1.4848 (GX40CrNiSi25-20) water-cooled furnace rollers, also known as "water-cooled rollers", "cooling rollers" or "cold rollers", are core components used for rapid cooling of industrial materials. This product uses a unique temperature balancing technology to quickly direct the heat absorbed by the working area to both ends through a built-in water circulation system, thereby ensuring that the roller surface temperature is always higher than the air dew point to avoid condensation on the surface.This temperature control principle makes it particularly suitable for cooling high-temperature materials. While ensuring that the surface is dry and free of water marks, it improves the heat conduction efficiency and effectively prevents defects on the product surface.
Temperature balance structure design to prevent local overcooling
The non-condensing water-cooled furnace roller adopts an annular channel structure and an inner cavity heat equalization system. Through the precisely designed fluid mechanics path, the cooling water flows evenly inside the roller body to avoid "cold spots" with excessive temperature differences. This can ensure that the roller surface maintains a constant temperature as a whole, and eliminate condensation caused by local overcooling from the source.
High thermal conductivity materials ensure efficient heat transfer
The roller body is made of 1.4848 (GX40CrNiSi25-20) high-temperature stainless steel, which has excellent high-temperature strength, thermal conductivity and oxidation resistance. Its chemical composition contains a high proportion of Cr (chromium) and Ni (nickel), which enhances the overall thermal conductivity and thermal fatigue performance of the material, thereby realizing the rapid and uniform transfer of heat from the heated area to the cold end.
Always above the dew point temperature, completely eliminating condensation
Through a systematic thermal management solution, the roller surface temperature is precisely controlled to be above the air dew point (usually 15~20℃ or higher, depending on the ambient humidity). This means that the roller surface can be kept dry in most humid environments, thereby avoiding surface defects of the material caused by water droplets and greatly improving the product yield.
Quick response to heat exchange and improved cooling efficiency
Non-condensing water-cooled rollers can still maintain high heat exchange efficiency when facing high-temperature materials (such as strips discharged from the furnace above 800℃), effectively shorten the cooling cycle, and increase the operating speed of the entire line. Its short thermal response time helps to match the beat requirements of high-speed continuous production lines, especially suitable for continuous cooling tasks such as high-speed casting rollers, thin plate quenching, cooling and shaping.
Stable ability to cope with extreme working conditions
Even when operating in high humidity, high temperature, and high heat load environments, the non-condensing cooling roller can maintain temperature stability for a long time, without condensation and moisture problems, and without roller surface temperature drift due to long-term operation, truly achieving continuous and stable cooling, ensuring system operation safety and product consistency.
In a high-temperature, high-speed, and heavy-load continuous production environment, the structural strength and heat exchange efficiency of water-cooled furnace rollers directly affect production efficiency and product quality. 1.4848 (GX40CrNiSi25-20) non-condensing water-cooled furnace rollers have comprehensively improved their service life and heat exchange efficiency through material optimization and structural strengthening design, providing enterprises with more efficient and reliable solutions.
Excellent material, heat-resistant and corrosion-resistant for longer
This product is made of austenitic heat-resistant stainless steel 1.4848, whose typical chemical composition contains Cr and Ni, and an appropriate amount of Si is added to enhance the stability of the oxide film. This material can not only withstand high temperatures above 1100°C, but also has excellent oxidation resistance and thermal fatigue resistance. It is not easy to crack or corrode even if it runs in a harsh furnace environment for a long time.
*Cr: It can form a dense chromium oxide protective film at high temperature. This protective film is stable and has strong adhesion, which can effectively prevent oxygen and other corrosive media from penetrating into the base metal.
*Ni: It significantly improves the toughness and thermal shock resistance of the alloy, ensuring that no thermal cracks will occur under multiple hot and cold cycles.
*Si: It enhances the anti-stripping ability of the oxide film, so that the water-cooled roller still has excellent surface protection at high temperatures.
These alloy elements work synergistically, so that the 1.4848 material will not soften, deform or fatigue even if it runs in a continuous furnace or high-temperature zone for many years.
High thermal conductivity design, fast heat dissipation without heat accumulation
Through the combination of material selection and structural layout, the water-cooled roller realizes a closed-loop system of fast heat conduction, efficient heat dissipation and stable temperature control. Its high thermal conductivity allows the heated surface to transfer heat to the cooling water flow area in a very short time, effectively preventing the local temperature rise of the roller body, keeping the surface temperature of the working area stable, and helping to improve the cooling consistency of the workpiece.
Anti-deformation structure, high operating stability
Under heavy load and long-cycle operation, the roller body is very prone to thermal expansion deformation or thermal cracking. This product adopts multiple heat treatment processes and stress relief technology to effectively control the internal stress distribution and enhance the overall anti-deformation ability. Even under high-speed rotation and instantaneous temperature difference changes, it can still maintain structural accuracy and surface flatness, providing a good thermal physical foundation for subsequent processing.
*Precision heat treatment process: eliminate internal stress and enhance structural uniformity
Make the metal structure in 1.4848 alloy more uniform, refine the grains, improve high temperature strength and creep resistance, and reduce stress concentration caused by uneven structure. Annealing treatment is carried out in the key step after processing to effectively release residual stress and prevent "secondary deformation" or thermal stress cracking of the roller body during use. After multiple heating-cooling cycles, the roller body after heat treatment can still maintain the stability of material morphology and size.
*Structural symmetry design and precision machining: prevent the "accumulation effect" of thermal deformation
Cooling water evenly covers the entire roller surface to ensure the minimum temperature difference in each area and avoid asymmetric expansion or "roller surface bulging" caused by local overheating. The concentricity and roundness of the roller surface and the roller core are precisely controlled by CNC turning and milling equipment to ensure structural symmetry and reduce eccentric loading and rotational vibration. Even at high-speed rotation, there will be no roller eccentricity, jumping or deformation accumulation.
*Thermal stability of the material itself and structural strengthening
1.4848 material's excellent thermal fatigue strength can effectively resist the microcrack expansion caused by high-frequency alternation of hot and cold, which is the key to maintaining long life under thermal cycle conditions. Combined with the optimized design of the cylinder thickness and supporting bearing structure, the overall support capacity of the roller body is enhanced when it is subjected to axial and radial thermal stress, avoiding typical problems such as "bulging in the middle" or "depression at the end".
*Multiple heat treatment processes to release residual stress：During the manufacturing process, the roller body will often produce non-negligible internal residual stress after high-temperature casting or forging. If these stresses are not released, they may cause structural deformation or even cracking during high-temperature operation. The use of multiple heat treatment processes such as normalizing, annealing, and aging treatment can refine the material grains and make the structure more uniform and stable. Effectively release the internal stress accumulated during casting or processing to avoid structural instability caused by the superposition of thermal stress.
In order to fundamentally solve this problem, the non-condensing water-cooled roller adopts a multiple heat treatment process system, which mainly includes three key stages: normalizing, annealing, and aging.
Normalizing treatment: Normalizing is to heat the roller body in an environment higher than the transformation temperature of the steel, and then cool it in still air. This process effectively refines and homogenizes the grain structure, adjusts the grain morphology inside the material, makes the structure more uniform and dense, and improves its mechanical properties and plasticity. Normalizing can also partially alleviate the coarse grains and uneven stress distribution caused by casting or forging, and is the first step to release residual stress.
Annealing treatment: Annealing is to further release the internal stress in the material by heating the roller body at a low temperature for a long time and slowly cooling it. Annealing not only effectively reduces the hardness and brittleness of the material, improves its ductility, but also improves the structural stability of the steel. It eliminates the uneven residual stress in the manufacturing process through thermal diffusion and reduces the negative impact of internal stress on subsequent thermal cycles.
Aging treatment: The aging process is to make the microstructure in the steel reach a stable state through appropriate temperature and time. This stage not only helps to completely release the residual stress, but also promotes the formation of precipitation strengthening phases in the material, improving the overall mechanical strength and thermal stability. The aging process can significantly reduce the risk of thermal deformation and cracking of the material during high-temperature operation.
*Optimize structural symmetry to reduce thermal expansion deviation：Non-condensing water-cooled rollers fully consider the problem of thermal expansion symmetry in the design stage. Through symmetrical geometric structure design and balanced layout, the thermal stress distribution of the roller body during heating or cooling is controlled. Optimize the wall thickness distribution and the internal water channel structure to make the heat conduction path balanced and consistent, and reduce stress concentration in a certain area due to excessive heating. Prevent local shrinkage or "cold spots" caused by cooling water channels, and avoid the risk of rotational deflection and vibration caused by local deformation.
The roller body adopts a symmetrical geometric design to ensure that the thermal expansion in all directions offsets or balances each other when heated or cooled, thereby avoiding asymmetric deformation caused by overheating or overcooling in local areas. Symmetrical wall thickness and shape balance the heat energy conduction path and reduce the thermal stress gradient caused by inconsistent local thermal expansion speed. This design ensures uniform deformation of the roller body as a whole, prevents warping, twisting or bending, and maintains the dynamic balance and stability of the equipment during high-speed rotation.
The wall thickness of the roller body is precisely calculated and optimized to avoid local overthickness or overthinness. The uniform wall thickness or reasonable gradient distribution is conducive to uniform heat conduction and release, reducing the temperature difference stress concentration area.
Reasonable wall thickness distribution effectively reduces the temperature difference between the surface and the inside of the roller, avoids thermal cracks and material fatigue, and enhances the durability of the roller.
The internal water cooling system of the roller is designed as a spiral water channel or annular water cavity to ensure that the cooling water is evenly distributed, covering the entire roller surface, and eliminating cold spots and hot spots. The uniform cooling flow avoids uneven shrinkage caused by local water temperature differences and reduces the internal stress caused by uneven cooling.
The water channel layout not only considers the heat exchange efficiency, but also pays attention to the balance of structural symmetry and fluid dynamics to ensure that the water flow resistance is small and stable, and improves the overall heat dissipation performance of the system.
Through the symmetrical optimization of the roller structure and cooling system, the shrinkage or "cold spot" phenomenon due to temperature differences in local areas is prevented to the greatest extent. Insufficient local cooling will cause uneven material shrinkage, resulting in local deformation of the roller, which will cause deflection and vibration during rotation.
Avoid the negative impact of this uneven distribution of thermal stress on machine stability and production quality, and ensure continuous and efficient operation of the equipment.
*Enhanced thermal fatigue resistance and structural stability：The 1.4848 alloy itself has excellent thermal fatigue resistance, but in order to enhance its performance in multiple hot and cold cycles, the roller body also introduced multiple thermal fatigue simulations and dynamic balance tests during the manufacturing process. Combined with precision welding and machining technology, the assembly concentricity of the roller body and key components such as flanges and bearing seats is guaranteed to improve the overall structural strength. The "hot zone" design of the connection between the roller surface and the cooling system is strengthened to improve the thermal shock crack resistance.
Super long service life, reducing the frequency of equipment replacement
The high-strength alloy matrix combined with the optimized structural design enables the water-cooled roller to have a longer service life than the traditional material roller under the same use conditions. It can run continuously for more than 1~3 years (depending on the working conditions), greatly reducing the frequency of line stoppage and maintenance, and reducing the cost of spare parts replacement and equipment maintenance.
4848 (GX40CrNiSi25-20) non-condensing water cooling roller not only undertakes a single cooling function, but also realizes "one machine for multiple uses" in multiple industrial links with its excellent temperature control accuracy and structural strength. It integrates the functions of casting roller, quenching roller, shaping roller, etc., to meet various cooling and forming needs in complex process flows.
Quenching and leveling of metal strips
During the heat treatment process of carbon steel, stainless steel, non-ferrous metals and other strips, the cooling roller can complete the rapid surface cooling in a very short time, and realize the rapid transformation and strengthening of the strip structure.
*effectively control the distribution of metal hardness and toughness while maintaining good flatness;
*reduce thermal stress deformation and improve the accuracy of subsequent leveling and shearing processes.
Plastic film shaping cooling after extrusion
Plastic films such as PET, PP, PE, etc. need to be cooled and shaped immediately after extrusion to prevent dimensional deformation or uneven thickness due to delayed cooling.
*Uniform temperature control on the roller surface, high shaping efficiency;
*Improve the transparency, smoothness and thickness uniformity of the film material, and improve the product grade.
Surface temperature treatment of electronic materials and composite panels
In the production of high-end electronic substrates and composite structural panels (such as copper clad laminates and carbon fiber panels), temperature control is crucial to interlayer bonding and surface quality.
*Stable temperature control system ensures continuous and consistent hot pressing and cooling processes;
*Improve interfacial bonding strength, avoid defects such as delamination and blistering, and enhance product electrical and mechanical properties.
Cooling process of glass fiber and ceramic-based materials
After high-temperature sintering or hot pressing, these materials require precise and stable cooling to ensure the stability of the fiber structure and ceramic crystal state.
*The high-temperature strength of the roller surface does not decrease, and it can operate stably in a temperature range of up to 700°C or above;
*Avoid material cracking, edge collapse or uneven performance, and ensure that the mechanical and thermal properties of the product meet the standards.
Curing and cooling of coating and printing materials
In the production of industrial coils, functional films or coated paper, after high-temperature processes such as UV curing and hot air drying, the surface of the material needs to be cooled quickly to enter the next process, such as slitting, rewinding or lamination. The non-condensing water-cooled roller plays the role of a "cooling shaping roller" here, effectively eliminating the curling tendency and keeping the surface flat.
*Quick cooling to improve the production line beat;
Effectively prevent problems such as coating cracking, blurred printing patterns or material blistering;
*Reduce surface defect rate and improve the overall appearance and market acceptance of the product.
Thermal setting and finishing process of fiber fabrics
In the thermal setting, calendering or finishing process of synthetic fiber fabrics or glass fiber felt materials, the water-cooled roller is not only used for cooling, but also has the function of width setting and shaping. Especially in the high-temperature rear section, the non-condensing characteristics ensure that the cloth surface is dry, ripple-free and wet-free.
*Quick cooling after high temperature shaping to keep the fiber arrangement stable;Avoid fabric shrinkage, edge curling or heat mark residue;
*Improve the dimensional stability and flatness of textile products, and facilitate subsequent processing such as coating, dyeing or cutting.
Polymer material lamination molding
In the composite processing of thermoplastic materials such as TPU, EVA, PA, etc., the cooling roller is used for cooling and shaping after lamination to ensure the stable bonding of the multi-layer structure without stratification or bubbles. The stable cooling environment provided by the non-condensing water cooling roller is particularly critical and suitable for automated high-speed composite production lines.
*Achieve rapid cooling and locking after multi-layer thermal bonding;No condensation on the surface to avoid contamination of the bonding layer;
*Ensure the consistency and bonding strength of the composite sheet to meet the high-performance material standards.
Thermal control molding of new energy materials
In the production of new energy core materials such as lithium battery pole pieces, fuel cell membranes, and battery separators, extremely high temperature control accuracy is required. Non-condensing water-cooled rollers must not only reduce the temperature accurately, but also ensure that the coils are not polluted by water vapor or have dimensional deviations caused by thermal expansion and contraction.
*Avoid degradation of active material performance due to surface condensation;
Support seamless connection of continuous coating-drying-cooling processes;
*Improve the stability of battery materials and energy conversion efficiency, and support high-end manufacturing of new energy.
Driven by the "dual carbon goals" and the global green manufacturing trend, the 1.4848 (GX40CrNiSi25-20) non-condensing water-cooled roller not only meets the process requirements of efficient production, but also reflects the positive response to energy conservation, emission reduction and environmental friendliness from multiple dimensions. Its environmentally friendly characteristics in material selection, temperature control design, and operating efficiency provide solid support for enterprises to build sustainable development intelligent production lines.
Reduce energy loss: Rapid cooling to maximize energy efficiency
Non-condensing water-cooled rollers use a high thermal conductivity material structure and a spiral internal water circulation system, combined with advanced temperature control technology, which can transfer heat from the contact surface to both ends in a very short time. This fast and precise heat conduction capability greatly shortens the cooling time and production cycle.
*Technical performance: Compared with traditional solid cooling rollers or ordinary cold water immersion processes, this system can shorten the cooling time of each batch by 15-30%, significantly increasing unit output.
*Specific advantages: The shortening of cooling time not only improves production efficiency, but also reduces energy consumption per unit output, especially in continuous production lines.
*Environmental protection contribution: According to actual calculations, after using non-condensing water-cooled rollers, the overall energy consumption can be reduced by 10-20%, which means a significant reduction in the factory's electricity use in air conditioning, refrigeration, liquid cooling and other links, thereby reducing the total carbon emissions.
Dew control design: suppress water vapor emission and create a dry and clean workshop
Condensation water is easily formed on the roller surface during high-temperature cooling, which not only affects product quality, but also causes secondary problems such as increased humidity and equipment corrosion. The non-condensing water cooling roller completely eliminates this hidden danger by controlling the roller surface temperature to always be higher than the air dew point.
*Technical performance: a dynamic temperature difference is formed between the roller surface hot zone temperature and the two ends, but both are higher than the ambient dew point (generally above 15°C), and no visible condensation water is precipitated.
*Specific advantages: it eliminates problems such as product water marks, corrosion, and slippage caused by condensation, and does not require large-scale ventilation and dehumidification equipment, reducing additional system investment.
*Environmental contribution: greatly reduce the pressure of moisture on the environment and energy system, reduce the operating load of dehumidifiers and air conditioners, indirectly save a lot of electricity, and achieve a cleaner and lower-carbon workshop environment.
Reduce scrap rate: precise temperature control, source control of defects
The core advantage of the temperature control system lies in its stable heat conduction efficiency and strong controllability. Non-condensing water-cooled rollers can achieve precise temperature control in different temperature ranges, ensuring that all parts of the material are cooled uniformly, and are not prone to common defects such as warping, cracking, and peeling.
*Technical performance: Temperature fluctuations are controlled within ±3°C to ensure uniform thermal shrinkage of the material during the cooling process.
*Specific advantages: Product dimensional accuracy is improved and surface quality is stable. It is particularly suitable for products such as precision strips, plastic films, and composite materials that require high flatness and finish.
*Environmental protection contribution: By reducing the scrap and defective rates, it indirectly saves production resources such as raw materials, energy, and water resources, reduces the generation of waste and carbon emissions, and improves the overall resource utilization efficiency of the production line.
Extend equipment life: High-temperature resistant alloys ensure long-term operation
The roller body is made of **1.4848 (GX40CrNiSi25-20)** high-temperature alloy steel, which has excellent heat resistance and oxidation resistance and thermal fatigue strength, and can maintain structural integrity and surface stability in complex thermal environments.
*Technical performance: The chromium content in the material is as high as 24-27% and the nickel content is 19-22%, which effectively inhibits high-temperature oxidation and improves crack resistance and corrosion resistance.
*Specific advantages: The product life is more than 30% longer than that of ordinary carbon steel cooling rollers, which is particularly suitable for heat treatment equipment with multi-shift or continuous high-intensity operation.
*Environmental protection contribution: The extension of equipment life means fewer spare parts, lower manufacturing and transportation consumption, and significantly reduces the material and carbon footprint in the production chain, which is of substantial significance for promoting green equipment upgrades.
Empowering intelligent production lines: Building green and automated cooling units
Non-condensing water cooling rollers can be deeply connected with modern intelligent control systems to form an intelligent control unit with automatic temperature adjustment and programmable cooling time. This product not only improves the automation level of the cooling process, but also promotes the environmental protection upgrade of the entire production line.、*Technical performance: Supports PLC and DCS system access to realize temperature zone division, data collection, real-time feedback and other functions.
*Specific advantages: stable operation and simple maintenance. The equipment does not require frequent debugging or manual intervention, reducing human operation errors and energy consumption fluctuations.
*Environmental protection contribution: Promote enterprises to achieve the transformation from traditional manual cooling to automated energy-saving cooling, promote the "dual-wheel drive" of green manufacturing and intelligent manufacturing, and achieve synergistic benefits in low carbonization and digitalization.
The excellent performance of the non-condensing water-cooled roller is inseparable from the scientific construction of its material ratio and structural design. The use of high-temperature alloy steel 1.4848 (GX40CrNiSi25-20) not only has excellent performance in heat resistance, corrosion resistance, and oxidation resistance, but also provides a physical basis for the long life and high stability of the equipment.
Strong high-temperature stability:
heat-resistant alloy ensures no deformation during high-temperature operation：Non-condensing water-cooled rollers are made of 1.4848 (GX40CrNiSi25-20) high-temperature alloy steel, which is rich in chromium (Cr 24–27%) and nickel (Ni 19–22%), which are the key to improving high-temperature performance. Chromium can improve the hardness and high-temperature oxidation resistance of the material, while nickel enhances the toughness and structural stability of the material. In a high-temperature environment of 700°C to 1000°C, this alloy can still maintain mechanical strength and dimensional stability, and will not cause deformation or stress concentration due to thermal expansion and softening.
*The roller body will not warp, crack or dimensional deviation, ensuring uniformity and continuity during the cooling process.
*It is particularly suitable for high-temperature working conditions such as steel manufacturing, heat treatment and continuous casting, ensuring long-term stable operation of equipment and reducing the number of shutdowns and maintenance.
Excellent anti-oxidation and anti-corrosion ability：
The high proportion of chromium in 1.4848 alloy forms a dense and stable chromium oxide protective film on the surface of the roller body. This film can effectively block the erosion of oxygen, water vapor, sulfide and other corrosive media, greatly improving the corrosion resistance of the roller body.
*In a variety of harsh environments, such as oxidizing atmosphere, high-temperature steam cooling environment and media containing corrosive chemicals, the roller body can still maintain surface integrity and avoid peeling and rust.
*Extend the service life of the equipment, reduce the frequent maintenance and replacement costs caused by corrosion, and improve the overall economic benefits of the equipment.
Environmental contribution: Reduce waste generated by equipment damage, which is conducive to resource conservation and green production.
Precision process and optimized water system：
The non-condensing water-cooled roller adopts advanced spiral water channel or annular water cavity design to ensure that the cooling water can flow evenly through the entire roller surface to avoid local hot spots or uneven cooling. With CNC machining technology, high-precision manufacturing of water channel distribution is achieved, making the internal fluid dynamics of the roller body optimal.
* Uniform cooling avoids thermal stress concentration, reduces the risk of thermal deformation and cracking of the roller, and improves the cooling effect and roller life.
Quality assurance: Each product undergoes strict leakage testing and dynamic balance verification before leaving the factory to ensure that the product is safe and reliable, leak-free and has minimal vibration under high-speed operation.
*The optimized cooling system reduces energy consumption, increases cooling speed, and meets the needs of high-speed production lines.
Uniform water flow distribution to avoid local overheating
The spiral water channel design allows the cooling water to flow along the inner spiral of the roller body, ensuring that the water flow covers every part of the roller body. The water flow continuously contacts the inner wall of the roller body in the spiral path, effectively taking away heat and preventing the formation of local hot spots in a certain area due to stagnation of water flow or insufficient flow rate. The annular water cavity achieves uniform distribution of water flow over the entire cross section through a continuously closed annular water channel, further avoiding temperature gradients.
Improve heat exchange efficiency and dissipate heat quickly
The spiral water channel allows the cooling water to form a longer flow path in the roller body, increasing the contact time and heat exchange area between the water and the roller metal, and promoting a more complete transfer of heat to the cooling medium. The annular water cavity optimizes the cross-sectional area and flow rate of the water flow to ensure efficient circulation of the cooling medium, thereby achieving a fast and stable heat dissipation effect.
Reduce flow resistance and ensure stable water circulation
The spiral water channel and annular water cavity processed by precision CNC have precise structural dimensions and smooth flow channels, which can effectively reduce the turbulence and resistance of the water flow, ensure the flow stability and pressure balance of the water circulation system, and avoid equipment performance fluctuations caused by poor cooling water flow.
Extend equipment life and reduce maintenance costs
The uniform cooling effect reduces the temperature stress and thermal fatigue on the roller surface, reduces the risk of cracks and deformation, and significantly extends the service life of the equipment. At the same time, the optimized water channel design reduces the maintenance frequency caused by local overheating and reduces downtime and maintenance costs.
Good thermal fatigue resistance
In the industrial environment of alternating cooling and heating cycles, the roller body needs to withstand repeated thermal stress shocks, and the thermal fatigue performance of the material directly affects the durability of the equipment. 1.4848 alloy has excellent thermal fatigue strength and can effectively resist the expansion of microcracks and surface peeling caused by drastic temperature changes.
* In continuous casting, heat treatment and quenching processes, the roller body can work stably for a long time to avoid fracture or deformation due to thermal fatigue.
* Extend the life of components, reduce production interruptions and maintenance costs caused by frequent replacement, and improve overall production efficiency.
* Reduce scrap and waste generation, in line with the concept of green manufacturing and low-carbon environmental protection.
Maintain surface integrity and reduce the risk of product defects
Under conditions of frequent hot and cold alternation, surface microcracks often extend to the roller surface, resulting in quality problems such as indentation, scratches or surface decarburization of the processed material. The 1.4848 alloy used in non-condensing water-cooled rollers can significantly reduce surface cracking and peeling due to its excellent thermal fatigue resistance, and maintain long-term surface finish.
Improve the continuity of equipment operation and adapt to high-beat production lines
On high-speed production lines, any shutdown caused by equipment fatigue failure will lead to a decrease in the production efficiency of the entire line or even scrapping of materials. Non-condensing water-cooled rollers still maintain stable structure and performance in frequent hot and cold cycles, greatly improving the continuous operation capacity of the entire line.Reduce the frequency of line stoppage for maintenance and support 7×24 hours continuous operation;Improve the trust and automation level of the intelligent production line in the temperature-controlled roller;
Adapt to extreme temperature fluctuation environment and ensure safe operation
In some hot processing processes, the instantaneous temperature difference can reach hundreds of degrees Celsius. If the thermal fatigue strength of the material is insufficient, it is very easy to cause sudden fracture or burst. 1.4848 alloy can still maintain structural stability under the alternating impact of high temperature and cold water, avoiding sudden failure accidents.
*No fracture or crack extension during cooling;Enhance the structural safety of the entire roller system;
*Provide safety protection for high-risk and high-temperature continuous production links and improve overall process stability.
Reduce total operating costs and extend the life cycle of equipment
The roller body with excellent heat fatigue resistance not only reduces the frequency of daily maintenance and spare parts replacement, but also reduces indirect losses caused by roller damage (such as reduced production line efficiency, quality fluctuations, etc.). The comprehensive operating cost is significantly better than ordinary carbon steel or low-end alloy products.
*Longer maintenance intervals and lower comprehensive investment;
The average service life of each roller body is extended by more than 30%;
*Particularly suitable for modern factories that pursue high OEE (overall equipment efficiency) and green lean manufacturing.
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