Product Details: Discover unparalleled performance with Guangdong Hangao (Seko Machinery) Technology Co., Ltd.'s heat exchanger tube mill. This sophisticated machine specializes in Stainless Steel Coil Tubing and Pipe Welding, offering robust construction and innovative technology. Dive into the future of manufacturing with a solution that marries cutting-edge engineering with user-friendly functionality.

Type | Material | Welding type | O.D. (mm) | Thickness (mm) | Motor Power (KW) | Size(L*W*H)(m) |
SZG-30 | SST | TIG | 6-16 | 0.4-1.5 | 5.5 | Customized |
SZG-40 | SST | TIG | 16-50.8 | 0.5-2.5 | 7.5 | Customized |
SZG-50 | SST | TIG | 25.4-76 | 0.5-3.0 | 11 | Customized |
SZG-60 | SST | TIG | 50.8-114 | 1.0-4.0 | 15 | Customized |
SZG-80 | SST | TIG | 89-168 | 1.0-5.0 | 18.5 | Customized |
SZG-100 | SST | TIG | 114-219 | 2.0-8.0 | 30 | Customized |
SZG-120 | SST | TIG | 168-325 | 3.0-10.0 | 37 | Customized |

Structural form: Double-shaft expansion and contraction uncoiler. The mandrel, composed of 4 wedge-shaped blocks, secures the inner diameter of the coil through a screw expansion and contraction mechanism. The unwinding speed is expertly regulated by a manual brake, ensuring smooth operation. One roll is produced online while another roll is prepared, facilitating seamless and continuous production.
√ Higher loading capacity, ensuring efficiency and reliability
√ Stainless steel edging to prevent contamination from iron ions, maintaining the purity of the steel strip
√ Ensures a cleaner, more organized workshop environment
√ Max stocking length can reach an impressive range of 200-300M


Function: The strip undergoes staged deformation through strategically placed horizontal roller stands and vertical roll stands, producing high-quality stainless steel pipe products in various specifications.
√ The frame is designed as an integral unit to enhance rigidity and minimize cumulative error, ensuring precision.
√ Roller material customization available to meet diverse needs
Function: Welds the formed strip within a closed protective environment, ensuring quality and consistency.
Structure: Includes a horizontal roller device, extrusion device, and welding system for optimal performance.
√ Various welding type customizations are welcomed


The stainless steel tube, after initial sizing, enters the online bright solid solution system. In the induction heating furnace, a tension of about 1% is applied through a speed control system, aligning with the line speed for high yield. The heat treatment system is user-friendly, highly automated, and efficient, with a reliable heating power supply that remains unaffected by production line failures.
The cooling channel's sealing system is robust, stable, and reliable. The annealing outlet temperature is maintained below 100°C, utilizing a closed loop softened water cooling system for optimal performance.









1. Employing an advanced electromagnetic control system, our machine refines the arc trajectory, boosting working speed by at least 25% more while ensuring superior welding seam quality. Achieve peak speeds of up to 12 m/min with TIG welding, yielding exceptional seam integrity.
2. Not only does it accelerate efficiency, but it also minimizes resource consumption and conserves factory space, featuring continuous, single tube and on-line heat processing. Our technology processes O.D as small as 10-12.7mm.
Advanced Automation
Optimizes labor costs. A single operator can oversee two production lines simultaneously. Our proprietary PLC control system synchronizes each section autonomously. With an intuitive HMI touch screen, operation is seamless.
Anti-Corrosion Excellence
Premium rollers crafted from SKD11 undergo vacuum gas quenching. Achieving a hardness level of 64-66, complemented by CNC high-precision processing.
Precision Engineering
State-of-the-art CNC processing guarantees a smooth surface with minimal scratching during forming. Our precision ensures size accuracy within a tolerance range of±0.5-1.0 mm.
Innovative design of the micro-adjusting device enhances roller replacement operability, offering greater ease of use.
Wide-ranging Usage
SEKO Machinery's heat exchanger tubing stainless steel coil pipe production line is tailored for diverse industrial applications, including HVAC pipe fittings, sanitary tubes, water pipes, valve pipe fittings, petrochemical pipes,chemical industry, pharmaceutical industry, wine-making industry, petroleum industry, food industry, automotive industry, paper manufacturing industry, air-conditioning industry and beyond. Products processed with our tube mill conform to ASTM, DIN, ISO, GB, and JIS standards. Leveraging IGBT and a digital control system, our production line precisely manages electricity consumption to reduce costs.







1. Which countries are your products exported to?
Our pipe production lines are cherished and utilized worldwide, complemented by all necessary certifications.
2. What about the warranty?
All our pipe production lines come with a one-year quality warranty. During this period, spare parts are replaced free of charge. Additionally, we offer lifelong technical support and other assistance.
3. How do we install your pipe production lines?
Typically, our engineers will visit your factory to assist with installation and adjustments. We also provide comprehensive installation guides and instructional videos to ensure you master the process.
4. Which export ports do you use?
We utilize any ports in China.
Commonly, we use Shenzhen port, but we can accommodate any preferred port.
5.What are the payment terms and delivery time?
For small machines: 100% T/T, Western Union, or cash in advance.
For large machines and bulk orders: 40% deposit, 60% before shipment (we will document the entire delivery process for customer confirmation).
and accompanying documents. Payment can be made via T/T, L/C, Western Union, or other methods.
The delivery time for machines ranges from 45 to 90 days.
6. Are your goods certified with ISO9001 or CE?
Yes, all our pipe production lines are ISO certified, ensuring top-quality machines.
7. What is the nature of your company: dealer or factory?
We are a leading manufacturer of pipe production lines with a large factory. We warmly invite you to visit and connect with us.
Contact Us to Learn More About Hangao (SEKO) Pipe Machine


