This production line is a high‑end manufacturing system specially engineered for the production of precision welded pipes made of stainless steel and titanium alloys. Capable of handling tube diameters from Φ6 mm to Φ25 mm and wall thicknesses from 0.2 mm to 2.0 mm, the line incorporates high‑precision forming, automatic welding, in‑line inspection and intelligent coiling functions. Driven by dual 7.5 KW motors (front and rear), it delivers fully automated operation from coil stock to finished coiled pipe. Renowned for its stability, accuracy and consistency, the line is widely used in medical devices, aerospace, chemical instrumentation, high‑precision fluid transfer and other demanding industries.
| Parameter Category | Specification |
|---|---|
| Suitable Materials | Stainless steel series (304, 316L, etc.), titanium alloys (Gr1, Gr2, etc.) |
| Tube Diameter Range | 6 mm to 25 mm |
| Wall Thickness Range | 0.2 mm to 2.0 mm |
| Welding Speed | Wall thickness 0.2‑1.0 mm: up to 8 m/min Wall thickness 1.0‑2.0 mm: up to 3 m/min |
| Drive System | Dual motor drive (front & rear), each motor 7.5 KW |
| Welding Method | TIG (Tungsten Inert Gas) or High‑Frequency Welding; laser welding optional |
| Number of Forming Stands | Typically 12‑16 sets of precision rolling stands |
| Sizing & Straightening | In‑line sizing and multi‑roller straightening system for roundness and straightness |
| Control System | PLC + touchscreen interface; supports parameter storage, fault diagnosis, speed synchronization |
| Coiling System | Hydraulic or servo‑controlled coiler; max. coiling diameter ≥1500 mm |
| In‑line Inspection | Optional: eddy‑current testing, laser diameter measurement, weld‑seam tracking |
| Line Length | Approx. 25‑35 m (configurable) |
| Power Supply | 3‑phase 380 V / 50 Hz (customizable) |
| System Module | Description |
|---|---|
| Uncoiling & Leveling Module | Hydraulic expanding uncoiler combined with multi‑roller leveling device ensures flat, stress‑reduced strip feeding into the forming section. |
| Precision Forming Unit | 12‑16 sets of high‑rigidity rolling stands gradually shape the strip into a tube. Rolls are made of alloy steel with hard‑chrome plating for wear resistance and high forming accuracy. |
| Welding System | TIG or high‑frequency welding technology provides stable current, concentrated arc, smooth/even weld penetration, and is equipped with automatic weld tracking and gas shielding. |
| In‑line Heat Treatment | Optional solution‑treatment system using medium‑frequency induction heating to relieve welding stress and improve corrosion resistance/mechanical properties of the weld zone. |
| Sizing & Straightening Unit | Multiple sizing and straightening rollers maintain outer‑diameter tolerance within ±0.05 mm and excellent straightness for precision applications. |
| Cutting System | Flying saw or servo cutter with programmable cut length; delivers clean, burr‑free cuts for fixed‑length pieces or pre‑coiling segmentation. |
| Coiling & Take‑up Module | Hydraulic or servo‑controlled coiler with adjustable winding tension produces neat coils; supports large coil weights (typically 500‑1000 kg) for higher productivity and logistics efficiency. |
| Electrical & Control System | PLC‑based control ensures synchronous line operation; touchscreen HMI allows easy parameter setting, monitoring, fault diagnosis, production statistics and recipe storage. |
| Advantage | Explanation |
|---|---|
| High Precision Output | Tube diameter tolerance controlled within ±0.05 mm, uniform wall thickness, excellent roundness – suitable for stringent dimensional applications. |
| Multi‑Material & Multi‑Spec Flexibility | Capable of producing pipes from different materials and sizes by changing molds and adjusting parameters. |
| High Production Efficiency | Dual‑motor drive and intelligent control enable stable high‑speed operation (up to 8 m/min), significantly boosting output. |
| Easy Operation & Maintenance | User‑friendly HMI, parameterized setup, automatic fault alarms, modular design of key components for quick service. |
| Superior Weld Quality | Advanced welding processes deliver strong, smooth, corrosion‑resistant seams that pass X‑ray, eddy‑current and other NDT standards. |
| High Automation Level | Fully automated process from uncoiling to coiling minimizes manual intervention, ensuring consistent quality and operational safety. |
