| After-sales Service: | Online Guidance/Door-to-Door Service |
|---|---|
| Type: | Pipe Mill/Pipe Production Line |
| Controlling Mode: | CNC |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency




Typical Technical Specifications | |||||||
Technical Data | GG 40 | GG 50 | GG 60 | GG 80 | GG 100 | GG 120 | GG 180 |
Pipe Dia.(mm) | 12.7 - 50.8 | 25.4 - 76.2 | 38.1 -114 | 50.8 - 168 | 133 - 273 | 159 - 325 | 219 - 426 |
Pipe Thickness (mm) | 0.3 - 2.5 | 0.5 - 3.5 | 0.5 - 4.5 | 1.0 - 5.5 | 1.5- 8.0 | 2.0 - 10.0 | 3.0 - 12.0 |
Note | We accept orders with client's designs | ||||||
Machine Configuration | |||||||
Unit | Function | Technical Notes | |||||
Uncoiler | Holds and feeds stainless coil | Powered/manual; hydraulic expansion mandrel; anti-scratch surface protection | |||||
Forming Section | Multi-pass roll forming into open tube | Alternating horizontal & vertical rolls; stainless or tool-steel rollers with surface treatment | |||||
Welding Section | Closes and welds the tube seam | TIG, laser, or plasma welding | |||||
Bead Rolling | Flattens weld bead, removes excess height, smooths ID/OD | External bead roller + internal bead scarfing (optional) | |||||
Grinding Section | Polishes weld bead, removes surface oxidation and micro-defects | Configurable with 1-4 grinding heads; manual handwheel or automatic pneumatic feed available | |||||
On-line Bright Annealing | Post-weld solution treatment, relieves welding stress | Induction heating + inert gas shield | |||||
Sizing & Straightening | Finishes OD, roundness, and straightnes | Multi-pass sizing rolls (2-4 stands) + Turk's head straightener | |||||
Cut-off | Cuts tube to length | Servo/hydraulic flying saw; non-stop cutting | |||||
Run-out Table | Collection | Auto stacking | |||||
Optional Configurations | |||||||
1.Automatic weld seam tracking system — CCD/laser vision, real-time seam positioning 2.In-line eddy current / ultrasonic testing 3.Internal gas shielding system (argon purge inside tube during welding) 4.On-line bright annealing unit 5.Automatic tube bundling & wrapping machine | |||||||






