characteristics. <br> <br>Details of Tension Leveling Line <br>The characteristic of method for setting process parameters of tension leveling unit is that the finite element software was used to establish a simulation model, and then the principle of stepwise regression was used to set the process parameters such as the insertion depth and tension value of 1#roll,2#roll,3#roll of the tension leveling machine, and established a system of tension. The process parameter setting method of the leveling machine is optimized in combination with the application effect of actual production. It can eliminate the wave shape and wrapping plate shape defects that are easy to appear in the production of thin stainless steel strip, and provides theoretical guidance in order to support for strip tension and leveling then it improves the quality of strip. In the meantime, it can make the production more scientific and systematic, which solve the problem of lacking the experience and the difference of process parameter. <br> <br>For more information about stainless steel coil processing, please feel free to contact us! <br>#Tension#leveling#line <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Ftension-leveling-line%2F[/a]

Based on BOYA&#039;s excellent processing and manufacturing capacity and rich series of products, we have a complete set of fine blanking equipment for the production line. Including main machine system, feeding system, uncoiler leveling equipment, blanking line press, parts conveying sorting device, die changing device, waste scrap cutting device, and part of the supporting equipment can be adjusted according to customer needs, the equipment structure is more flexible. At the same time, this auxiliary equipment and the host system synchronous matching, linkage control, significantly enhance the production stability and equipment safety. It not only comprehensively improves the performance of fine blanking machine but also realizes the comprehensive integration of digital production control systems. <br> <br>Application of Fine Blanking Line <br> <br> <br>Relying on the technological advantages accumulated in the metallurgical production line, integrated innovation, the automatic control technology in the metallurgical field is introduced into the production of fine blanking products, making the series of fine blanking production lines developed by BOYA more automatic, high efficiency, high quality, providing system solutions in the field of fine blanking. <br> <br>Advantage of Fine Blanking Line <br> <br>Provide one-stop fine blanking system solution <br> <br>Online testing platform for fine blanking <br> <br>Highly automated production line control <br> <br>Formula management system and MES system platform <br> <br>For more information about metallurgical equipment and ctl machine, please feel free to contact us! <br>#blanking#line#press <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Ffine-blanking-line%2F%0A[/a]

BOYA fine blanking production division, the products are good stability and reliability, high degree of automation, high production efficiency, simple operation and ergonomic. For localization of high-end intelligent fine blanking equipment, raise the capacity of fine blanking production, After years of research and development, design and manufacturing, 320 tons, 630 tons, 700 tons of hydraulic fine blanking machines have been successful production and operation. <br> <br>Types of Fine Blanking <br> <br>Fine Blanking Line <br>Based on BOYA&#039;s excellent processing and manufacturing capacity and rich series of products, we have a complete set of fine blanking equipment for the fine blanking production line. <br> <br>Fine Blanking Machine <br>BOYA series CNC hydraulic fine blanking machine developed by BOYA is high-end automation equipment with advanced technology, simple use, precision and independent intellectual property rights. <br>Read More <br> <br>Blanking Machine Refabrication and Maintenance <br>BOYA not only provides a full set of fine blanking production line equipment but also our technical team to provide comprehensive technical support and training services. <br> <br>What is Fine Blanking? <br>Precision blanking. Including strong blanking precision blanking, precision blanking to concave die and flat blanking precision blanking. Automotive precision punching parts production to strong blanking precision blanking. The geometric shape, dimensional tolerance, shape and position tolerance and shear surface quality of fine blanking parts are much higher than ordinary blanking parts, fine blanking process plays a great role in the field of automotive parts manufacturing. <br> <br>Working Principle of Fine Blanking <br> <br>Compared to normal blanking, fine blanking operation is more precious, product high precision requirements, no collapse Angle, no burr, the full bright belt is the difficulty of stamping process, the use of ordinary blanking process cannot avoid burr, collapse angle. <br> <br>Fine blanking technology is a special method to solve this kind of product. <br> <br>Fine Blanking Advantages <br>Fine blanking china is a kind of chipping-free processing technology, which is a precision blanking method developed from the general blanking technology. Fine blanking ensures that the punched surface of the punched part is free of cracks and tears over its entire material thickness. In addition, the tightest dimensional accuracy and flatness tolerances can be achieved. Fine blanking is able to obtain high quality fine blanked parts with higher dimensional accuracy, cleaner blanking surface, less warpage and better interchangeability than normal blanked parts in one punching stroke, and to achieve improved product quality at a lower cost. <br> <br>Fine Blanking Process <br>There is a fundamental difference between the process characteristics of fine blanking and normal blanking. While normal blanking controls the tearing of the sheet during the blanking process, fine blanking does everything possible to inhibit the tearing of the sheet during the blanking process. Fine blanking design remains as one piece until the part is separated from the sheet, and the sheet metal is always in a plastic deformation process during fine blanking. To achieve this, the V-rim and counterpress are used to hold the sheet before punching to prevent the sheet from moving inside or outside during the punching process. In addition, together with the small gap between the convex and concave dies and the appropriate small rounded corners of the concave die, a three-way compressive stress state in the local area of the punching is formed during the punching process, thus ensuring the plastic deformation process of the punching. Moreover, the fine blanking material and lubrication state also have a great influence on the effect of fine blanking operation. The material with good plasticity, low deformation resistance, complete spheroidization, good dispersion and uniform distribution of fine spherical carbide organization is most suitable for fine blanking. A good lubricant not only improves the quality of the fine blanked parts, but also helps to reduce the wear of the die and improve the service life of the die. The fine blanking process requires precise punching force, crimping force and counter pressure of the fine blanking equipment. <br> <br>Fine Blanking Applications <br>Fine blanking technology can be applied to various applications such as automobile, motorcycle, computer, video recorder, communication equipment, aircraft manufacturing, home appliances, office machinery, optical components, and construction industry etc. There are nearly 8000 kinds of parts produced by fine blanking, about 50%~60% of fine blanking parts are used in automobile industry, such as rack, tooth plate, cam on seat adjuster; ratchet, pawl, adjusting tooth plate, pull arm, push rod, web, support plate, etc. in brake system; lock plate, card plate, safety block, etc. in car lock; latch, inner gear ring, pawl, etc. in seat belt; follower plate, etc. in clutch; transmission Fork, etc.; transmission system flange, thrust gasket, etc.; door glass lifter gear plate, etc. Many of the stamped parts on these automobiles are produced by the fine blanking process. Boya is one of the leading fine blanking companies and fine blanking suppliers in China and we can offer a complete fine blanking services and solutions to our customers. <br> <br>Fine Blanking VS Stamping <br>Fine blanking originated from general stamping, but it is not simply an enhanced version of general stamping. The essential difference between the fine blanking process and the general blanking process is that the general blanking cannot effectively avoid the generation of tears in the section when punching, while the fine blanking tries to inhibit the occurrence of tears in the sheet material by all means when punching. The following are the differences between fine blanking and general stamping. <br> <br>1. Difference in requirements of materials to be processed <br>Ordinary stamping can process almost any material, as long as the die steel is strong enough and the press pressure is sufficient. <br> <br>However, the materials used for fine blanking require good plasticity, low flexural strength ratio and high elongation of the material to be processed because of the need to effectively transfer compressive stress between material crystals to inhibit cracking. <br> <br>2. Differences in processing capacity characteristics <br>General punching limit size <br> <br>Stamping: Minimum hole diameter of 1.5 times the material thickness. <br> <br>Fine blanking: minimum hole diameter up to 0.6 times the material thickness. <br> <br>Dimensional accuracy <br> <br>Stamping: Normal dimensional accuracy, IT14. <br> <br>Fine blanking: High dimensional accuracy, IT6~9. <br> <br>Cold work hardening <br> <br>Stamping: partial cold work hardening of section collapse and bright zone. <br> <br>Fine blanking: cold hardening of the whole section, which can improve the strength of the contact surface. 4. <br> <br>3. Difference in equipment used <br>Ordinary stamping equipment generally provides one-way power (there are also double power presses to process special-shaped products), i.e. punching force. However, fine blanking operation machines can provide three power forces, punching force, crimping force and counter-top force. And the fine blanking press is compact and has a small table surface. The table length of fine blanking machines of about 800T is generally about 1m. Of course, like ordinary stamping machines, fine blanking machines also need other supporting auxiliary equipment. The necessary auxiliary systems for general fine blanking machines are uncoiling and leveling feeder, die lubrication system and parts waste separation system. <br> <br>For more information about coil processing lines and cut to length machine, please feel free to contact us! <br>#fine#blanking#design <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Ffine-blanking%2F%0A%0A%0A%0A%0A%0A%0A[/a]

Drum flying shear in rolling mill <br>Drum flying shear cutting machine are used at the exit of various continuous cold rolling mills for strips to realize dynamic sub-coiling. During the shearing process, the upper and lower drums of the flying shear machine make circular motions, and the shear blades installed in the drums perform shearing motion with the rotation of the drums to cut the strip. The flying shear can automatically or manually adjust the side clearance of the cutting blade through the adjustment device to meet the cutting needs of different specifications of strip steel. <br> <br>Application Scope of Drum Fly Shear for Cold Rolling Mill <br> <br>This type of drum flying shear is suitable for pickling mill combined group, full continuous cold rolling group, used for dynamic slitting of strip steel, and also used for strip head and tail cutting, according to the set coil weight, and according to the set length Cut to length and accident cutting. <br> <br>Material Strip thickness Strip width Tensile strength Shear rate <br>carbon steel, stainless steel 0.1-3.0mm 500-1600mm ≤850MPa ≤260m/min <br> <br>Structure Advantage of Drum Fly Shear for Cold Rolling Mill <br> <br>Roller-type shearing blade arrangement and helical gear anti-backlash mechanism at the same time can greatly improve the accuracy and stability of the equipment. <br> <br>According to the technological requirements, the cutters can be arranged with single or double cutting edges and straight cutting edges or oblique cutting edges. <br> <br>According to different strip thickness and strength, the cutting blade gap can be adjusted automatically or manually to improve the cutting quality and tool life. <br> <br>Electromechanical and hydraulic control integrated products, equipped with reliable Siemens control system and optimized process adjustment template, can effectively ensure stable product quality. <br> <br>For more information about stainless steel coil processing and cut to length machine, please feel free to contact us! <br>#flying#shear#cutting#machine <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Fdrum-fly-shear-for-cold-rolling-mill%2F%0A%0A%0A%0A[/a]

The main CV joint bearing is ball cage type, designed and developed BJ, BHJ, BJS, BC, DOJ five categories, compared to NTN, the model specification is more complete, for different fields, use conditions, almost all can choose the appropriate coupling. In the field of vehicles, unlike NTN&#039;s route to the main engine, BOYA Drive Shaft focuses on the field of special vehicles, with larger model specifications and the ability to adapt to greater torque carrying capacity, resulting in outstanding competitive advantages in the field. <br> <br>BJ, BHJ, BJS, BC, DOJ CV Joint Bearing Comparison <br> <br>Type Application Tilt angle Expansion Connection mode Advantage <br>BJ Mainly used in metallurgical production equipment, non-ferrous industry, all kinds of large angle, high precision, high speed transmission 14°-38° There are two types,  channel expansion and spline shaft expansion, the first one is small expansion, it plays a convenient installation and disassembly function, the secone can be customized different expansion according to customer needs and working environment.  All kinds of connection methods can be customized according to customer needs, such as shaft and sleeve connection, flange connection, all kinds of quick change joints, insulation joints, etc Compact structure, suitable for limited space and large torque occasions; Intermediate shaft can be used for high speed occasions after counterweight; Good sealing, can be maintained for a long time without adding grease; Ball cage channel contact surface machining accuracy is high, the service life is better than other couplings on the market <br>BHJ It is mainly used for the transmission of turntable, winch, mud pump, reduction box, hydraulic coupler, workover machine, etc., and the transmission of rolling mill and leveler machine in metallurgical production equipment 8°-16° There are two types,  channel expansion and spline shaft expansion, the first one is small expansion, it plays a convenient installation and disassembly function, the secone can be customized different expansion according to customer needs and working environment.  Various connection methods can be customized according to customer needs The bearing torque is large, the dynamic balance precision is high, and the axial compensation is large <br>BJS Mainly used in metallurgy, heavy equipment, mining, lifting, transportation machinery and other industries of short distance, small angle, high speed power transmission 0°-5° The expansion capacity can reach ±10, which fully meets the expansion needs of daily installation and disassembly connection between shaft and shaft sleeve The product has the advantages of smooth operation, compact structure, high bearing capacity, large angular compensation, generally up to 5°, strong field operation adaptability, and convenient installation and adjustment <br>BC It is mainly used for transmission with short distance between two shaft ends and small angle between shafts, such as furnace roll transmission in metallurgical industry. 0°~5° The expansion capacity can reach ±10, which fully meets the expansion needs of daily installation and disassembly connection between shaft and shaft sleeve, flange Compact structure, it can be used for ultra-short distance transmission, while a certain length compensation, easy disassembly <br>DOJ Mainly used in metallurgical production equipment transmission, such as transmission of continuous annealling unit and pickling unit  0°~20° Channel expansion, it can be adjusted according to customer needs mostly flange connection Large tilt, easy to disassemble and replace <br> <br> <br>Applications of BOYA Custom CV Joints <br> <br>In the field of metallurgy, BOYA company has developed and applied high speed, heavy load, and large angle ball cage drive shafts with a comprehensive selection of models and specifications, such as BJ type drive shafts for the drive equipment of pinch rolls, deflection rolls, live sleeves, tension rolls, degreasing rolls, scrubbing rolls, sealing rolls and squeezing rolls in various production lines in ferrous metallurgy, and BHJ type drive shafts for the main drive of mills in non-ferrous metallurgy, all of which are widely used and occupy a major market share in China. The BHJ type drive shafts are widely used in the main drive of rolling mills in non-ferrous metallurgy and occupy a major market share. The ball cage type drive shafts are significantly better than the cross shaft type in terms of life, rotational accuracy, and adaptability to high speeds at approximately the same rotary diameter. Compared to long shaft drum tooth drive shafts, ball cage drive shafts can adapt to greater angles of use and impact loads; compared to short drum tooth couplings, BOYA has developed the BJS type ball cage drive shaft, which has a greater angle of application and expansion than the drum tooth type, simplifying installation and adjustment. As the ball cage technology is later than the cross shaft type and drum tooth type, the product technology is more advanced and the competitive advantage is outstanding, it is gradually expanding the application area and the market share continues to climb. <br> <br>Boya company, as an excellent tension leveler manufacturer, offers a wide range of sheet metal coil processing for you to choose from. <br>#cv#joint <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Fcv-joint-for-steel-and-non-ferrous-metal-industries%2F%0A[/a]

BOYA steel cut to length machine is often used in steel rolling production line. In the continuous rolling billet workshop or small section workshop, it is placed at the end of the rolling line to cut the rolled pieces into fixed length or only the head or end of cutting part. In cold and hot rolling workshops there are various types of flying shears used in the horizontal shear unit, heavy shear unit, galvanizing unit and tin plating unit, which cut the strip into a fixed size or cut into a specified weight coil. <br> <br>BOYA cross-cutting shear is advanced, high precision, greatly promote customer production to high-speed and continuous development. <br> <br>What&#039;s Cut to Length Shear? <br> <br>Cut to length shear is a Horizontal shear machine used for unwinding, leveling, sizing, cutting into the required length of flat sheet and stacking. <br> <br>Suitable for processing cold rolled and hot rolled carbon steel, silicon steel, tinplate, stainless steel and coated metal materials. According to the application, BOYA equipment can be classified as silicon steel transverse shear line (transformer core transverse shear line), stainless steel transverse shear line, copper foil aluminum foil transverse shear line, cardboard transverse shear line and so on. According to its electronic control type can be classfied into CNC transverse shear line, pneumatic transverse shear line and so on. <br> <br>Types of metal cut to length machine <br> <br>Drum Fly Shear for Cold Rolling Mill <br>Drum flying shears are used at the exit of various continuous cold rolling mills for strips to realize dynamic sub-coiling. During the shearing process, the upper and lower drums of the flying shears make circular motions, and the shear blades installed in the drums perform shearing motion with the rotation of the drums to cut the strip. The flying shear can automatically or manually adjust the side clearance of the cutting blade through the adjustment device to meet the cutting needs of different specifications of strip steel. <br> <br>Hydraulic Shear <br>The hydraulic shear produced by BOYA Company is widely used in steel, stainless steel, and aluminum plate production lines to cut the head and tail, which is convenient for belt threading, and reduces the damage to the equipment and rollers caused by the head and tail. The sample tape can be cut and tested, at the same time. <br> <br>Cut to length machine for sale during High Speed Cut Blade Temperature Impact <br>Based on the pursuit of coil automatic cut to length machines efficiency, we need to increase the shear speed and reduce cutting time. However, while increasing the shear speed, the working temperature of the ctl machine blade rises, the force is large, causing the blade to accelerate wear. On the other hand, the blade is affected by the heat expansion, and further affects shear quality. <br> <br>In the initial stage of the shear, the overall temperature of the cut to length machine is raised. As coil metal processing machinery shear is stable, the blade is in contact with the strip, the high-temperature area is increased, and the remainder temperature is slightly reduced; after shear enters the steady-state, the blade edge temperature Although it increases, the increase is gradually reduced until it is stable in a constant temperature. <br> <br>For more information about cut to length machine price and cut to length machine videos, please feel free to contact us! <br> <br>There are many cut to length machine manufacturers, but we are one of the best choices for you. <br> <br>Boya company, as an excellent flat rolling manufacturer, offers a wide range of steel plant finishing line for you to choose from. <br>#metal#cut#to#length#machine <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Fcut-to-length-machine%2F%0A%0A%0A%0A%0A%0A%0A%0A[/a]

Constant Velocity Joint is the advantage product of BOYA, which is very welcomed by design institutes. Because of the characteristics of high accuracy, constant speed, stable movement, long working life and so on, universal joint shaft is accepted by more and more customers. Both drum-gear coupling and cross shaft universal coupling can be substituted by constant velocity shaft completely with its reliable capacity and high-cost performance. BOYA constant velocity joint is used in steelmaking, continuous casting, hot rolling and cold rolling in the steel industry and performs very well. Our constant velocity drive shaft are also widely applied to a driven system of leveler, mill and other equipment in the non-ferrous industry. <br> <br>Details of constant velocity universal joint <br> <br>BOYA gets many patents of the constant velocity joint. <br> <br>BOYA company gets many patents of the constant velocity joint boots, such as short-type constant velocity joint, ball cage clutch, large expansion ball cage universal joint and self-aligning ball cage consistent universal coupling, etc. <br> <br>Types of Constant Velocity Joint <br> <br>Ball Joint Bearing for Petrochemical Industry <br>BOYA&#039;s ball joint shafts are widely used in the field of electric and diesel drives for oil drilling and production. The CV ball joint used are fracturing skids, pumping machines (commonly known as kettles), workover machines, drilling rigs, cementing machines, mud pumps, turntables, winches, oil special vehicles, etc. In response to the characteristics of petroleum equipment that cannot be easily adjusted and moved, BOYA has developed BHJ-F and BHJ-E ball joint drive shafts that are highly durable, short, and easy to install and replace. <br> <br>CV Joint Bearing For Steel and Non-ferrous Metal Industries <br>The main CV joint bearing is ball cage type, designed and developed BJ, BHJ, BJS, BC, DOJ five categories, compared to NTN, the model specification is more complete, for different fields, use conditions, almost all can choose the appropriate coupling. In the field of vehicles, unlike NTN&#039;s route to the main engine, BOYA Drive Shaft focuses on the field of special vehicles, with larger model specifications and the ability to adapt to greater torque carrying capacity, resulting in outstanding competitive advantages in the field. <br> <br>For more information about constant velocity joint price and Tension leveling, please feel free to contact us! <br> <br>There are many metal processing machinery manufacturers, but we are one of the best choices for you. <br>#constant#velocity#joint#price <br>[a]https%3A%2F%2Fwww.boyamachinery.com%2Fproducts%2Fconstant-velocity-joint%2F%0A%0A%0A%0A%0A%0A%0A[/a]