Z Purlin Roll Forming Line

1. Definition

A Z purlin roll forming line (Zed purlin machine) cold-forms coil into Z-shaped structural purlins for steel buildings. Roll geometry differs from a C-only mill. Industry notes often prefer Z sections for continuous/lapped roof members and steeper slopes; that is structural practice context, not a substitute for the project drawing.

Need both C and Z on one frame? That is a separate C/Z interchangeable inquiry — do not paste those ratings into a Z-only quote.

2. Typical process flow

1. Decoil
2. Level / feed
3. Punch (per drawing)
4. Roll form the Z section
5. Cut-to-length (stop-cut, flying saw, twist-break, or front-shear packages)
6. Exit / stack

3. Technical parameters (Automatic Z80–300 class)

4. Other configuration tiers

• Alternate packages may cite working speed about 8–10 m/min (excluding shear time), main about 15 kW, hydraulic about 5.5 kW, and thickness about 2.0–3.0 mm — different tier, do not merge into one false “standard”
• Gearbox / flying-saw / twist-break / front-shear options sit on the same Z-purlin family
• Market Z and C/Z pages commonly list about 1.2–3.0 mm and roughly 10–30 m/min bands — industry context only

5. Related machines

• C purlin line — separate roll set and product line
• C/Z interchangeable line — one machine, changeover between C and Z
• U channel line — structural U, not Zed purlin
• Light-gauge stud / track — different thickness and duty class

6. Applications

Roof (and related) Z purlins for steel structures; coil typically galvanized or carbon steel strip.

7. Buyer FAQ

Same machine as C purlin?

No. Ask for Z-only, C-only, or C/Z interchangeable explicitly.

Is front shear or rear stop-cut standard?

Both appear as configuration choices. Name which cut package is quoted.

Why is main power higher than some C baselines?

On the Automatic Z80–300 reference, main sits at about 18.5 kW versus about 15 kW on the Automatic C80–300 class — compare named tiers, not mixed documents.