Zhongtuo SX20 Automatic C/Z Purlin Roll Forming Machine 3.0mm CZ Interchangeable Line

The SX20 C/Z purlin interchangeable roll forming machine is an upgraded and more versatile version of the SX10 model. By integrating pre-punching and pre-cutting functions, this machine significantly improves production efficiency while reducing material waste. It is specifically designed for manufacturers seeking a cost-effective yet high-performance solution for producing C and Z purlins with variable sizes.

In modern construction, steel structures have become the preferred choice due to their high strength, lightweight nature, and fast installation speed. As a result, C/Z purlins are widely used not only as roof and wall supports but also as structural components such as beams, columns, and bracing systems.

Flexible Profile Range

One of the biggest strengths of the SX20 machine is its fully adjustable profile capability. Users can easily produce a wide range of C and Z purlins without changing rollers.

• C Purlin
  • Width: 80–300 mm
  • Height: 30–80 mm
  • Lip: 10–20 mm
• Z Purlin
  • Width: 120–300 mm
  • Height: 30–80 mm
  • Lip: 10–20 mm

Additionally, the machine supports 90° and 135° angle forming, making it suitable for different structural requirements.

Production Process & Intelligent Control

The SX20 production line follows a highly efficient workflow:
Decoiling → Leveling → Pre-punching → Pre-cutting → Roll forming → Post-cutting → Product support

Thanks to the advanced PLC system, the machine can automatically:

• Control punching positions and spacing
• Adjust cutting length with high precision
• Count production quantity
• Store production parameters even after shutdown

Furthermore, operators can program multiple batches with different lengths, which allows continuous production without material waste.

Key Advantages and Features

First of all, the SX20 enhances productivity by shifting from traditional post-punching to pre-punching, which ensures more accurate hole positioning and smoother operation. At the same time, the pre-shear system allows cutting before forming, eliminating unnecessary scrap.

Moreover, the machine adopts PLC automatic control, enabling quick size changes between C and Z profiles with just one button. This feature greatly reduces manual intervention and improves operational efficiency.

In addition, the equipment is built with a robust structure and high-quality materials such as Cr12 rollers and blades, ensuring durability and long service life. The servo-driven system further guarantees stable performance and precise forming.

Technical Specifications

Wide Applications of C/Z Purlins

C and Z purlins produced by the SX20 are widely applied across various industries. For example, they are essential components in steel structure buildings, including industrial workshops, warehouses, and agricultural facilities.

In addition, they are commonly used in:

• Solar mounting systems
• Prefabricated buildings
• Logistics storage systems
• Highway guardrails and infrastructure
• Commercial and residential roofing frameworks

Because of their excellent load-bearing capacity and flexibility, these profiles are especially suitable for large-span and high-strength structural projects.

Overall, the SX20 Automatic C/Z Purlin Roll Forming Machine offers a perfect balance between efficiency, flexibility, and cost control. With its advanced pre-punching technology, automatic size adjustment, and durable construction, it provides manufacturers with a reliable solution for modern steel structure production.

If you are looking to improve productivity while maintaining high-quality output, the SX20 is a strong and practical investment for your business.