Fully Automatic M Purlin Roll Forming Machine with Hydraulic Cutting for Steel Roofing and Wall Purlins

Against the backdrop of the continuous evolution of steel structure buildings towards lightweight and high-strength globally, M-shaped purlins are becoming the preferred material for roof support systems in large industrial plants, logistics warehouses, and large-span buildings due to their unique cross-sectional geometry and excellent mechanical properties. The M Purlin Roll Forming Machine, as the core equipment for producing this type of purlin, helps global steel structure manufacturers achieve dual improvement in production capacity and quality with its high-precision forming, high-speed production, and excellent structural stability.

What is M-type purlin forming machine?

The M Purlin Roll Forming Machine is an efficient cold bending equipment designed to gradually roll metal coils into M-shaped steel purlins through multiple precision arranged rollers. The equipment continuously bends steel coils or plates at room temperature, and finally processes steel products with M-shaped profiles.

The equipment usually consists of hydraulic uncoiler, feed leveling device, forming host, online punching system, hydraulic shearing system, and PLC control system, which can achieve fully automated production from coil feeding to finished purlin output. The workflow is: uncoiling → guiding → leveling → forming → punching → cutting to length → finished product output.

Application Areas：

The M-shaped steel produced by the M-shaped purlin forming machine is widely used in multiple construction and engineering scenarios:

• Industrial buildings:
roof and wall support systems for steel structure factories, logistics warehouses, manufacturing workshops, and distribution centers

• Large span buildings:
Roof bearing structures for sports halls, exhibition halls, theaters, aircraft hangars, and other buildings that require large-span column free spaces

• Commercial buildings:
Roof and wall purlin systems for supermarkets, shopping malls, agricultural greenhouses, and other buildings

• Infrastructure:
The anchor beam support structure in the mining roadway support system, combined with M-shaped steel and anchor rods to form a load-bearing system, effectively controls the roadway roof, and is particularly suitable for fractured rock and composite rock conditions

• Industrial manufacturing:
Manufacturing of structural components for equipment such as cranes and conveyors, as well as heavy-duty cargo turnover pallets and large storage shelves

Product Attributes :

Pattern diagram:

Core Advantages：

1、 Ultra high stiffness and strength
The unique geometric structure of M-shaped cross-section greatly enhances the bending resistance of steel. After cold bending, the bending section modulus of M-shaped purlins can be increased by 37 times, the stiffness can be increased by about 70 times, and the cold rolling hardening effect can also increase the tensile strength by 12% -15%. This performance advantage makes M-shaped purlins an ideal load-bearing component for large-span steel structure buildings.

2、 High precision molding
The equipment adopts multi pass progressive forming and real-time precision calibration technology. Through a 24 pass progressive cold rolling system, the metal deformation stress is dispersed to all passes. Combined with a proprietary arc-shaped roller profile, the fillet transition accuracy between the M-shaped steel flange and web plate reaches R ± 0.1mm, effectively solving the common problems of edge cracking and cross-sectional deformation in traditional systems. The online laser measurement system continuously monitors the cross-sectional dimensions, controlling the height error within ± 0.2mm and the flange width within ± 0.15mm.

3、 High speed production
Depending on the configuration, the production line speed of the M-type purlin forming machine can reach 0-20 meters per minute, and the high-performance version can even reach 60-70 meters per minute. The equipment adopts a sprocket/gearbox transmission system to ensure stable output under high-intensity continuous operation.

4、 Online punching and intelligent sizing
The equipment supports online hydraulic punching, which can synchronously complete the processing of holes and slots during the forming process, reducing secondary processing steps and improving overall production efficiency. The punching accuracy can reach ± 0.1mm, and the length tolerance for fixed length cutting is ± 0.5mm. Medium frequency induction straightening and fixed length flying saw cutting can achieve customized production of 3-12 meters in length, with a verticality error of less than 0.3 °.

Frequently Asked Questions (FAQ)：

Q1: What specifications of purlins can be produced by the M-type purlin forming machine?

The equipment can produce M-shaped purlins with a cross-sectional height of 120-350mm and a thickness of 1.5-4.0mm. By replacing the gasket, flexible adjustments can be made to different width specifications such as 10mm, 20mm, 40mm, 60mm, etc. We can also customize the production of Sigma, C-type, Z-type and other purlin sections according to customer needs.

Q2: How to ensure the forming accuracy of the equipment?

Precision assurance comes from three aspects: precision machining and quenching treatment of rolling rolls (GCr15 bearing steel, HRC58-62) to ensure accurate forming contours; The 12 pass progressive cold rolling system disperses deformation stress and achieves a fillet accuracy of R ± 0.1mm in conjunction with the curved roller profile; Real time monitoring and adjustment of production parameters through online laser measurement and PLC closed-loop control system, with punching accuracy of ± 0.1mm and cutting tolerance of ± 0.5mm.

Q3: Does the M-type purlin forming machine support automatic size switching?

Yes. The device provides two configurations: manual size switching type, which adjusts the specifications of the purlins through gaskets, suitable for fixed or limited production needs; The automatic size switching type adopts PLC control, which can complete size switching within 2-5 minutes, suitable for factories with frequent order changes and multi specification production.

Q4: What voltage and power standards does the device support?

The equipment can be customized with voltage configuration according to the power grid standards of the customer's country, supporting different voltages such as 220V, 380V, 415V, 440V, etc. The frequency can be selected as 50Hz or 60Hz, and it is a three-phase power supply.

Contact Us：

From the roof support of industrial plants to the load-bearing structure of large sports halls, from the wall system of logistics warehouses to the support engineering of mining tunnels, M-shaped purlins are serving an increasing number of construction and engineering projects worldwide with their excellent structural performance and economic benefits. A reliable and accurate M-type purlin forming machine is the core equipment for steel structure manufacturers to seize market opportunities and enhance competitiveness. If you need equipment solutions and quotations tailored to your specific needs, please feel free to contact us at any time.