C Purlin Forming Machine

CZ Purline Machine

CZ Purline Machine

C Purline and Z Purline Machine

As the dual-carbon strategy advances and photovoltaic power stations expand in scale, photovoltaic mounting structures—acting as the core support systems for solar modules—play a decisive role in determining construction quality and service life through their precision, production efficiency, and structural stability. Photovoltaic C-section steel has become the preferred mounting material for ground-mounted PV systems, commercial/industrial rooftop installations, and distributed PV projects due to its lightweight design, high strength, excellent adaptability, and ease of installation. The Solar Purlin Machine Photovoltaic C Channel Forming Machine is a fully automated cold bending equipment specifically developed for manufacturing these components, capable of continuous processing of metal strips. As a critical piece of equipment for industrialized and standardized production of photovoltaic steel structures, it provides essential support for cost reduction, efficiency improvement, and quality enhancement across the industry.

How the Device Works

The Solar Purlin Machine Photovoltaic C Channel Forming Machine utilizes the cold bending and rolling forming process.

The entire production process employs a continuous closed-loop operation mode, ensuring uninterrupted flow from raw material feeding to finished product discharge. A servo control system precisely regulates the operating speed of each stage, eliminating issues such as dimensional deviations and profile deformation associated with traditional segmented processing methods. Compared to conventional bending and welding techniques, cold forming offers lower processing stress, superior profile flatness, and stable structural strength, making it fully compliant with the stringent requirements for profile straightness, wind pressure resistance, and corrosion resistance demanded by photovoltaic mounting systems.

Structure and Composition of Core Equipment

The fully automated Solar Purlin Machine Photovoltaic C Channel Forming Machine features a modular integrated design, offering a compact structure and stable operation. Its core consists of eight functional units that work in synergy to achieve fully automated, unmanned production.

Decoiler andfeeding unit

Equipped with a fully automated hydraulic unwinding machine, it is compatible with various coil materials including conventional galvanized steel and Q355B high-strength steel. The system automatically performs coil fixation, tensioning, and uniform feeding, effectively preventing issues such as deviation and slackness while ensuring stable material delivery. It meets the processing requirements for mainstream photovoltaic steel products with thicknesses ranging from 1.5 to 3 mm.

Leveling and Correction Unit

The system employs a multi-roll leveling mechanism to precisely correct issues such as warping, deformation, and wrinkling that occur during sheet material transportation and storage, ensuring the strip material fed into the forming machine remains flat and uniform. This approach guarantees the flatness and straightness of finished profiles from the outset, eliminating defects like distortion or bending.

Servo punching unit

Equipped with a high-precision servo punching system, it allows for pre-setting of hole parameters according to photovoltaic mounting requirements and automatically performs precise punching of profile mounting holes and positioning holes, supporting various hole types including elongated holes, circular holes, and special-shaped holes. The punching accuracy is controlled within ±0.1 mm, ensuring uniform and symmetrical hole alignment without requiring subsequent secondary processing, significantly enhancing production efficiency.

Multi-pass forming machine

As the core forming unit of the equipment, it is equipped with multiple sets of Cr12MoV forming rollers that undergo special heat treatment, achieving a hardness of HRC 58–62, ensuring high wear resistance, durability, and extended service life. Through multiple stages of progressive bending forming, it eliminates issues such as profile cracking and stress concentration caused by single-bending operations, enabling stable production of photovoltaic-specific C-section steel profiles with various structures—including ribbed designs and lip reinforcements—and significantly enhancing their buckling resistance and wind pressure performance.

Precision Custom-Sized Cutting Unit

Utilizing servo-tracking flying-cut technology, the system enables continuous dynamic cutting without equipment shutdown, effectively resolving production delays and dimensional deviations caused by traditional stoppage-based cutting. The profile length can be freely customized according to project requirements, ensuring precise cutting length, smooth cuts free from burrs, and eliminating the need for grinding treatment; finished products are ready for direct installation.

Electrical Control Intelligent Management System

Equipped with a PLC-based intelligent touch control system, it features a simple and intuitive operation interface that supports one-click parameter setting, rapid specification switching, and real-time production data monitoring. The system includes automatic error correction, fault alarms, and overload protection functions, enabling real-time equipment status monitoring and immediate shutdown alerts in case of abnormalities to ensure safe and stable production. Additionally, it supports modular parameter storage for quick model switching across various profile specifications.

Material Discharge and Storage Unit

Equipped with automatic feeding, counting, and stacking systems, the finished profiles after forming and cutting are automatically discharged smoothly and stacked neatly. The system enables automated production quantity counting, reduces manual sorting and handling efforts, and meets the demands of mass production on assembly lines.

Core technological advantages of the equipment

High-precision molding, designed for stringent photovoltaic operating conditions

The equipment features a high-strength frame structure that ensures smooth operation without vibration or displacement, with profile dimensions, straightness, and distortion tolerances all exceeding industry standards. It can produce C-section steel profiles with lip-reinforced structures, effectively preventing localized buckling under pressure; this design reduces steel consumption by 15% while elevating the support’s wind resistance rating to Class 12, making it perfectly suited for the challenging operating conditions of outdoor photovoltaic power stations—including wind, sand, rain, snow, and strong winds.

Highly efficient automation that significantly reduces costs and improves efficiency.

The entire system enables fully automated continuous production from raw material unwinding to finished product discharge, requiring no manual intervention. Each unit can achieve a daily output of thousands of meters, with production efficiency significantly exceeding that of traditional modular processing equipment. The integrated molding process eliminates secondary steps such as punching, grinding, and alignment, substantially reducing labor costs and processing losses while effectively controlling the production costs of photovoltaic mounting structures.

Wide material compatibility and exceptional versatility

It is compatible with various specialized photovoltaic steels, including galvanized steel (1.5–3 mm thickness), Q235, and Q355B high-strength steel, and can produce mainstream C-shaped steel profiles in specifications such as 41×21 and 40×40. The product range covers multiple types—including standard channel profiles, slotted profiles, perforated profiles, and semi-slotted profiles—fully meeting the support profile requirements for diverse applications such as ground-mounted power stations, rooftop photovoltaic systems, and solar greenhouses.

Stable and durable, with low maintenance costs

All core wear-resistant components employ specialized heat treatment processes, ensuring that rollers and molds exhibit exceptional wear and corrosion resistance, significantly extending their replacement cycle, while maintaining low equipment failure rates and minimal operational noise. The entire system features comprehensive protective design, enabling long-term continuous operation in workshops with only routine lubrication maintenance required, resulting in low operational costs and making it ideal for regular production in large-scale chemical plants.

Intelligent and controllable, suitable for standardized production

The intelligent control system enables precise parameter adjustment and traceability of production data, facilitating standardized profile specifications and batch production with exceptional product consistency. It fully meets the standardized construction requirements for photovoltaic projects and promotes the standardized and industrialized development of the photovoltaic mounting bracket industry.

Main Application Scenarios

The finished profiles produced by Solar Purlin Machine Photovoltaic C Channel Forming Machines are widely used in various photovoltaic power generation projects and serve as the core equipment for photovoltaic support structure manufacturers. In large-scale ground-mounted photovoltaic power stations, the high-strength C-section steel generated by this equipment can be utilized as primary support beams and secondary purlins, ensuring long-term stable operation of the power station; for industrial and commercial building roofs as well as residential distributed photovoltaic systems, lightweight C-section steel is suitable for diverse roof installation scenarios, offering convenient construction and excellent load-bearing performance; it also enables customized support structure production for special applications such as photovoltaic agricultural greenhouses and fishery-photovoltaic hybrid power stations, meeting the varied requirements of photovoltaic engineering projects.

Industry Development Value

With the rapid development of the photovoltaic industry, market demands for photovoltaic mounting structures have continuously risen in terms of precision, strength, cost-effectiveness, and delivery efficiency. Traditional manual and semi-automatic processing equipment can no longer meet industrial requirements. Solar Purlin Machine Photovoltaic C Channel Forming Machine, leveraging its core advantages of high precision, high efficiency, versatility, and low energy consumption, has revolutionized the production process of photovoltaic mounting profiles, marking a transition from extensive processing to precision intelligent manufacturing.

This equipment not only significantly enhances the standardization of photovoltaic mounting bracket production and product quality while reducing construction costs for solar projects, but also minimizes steel resource consumption through lightweight high-strength profile forming technology. It aligns perfectly with the green and low-carbon development philosophy of the photovoltaic industry, making it a crucial core solution for improving quality, efficiency, and scaling up the entire photovoltaic supply chain.