At IMetal Group, our high-speed cold-rolling mills produce precision-engineered Z and C profiles that serve as the critical secondary framing for modern steel buildings. These members are the “connectors” of a structure, bridging the gap between the primary steel frame and the exterior skin to ensure uniform load distribution and long-term alignment.
The C-Profile (or C-Purlin) is the versatile workhorse of secondary framing. Shaped like the letter ‘C’, these members are primarily used for wall girts, door frames, and roof purlins in simpler, single-span structures. IMetal Group’s C-profiles are rolled from high-tensile galvanized steel, providing a high strength-to-weight ratio that allows for easy manual handling on-site while maintaining the structural rigidity required to support heavy cladding loads.
For large-scale industrial projects, our Z-Profiles offer a distinct engineering advantage. The unique asymmetrical shape allows the profiles to be “lapped” or nested at the supports. This nesting creates a continuous beam effect across multiple spans, which significantly increases the load-bearing capacity compared to simple spans. By using IMetal Z-profiles, engineers can achieve greater distances between primary frames, leading to a more economical and efficient use of steel.
Accuracy is paramount during the erection phase. Our cold-rolling lines are integrated with automated CNC punching systems that pre-drill bolt holes according to your project’s specific shop drawings. This ensures that every purlin and girt fits perfectly onto the primary cleats without the need for dangerous and time-consuming on-site drilling. We offer a wide range of web depths (from 100mm to 300mm) and thicknesses to meet the exact stress requirements of your design.
All IMetal Group cold-formed profiles are manufactured from pre-galvanized steel coils with high zinc coating mass (typically $120\text{–}275 \text{ g/m}^2$). This provides built-in atmospheric corrosion protection, which is vital for members that are often hidden behind cladding where maintenance is difficult. Unlike traditional hot-rolled angles or channels, our cold-rolled profiles do not require additional painting or treatment, saving you both time and labor costs during construction.
As a premier provider, we are committed to delivering reliable, innovative, and efficient solutions tailored to empower modern industries. Our team is ready to assist you with professional advice, project inquiries, and customized solutions. Reach out to us now and let’s build a stronger future together.
