A generic inquiry usually gets a generic reply — a brochure. The quotation becomes specific — a model, a configuration, an expected line speed, a layout — when the inquiry carries the inputs the engineering team uses to build it.
Below is that input list, split by machine family, with a note on which part of the answer each field changes.
Start with the contact form, then go deeper
The inquiry form on the /contact/ page asks for product category, pipe diameter range, wall thickness, material and quantity or number of lines and metres per month.
A free-text field catches everything else — target market, pipe standard, workshop length, or any other project detail. Diameter, wall thickness, material and the message box are required. Quantity is optional, but it is one of the most useful fields you can fill.
For a stainless steel line, add two inputs the form implies but does not spell out: the grade list you actually run, and the length of shop floor you have free.
The stainless category checklist lists exactly five inputs — pipe diameter range (min to max in mm), wall thickness range, material grades (SS201 / 304 / 316), planned output in metres per month, and available workshop length.
The product FAQ for the decorative mill says the same: with those five, the team confirms the mill model, line speed and layout.
That last point matters — the expected line speed comes back as part of your quotation, built from your spec, at the configuration stage.
If your range reaches past Φ219 mm, the large-diameter route applies. Size the inquiry for the biggest pipe first: send your maximum diameter and maximum wall thickness. The YH-150 is listed at Φ426–630 mm with wall up to 12.7 mm, and the question of whether a line can produce your largest size should be answered before discussing anything smaller.
Which field changes which part of the answer
| What you send | What it tends to decide |
|---|---|
| Min and max pipe diameter | Model class and sizing section |
| Wall thickness range | Strip handling, weld route, pass design |
| Grade (SS201, 304, 316 / carbon, low-alloy) | Roller profile and process assumptions |
| Metres per month and number of lines | Number of lines and model tier |
| Workshop length | Layout drawing and footprint |
| Pipe standard (HF lines) | Pass design and output target |
| Pipe shape and surface finish (laser lines) | Tooling set and post-weld finishing |
| Mill model or brand (tooling) | Pass design fit |
Footprint is not a rounding detail. The decorative mill models start from a 20 × 1.1 m layout (YH-S40) and go up to 36 × 4.0 m (YH-90). If your workshop is shorter than those drawings, the engineering team needs to know before it spends time on a layout.
Family checklists
Stainless steel tube mill
Diameter range, wall range, grades, metres per month, workshop length. For anything above Φ219 mm, lead with maximum diameter and maximum wall.
A brief description of the product — furniture tube, handrail, sanitary or industrial pipe — helps the team match your spec to the right line class within the stainless range.
Laser welding tube mill
The /laser-welding-tube-mill/ checklist adds two fields the stainless list does not carry: the tube shapes you make — round, square, rectangular or slotted — and the surface finish your market expects.
Both drive tooling and post-weld finishing. Along with them, send the tube size range, material grades and planned output in metres per month.
Laser welding is the route chosen when weld appearance and finishing cost matter — say whether slotted pipe or high-end decorative tube is the target so the proposal reflects the tooling that route needs.
High frequency (ERW) tube mill
The /high-frequency-tube-mill/ checklist is the most demanding because HF lines are chosen for speed: pipe standard to meet, pipe and wall range, material (carbon or low-alloy steel grade), target line speed and output, and available workshop length.
The published model tables carry a speed figure for each model — the 25 to 45 Mill rows show 100 m/min, dropping through 80, 70 and 70 m/min to 60 m/min, then 50 m/min and finally 40 m/min on the 219 Mill row — so your target speed and pipe range together point to a model and gearbox.
That is exactly how the HF product FAQ frames it: diameter range, wall thickness and target speed determine the model and gearbox configuration.
SS and laser lines do not publish a speed column in the same way. For those families, state your required output in metres per month, and the line speed will be confirmed against your specification in the quotation, not chosen from a table.
Tooling and spare parts
Tooling is quoted by a separate team and needs a separate list: mill model or brand, pipe size range to produce, pipe shapes (round, square, rectangular), the strip grade you run, and roller wear photos if you have them.
Tooling is made for other mill brands as well, so give the brand and model even if it is not a YH machine. See /tooling-spare-parts/ for the mould size ranges the team covers.
Attachments that cut round trips
Three attachments are worth more than a long email:
- A workshop sketch or plan. Rough dimensions, crane access, door widths. It lets the layout drawing start from your building, not a template.
- A pipe sample or your current spec sheet. Current tolerances and finish on the tube you sell are the fastest description of what "good" means for you.
- The pipe standard you must meet. Particularly relevant for HF lines serving structural or fluid service.
What happens after you send it
Engineers review the specification. If a detail is missing, they come back with questions rather than assuming a value. The configuration and quotation then follow, with mill model, expected line speed and workshop layout confirmed against your product mix.
Before dispatch, the line runs in on your pipe size as an acceptance test; you can attend or send a third-party inspector.
The current site content sets no reply-time commitment, so treat the inquiry as the start of a technical exchange rather than a quotation-on-demand button.
If you are still choosing between families, /products/ maps the lines.
If you already know which family fits, skip the browsing and send the spec directly through the /contact/ form — diameter range, wall range, grade, monthly metres and workshop length are enough for the first reply.