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Glue Configuration of a Rockwool / EPS Composite Panel Line
Table of Contents
1. Definition
This article covers the glue configuration inside the rockwool / EPS composite panel line family. Steel faces are bonded to EPS or rockwool boards with adhesive spray and heat, then cut by flying saw — not by filling the core with high-pressure polyurethane foam.
It shares the composite family with PU-edge continuous rockwool, but uses a different process option and a different rating table.
2. Process and applications
- Uncoiling (recommended quote lists about 5 T manual decoilers ×4 class)
- Top-sheet roll forming (roof trapezoid customizable)
- Glue spray and infrared heating composite with bottom sheet and core
- Flying-saw cut-off
- Product tables (about 3 m class ×2 on the reference quote)
Core boards (EPS or rockwool) are often manually fed into the composite section on the documented quotation.
Applications. Economical insulated roof / wall panels where pre-cut foam or mineral-wool boards are acceptable. Not a substitute for continuous PU full-core cold-room foam lines when the buyer needs injected polyurethane cores.
3. Reference parameters (glue configuration only)
| Item | Recommended reference | Same-family short-table alternate |
|---|---|---|
| Composite / line speed | About 5 m/min | About 0–4 m/min |
| Top forming work speed (side note) | About 12 m/min on the upper roll station — not whole-line composite speed | — |
| Total power | About 50 kW | About 28 kW |
| Envelope / mass | About 40×2.5×2.8 m; about 10 t | Total length about 33 m on short table |
| Skin / coil | PPGI about 0.4–0.6 mm; coil width ≤ about 1250 mm | — |
| Panel / interlayer thickness | About 50–250 mm per customer requirement | About 50–150 mm adjustable |
| Upper host (reference) | About 14 stands; shaft about ø80; main about 3 kW; chain drive; 350# H-beam frame | — |
| Cut-off | Flying saw; cut motor about 5.5 kW; Delta-class PLC / HMI | — |
Publish both power/speed tiers side by side — do not force one unique number.
4. Boundaries
- PU full-core continuous foaming — Best about 4 m/min; installed about 40 kW (+ heat option). Different class.
- PU-edged rockwool continuous — Normal about 3–5 m/min; whole-line about 90 kW. Do not reuse that table here.
- Belt hard-foam PU variant — About 2–6 m/min; ≥35 kW; core tiers 35/50/75/100. Not glue bonding.
- Do not average 50 kW with 28 kW, or 5 m/min with 0–4 / 12 m/min station notes, into one silent band.
5. Buyer FAQ
Is this a continuous PU foaming line?
No. Cores are EPS or rockwool boards bonded by glue and heat. There is no high-pressure full-core PU injection as the main process.
Why do documents show both 50 kW and 28 kW?
They are same-family tiers (recommended English quote vs short parameter table). Name which proposal applies.
Is 12 m/min the production line speed?
No. About 12 m/min is an upper roll-forming station work speed on the quote. Composite line speed is about 5 m/min on the recommended tier.
Same as PU-edge rockwool 90 kW?
No. PU-edge continuous is another configuration. Keep glue ~50 kW and PU-edge ~90 kW separate.
Final ratings follow the confirmed glue-configuration proposal. Price and lead time are out of scope.
References
- SANDWICH-EPS thematic FAQ (Q4–Q9 process, speed, power, thickness)
- Related encyclopedia: sandwich boundary; rockwool/EPS composite overview
- Industry EPS glue-line context: Automatic EPS sandwich panel production line overview