Types for Carriage Cross Beam & Corrugated Floor Panel Roll Forming Lines

Carriage cross beams (Hat-type / Channel-type / Reinforced type): Mainly adopt standard double-end support structure with multi-roll cluster design and closed-loop high-strength steel dedicated production line, integrating punching, welding and cutting processes.

Carriage corrugated floor panels: Mostly apply cantilever type or standard type structure, equipped with wide-width multi-pass continuous forming and straightening & anti-bending integrated line.

Roll Forming Line for Carriage Cross Beams (Hat Beams & Beam Profiles)

Frame Structure Types

·Standard Double-end Support Type: Most widely used. Roll shafts are supported by bearings at both ends, featuring high rigidity and strong anti-deflection performance. Suitable for 2.0–4.0mm high-strength steel and manganese steel (700MPa grade), ideal for mass production with high precision requirements.

·Through-shaft Type: A full-length shaft runs through all working stations with excellent concentricity, perfect for high-precision symmetrical sections such as hat beams with reinforcing ribs.

·Quick-change Flexible Type: Adopts modular roll stands for fast specification replacement, fit for multi-variety and small-batch production of cross beams in different heights and widths.

Roll Shaft & Forming Features

·12–24 passes multi-roll cluster: Complex sections including hat shape, flanges and reinforcing ribs need progressive multi-pass forming to avoid material cracking.

·Closed-loop control & dedicated for high-strength steel: Equipped with on-line thickness gauge, width gauge and laser centering system, driven by servo motors, applicable to 1.5–4.0mm high-strength steel like 700L and 900L.

·Integrated production process: Uncoiling → Straightening → Servo punching → Roll forming → On-line welding → Fixed-length cutting → Collecting.

Typical Configuration

Material: Q235, 700L, 900L high-strength steel

Thickness: 1.5–4.0mm

Running speed: 8–15m/min

Forming passes: 14–20 passes

Drive mode: Independent servo / frequency conversion drive for each section

Roll Forming Line for Carriage Corrugated Floor Panels

Frame Structure Types

·Cantilever Type: The most common type. One end fixed and the other end suspended, easy for roll replacement and wide-width production ranging from 1200mm to 2500mm, mainly used for 0.8–2.0mm thin-gauge corrugated sheets.

·Standard Double-end Support Type: Higher overall rigidity, suitable for wide-width & thick-gauge sheets of 1.5–2.5mm and high-speed continuous production.

Roll Shaft & Forming Features

·Wide-width & few-pass continuous forming: Simple sine wave or trapezoidal wave sections only need 6–12 forming passes. Adopt central-first then bilateral forming process with low roller wear and high efficiency.

·Integrated straightening, forming and anti-bending function: 5–7 groups of straightening rolls eliminate internal stress of raw coils; middle corrugated forming rolls; rear anti-deflection roll sets prevent side bending and distortion of wide panels.

·Open-loop / simple closed-loop control: Lower precision requirement than beam lines, basic open-loop system with manual fine adjustment meets regular demand; high-end models are fitted with on-line deviation correction and tension control system.

Typical Configuration

Material: Q235, galvanized steel sheet, aluminum alloy

Thickness: 0.8–2.0mm

Processing width: 1200–2500mm

Running speed: 15–30m/min (faster than beam lines)

Configuration: 6–10 forming passes + 5–7 straightening passes

Comparison of Roll Forming Parameters Between Carriage Cross Beams and Corrugated Floor Panels