If you build steel structures for a living, you already know: the right CZ purlin line pays for itself faster than a new pickup. I’ve toured a dozen factories this year, and the most asked question is simple—what’s actually worth buying? Below is a quick, honest briefing on the Automatic CZ purlin roll forming machine with pre punching and pre cut from YingYee Machinery (origin: Room B1106, Zhongliang Plaza, No.345 Youyi North Street, Xinhua District, Shijiazhuang, Hebei). To be honest, it’s a solid mid-market workhorse with some premium touches.
One machine, many profiles. The line auto-switches between C and Z without swapping cassettes—PLC drives the size change. It handles C (web ≈80–300 mm, height 35–80) and Z (web ≈120–300 mm, height 35–80). Many customers say the hands-off size change alone saved hours per shift. I guess that’s the point: more uptime, fewer fiddly adjustments.
| Product name | Automatic CZ purlin roll forming machine with pre punching and pre cut |
| Profile range | C: web 80–300 mm, height 35–80; Z: web 120–300 mm, height 35–80 |
| Material | Galvanized steel, cold-rolled steel, 235–550 MPa yield (ASTM A653, EN 10346) |
| Thickness | ≈1.2–3.0 mm (ask for 0.8–4.0 mm customization) |
| Forming speed | ≈10–18 m/min with pre-punch & pre-cut; higher with flying cut |
| Control | PLC automatic size change; HMI recipe library |
| Rollers | GCr15, vacuum hardened HRC 58–62; service life ≈8–12 years |
| Tolerances | Length ±1.0 mm/6 m; straightness ≤1 mm/m (typical factory test) |
Coil loading → leveling → servo pre-punch (slots/bolt holes) → roll forming → pre-cut → run-out table/stacker. Methods include burr control and die clearance tuning. Testing standards cited by serious buyers: ISO 9001 for QMS, EN 60204-1 for electrical safety, and ASTM A653 material certificates. In factory FAT, I saw runout deviations under 0.5 mm and hole-to-end accuracy around ±0.8 mm—respectable.
Advantages: quick profile change, consistent punching alignment, fewer scrap lengths. One contractor told me their crew cut installation time by ~12% thanks to cleaner slots.
| Vendor | Lead time | Warranty | Certs | After-sales | Price band |
|---|---|---|---|---|---|
| YingYee Machinery | 45–70 days | 15–18 months | ISO, CE | Remote + on-site (by schedule) | Mid |
| Vendor A (EU) | 60–90 days | 24 months | CE, EN 1090 | On-site, premium | High |
| Vendor B (APAC) | 40–60 days | 12 months | ISO | Remote-first | Value |
Options I’ve seen shipped: servo flying cut for speed; quick-setup hole libraries; embossing/branding; 5T–10T hydraulic decoilers; auto stackers; safety light curtains. For harsh sites, ask for IP54 panels and dust-proof cabinets.
If you’re comparing [Roll Forming Machines For Sale], check: material certificates, roller hardness reports, and a real FAT video with calipers on-screen. It sounds basic, but surprisingly many brochures gloss over it.
Certifications and standards to request: ISO 9001, CE declaration, electrical compliance to EN 60204-1, and material to ASTM A653 or EN 10346. Structural designers often ask for AISI S100 compatibility data for purlin tables.
Bottom line: for shops chasing dependable CZ output without a six-figure European price tag, this unit sits in the sweet spot. And yes, get spare punches and a roller care kit day one—you’ll thank yourself.
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