Automatic M Shape Purlin Cold Roll Forming Machine PLC Control M Shape Purlin

Overview

Automatic M purlin roll forming machine with M-shape profile cross-section reference

The Automatic M Shape Purlin Cold Roll Forming Line produces M-shape structural purlin sections from PPGI, PPGL, galvanized or cold-rolled steel coil. The coil is fed through a straightening and feeding unit, shaped progressively through a series of roller stations and cut to length by a hydraulic cutting unit. The line runs at up to 20 m/min and handles a maximum working width of 1000 mm.

The machine is built on a heavy-duty steel frame with a white and yellow finish. A PLC controller with a touch screen manages the forming and cutting sequence. The line is used by structural steel section producers, roofing and cladding contractors, and prefabricated building manufacturers.

• M-shape purlin forming from PPGI / PPGL / GI / GL / cold-rolled steel (CRC)
• Forming speed up to 20 m/min; max. working width 1000 mm
• Cr12 rollers on 45# high-grade steel shafts
• PLC control — imported brand controller with touch screen
• Hydraulic cutting unit; automatic length and quantity control
• CE / BV / STV / ISO certified

Key Features

• M-shape purlin profile. The line is tooled specifically for the M-shape (or modified M) purlin section used in structural roofing and cladding systems, producing sections with the connecting holes and variable web angle typical of the profile.
• Heavy-duty base frame. The forming bed sits on a welded structural frame (12 000 × 1800 × 2000 mm) rated for 8000 kg of machine weight, providing a stable platform for consistent section accuracy.
• Cr12 rollers on 45# shafts. Forming rollers are Cr12 material; shafts are 45# high-grade steel. Cutting blade material is Cr12 high-grade steel for extended service.
• PLC control with touch screen. Imported-brand PLC manages forming speed, cut length and piece count. The touch-screen operator panel is mounted on a yellow articulated arm for ergonomic positioning.
• Hydraulic cutting. A dedicated hydraulic unit drives the cutting station; the cut head swings to follow the strip and separates each purlin section to the programmed length.
• Wide material compatibility. Processes PPGI, PPGL, GI, GL and cold-rolled steel (CRC) coil.
• CE / BV / STV / ISO certified. Machine carries CE, BV, STV and ISO certifications; machinery test report and video outgoing-inspection are provided.

Technical Specifications

Machine Structure

The line runs left-to-right on a long white-painted steel base with yellow trim. Multiple forming stations carrying Cr12 rollers are arranged in sequence along the bed; the black-painted rolling heads are bolted to yellow-painted station frames. Toward the exit end, a swing-arm hydraulic cutting unit separates the formed purlin to length, followed by a run-out table. The PLC cabinet is mounted on a yellow articulated arm above the cutting zone so the operator can access the touch screen without leaving the machine.

Complete M purlin roll forming line showing the full row of forming stations and cutting unit

Side view of the forming station row with Cr12 roller sets and yellow station frames

Hydraulic swing-cut unit and PLC touch-screen arm at the exit end of the forming line

Side view of the hydraulic cutting unit, hydraulic power pack and motor assembly

Profile & Applications

M-shape purlin sections produced on this line are used as primary or secondary structural members in pre-engineered metal buildings, industrial sheds, agricultural facilities and commercial roofing systems. The M profile offers high section modulus relative to material weight. The line can produce plain sections or sections with connecting holes and slots punched in-line, depending on the tooling configuration.

M-shape purlin cross-section engineering drawings and 3D profile samples showing plain and punched variants

Customization Options

Delivery & Lead Time

FAQ

What profile does the machine produce?

M-shape purlin sections for building construction. The profile dimensions can be customized against a drawing or sample.

What materials can it process?

PPGI, PPGL, GI, GL and cold-rolled steel (CRC) with a maximum working width of 1000 mm.

What is the forming speed?

Up to 20 m/min, managed by the PLC control system.

Can the voltage be changed?

Yes. The standard voltage is 480 V and can be customized to the local supply at order confirmation.

What is the delivery lead time?

60 days for one set. Larger quantities are negotiated at the time of order.

What documentation comes with the machine?

CE, BV, STV and ISO certifications; a machinery test report and a video outgoing-inspection record are provided with the shipment.