- Tuo AI
- Live
- My Account
- Shopping Cart
- Inquiry Basket
- Contact Us
- Back to Top
TR4 Trapezoidal Roof Panel
Table of Contents
1. Definition
A TR4 panel is a single-skin trapezoidal roof sheet with four major ribs. It is the workhorse profile for painted steel roofs on industrial and farm buildings in much of Latin America.
2. TR4 vs TR5 vs TR35
| Variant | What it is |
|---|---|
| TR4 | 4 major ribs; this article and the linked machine. |
| TR5 | Different rib count and roll set; usually a cheaper, separate host. |
| TR35 | Thicker/faster class (up to about 1.0 mm on high-speed lines). Not this machine. |
One roll set makes one panel. Asking for TR4 and TR5 from one standard host means either two machines or a dual-layer line quoted from drawings.
3. How it is formed
Coil is decoiled, guided into 18–22 progressive stands, then hydraulically cut to length. Optional curving is a second machine after the host. See the process page for the step sequence.
4. What buyers should send
- • Profile drawing, or agreement to freeze the 1200→1000 mm board
- • Thickness window and coating (PPGI / PPGL)
- • Plant voltage and frequency
- • Whether eaves need curving
5. Buyer FAQ
TR4 vs TR5?
Two Latin-American trapezoid families, two roll sets. Confirm with a drawing.
One machine both?
No, unless dual-layer / tool change is quoted.
Voltage?
LATAM jobs use 220/380/440 V 60 Hz; confirm on the order.
Curving radius?
Electric 900–1800 mm; hydraulic 120–170°.
HMI language?
Spanish / English / Chinese on the standard TR4-S.
Lead time?
S-class 40–50 days after drawing freeze.
Price and lead time: contact us for a quote.
