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30T CNC Cut-to-Length Line: Thickness Limits and Shear Rating Notes
Table of Contents
1. Definition
A 30T CNC cut-to-length line is a medium-sheet CTL configuration sized for coil about 30 T, with CNC length control and hydraulic shear. It sits between light JPX-3 thin/aluminum class and JPX-10 heavy-plate class. The page exists because the same quotation may list a line working thickness and a shear maximum cut thickness that are related but not identical.
Do not force one public thickness number when the FAQ shows both bands. Final authority is the signed technical proposal.
2. Process and applications
Reference process on this tier:
- Coil loading / uncoiling for ~30 T coils
- Leveling (leveler main about 45 kW on the FAQ)
- CNC length measuring / feed
- Hydraulic shear
- Stacking or discharge
Applications. Plants cutting carbon or coated coil into flat blanks in the about 1–5 mm working band at widths about 750–2000 mm. Typical buyers need heavier coils than JPX-3 (≤6 T) without stepping into JPX-10 heavy-plate speed/power.
3. Reference parameters
| Item | Documented reference |
|---|---|
| Working thickness (line) | About 1.0–5.0 mm |
| Shear maximum cut (table) | About 6.0 mm — may differ from line process limit |
| Width | About 750–2000 mm |
| Coil weight | About 30 T |
| Speed | About 3–15 m/min |
| Leveler main motor | About 45 kW |
| Controls | Mitsubishi PLC class; Heidenhain encoder class on that quote |
Publish the working band and the shear note side by side. Never average 5.0 and 6.0 into a single “about 5.5 mm” marketing claim.
4. Boundaries (related machines)
- JPX-6×1600 — About 1–6 mm, ≤30 m/min, leveler ~55 kW DC — different tier; do not paste into 30T CNC answers.
- JPX-10×1600 — About 3–10 mm heavy plate, ≤20 m/min, leveler ~110 kW DC.
- Simple flat CTL — Point values 3 mm × 1500 mm, 0–15 m/min, leveler ~7.5 kW — not a 30T substitute.
- JPX-3×1500 — About 0.5–3 mm, coil ≤6 T — different coil and thickness story.
- ZHJ combined lines — Slit + CTL integration; not this 30T CNC host.
5. Buyer FAQ
Is the line rated to 6 mm because the shear says 6.0 mm?
Not automatically. FAQ working thickness is about 1.0–5.0 mm while the shear table may list maximum cut about 6.0 mm. State both and lock the effective limit in the contract.
Can I reuse JPX-6 or JPX-10 numbers for a 30T CNC inquiry?
No. Leveler power, speed band, and width envelope differ. Answer only from the 30T CNC FAQ tier.
What coil weight should I quote publicly?
About 30 T on this reference. Confirm ID/OD and decoiler type on the proposal before promising handling hardware.
Which PLC / encoder brands appear on the source quote?
Mitsubishi PLC class and Heidenhain encoder class are cited on that FAQ. Treat brands as quote-specific, not universal factory standards.
Final ratings follow the confirmed technical proposal. Price and lead time are out of scope.
References
- CTL-30T-1-5-2000 thematic FAQ (thickness vs shear Q4/Q5)
- Industry CTL process context: Metal cut-to-length line overview