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    Solution Library / Sandwich / Composite Panel

    Insulated Panel Building Solution

    ZTRFM Solutions / Cold Roll Forming Solutions

    Metal sandwich for roofs and walls starts from the core. The example below is a continuous EPS / rock-wool line: 1220 mm feed, 19 stands, two 5 t hydraulic decoilers with cars, 220 V. PU foam, cold-room, glued panel and wood-skin SIP each open a different quotation.

    example specification on this pagePU quotation (about 4 m/min, installed about 40 kW plus about 90 kW heating, dual belt about 24 m, footprint about 90×20 m on that family sheet)about 2–6 m/min, ≥35 kW on that family sheetabout 3–5 m/min (max about 8), whole line about 90 kW on that family sheet — a different 90 kW from PU heating
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    Who it's for

    Panel plants that laminate two metal skins with EPS or rock wool in one pass, and buyers who need a clear fork before mixing PU, freezer panel, or OSB structural insulated panel.

    Core

    Name the core first

    EPS / rock wool share this example host. PU foam does not.

    Skins

    Two coils, two decoilers

    The example uses two independent 5 t hydraulic decoilers with cars.

    SIP

    Wood-skin SIP is another industry

    OSB + foam press is a wood OEM conversation. Send that drawing separately.

    How to choose a line

    1. EPS and / or rock-wool continuous metal sandwich -> example specification on this page
    2. PU / PIR continuous foam -> PU quotation (about 4 m/min, installed about 40 kW plus about 90 kW heating, dual belt about 24 m, footprint about 90×20 m on that family sheet)
    3. Belt hard-foam (not dual-belt PU) -> about 2–6 m/min, ≥35 kW on that family sheet
    4. Rock wool with PU edge -> about 3–5 m/min (max about 8), whole line about 90 kW on that family sheet — a different 90 kW from PU heating
    5. Glued sandwich -> about 5 m/min, about 50 kW (a short table also lists 0–4 m/min; the quotation decides)
    6. Cold-room / freezer panel -> cold-room package, ask separately
    7. OSB / wood SIP press -> wood-panel OEM; this page quotes metal sandwich
    8. Face sheet only, no core -> metal roofing or wall solution

    Example specification

    One delivered example. Final numbers follow your quotation.

    CoreEPS and rock wool
    Feed1220 mm
    InfeedHydraulic decoiler 5 t + car, two sets
    FormerShaft Ø80 / 19 stands / TR4 emboss / 16 bottom rolls / 45# shaft steel
    Power / HMI220 V; Delta; EN / ZH / AR / FR; cut, length and batch

    Line walkthrough

    1Dual decoil

    Dual decoil

    5 t + car ×2

    • 5 t + car ×2
    2Guide width

    Guide width

    1220 mm

    • 1220 mm
    3Core + lock

    Core + lock

    Tongue and groove

    • Tongue and groove
    4Ribs

    Ribs

    TR4 adjust

    • TR4 adjust
    5Cut

    Cut

    Length and batch

    • Length and batch

    Equipment matching

    StepModuleGuidanceRelated
    EPS / rock-wool metal sandwichContinuous sandwich1220 mm / 19 stands / dual 5 t / 220 VContinuous sandwich panel
    PU / PIR foamDual-belt PU line~4 m/min; ~40 kW + ~90 kW heating on that sheetDual-belt PU line
    Belt hard-foamHard-foam belt~2–6 m/min; ≥35 kWHard-foam belt
    Rock wool + PU edgePU-edge rock-wool line~3–5 m/min; whole line ~90 kWPU-edge rock-wool line
    Glued panelGlue line~5 m/min; ~50 kWGlue line
    OSB SIPWood press OEMSend the SIP drawing; no metal-sandwich press table on this pageWood press OEM

    What's included

    Core choice, one 1220 mm EPS / rock-wool example, PU / glued / cold-room as matching rows, SIP routed to wood OEM, and a quote checklist.

    What to send for a quote

    1. Core: EPS, rock wool, PU, glued, cold-room, or wood SIP
    2. Finished width, thickness and lock (tongue-and-groove vs other)
    3. Skin coil: coating, thickness, max coil weight (example uses 5 t ×2)
    4. Site voltage (example line 220 V)
    5. Output: m/min target vs panel length mix
    6. Whether roof and wall share one lock family
    7. If SIP: OSB thickness and foam type — that RFQ goes to a wood-press conversation
    Request a quoteContinuous sandwich panel

    Check before you quote

    90 kW

    Two different 90 kW figures

    PU heating on the foam sheet is not the same as whole-line ~90 kW on PU-edge rock wool.

    Decoil

    Two 5 t machines

    Sandwich skins are two independent 5 t decoilers, not a dual-head 4 t/side unit.

    SIP

    Metal sandwich vs wood SIP

    This example is metal skins + EPS / rock wool. OSB SIP uses a press OEM.

    FAQ

    Can one sandwich line run EPS, rock wool and PU?

    EPS and rock wool share this example host. PU foam is a different quotation.

    Is a SIP line the same as this mill?

    Wood-skin SIP is a press conversation. This page quotes continuous metal sandwich. Villa LGS frames are yet another host.

    How are price and lead time quoted?

    Send the quote checklist. Commercial terms come back on the offer.

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