The Cold Rolling Machine LG-90-H is a high-precision two-roller cold rolling mill independently developed by Jiangsu Yongteli Machinery Co., Ltd., a national high-tech enterprise with 40+ years of R&D and manufacturing experience in cold-rolled tube equipment. Designed for seamless tube production, this machine bridges the gap between small and large-diameter tube processing, making it a core asset for enterprises in non-ferrous metals, stainless steel, alloy steel, and black metal industries.
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With a production base covering 40,000+ square meters in Huai’an High-Tech Development Zone, Jiangsu, Yongteli equips the LG-90-H with advanced production and testing equipment to ensure consistent performance. Unlike ordinary cold rolling machines, the LG-90-H adopts a cycle rolling process that converts metal shells into finished tubes in a continuous, efficient manner, reducing material waste and improving production accuracy—key advantages for businesses aiming to optimize seamless tube manufacturing workflows.
The Cold Rolling Machine LG-90-H operates on a two-roller seamless tube rolling mechanism that maximizes productivity while maintaining precision. Power from the main motor is transmitted to the drive system via pulley deceleration, driving the frame (equipped with two-roller ring dies) through a brace connecting rod structure for linear reciprocating motion.
During each cycle: When the machine head reaches the limit position (Location A), the taper die expands from small to large. Simultaneously, the mandrel rotation and feeding structure drives the metal shell to rotate at a fixed angle and move forward. The pass formed by the two rollers and mandrel changes from large to small (forward stroke) or small to large (reverse stroke), enabling continuous rolling and sizing of the shell into finished tubes. This one-cycle forming process eliminates redundant steps, cutting production time by up to 30% compared to traditional multi-step rolling methods.
Durability is a core strength of the LG-90-H. Key components such as the roller ring dies and frame are made of high-strength alloy steel, which resists wear and deformation even under long-term high-load operation. The machine’s base adopts a reinforced cast iron structure with anti-vibration design, ensuring stable operation and minimizing precision errors caused by vibration.
Yongteli’s strict quality control—from raw material selection to final assembly—further enhances the machine’s reliability. Under regular maintenance, the LG-90-H maintains a service life of 5+ years, reducing replacement costs for enterprises and ensuring consistent production output.
The Cold Rolling Machine LG-90-H integrates advanced precision control and automation technologies to meet high-standard tube manufacturing requirements. Its mandrel system features automatic rotation and feeding adjustment, with a tube diameter tolerance of ≤ ±0.1mm—far exceeding industry average precision levels.
A built-in PLC control system enables real-time monitoring of rolling parameters (e.g., pressure, speed, temperature) and automatic adjustments to deviations. This automation not only reduces the need for manual operation (lowering training costs for operators) but also ensures uniform quality across every batch of tubes, critical for industries like automotive and aerospace that demand strict consistency.
The LG-90-H is widely applicable to industries that rely on high-quality seamless tubes, including:
· Energy Sector: Used to produce seamless tubes for oil and gas transmission, where corrosion resistance (for stainless steel tubes) and pressure resistance (for alloy steel tubes) are essential.
· Mechanical Manufacturing: Manufactures hydraulic cylinder tubes and precision mechanical parts tubes, leveraging the machine’s high precision to ensure smooth operation of mechanical components.
· Construction Industry: Processes structural seamless tubes for high-rise buildings and bridges, with the machine’s high-strength rolling capability ensuring tube load-bearing performance.
· Automotive & Chemical Industries: Produces automotive brake system tubes (stainless steel) and chemical corrosion-resistant tubes (alloy steel), meeting industry-specific material and precision standards.
The Cold Rolling Machine LG-90-H is optimized for medium-diameter seamless tubes, with a processing range of 30–90mm in diameter and 2–15mm in wall thickness. It is compatible with multiple materials, including:
· Non-ferrous metals (e.g., copper, aluminum)
· Stainless steel (e.g., 304, 316L)
· Alloy steel (e.g., 45# steel, 20CrMo)
· Black metals (e.g., carbon steel)
This versatility allows enterprises to switch between different materials and tube specifications without extensive machine reconfiguration, improving production flexibility.
The LG-90-H supports a wide range of materials, including non-ferrous metals (copper, aluminum), stainless steel (304, 316L), alloy steel (20CrMo, 40Cr), and black metals (carbon steel). Its adjustable rolling parameters enable compatibility with different material hardness and ductility, making it suitable for diverse industry needs.
The production capacity of the Cold Rolling Machine LG-90-H varies by tube material and specification. For 50mm-diameter carbon steel tubes (wall thickness 5mm), the typical capacity is up to 500kg per 8-hour shift. For harder materials like stainless steel, capacity adjusts to approximately 350–400kg per shift. Yongteli’s technical team can also optimize parameters based on specific customer production goals to improve output.
Yes. Yongteli offers comprehensive after-sales support for the LG-90-H, including:
· 24/7 technical support via phone (+86-13336683488) and email (jskaizhongJx@qq.com);
· On-site installation guidance and operator training;
· Supply of genuine replacement parts (e.g., roller ring dies, mandrels) with 12-month quality guarantees;
· Regular maintenance inspections to extend machine service life.
The key difference lies in the target tube diameter range:
· LG-80-H: Designed for small-diameter tubes (20–80mm), ideal for precision small tubes in electronics or medical devices;
· LG-90-H: Focuses on medium-diameter tubes (30–90mm), balancing versatility and efficiency for general industrial use;
· LG-120-H: For large-diameter tubes (50–120mm), suitable for heavy industries like construction and energy.
All models share Yongteli’s core advantages (high precision, durability) but are tailored to different production needs, helping customers select the optimal equipment.
With a production base covering 40,000+ square meters in Huai’an High-Tech Development Zone, Jiangsu, Yongteli equips the LG-90-H with advanced production and testing equipment to ensure consistent performance. Unlike ordinary cold rolling machines, the LG-90-H adopts a cycle rolling process that converts metal shells into finished tubes in a continuous, efficient manner, reducing material waste and improving production accuracy—key advantages for businesses aiming to optimize seamless tube manufacturing workflows.
The Cold Rolling Machine LG-90-H operates on a two-roller seamless tube rolling mechanism that maximizes productivity while maintaining precision. Power from the main motor is transmitted to the drive system via pulley deceleration, driving the frame (equipped with two-roller ring dies) through a brace connecting rod structure for linear reciprocating motion.
During each cycle: When the machine head reaches the limit position (Location A), the taper die expands from small to large. Simultaneously, the mandrel rotation and feeding structure drives the metal shell to rotate at a fixed angle and move forward. The pass formed by the two rollers and mandrel changes from large to small (forward stroke) or small to large (reverse stroke), enabling continuous rolling and sizing of the shell into finished tubes. This one-cycle forming process eliminates redundant steps, cutting production time by up to 30% compared to traditional multi-step rolling methods.
Durability is a core strength of the LG-90-H. Key components such as the roller ring dies and frame are made of high-strength alloy steel, which resists wear and deformation even under long-term high-load operation. The machine’s base adopts a reinforced cast iron structure with anti-vibration design, ensuring stable operation and minimizing precision errors caused by vibration.
Yongteli’s strict quality control—from raw material selection to final assembly—further enhances the machine’s reliability. Under regular maintenance, the LG-90-H maintains a service life of 5+ years, reducing replacement costs for enterprises and ensuring consistent production output.
The Cold Rolling Machine LG-90-H integrates advanced precision control and automation technologies to meet high-standard tube manufacturing requirements. Its mandrel system features automatic rotation and feeding adjustment, with a tube diameter tolerance of ≤ ±0.1mm—far exceeding industry average precision levels.
A built-in PLC control system enables real-time monitoring of rolling parameters (e.g., pressure, speed, temperature) and automatic adjustments to deviations. This automation not only reduces the need for manual operation (lowering training costs for operators) but also ensures uniform quality across every batch of tubes, critical for industries like automotive and aerospace that demand strict consistency.
The LG-90-H is widely applicable to industries that rely on high-quality seamless tubes, including:
· Energy Sector: Used to produce seamless tubes for oil and gas transmission, where corrosion resistance (for stainless steel tubes) and pressure resistance (for alloy steel tubes) are essential.
· Mechanical Manufacturing: Manufactures hydraulic cylinder tubes and precision mechanical parts tubes, leveraging the machine’s high precision to ensure smooth operation of mechanical components.
· Construction Industry: Processes structural seamless tubes for high-rise buildings and bridges, with the machine’s high-strength rolling capability ensuring tube load-bearing performance.
· Automotive & Chemical Industries: Produces automotive brake system tubes (stainless steel) and chemical corrosion-resistant tubes (alloy steel), meeting industry-specific material and precision standards.
The Cold Rolling Machine LG-90-H is optimized for medium-diameter seamless tubes, with a processing range of 30–90mm in diameter and 2–15mm in wall thickness. It is compatible with multiple materials, including:
· Non-ferrous metals (e.g., copper, aluminum)
· Stainless steel (e.g., 304, 316L)
· Alloy steel (e.g., 45# steel, 20CrMo)
· Black metals (e.g., carbon steel)
This versatility allows enterprises to switch between different materials and tube specifications without extensive machine reconfiguration, improving production flexibility.
The LG-90-H supports a wide range of materials, including non-ferrous metals (copper, aluminum), stainless steel (304, 316L), alloy steel (20CrMo, 40Cr), and black metals (carbon steel). Its adjustable rolling parameters enable compatibility with different material hardness and ductility, making it suitable for diverse industry needs.
The production capacity of the Cold Rolling Machine LG-90-H varies by tube material and specification. For 50mm-diameter carbon steel tubes (wall thickness 5mm), the typical capacity is up to 500kg per 8-hour shift. For harder materials like stainless steel, capacity adjusts to approximately 350–400kg per shift. Yongteli’s technical team can also optimize parameters based on specific customer production goals to improve output.
Yes. Yongteli offers comprehensive after-sales support for the LG-90-H, including:
· 24/7 technical support via phone (+86-13336683488) and email (jskaizhongJx@qq.com);
· On-site installation guidance and operator training;
· Supply of genuine replacement parts (e.g., roller ring dies, mandrels) with 12-month quality guarantees;
· Regular maintenance inspections to extend machine service life.
The key difference lies in the target tube diameter range:
· LG-80-H: Designed for small-diameter tubes (20–80mm), ideal for precision small tubes in electronics or medical devices;
· LG-90-H: Focuses on medium-diameter tubes (30–90mm), balancing versatility and efficiency for general industrial use;
· LG-120-H: For large-diameter tubes (50–120mm), suitable for heavy industries like construction and energy.
All models share Yongteli’s core advantages (high precision, durability) but are tailored to different production needs, helping customers select the optimal equipment.
