FX165 vs FX219 vs FX273 ERW Pipe Mill Comparison
FX165, FX219 and FX273 are large ERW pipe mill references for substantial welded pipe projects. These lines require careful engineering around pipe diameter, wall thickness, steel grade, forming load, welding power, cutting method and workshop conditions.

Model Family Overview
FX165, FX219 and FX273 are large ERW pipe mill references for substantial welded pipe projects. These lines require careful engineering around pipe diameter, wall thickness, steel grade, forming load, welding power, cutting method and workshop conditions. The page separates published technical reference data from project-specific engineering. It is intended to help buyers narrow the model family before a detailed technical discussion.


Published Reference XFX Technical Reference Table
Mobile: swipe the table left or right to see all columns.
| Model | Round tube OD (mm) | Round wall (mm) | Square tube size (mm) | Square wall (mm) | Main motor (kW) | HF welder (kW) | Speed (m/min) |
|---|---|---|---|---|---|---|---|
| FX165 | Φ89-203 | 2.0-6.0 | 70×70-150×150 | 2.0-5.0 | 200×2 | 500 | 15-50 |
| FX219 | Φ102-229 | 3.0-8.0 | 80×80-180×180 | 3.0-6.0 | 250×2 | 600 | 10-40 |
| FX273 | Φ127-254 | 4.0-10.0 | 100×100-200×200 | 4.0-8.0 | 132×2+160×2 | 800 | 10-30 |
Source: XFX previously published technical reference data. Main motor values with a slash show alternative published reference configurations; the confirmed proposal and contract control the final configuration.
Application Fit by Model Family
FX165: entry to heavy pipe projects
The published reference reference covers large round pipe and hollow sections with project planning beyond the FX114 family.
FX219: heavier industrial range
Adds published reference diameter, wall and square-section scope for buyers with confirmed heavy structural or industrial fabrication demand.
FX273: largest published reference family
Represents the broadest recovered XFX reference in this group and requires the most extensive infrastructure and engineering confirmation.
Project economics
For these families, utilization, raw-material supply, handling equipment and downstream markets are as important as the maximum tube size.
FX165 vs FX219 vs FX273: Heavy Pipe Mill Selection Framework
These three published reference references cover different large-pipe envelopes. At this scale, model selection must be treated as a complete production-line engineering task rather than a simple diameter comparison.
FX165 direction
- Round: Φ89-203 mm, 2.0-6.0 mm wall
- Square: 70×70-150×150 mm, 2.0-5.0 mm wall
- Smallest published reference envelope in this heavy-pipe family
FX219 direction
- Round: Φ102-229 mm, 3.0-8.0 mm wall
- Square: 80×80-180×180 mm, 3.0-6.0 mm wall
- Intermediate published reference envelope and welding reference
FX273 direction
- Round: Φ127-254 mm, 4.0-10.0 mm wall
- Square: 100×100-200×200 mm, 4.0-8.0 mm wall
- Largest published reference envelope in this comparison
Engineering inputs required
- Complete pipe schedule with material grade
- Coil and strip dimensions
- Welding, seam treatment and cutting requirements
- Foundations, power, lifting and material flow
Commercial planning inputs
- Priority products and annual product mix
- Target output by product group
- Workshop and expansion plan
- Installation, training and spare-parts expectations
Heavy ERW Pipe Mill Project Engineering
- Market and product validation: Confirm repeat demand for every large diameter, wall and section before defining the mill family.
- Coil supply study: Verify available coil width, thickness, grade, weight and slitting capability for the planned products.
- Civil and utility design: Coordinate foundations, power, cooling, compressed air, crane coverage and maintenance access.
- Heavy forming and welding: The stand, drive, roll-pass and weld-zone design must follow the most demanding confirmed products.
- Inspection strategy: Define dimensional, weld and finished-pipe checks appropriate to the buyer’s product and market requirements.
- Discharge and logistics: Plan cutting, run-out, bundling, storage and loading around the mass and length of large finished pipe.
Three-Level Heavy Pipe Mill Selection Framework
FX165 and FX219 boundary
- Repeat large-pipe demand
- Coil and slitting availability
- Wall and material strength
- Foundation and lifting scope
When FX273 enters the discussion
- Confirmed largest published reference product range
- Heavy roll and product handling
- Expanded utilities and civil work
- Dedicated project management and commissioning
Feasibility Inputs for FX165, FX219 and FX273
Commercial evidence
Show target products, customers or markets without disclosing confidential names, plus the expected production mix.
Raw-material route
Confirm whether coils are purchased at final strip width or require a matching slitting solution.
Site engineering
Provide land and workshop drawings, lifting plan, utilities, local installation resources and destination logistics.
Model Comparison FAQ
Can FX165, FX219 or FX273 be selected from maximum diameter alone?
No. Large-pipe projects require a combined review of wall thickness, material, section geometry, coil supply, foundations, welding, cutting and downstream handling.
Why is a feasibility review important for these models?
The line affects civil work, utilities, lifting, raw-material logistics, tooling investment and finished-pipe storage. The machine table is only one part of the decision.
Does XFX guarantee the published reference speed range?
No. Published Reference values are preliminary references. The confirmed technical proposal must define the applicable production conditions.
What should be prepared before requesting a quotation?
Prepare the size-by-wall matrix, material grades, target product mix, coil specification, workshop plan, voltage, destination and required installation support.
Related Models and Planning Resources
ERW Tube Mill Machine
Start a project-specific heavy pipe mill engineering discussion.
Slitting Line
Review coil-to-strip preparation for a large pipe production project.
Contact XFX
Send the complete product matrix and factory information for feasibility review.
Request Your Tube Mill Solution
Send your tube size list, wall thickness, material, capacity target, destination country, and factory voltage. XFX will review your requirements before recommending a practical machine configuration.