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    Thermal Insulation Panel Production: PU, Rock Wool, SIP

    ZTRFM Engineering Team · Encyclopedia of Roll Forming23August 19, 2026
    Thermal insulation panels are four metal-sandwich plants plus SIP. Double-belt PU ~4 m/min ~40 kW + optional heat; belt hard-foam ~2–6 / ≥35 kW; PU-edge ~90 kW whole-line; glue ~50 kW; 1220 mm EPS/RW named process quotation at 220 V. Keep each plant on its own quotation.
    Table of Contents
    1. Pick by core, not by the word panel
    2. PU full-core continuous
    3. Belt hard-foam is a different PU tier
    4. Rock wool / EPS composite
    5. SIP is a different plant
    6. Buyer FAQ
    7. Related topics

    1. Pick by core, not by the word panel

    The sandwich selection wiki starts from the core the finished panel must ship: thermal / cold-chain volume → PU continuous foaming; fire A1 mineral wool → rock wool (PU-edge continuous or glue); budget non-fire → EPS glue. Then open that page. A mixed plant (thermal rooms plus fire walls) is usually two configurations, not one hybrid number sheet. Cold-room PU is a further quotation on the sandwich solution sample; those speeds are not averaged with the rows below.

    Each core keeps its own speed table. PU-edge whole-line ~90 kW stays on the PU-edge plant. An upper-former ~12 m/min is a forming-side note, not whole-line glue capacity.

    2. PU full-core continuous

    Wiki (ZTXJP-class double-belt): decoil → form skins → heat → foam in a double belt (~24 m) → tracking saw. Best run about 4 m/min; design best about 5; decoiler design max about 10 (the decoiler design max is not the plant foaming speed). Installed about 40 kW plus optional heating about 90 kW. Footprint about 90 × 20 m, height > about 6 m. Face PPGL/PPGI about 0.35–0.8 mm; coil about 5 t; width max about 1250 mm. Upper forming unit about 600–1200 mm, about 14 rolls, shaft about ø50, about 5.5 kW cantilever class. Saw about 7.5 kW. Core thickness is not a universal public number on the main English quote — lock molds on the proposal.

    Some PU bills of materials list rockwool spray / edge / rectangular-wool handling. Confirm whether those units ship. This page is the PU full-core plant, not the PU-edged rockwool plant.

    3. Belt hard-foam is a different PU tier

    Belt-type rigid-foam (wiki variant, quoted separately from double-belt): line speed about 2–6 m/min; roll-press max about 15 m/min is a forming-side note, not the foaming speed; main power ≥ about 35 kW; face about 0.35–0.75 mm; effective width about 1000 mm; core tiers 35 / 50 / 75 / 100 mm. The 2–6 / ≥35 band and the double-belt 4–5 / 40(+90) band stay on their own sheets.

    4. Rock wool / EPS composite

    ConfigLabeled sourceKeep separate
    PU-edge continuousWiki: normal about 3–5 m/min, design max about 8; whole-line about 90 kW class (subunit motors may be ~10 kW — cite the config table); core about 50–100 mmThat ~90 kW is not the PU double-belt optional heat package
    Glue compositeWiki: about 5 m/min and about 50 kW; short-table alternate about 0–4 m/min — both valid by proposal; often manual core feed; panel about 50–250 mm~50 kW is the glue plant; PU-edge whole-line is ~90 kW
    Process-library EPS & rock wool lineFeed 1220 mm; 5 t hydraulic decoiler + car ×2; Ø80; 19 stands; TR4 emboss pattern; 16 bottom rolls; 45# shaft steel; Delta EN/ZH/AR/FR; 220 VTwo independent 5 t cars, not a dual-head turret. Not the 90×20 m PU hall

    The 40 kW PU installed figure stays on the PU row; the 90 kW PU-edge row is a different plant; 220 V and 380 V halls stay labeled to the nameplate.

    5. SIP is a different plant

    Structural insulated panels are typically OSB (or metal) skins with foam, pressed in a platen — not a continuous double-belt metal sandwich. There is no OSB SIP press quotation in this process library. If the drawing is metal-skin continuous sandwich, use the rows above. If it is OSB SIP, that press is outside this catalogue. The next encyclopedia is the SIP routing page.

    6. Buyer FAQ

    Can one line run PU, rock wool and EPS?

    Solution sample: EPS and rock wool share the example host. PU foam is a different quotation.

    Is 4 m/min the rock-wool speed?

    4 m/min is the PU full-core best-run figure. Belt hard-foam is 2–6. PU-edge is 3–5 (max about 8). Glue is about 5, with a short-table alternate of about 0–4 m/min.

    Is ~90 kW heat the same as rock-wool whole-line ~90 kW?

    No. On the double-belt PU sheet, ~90 kW is optional heat beside ~40 kW installed. On the PU-edge rockwool sheet, ~90 kW is a whole-line magnitude for a different plant.

    Are two 5 t decoilers a dual-head?

    No. Two skins, two cars. See dual-head decoiler encyclopedia.

    Double-belt PU / belt hard-foam / PU-edge / glue / 1220 mm named process quotation are five labeled sources. An OSB SIP press table is not published here. Commercial terms come back on the offer.

    References

    • ZTRFM wiki: Which sandwich line; PU continuous; PU speed tiers; Rockwool/EPS composite; Glue config; Sandwich boundary; RW vs PU mix
    • Process library: Continuous sandwich EPS & rock wool
    • This batch: SIP production lines explained
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