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    Process Library · Purlin / Channel / Beam

    C/Z Purlin Auto-Changeover Forming

    CZ automatic changeover purlin line switches between C and Z profiles with no manual roller change, using dual 6 t heads, 20 forming stands and three hydraulic prepunch stations - a standard…

    CZ purlin roll formingC Z auto changeoverpurlin pre punch

    What this process looks like

    One line owns the C-to-Z changeover and the prepunch cadence — a standard workhorse for high-mix purlin shops.

    Decoil

    Decoil

    Dual-head hydraulic6 t/head (12 t)· width ≤600 mm · ID 450–550 mm · OD 1730 mm · brake · electric rotate.

    Form

    Form

    20stands · Cr12 HRC58–60 · shaft 40Cr Φ90/75· chain drive · emboss rolls.

    Punch / cut

    Punch / cut

    Hydraulic pre-punch3stations · cut+punch power15 kW· tank 300 L.

    Specifications

    SKUCZ auto-changeover· decoil → level → hyd pre-punch → form → post cut → table.
    DecoilDual-head hydraulic6 t/head (12 t)· width ≤600 mm · ID 450–550 mm · OD 1730 mm · brake · electric rotate.
    Form20stands · Cr12 HRC58–60 · shaft 40Cr Φ90/75· chain drive · emboss rolls.
    Punch / cutHydraulic pre-punch3stations · cut+punch power15 kW· tank 300 L.
    Drive / VServo host42 kW· high32/ normal12–18 m/min·380 V / 50 Hz / 3φ.
    Gauge1–3.2 mmQ235/Q355 HR or GI · inkjet marking · 6 m table · Xinje PLC · ZH/EN UI.

    Operation steps

    Dual-head decoiler

    Dual-head decoiler

    Two 6 t hydraulic expand heads with brake and motorized rotation accept coil ID 450–550 mm.

    Level into punch

    Level into punch

    3-up/4-down solid plated shafts flatten the strip ahead of the prepunch stations.

    Hydraulic pre-punch

    Hydraulic pre-punch

    Three stations punch the web before forming; pitch follows the profile drawing.

    C/Z changeover

    C/Z changeover

    Auto recipe plus flange-angle adjustment on the Z lip — set in the HMI.

    Form 20 stands

    Form 20 stands

    Φ90/75 Cr12 stands with chain guards shape the profile; emboss rolls engage if specified.

    Cut, inkjet, 6 m

    Cut, inkjet, 6 m

    Post-cut with punch assist, length/part marking printed, finished parts land on the 6 m table.

    What's included

    This line

    Auto-changeover CZ purlin: dual-head 12 t class, 20 stands, 3 hydraulic prepunch, 42 kW servo, 1–3.2 mm, 380 V / 50 Hz.

    Standard build

    Automatic C↔Z width changeover with flange-angle adjustment, inkjet marking, full chain guards and PLC control.

    Key details

    Note 1

    C↔Z set takes about 90–120 s via the HMI recipe.

    Power & voltage

    Runs on380 V / 50 Hzas standard; other voltages can be specified on request.

    FAQ

    What material and thickness range does this line run?
    Dual-head hydraulic6 t/head (12 t)· width ≤600 mm · ID 450–550 mm · OD 1730 mm · brake · electric rotate.
    How fast does the line run and how is the sheet cut to length?
    Hydraulic pre-punch3stations · cut+punch power15 kW· tank 300 L.

    Related processes

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