ROLLS · MOULDS · WEAR PARTS
Tube Mill Tooling & Spare Parts
Tube mill rolls and forming moulds decide the accuracy and surface of the finished tube. YH manufactures that tube mill tooling — rolls, forming moulds and wear parts — matched to your mill model and pipe size, including tooling for other mill brands. Round pipe moulds run from Φ5 to Φ711 mm and square tube moulds from 10 to 1000 mm, cut in Cr12MoV, SKD11 or D2 to 60–66 HRC with tolerances from ±0.02 mm. Whether the order replaces one worn set or covers a wider package of tube mill spare parts, every roller set is quoted against the mill it has to fit.
Will this tooling fit my mill and pipe size?
A reline should not cost you production time. For a worn set or a new pipe size, a tube mill reline machine order follows the same route as tooling for any other brand: the mill stays in service while the new rolls are cut to the measurements of the existing frame, and our engineers confirm the tube mill roll design against the pipe size and strip grade you run. Send the tube size range and mill model — with base diameter, bore and keyway readings if you have them — and the quotation follows from there.
- 01Long service life: Stable rolling over thousands of tons of steel, with a service life above 5,000 hours.
- 02Mirror-grade surface: Precision grinding reaches a mirror finish on the working surface.
- 03Hardness that holds: Heat treated to 60–66 HRC, with high-chromium-molybdenum-vanadium steel on high-wear designs.
- 04Custom development: Wide customization options supported by the YH mould R&D team, including tooling for other mill brands.
Mould families & parameters
Laser & HF Pipe Welding Moulds
| Mould family | Size range | Steel grade | Tolerance | Hardness |
|---|---|---|---|---|
| Laser welding, round | Φ5 – Φ630 mm | Cr12MoV / SKD11 / D2 | Roundness ±0.05 – ±2.0 | 60–65 HRC |
| Laser welding, square | F10×10 – F400×400 | Cr12MoV / SKD11 / D2 | Flatness ±0.05 – ±2.0 | 60–65 HRC |
| Laser welding, shaped | F10×10 – F400×400 | Cr12MoV / SKD11 / D2 | Flatness ±0.05 – ±2.0 | 60–65 HRC |
| HF welding, round | Φ5 – Φ711 mm | Cr12MoV alloy steel | Arc ±0.02 mm | 60–66 HRC |
| HF welding, square | 10 – 1000 mm | Cr12MoV alloy steel | Diagonal ±0.02 mm | 60–66 HRC |
| Cold forming profiles | Custom sections | High-Cr MoV alloy | Per drawing | 60–66 HRC |
Mould manufacturing process
- 01Mould raw material
- 02Rough machining
- 03Drilling
- 04CNC precision machining
- 05Polishing
- 06Marking
- 07Heat treatment
- 08Bore grinding
- 09Finish machining
- 10Keyway cutting
- 11Final inspection
Source: YH official product brochure. Final mould design confirmed per project.
Common questions
- Laser welding moulds: round Φ5–630 mm, square and special-shaped to F400×400. HF welding moulds: round Φ5–711 mm, square 10–1000 mm.
- Key dimensions are 100% inspected: raw material, arc precision, hardness, thickness, base diameter, bore and keyway checks before delivery.
- Yes — tooling for other mill brands is part of the standard offer. Send the mill brand and model, the pipe size range, and the base diameter, bore and keyway your shafts accept. The tube mill roll design is matched to your frame and the new tube mill rolls are cut to those measurements, because a roller set is cut for a specific mill, not pulled from a catalogue.
- A tube mill reline machine order is built from measurements of the mill as it stands: the mill stays in service and the new rolls are cut to the measurements of the existing frame — the base diameter, bore and keyway the shafts accept — so the replacement roller set fits the machine you already run, whether it came from YH or another manufacturer.
Laser and HF welding moulds: what sizes?
What inspection does a mould get before delivery?
Can YH make rolls for a mill built by another manufacturer?
What does a reline order involve?
To quote this line, send 5 lines
Send Inquiry- 01Mill model or brand
- 02Pipe size range to produce
- 03Pipe shapes: round, square, rectangular
- 04Strip grade you run
- 05Roller wear photos, if available
Related guide
All guides →
PreviewTooling · 9 min
Roller and Mould Supply: What to Specify and Inspect Before Delivery
Tooling orders fail in the information you send or the checks you skip on arrival. The five inputs every quote needs, the inspection record to ask for, and how to make a re-order accurate.
PreviewTooling · 10 min
Tube Mill Mould Selection: Steel Grade, Hardness, Tolerance and Service Life
Bore, surface and keyway decide whether a mould runs clean. Work backwards from the finished pipe: family first, then steel grade, hardness and tolerance class — and only then price.
Other equipment
Get a tube mill quotation
Tell us your pipe spec — we will confirm the tooling & spare parts configuration for your product mix.