Influence of welding process on welding quality of cold roll forming machine
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【概要描述】Whether the welding quality of the cold roll forming machine meets the standard depends on the welding process. The welding process generally affects the quality of the welded pipe. The following describes the influence of the welding process on the welding quality of the cold bending forming machine.
Influence of welding process on welding quality of cold roll forming machine
【概要描述】Whether the welding quality of the cold roll forming machine meets the standard depends on the welding process. The welding process generally affects the quality of the welded pipe. The following describes the influence of the welding process on the welding quality of the cold bending forming machine.
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- Release time:2022-04-28 11:30
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Whether the welding quality of the cold roll forming machine meets the standard depends on the welding process. The welding process generally affects the quality of the welded pipe. The following describes the influence of the welding process on the welding quality of the cold bending forming machine.
The influence of the welding process on the welding quality of the cold roll forming machine can be divided into: ①V-shaped angle; ②Welding temperature; ③Welding extrusion force (extrusion amount); ④Welding speed; ⑤Steel strip edge condition.
(1) Influence of V-shaped angle on welding quality
1. Convergence point and welding point
①The meeting point should be as close to the welding point as possible, that is, the position of the V-shaped angle should be as close as possible to the center line of the squeeze roller (the joint position of the squeeze roller)
② Since there is no current passing through the area between the junction and the centerline of the squeeze roll, the edge of the steel strip in this area is not further heated, in order to keep the temperature of the weld zone high enough during the application of the squeezing force to form a good the weld, the confluence point should be as close as possible to the centerline of the squeeze roll
2. V-shaped corner opening angle
Keeping the meeting point as close as possible to the centerline of the squeeze rolls also means that the opening angle should be as large as possible.
①Reducing the opening angle can enhance the proximity effect of the current and improve the welding efficiency, but if the opening angle is too small, the distance from the confluence point to the center line of the extrusion roller will be lengthened, so that the strip edge is not extruded at the highest temperature. , which reduces the welding quality. In addition, when the opening angle is too small, after the liquid lintel is formed, under the action of the magnetic force line, it moves to the welding point and gathers into a larger lintel, which forms deep pits and pinholes that are difficult to press after blasting.
② When the opening angle is too large, the melting section becomes shorter and the flashing is stable, but the proximity effect of the current is weakened, the welding efficiency is obviously reduced, and the power consumption is increased. Creates wavy folds.
③ Therefore, the opening angle of the cold roll forming machine is generally controlled at 3°~6° in practical production.
3. V-shaped corner length
①In actual production, the distance between the induction coil and the center line of the squeeze roller should be shortened as much as possible. That is, the length of the V-shaped angle. If the distance is too long, the effective heating time will increase, and the heat affected zone will be widened, thereby reducing the strength of the weld and the stability of the weld.
② However, in the production of thick-walled welded pipes, the position of the induction coil should be appropriately moved to the direction of the forming unit, the length of the V-shaped angle should be increased, the heating time will be longer, and the opening angle of the V-shaped angle should be appropriately reduced to enhance the current proximity effect. Improve the heating efficiency, reduce the temperature difference between the inner and outer walls of the tube blank, effectively control the dripping phenomenon, and at the same time appropriately increase the extrusion force to effectively prevent reflow inclusions to ensure welding quality.
(2) Influence of welding temperature on welding quality
①Because the welding temperature is difficult to measure, the welding power is usually used to control the welding temperature.
② When the welding heat is insufficient, the edge of the heated steel strip cannot reach the welding temperature, and the solid structure is still maintained, forming an incomplete cold welding.
③ When the input heat is too large, the edge of the heated steel strip exceeds the welding temperature, which is prone to overheating or even overburning, causing the weld breakdown to cause the fusion metal to splash and form small holes.
④If the temperature is too high, it is easy to cause backflow slag inclusion, which affects the quality of flaw detection.
(3) Influence of welding extrusion force (extrusion amount) on welding quality
①After the two edges of the joint of the tube blank are heated to the welding temperature, under the extrusion of the extrusion roller, the metal grains are combined to form a welding seam.
②If the extrusion force is small, the number of bonds between grains will be small, the strength of the weld will be reduced, and cracking will easily occur after being stressed.
③If the extrusion force is too large, all the metal that reaches the welding temperature will be extruded, which will not only reduce the strength of the weld, but also produce welding defects such as excessive internal and external burrs and lap welding.
④ In production practice, it is difficult to measure the size of the extrusion force. Usually, the size of the extrusion force is used to measure the size of the extrusion force. The extrusion amount is usually calculated from the circumference of the tube blank before welding minus the tube with the outer burr removed after welding. body circumference.
⑤In production, different wall thicknesses use different extrusion amounts. The relationship between wall thickness and extrusion amount is shown in Table 1 below.
In the production practice, the production of ordinary carbon steel is more likely to produce inclusions, and it is often necessary to increase the extrusion amount and control the welding temperature to solve the problem.
When adjusting the extrusion force, it should be adjusted according to the inspection report of the weld metal flow line. The weld metal flow line is shown in the figure below.
The angle α of the metal streamline should be symmetrical and the size should be appropriate. The detection of the weld metal streamline has important guiding significance for on-site production.
Example: Sampling and analysis of welded pipes with flaw detection defects
The scanning electron microscope photos of the weld inclusions are as follows: the composition analysis is shown in Table 2 below
It can be seen from Table 2 that the weld inclusions are iron oxides.
The picture below is a photo of the weld flow line. From the picture, we can also see the cracks left by the weld after the weld inclusions are corroded. The a is the fusion line, and the b is the flow line.
According to the streamline analysis, the difference between the angle between the inner and outer walls is nearly 30°, and the center distance reaches 1.5mm. Obviously, due to the serious imbalance of the extrusion force, the inner wall is too large and the outer wall is too small. The insufficient extrusion force of the outer wall makes some iron oxides The molten material is not completely extruded and stays in the weld, and in severe cases, it will break from the wall thickness direction and cause cracks on the inner or outer wall.
(4) Influence of welding speed on welding quality
①When the welding speed is increased, the formation of oxide inclusions can be reduced, the heat affected zone can be shortened, and the oxide layer can be extruded from the molten groove;
② On the contrary, when the welding speed is very low, the heat-affected zone becomes wider, larger welding burrs will be generated, the oxide layer will be thickened, and the quality of the welding seam will be deteriorated.
③ Generally speaking, the higher the welding speed, the better the welding quality, which can reduce the generation of welding drip. However, for the production of thick-walled pipes, the welding speed should be properly controlled to increase the heating time and ensure the welding heat.
(5) The influence of the edge condition of the steel strip on the welding quality
The edge condition and shape of the strip are also important factors for the quality of high-frequency welding.
If the edge of the steel strip to be welded is uneven or irregular, the welding efficiency will be greatly reduced. Due to uneven or burrs on the edge of the strip, it may cause the welding surface to contact the arc in advance and cause a short circuit. On the one hand, the current density of the first half of the V-shaped angle increases and heats rapidly, and it will be heated and extruded before the weld is formed, consuming a lot of energy; on the other hand, the current density of the second half is greatly reduced. When pressing the roller, the base metal cannot be heated to the welding temperature, which is easy to cause cold welding.
Common defects on the edge of the steel strip include camber, wavy and slitting.
① The camber bending will cause the deviation or reversal of the steel strip, which will cause the welding seam to deviate, and more seriously cause the welding seam to form lap welding, resulting in inconsistency;
②The wave shape will easily cause cracks and cracks during welding;
③ The gnawing edge (that is, the phenomenon that the edge of the steel strip is jagged and uneven) is caused by the dullness of the disc blade of the slitting machine. Cracks or cracks are produced and the quality of the weld is affected.
Therefore, the edges of the tube blank to be welded are as flush as possible, and the I-type welding is maintained, so that the proximity effect and temperature of the inner and outer surfaces tend to be consistent, and the welding quality is improved.
There are many factors that affect the welding quality of cold roll forming machine. According to factors such as material and wall thickness, the welding process parameters are continuously summarized, improved and optimized in production, so as to improve the welding quality.
The quality of products can be guaranteed only when people, machines, materials, methods, and measurements are comprehensively and continuously controlled in the production process of welded pipes.
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Time of issue : 2025-04-25
In the wave of global manufacturing transformation and upgrading, Used pipe welding machines are gaining increasing favor among enterprises with their unique value proposition. Particularly, the Japanese-made 25 model Used pipe welding machines, with their dual advantages of "precision engineering + affordable pricing", are reshaping industry standards for cost-performance ratio in equipment procurement. This article provides a comprehensive analysis of these machines' market performance, technical characteristics, and practical application value.
In-depth Interpretation of Market Status
The current Used pipe welding machine market shows a "tripartite" pattern:
Japanese equipment accounts for about 35% (renowned for high precision)
German equipment accounts for 25% (known for durability)
Domestic equipment accounts for 40% (advantaged by pricing)
Among these, the three core competitive strengths of the Japanese 25 model Used pipe welding machine:
Precision retention: Maintains ±0.05mm machining accuracy even after 5 years of use
Energy efficiency: 18-22% more energy-efficient than comparable new domestic machines
Residual value rate: Retains over 40% residual value after 3 years of use
Core Technology Analysis
The four core systems of this Used pipe welding machine model:
High-precision forming system (7 horizontal rolls + 5 vertical rolls configuration)
Intelligent temperature-controlled welding system (±2°C precise temperature control)
Online inspection system (equipped with CCD visual inspection)
Energy-saving transmission system (servo motor + frequency conversion control)
Industry Application Big Data
In the automotive manufacturing sector:
Average production cost reduction: 42%
Production efficiency improvement: 28%
Defect rate reduction: Below 0.5%
In the architectural decoration sector:
Surface treatment compliance rate: 99.2%
Daily production capacity: Exceeds 5,000 linear meters
Product consistency deviation: <0.03mm
Procurement Decision Guide
Five critical dimensions to consider when purchasing Used pipe welding machines:
Equipment service years (recommend choosing machines under 5 years old)
Key component conditions (focus on high-frequency welding head wear)
Technical documentation completeness (must include complete maintenance records)
Supplier qualifications (prefer authorized service providers of Japanese brands)
Local service capabilities (service network with 2-hour response time)
Typical ROI Analysis
For a monthly production scale of 100,000 meters:
New machine investment: Approximately ¥2.8 million
Second-hand equipment: Approximately ¥1.2 million
Annual cost savings: ¥760,000 (including energy, maintenance, etc.)
Payback period: 19 months
Future Development Trends
Intelligent retrofitting will become the value growth point for Used pipe welding machines:
Adding IoT modules for remote monitoring (increases value by 15%)
Upgrading automatic mold-changing systems (improves efficiency by 20%)
Retrofitting intelligent sorting devices (reduces labor costs by 30%)
Conclusion:
The Japanese 25 model Used pipe welding machine is redefining industry standards with its exceptional cost-performance ratio. For enterprises pursuing "lean production," this equipment not only significantly reduces initial investments but also delivers machining quality comparable to new machines. When procuring, companies should evaluate both the current condition of the equipment and its potential for upgrades to maximize investment value. During this critical period of manufacturing transformation, choosing high-value Used pipe welding machines is undoubtedly a wise decision for achieving "cost reduction and efficiency improvement."
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill
In the wave of global manufacturing transformation and upgrading, Used pipe welding machines are gaining increasing favor among enterprises with their unique value proposition. Particularly, the Japanese-made 25 model Used pipe welding machines, with their dual advantages of "precision engineering + affordable pricing", are reshaping industry standards for cost-performance ratio in equipment procurement. This article provides a comprehensive analysis of these machines' market performance, technical characteristics, and practical application value.
In-depth Interpretation of Market Status
The current Used pipe welding machine market shows a "tripartite" pattern:
Japanese equipment accounts for about 35% (renowned for high precision)
German equipment accounts for 25% (known for durability)
Domestic equipment accounts for 40% (advantaged by pricing)
Among these, the three core competitive strengths of the Japanese 25 model Used pipe welding machine:
Precision retention: Maintains ±0.05mm machining accuracy even after 5 years of use
Energy efficiency: 18-22% more energy-efficient than comparable new domestic machines
Residual value rate: Retains over 40% residual value after 3 years of use
Core Technology Analysis
The four core systems of this Used pipe welding machine model:
High-precision forming system (7 horizontal rolls + 5 vertical rolls configuration)
Intelligent temperature-controlled welding system (±2°C precise temperature control)
Online inspection system (equipped with CCD visual inspection)
Energy-saving transmission system (servo motor + frequency conversion control)
Industry Application Big Data
In the automotive manufacturing sector:
Average production cost reduction: 42%
Production efficiency improvement: 28%
Defect rate reduction: Below 0.5%
In the architectural decoration sector:
Surface treatment compliance rate: 99.2%
Daily production capacity: Exceeds 5,000 linear meters
Product consistency deviation: <0.03mm
Procurement Decision Guide
Five critical dimensions to consider when purchasing Used pipe welding machines:
Equipment service years (recommend choosing machines under 5 years old)
Key component conditions (focus on high-frequency welding head wear)
Technical documentation completeness (must include complete maintenance records)
Supplier qualifications (prefer authorized service providers of Japanese brands)
Local service capabilities (service network with 2-hour response time)
Typical ROI Analysis
For a monthly production scale of 100,000 meters:
New machine investment: Approximately ¥2.8 million
Second-hand equipment: Approximately ¥1.2 million
Annual cost savings: ¥760,000 (including energy, maintenance, etc.)
Payback period: 19 months
Future Development Trends
Intelligent retrofitting will become the value growth point for Used pipe welding machines:
Adding IoT modules for remote monitoring (increases value by 15%)
Upgrading automatic mold-changing systems (improves efficiency by 20%)
Retrofitting intelligent sorting devices (reduces labor costs by 30%)
Conclusion:
The Japanese 25 model Used pipe welding machine is redefining industry standards with its exceptional cost-performance ratio. For enterprises pursuing "lean production," this equipment not only significantly reduces initial investments but also delivers machining quality comparable to new machines. When procuring, companies should evaluate both the current condition of the equipment and its potential for upgrades to maximize investment value. During this critical period of manufacturing transformation, choosing high-value Used pipe welding machines is undoubtedly a wise decision for achieving "cost reduction and efficiency improvement."
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill

Time of issue : 2025-04-24
With increasing emphasis on cost control and environmental protection in manufacturing, used pipe welding machines have become a popular choice for SMEs due to their cost-effectiveness and sustainability. This article takes the 76-127 model as an example, providing a comprehensive analysis from multiple dimensions including technical parameters, equipment configuration, quality assessment, market advantages and industrial applications.
1. Technical Parameters and Equipment Configuration
The 76-127 used pipe welding machine unit is renowned for its high efficiency and flexibility, with core parameters as follows:
Processing range: Capable of producing square pipes (Φ40-100) and round pipes (Φ50-127) with wall thickness up to 5mm, at a production speed of 60m/min.
Key configurations:
Forming and welding: Includes 7 horizontal rolls and 9 vertical rolls forming unit, paired with 300kW solid-state high-frequency welder to ensure stable weld quality.
Auxiliary systems: Hydraulic uncoiler, shear welder, computer flying saw and Turk's head straightening device to enhance automation.
Process flow: Strip uncoiling→leveling→forming→high-frequency welding→cooling→sizing→cutting, ensuring continuous high-efficiency production.
The modular design simplifies maintenance, and after refurbishment, its performance approaches that of new machines while reducing procurement costs by 40%-60%, making it ideal for budget-conscious enterprises.
2. Key Points for Quality Assessment
According to industry standards, the quality of used pipe welding machines should be comprehensively evaluated from four aspects:
Materials and processes
Material durability: Core components such as rolls and high-frequency welders should be original to ensure corrosion resistance and tensile strength.
Process control: Welding quality directly affects joint strength, requiring precise regulation of high-frequency current's skin effect and proximity effect.
Appearance and performance
Visual inspection: The unit surface should be free of rust and deformation, with no significant wear on molds.
Performance test: Verify production speed, sizing accuracy (e.g. ovality ±0.05mm) and flying saw synchronization through trial operation.
After-sales service
Reputable suppliers like Jinyujie Electromechanical provide installation, spare parts support and technical training to reduce operational risks.
3. Market Advantages and Environmental Value
Cost-effectiveness
The 76-127 model typically costs only 50%-60% of new equipment while being ready for immediate use.
A Zhejiang-based enterprise reported 30% productivity improvement with significantly better ROI.
Sustainability
Refurbishing used equipment reduces resource waste, aligning with green manufacturing trends.
Industry adaptability
Widely used in construction (guardrails, scaffolding), automotive (exhaust pipes) and energy (oil pipelines) sectors, supporting various materials including carbon steel and stainless steel.
4. Maintenance and Risk Control
Routine maintenance
Regular lubrication and inspection of key components to prevent rust and damage.
Operation standards
Operators should receive proper training and wear protective equipment.
Procurement risks
Verify equipment sources and clarify responsibilities through formal agreements.
5. Industry Trends and Selection Recommendations
The domestic used pipe welding machine market grew 25% YoY in 2023, with increasing share of refurbished imported equipment. Selection suggestions:
Match production needs with equipment specifications
Choose reputable suppliers with comprehensive after-sales services
Conclusion
The 76-127 used pipe welding machine unit, with its mature technology, low cost and environmental benefits, has become an optimal choice for manufacturers seeking efficiency improvements. Enterprises should combine quality assessment, maintenance strategies and supplier services to maximize equipment value and promote sustainable development.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill
With increasing emphasis on cost control and environmental protection in manufacturing, used pipe welding machines have become a popular choice for SMEs due to their cost-effectiveness and sustainability. This article takes the 76-127 model as an example, providing a comprehensive analysis from multiple dimensions including technical parameters, equipment configuration, quality assessment, market advantages and industrial applications.
1. Technical Parameters and Equipment Configuration
The 76-127 used pipe welding machine unit is renowned for its high efficiency and flexibility, with core parameters as follows:
Processing range: Capable of producing square pipes (Φ40-100) and round pipes (Φ50-127) with wall thickness up to 5mm, at a production speed of 60m/min.
Key configurations:
Forming and welding: Includes 7 horizontal rolls and 9 vertical rolls forming unit, paired with 300kW solid-state high-frequency welder to ensure stable weld quality.
Auxiliary systems: Hydraulic uncoiler, shear welder, computer flying saw and Turk's head straightening device to enhance automation.
Process flow: Strip uncoiling→leveling→forming→high-frequency welding→cooling→sizing→cutting, ensuring continuous high-efficiency production.
The modular design simplifies maintenance, and after refurbishment, its performance approaches that of new machines while reducing procurement costs by 40%-60%, making it ideal for budget-conscious enterprises.
2. Key Points for Quality Assessment
According to industry standards, the quality of used pipe welding machines should be comprehensively evaluated from four aspects:
Materials and processes
Material durability: Core components such as rolls and high-frequency welders should be original to ensure corrosion resistance and tensile strength.
Process control: Welding quality directly affects joint strength, requiring precise regulation of high-frequency current's skin effect and proximity effect.
Appearance and performance
Visual inspection: The unit surface should be free of rust and deformation, with no significant wear on molds.
Performance test: Verify production speed, sizing accuracy (e.g. ovality ±0.05mm) and flying saw synchronization through trial operation.
After-sales service
Reputable suppliers like Jinyujie Electromechanical provide installation, spare parts support and technical training to reduce operational risks.
3. Market Advantages and Environmental Value
Cost-effectiveness
The 76-127 model typically costs only 50%-60% of new equipment while being ready for immediate use.
A Zhejiang-based enterprise reported 30% productivity improvement with significantly better ROI.
Sustainability
Refurbishing used equipment reduces resource waste, aligning with green manufacturing trends.
Industry adaptability
Widely used in construction (guardrails, scaffolding), automotive (exhaust pipes) and energy (oil pipelines) sectors, supporting various materials including carbon steel and stainless steel.
4. Maintenance and Risk Control
Routine maintenance
Regular lubrication and inspection of key components to prevent rust and damage.
Operation standards
Operators should receive proper training and wear protective equipment.
Procurement risks
Verify equipment sources and clarify responsibilities through formal agreements.
5. Industry Trends and Selection Recommendations
The domestic used pipe welding machine market grew 25% YoY in 2023, with increasing share of refurbished imported equipment. Selection suggestions:
Match production needs with equipment specifications
Choose reputable suppliers with comprehensive after-sales services
Conclusion
The 76-127 used pipe welding machine unit, with its mature technology, low cost and environmental benefits, has become an optimal choice for manufacturers seeking efficiency improvements. Enterprises should combine quality assessment, maintenance strategies and supplier services to maximize equipment value and promote sustainable development.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill

Time of issue : 2025-04-23
Recently, Furuiwo launched its highly anticipated used pipe welding machine—the 140 model pipe welding unit. With outstanding processing capabilities and significant cost-performance advantages, this equipment has become an ideal choice for small and medium-sized pipe processing enterprises.
Core Performance: Precision and Efficiency for Diverse Needs
The Furuiwo 140 used pipe welding machine emphasizes practicality and stability, with key technical parameters as follows:
Processing Diameter Range: Φ60-159 mm, covering production needs from light-duty pipes to medium industrial pipelines;
Processing Thickness: Supports materials up to 5 mm, suitable for construction and machinery manufacturing;
Processing Speed: 60 meters/minute, significantly improving efficiency while reducing energy consumption.
The unit adopts a modular design for easy maintenance. After comprehensive inspection and upgrades by Furuiwo’s technical team, its performance is close to new machines, yet procurement costs are substantially lower.
Market Advantages: Economic and Environmental Value
Amid intensifying competition in manufacturing, used pipe welding machines are becoming a strategic choice for cost optimization. The Furuiwo 140 model stands out with the following advantages:
Cost Savings: Priced 40%-60% lower than new machines, ideal for budget-conscious SMEs;
Rapid Deployment: Pre-tested and ready for immediate use, shortening production setup time;
Sustainability: Extends equipment lifecycle, aligning with green manufacturing trends.
Wang Qiang, Furuiwo’s Sales Director, stated: “We are committed to providing high-value solutions. This used pipe welding machine not only ensures reliability but also comes with full after-sales support, including a one-year warranty and lifelong technical assistance.”
Applications: Versatility Across Industries
The unit processes carbon steel, stainless steel, and other materials, serving industries such as:
Construction: Production of guardrails and scaffold pipes;
Automotive: Exhaust pipes and chassis components;
Energy: Customized oil and water pipelines.
A Zhejiang-based pipe manufacturer reported: “After purchasing Furuiwo’s used pipe welding machine, our productivity increased by 30%, with costs halved compared to new equipment—ROI far exceeded expectations.”
Industry Outlook: Growing Demand for Used Equipment
As manufacturing upgrades, the used industrial equipment market is booming. Industry reports indicate a 25% year-on-year growth in China’s used pipe welding machine transactions in 2023, with refurbished imported brands gaining traction. Furuiwo, leveraging technical expertise and channel advantages, has emerged as a leader in this sector.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill
Recently, Furuiwo launched its highly anticipated used pipe welding machine—the 140 model pipe welding unit. With outstanding processing capabilities and significant cost-performance advantages, this equipment has become an ideal choice for small and medium-sized pipe processing enterprises.
Core Performance: Precision and Efficiency for Diverse Needs
The Furuiwo 140 used pipe welding machine emphasizes practicality and stability, with key technical parameters as follows:
Processing Diameter Range: Φ60-159 mm, covering production needs from light-duty pipes to medium industrial pipelines;
Processing Thickness: Supports materials up to 5 mm, suitable for construction and machinery manufacturing;
Processing Speed: 60 meters/minute, significantly improving efficiency while reducing energy consumption.
The unit adopts a modular design for easy maintenance. After comprehensive inspection and upgrades by Furuiwo’s technical team, its performance is close to new machines, yet procurement costs are substantially lower.
Market Advantages: Economic and Environmental Value
Amid intensifying competition in manufacturing, used pipe welding machines are becoming a strategic choice for cost optimization. The Furuiwo 140 model stands out with the following advantages:
Cost Savings: Priced 40%-60% lower than new machines, ideal for budget-conscious SMEs;
Rapid Deployment: Pre-tested and ready for immediate use, shortening production setup time;
Sustainability: Extends equipment lifecycle, aligning with green manufacturing trends.
Wang Qiang, Furuiwo’s Sales Director, stated: “We are committed to providing high-value solutions. This used pipe welding machine not only ensures reliability but also comes with full after-sales support, including a one-year warranty and lifelong technical assistance.”
Applications: Versatility Across Industries
The unit processes carbon steel, stainless steel, and other materials, serving industries such as:
Construction: Production of guardrails and scaffold pipes;
Automotive: Exhaust pipes and chassis components;
Energy: Customized oil and water pipelines.
A Zhejiang-based pipe manufacturer reported: “After purchasing Furuiwo’s used pipe welding machine, our productivity increased by 30%, with costs halved compared to new equipment—ROI far exceeded expectations.”
Industry Outlook: Growing Demand for Used Equipment
As manufacturing upgrades, the used industrial equipment market is booming. Industry reports indicate a 25% year-on-year growth in China’s used pipe welding machine transactions in 2023, with refurbished imported brands gaining traction. Furuiwo, leveraging technical expertise and channel advantages, has emerged as a leader in this sector.
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill

Time of issue : 2025-03-21
Answer: Three core advantages:
The processing capacity of this used pipe making machine includes round pipes with diameter of 60-159mm, square and rectangular pipes with diameter of 50 * 50-120 * 120mm, anda wall thickness of 2.0-5.0mm, fully covering the mainstream demand of the welded pipe equipment market.
Refurbishment guarantee for Used ERW tube mill machinery: All mechanical and electrical components undergo professional maintenance/replacement, and the life assessment of key components meets the standards. The renovation and maintenance process for second-hand welded pipe equipment takes at least one month and up to three months.
The cost efficiency of the second-hand high-frequency welded pipe machine is only 45% of that of the new welded pipe machine. The production line of the used welded pipe mills production line sold by our company includes a one-year extended warranty, free training, and lifelong technical support.
Q: After purchasing second-hand welded pipe equipment, how long can it be put into production?
Answer: Jin Yujie Company's second-hand welded pipe equipment is all sourced from first-hand sources, with stock in the warehouse. It takes 7 days to ship and 15 days to complete installation and commissioning. The second-hand welded pipe unit can be purchased and used immediately.
It is recommended to arrange a technical team and decision-makers to conduct on-site inspections of the warehouse as soon as possible, select a second-hand welded pipe unit on site, in order to put it into production as soon as possible, create production capacity for the second-hand welded pipe production line, and achieve profitability.
more datail about this 140 enlarged 165 used tube mill line, please check here:
https://www.usedpipemill.com/product/Forever-Used-High-Frequency-Welding-Pipe-Making-Machie-of-%CE%A6140-Expand-to-%CE%A6165MM-221.html
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill
Answer: Three core advantages:
The processing capacity of this used pipe making machine includes round pipes with diameter of 60-159mm, square and rectangular pipes with diameter of 50 * 50-120 * 120mm, anda wall thickness of 2.0-5.0mm, fully covering the mainstream demand of the welded pipe equipment market.
Refurbishment guarantee for Used ERW tube mill machinery: All mechanical and electrical components undergo professional maintenance/replacement, and the life assessment of key components meets the standards. The renovation and maintenance process for second-hand welded pipe equipment takes at least one month and up to three months.
The cost efficiency of the second-hand high-frequency welded pipe machine is only 45% of that of the new welded pipe machine. The production line of the used welded pipe mills production line sold by our company includes a one-year extended warranty, free training, and lifelong technical support.
Q: After purchasing second-hand welded pipe equipment, how long can it be put into production?
Answer: Jin Yujie Company's second-hand welded pipe equipment is all sourced from first-hand sources, with stock in the warehouse. It takes 7 days to ship and 15 days to complete installation and commissioning. The second-hand welded pipe unit can be purchased and used immediately.
It is recommended to arrange a technical team and decision-makers to conduct on-site inspections of the warehouse as soon as possible, select a second-hand welded pipe unit on site, in order to put it into production as soon as possible, create production capacity for the second-hand welded pipe production line, and achieve profitability.
more datail about this 140 enlarged 165 used tube mill line, please check here:
https://www.usedpipemill.com/product/Forever-Used-High-Frequency-Welding-Pipe-Making-Machie-of-%CE%A6140-Expand-to-%CE%A6165MM-221.html
For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier:www.usedpipemill.com
JinYuJie-Used Pipe Mills Supplier(Please click the link→) :second-hand pipe mill
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Wechat:+86 13336487288
WhatsApp:+86 13336487288
Email: zty@usedpipemill.com
Address: No. A99, Lecong Avenue East, Lecong Town, Foshan City, Guangdong Province
