Typical Process Flow of a Trapezoidal Roofing Sheet Line

1. Definition

A trapezoidal (IBR-class) roofing sheet line continuously forms angular trapezoid ribs from coil for roof or wall cladding. The logical shop flow is stable across vendors: uncoil → guide/feed → multi-pass roll forming → hydraulic cut-to-length → exit. Profile tooling, frame type (mid-plate vs guide-post vs gantry), and power tier change with the named quotation — the flowchart stays the same; the numbers do not.

2. Process and applications

1. Uncoiling — decoiler matched to coil ID / weight
2. Feeding / guiding — strip alignment into the first stands
3. Roll forming — trapezoid / IBR ribs formed across multiple passes
4. Length measure — encoder + PLC set length
5. Hydraulic shear — stop or flying cut per proposal
6. Exit — manual or automatic stacking

Guide-post structural hosts and mid-plate hosts share this logic but differ in frame and shaft sizing — confirm on the proposal drawing.

• Industrial and civil metal roofs and walls (factories, warehouses, halls)
• IBR-style angular fluted sheets in markets that specify IBR by name
• Not the process layout for double-layer roof/wall combo machines

3. Quoted configuration bands (mid-plate folder — keep separate)

Conflict call-out: do not average these three quotes into one thickness/speed/power band. Guide-post trapezoid and gantry/majestic profile quotes are other configurations — answer by named file, not a blended “standard trapezoid” number.

Industry context pages often advertise ~10–15 m/min or up to ~20 m/min with ~14–26 stations — use only as market background beside the named ZTRFM quote.

4. Boundaries

• Not a double-layer corrugated + trapezoid combo layout
• Not a glazed stepped-tile press cycle
• Not a standing-seam interlocking roof former
• Not a floor-deck effective-width line

5. Buyer FAQ

Is the process different for wall vs roof trapezoid?

Station order is the same. Drainage and rib height come from the profile drawing; do not invent a second flowchart.

Stop-cut or flying cut?

Both appear in industry lines. The named quotation’s cutter description wins; do not assume flying cut from a high m/min marketing number alone.

Can I mix 7.5 kW speed with 11 kW shaft?

No. Keep each quote’s thickness, speed, kW, and shaft as one row.