About YH (YONGHUANG)
A laser pipe welding line & mould manufacturer in China
Foshan Yonghuang Intelligent Technology Co., Ltd. (YH) is a high-tech manufacturer specializing in the research, development and production of high-end precision laser pipe welding lines and laser pipe welding moulds. The company is also a Chinese manufacturer of stainless steel tube mills and high frequency (ERW) carbon steel pipe mills, plus the tube mill rolls, moulds and spare parts that run on them. In the trade the same equipment is quoted as a tube mill machine or a tube mill line; all of it is built in China at the YH factory in Foshan, Guangdong.
Laser welding is fast and efficient, but it brings forming challenges: scratches, wrinkles and fishtail marks. YH developed moulds purpose-built for laser pipe welding that solve these forming problems, helping pipe producers raise product quality, raise output per shift and cut production cost.
What we supply
- 01High-end laser pipe welding lines: smart laser precision machines from Φ8 to Φ219 mm.
- 02Stainless steel pipe welding machines: smart precision, industrial precision and reinforced general-purpose lines.
- 03Carbon steel high frequency (ERW) pipe mills: 13 models from Φ8 to Φ219 mm.
- 04Laser welding tube moulds for round, square and special-shaped tube.
- 05Roller sets, wear parts and tooling matched to your mill model.
How we work
Customer satisfaction, employee satisfaction, shareholder satisfaction.
To contribute to the pipe welding equipment industry.
Pipe welding equipment, built for the world.
Innovation, quality, service, continuity.
Create value, win through cooperation, develop sustainably.
Treat quality as life, pursue perfection continuously.
How an order runs
- 01
Spec review
You send pipe diameter range, wall thickness, material and output. Engineers confirm the mill model and layout.
- 02
Manufacturing
Rollers machined and the line assembled in-house, with progress documented.
- 03
Run-in on your spec
Acceptance test runs on your pipe size. Third-party inspection welcome.
- 04
Delivery & installation
Export packing, guided commissioning online, spare roller supply after handover.
What the run-in covers
For pipe and tube mills, the line is tested on the buyer's own pipe size before dispatch. The acceptance report is agreed in advance, so the inspector has something to sign: the model and configuration as quoted, the pipe sizes tested at both ends of the model row, the material grade and strip width, the instruments demonstrated on the run, the 100% key-dimension inspection sheet for the roller sets, and short operator notes on how the line behaved at each size.
Where the line carries them, eddy-current testing, inkjet marking, weld current tracking and the defect log are demonstrated during the run. Guided installation online then continues until the first pipe runs.
Inside the factory
ASSEMBLY · MACHINING · DISPATCH
Get a tube mill quotation
Tell us what you produce — we will confirm what equipment fits your plant.