Quick Change Purlin Roll Forming Machine

The Quick Change C/Z Purlin Roll Forming Machine produces multiple C and Z purlin sizes from galvanized or carbon steel coil on a single, continuous line. Designed with an adjustable forming system, it enables quick profile size changeovers without replacing complete sets of fixed roll tooling.
By integrating inline hydraulic punching and automatic PLC-controlled cutting, this line allows purlin manufacturers and PEB (Pre-Engineered Building) steel structure fabricators to process custom profile dimensions, flexible hole patterns, and variable cut lengths efficiently.

Multi-Size C/Z Flexibility: Standard configuration covers a full family of C and Z purlins on one line, significantly reducing equipment footprint and capital investment.
Rapid Changeover System: Forming stations adjust web widths, flange dimensions, and lip sizes via calibrated manual, mechanical, or motorized positioning-eliminating full roller set replacements.
Integrated In-Line Punching: Precision hydraulic punching produces web and flange connection holes during the forming process according to programmed coordinates.
PLC Length & Motion Control: Encoder-based position tracking works with a centralized control unit to regulate feed rate, punching accuracy, and cutting lengths.
Engineering-Led Configuration: Roller profiles, station counts, shaft diameters, and hydraulic output are customized to exact profile drawings and yield strength requirements.

Manual Screw & Gauge Adjustment: Economic solution using calibrated mechanical counters and manual screws (30-45 minutes).
Semi-Automatic Digital Readout: Position sensors paired with digital displays for quick manual position alignment (15-20 minutes).
Fully Automatic Servo System: One-touch C-to-Z profile transition and size positioning controlled entirely via the PLC touchscreen (under 10 minutes).

Input material parameters dictate mechanical load, drive sizing, and roller geometry.
Compatible Coils: Galvanized, Pre-Galvanized, and Carbon Steel.
Thickness Range: 1.0–3.0 mm standard (custom heavy-duty lines available upon request).
Yield Strength Impact: Material yield strength directly affects forming station count, shaft diameter selection, and hydraulic shearing tonnage.
Strip Width Calculation: Developed coil width is pre-calculated based on profile geometry and neutral axis bend allowances.

Roll Forming & Frame Assembly
Heavy-duty machined steel base structure to minimize vibration during high-speed runs.
Precision-machined tool steel rollers with vacuum heat treatment for long wear life.
Concentricity-checked main shafts ensuring uniform bend angles and dimensional stability.

In-Line Hydraulic Punching
Integrated punch dies handle web holes, flange holes, and custom connection patterns.
Coordinates managed via PLC interface; multi-cylinder setups allow independent die selection during continuous feed.

Automatic Shearing & Length Control
High-resolution rotary encoder tracks moving profile length.
Post-cut hydraulic shear provides clean profile cuts without burrs or section distortion.

Tooling & Shaft Integrity: Roller dimensional precision, hardness testing, shaft concentricity.
Structural Alignment: Frame leveling, guide parallelism, forming station alignment.
Electrical & Safety Systems: PLC logic validation, sensor response, hydraulic pressure stability, CE emergency stop loops.
Trial Run Validation: Continuous trial forming under load to inspect profile dimensions, section straightness, hole alignment, and cut-length tolerance.

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