Specification
Specification
254 ERW / HF weld tube mill.
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Process Library · Tube & Pipe Mills
ERW Tube Mill Walkthrough
The weld zone and sizing stands define this line; round and square profiles run on the same mill.
What this process looks like
The weld zone and sizing stands define this line; round and square profiles run on the same mill.
Round OD
Round OD
Φ88.9–254 mm.
Square
Square
80×80–200×200 mm.
Specifications
| Specification | 254 ERW / HF weld tube mill. |
|---|---|
| Round OD | Φ88.9–254 mm. |
| Square | 80×80–200×200 mm. |
| Strip width | 280–800 mm. |
| Thickness / grades | 3–8.0 mm· Q195 / Q235 / Q355. |
| Coil | OD φ1200–2200 · ID φ760 (expand φ650–780) · max15 t. |
| Electrics / HMI | 380 V / 60 Hz / 3φ· ZH+EN · blue frame. |
| Package note | Reference-class detail · includes stacker + tooling · indoor water-pit note. |
Operation steps
Uncoil heavy strip
Uncoil heavy strip
15 t class coil with ID expand range — watch camber and edge quality before forming the flower.
Forming flower
Forming flower
Bring the edges together for the HF weld — any gap or mismatch shows up as an open seam later.
HF weld zone
HF weld zone
This is an ERW/HF weld zone — the seam is closed by high-frequency welding.
Scarf & size
Scarf & size
Remove the bead, then set OD/square sizing — keep round and square families correctly tagged.
Cut & stack
Cut & stack
Square ends and a stacker path from the package specification.
Tag electrics
Tag electrics
This mill ships with 380 V/60 Hz electrics and a ZH+EN interface.
What's included
This line
ERW / HF welded tube mill: closed seam by high-frequency weld; primary range φ88.9–254 / □80–200, strip 3–8 mm.
Standard build
Laser-welded tube, lockform (snap-lock) tube and square-tube punching run on their own dedicated lines — see Related processes.
FAQ
What material and thickness range does this line run?
280–800 mm.
What control system does the machine use?
380 V / 60 Hz / 3φ· ZH+EN · blue frame.
Related processes
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