Typical Slotted Angle Roll-Punch Line Process Flow

1. Purpose

Produce slotted angle / shelf-angle strip with an integrated hole pattern and formed section in one continuous path. The exact station list follows the confirmed flow sheet — Chinese tech notes and English India quotations are not identical BOMs.

2. Chinese recommended short flow

1. Load / decoil
2. Feed strip into roll-punch entry rolls
3. Roll punch (hole pattern)
4. Discharge into the next station

Chinese recommended ratings on that path: ~25 mm × ~1 mm, ~50 m/min, main ~5.5 kW, shaft ~φ100.

3. English India quotation flow

1. Decoiling (~3T hydraulic auto decoiler language)
2. Feeding / guiding
3. Rotary punching (~15 kW; shaft ~φ150)
4. Roll forming (~11 kW; ~12 stands; shaft ~φ60)
5. Hydraulic cutting (~5.5 kW + servo ~3 kW)
6. Run-out tables (~3 m × 2 cited)

Working speed language ~0–60 m/min including cutting process — do not silently replace the Chinese ~50 m/min tier.

4. Decision gates before quoting

• Which flow sheet is active (Chinese short vs English full line)?
• Is the hole map rotary-capable or does it need CNC punch?
• Cut tolerance and exit table length required?
• Do not import post-punch-only line ratings into this flow.

5. Buyer FAQ

Why do motor splits disagree?

Chinese notes may show one main motor total; English India docs split punch, form, and cut drives — treat as variant, not a math error.

Is hydraulic cut always present?

On the English full-line flow yes; the Chinese short note centers on decoiler + roll-punch — confirm BOM.

Can Australian manual modes redefine the BOM?

No. Level/cut/rewind modes in the manual are operator options, not a second unique quotation.

6. Verification notes

• Publish only numbers that appear on the named FAQ / parameter sheet for this leaf.
• When two source documents disagree, list both tiers with labels — do not average.
• Host ratings stay separate from auxiliaries (curving, stacking, offline presses) unless the FAQ bundles them.
• Directory identity is fixed; open fields stay blocked until a proposal confirms them.