z purlin roll forming machine, shapes steel via rolling

We specialize in the professional R&D and production of Z-purlin manufacturing machines. With years of immersion in cold-rolling forming technology, we draw on our robust technical expertise and extensive industry experience to craft high-performance forming equipment.

Our equipment features a fully automated control system, which precisely executes the entire process—from metal coil uncoiling and guided feeding to multi-pass roll forming and cut-to-length cutting. Through flexible parameter adjustments, it can adapt to the production requirements of Z-purlins with varying heights, thicknesses, and lengths, catering to diverse specifications.

We prioritize "efficiency and stability" alongside "precision and reliability." Our equipment supports continuous batch production, significantly boosting operational efficiency while ensuring stable output. Moreover, we strictly control forming accuracy, ensuring that the produced Z-purlins boast uniform cross-sections and precise dimensions, fully complying with the mechanical standards for roof and wall support systems in steel structures.

Whether for large-scale constructions such as industrial plants, logistics warehouses, and stadiums, or specialized applications like agricultural greenhouses and temporary sheds, our Z-purlin manufacturing machines deliver efficient and reliable production solutions. They strengthen the foundation of our customers' steel structure building materials processing businesses, helping them gain a competitive edge in the market.

The Purlin Roll Forming Machine is an automated forming device specifically engineered for cold-formed thin-walled steel purlins. Via a continuous rolling process, it gradually transforms metal coils (such as steel strips and galvanized steel sheets) into purlin profiles with specific cross-sectional shapes (including C-, Z-, U-, and H-shapes). These purlins are widely utilized in roof and wall support systems for steel structures.

I. Core Working Principle

The equipment employs multiple sets of forming rollers designed with preset cross-sectional curves to perform progressive cold bending on metal coils:

Coil Uncoiling: Coiled metal sheets are smoothly unwound by the uncoiler, with a deviation correction device ensuring precise feeding direction.

Guiding and Pre-forming: After being calibrated by the guiding mechanism, the sheet enters the initial forming stage, where edges or sections are pre-bent by several sets of rollers.

Multi-pass Roll Forming: This is the core process. The sheet passes through dozens of rollers with varying angles and shapes, gradually taking shape into the designed purlin cross-section (e.g., the inner hem of a C-shape or the inclined web of a Z-shape). The entire process involves no cutting or welding, relying solely on the plastic deformation of the metal to achieve 

Cut-to-Length: The formed continuous profile is precisely cut to the preset length using a flying saw or hydraulic cutting device, ultimately yielding individual finished purlins.

II. Core Features of the Equipment

Highly Automated: The entire process—from material feeding to finished product output—is fully automated. Equipped with a PLC system, it allows for parameter settings (such as cross-sectional dimensions, length, and speed), reducing manual intervention and enhancing production efficiency.

Adaptability to Multiple Specifications: By replacing roller molds or adjusting parameters, it can produce purlins with different cross-sections (C, Z, U, etc.) and dimensions (50-300mm in height and 1.5-5mm in thickness), meeting diverse construction needs.

High-Precision Forming: Rollers are crafted using precision machining techniques, ensuring minimal dimensional errors in each bending pass. The finished products feature regular cross-sections and high straightness, meeting steel structure load-bearing standards.

Continuous Production Capability: Supporting 24/7 operation, a single production line can achieve an hourly output of 100-300 meters, making it suitable for batch orders.

Strong Material Compatibility: It can process a variety of metal materials, including ordinary carbon steel, galvanized steel, and color-coated steel, catering to different performance requirements such as corrosion resistance and load-bearing capacity.

III. Application Scenarios and Advantages

Application Areas: Primarily used in steel structures like industrial plants, warehouses, gymnasiums, logistics centers, and agricultural greenhouses. They serve as the supporting framework for roofs and walls, bearing the loads of roof and wall panels as well as wind loads.

Core Advantages: Compared to traditional welding or cutting processes, roll forming maximizes material strength and minimizes waste (with a material utilization rate exceeding 95%). It also offers a short production cycle and low costs, perfectly aligning with the demands of modern steel structures for lightweight, efficient, and eco-friendly construction.

In summary, purlin roll forming machines are key equipment in the steel structure building materials processing industry. Their efficiency, precision, and flexibility ensure stable and reliable production of purlin support systems for various types of buildings.