Longitudinal Seam Welding Machine
Select LSW by seam length, minimum tube diameter and weld preparation, then confirm the complete welding package.
- Seam length
- 300–1500 mm
- Max diameter reference
- 800 mm
- Speed reference
- 300–2000 mm/min
Fit the cylindrical workpiece to the model envelope
| Dimension | Decision |
|---|---|
| Seam length | Match the selected 300–1500 mm reference model. |
| Minimum diameter | The listed minimum changes from 50 to 120 mm by model. |
| Maximum diameter | The supplied maximum is 800 mm; confirm loading and support. |
| Thickness and material | Confirm grade and the selected model range by weld trial. |
Joint preparation governs the result
- 01
Prepare edges
Agree joint gap, alignment and edge condition.
- 02
Load and support
Check diameter, seam length and clamping access.
- 03
Set welding process
Confirm included welding source, settings and auxiliaries.
- 04
Inspect seam
Agree appearance and required testing on representative material.
LSW Length and Diameter Matrix
| Parameter | LSW-300 | LSW-500 | LSW-800 | LSW-1000 | LSW-1200 | LSW-1500 |
|---|---|---|---|---|---|---|
| Input Voltage | Single Phase 220 VAC / 3 Phase 380 VAC, 50/60 Hz, customizable | |||||
| Max. Welding Length | 300 mm | 500 mm | 800 mm | 1000 mm | 1200 mm | 1500 mm |
| Workpiece Diameter | 50–800 mm | 70–800 mm | 90–800 mm | 100–800 mm | 100–800 mm | 120–800 mm |
| Workpiece Thickness | 0.3–3 mm | 0.4–3 mm | 0.4–3 mm | 0.4–3 mm | 0.4–3 mm | 0.4–3 mm |
| Welding Speed | 300–2000 mm/min | |||||
| Walking Accuracy | 0.1 / 0.2 mm | |||||
Walking accuracy of 0.1/0.2 mm is a supplied motion reference, not a guaranteed finished weld tolerance. Confirm welding source, accessories and final acceptance criteria.
Questions to settle before ordering
Do all models accept the same minimum diameter?
No. The supplied minimum depends on the model.
Does walking accuracy guarantee weld tolerance?
No. It is a motion reference; approve the finished weld separately.
Is the welding source included?
Confirm the source, accessories and auxiliary supply in the quotation.
Can speed determine accepted output?
Include loading, alignment and the agreed welding process.
What samples should I provide?
Material, thickness, diameter, seam length and joint preparation requirements.
Tell Us Your Longitudinal Seam Welding Requirements
Send your material, workpiece diameter, thickness, required seam length, welding process and electrical standard so we can recommend the suitable LSW model.