Pre galvanized Omega Profile

The Pre galvanized Omega Profile by Shixinda factory utilizes fully mechanized fixed-length cutting and automatic punching processes, replacing welding with screw fastening – enabling quick assembly and easy disassembly for secondary reuse. It features excellent straightness and an aesthetically pleasing appearance, and can be customized with bending angles ranging from 0° to 30° to accommodate curved roof surfaces. It is widely used in light-gauge steel structure construction applications, such as greenhouse frames, photovoltaic mounting systems, and roof purlins as well as wall supports for industrial plants and warehouses.

Galvanized I-beam steel, also known as galvanized I-shaped steel, is a thin-walled structural steel product manufactured from high-quality hot-dip galvanized strip steel coils through a single-stage cold-bending rolling process. It is named after its cross-sectional shape, which resembles the character "I" (or is sometimes referred to as a "∏" -shaped or cap-shaped profile).

Practical Performance Testing

Galvanized coating performance test

Corrosion Resistance Testing

Salt spray test: A neutral salt spray (NSS) or composite salt spray test simulates coastal or industrial corrosion environments and determines the time required for red rust to develop. The salt spray life of hot-dip galvanized steel products is typically ≥1000 hours.

Humid-heat test: Accelerates corrosion under high-temperature and high-humidity conditions to assess the durability of the coating in moist environments.

Electrochemical corrosion testing: polarization curves and AC impedance spectroscopy to analyze the corrosion rate and protective mechanisms.

Corrosion depth measurement: Determine the depth of the corroded area using ultrasonic or mechanical methods to assess the remaining load-bearing capacity of the structure.

Dimensional and Geometric Accuracy Testing

Component load-bearing performance testing

Bending load-bearing capacity test: Apply three-point or four-point bending loading to determine the bending strength and mid-span deflection; verify whether these values are at least 1.05 times the design value.

Torsional load-bearing capacity test: Simulates the torsional loading condition on purlins to assess their resistance to torsion.

Stability performance test: Determines the local buckling and overall instability critical loads of thin-walled members under axial compression or bending-torsional loading.

Combined loading test: Simulates the composite loading condition of axial force + bending moment + shear force encountered in actual engineering applications.

Product Core Selling Point

ShixinDa Pre galvanized Omega Profile sections leverage mature cold-formed rolling technologies to address the practical challenges encountered in photovoltaic projects, greenhouse construction, industrial plant and warehouse projects, and other applications. Combining high strength with material efficiency, long-term corrosion resistance, scientifically designed structures, and easy installation, these products represent an ideal choice for modern steel structural frameworks.

High material efficiency and outstanding cost-performance ratio: Shixinda profiles feature a large cross-sectional moment of inertia, offering superior bending and compressive resistance; under identical load-bearing conditions, they can reduce steel consumption by 15%–20% compared to traditional C-section steel profiles. With lighter self-weight, these products effectively lower transportation, hoisting, and installation costs, while achieving higher steel utilization per unit output – helping projects precisely control their total material investment.

Hot-dip galvanized steel strips – double the corrosion protection lifespan: These strips are manufactured through direct cold-bending of hot-dip galvanized steel, resulting in a uniform, dense zinc coating with strong adhesion; the salt spray test duration is ≥1,000 hours, and the service life under conventional operating conditions can reach 1,520 years. Their corrosion resistance performance significantly outperforms that of painted or cold-galvanized steel sections, substantially reducing subsequent maintenance, repair, and replacement costs, thereby lowering the total lifecycle cost of the project.

The open cavity design prevents water accumulation and structural damage: its unique "J-shaped" opening ensures efficient air circulation, making it less prone to water retention or condensation buildup. This structural approach addresses the common issue of internal corrosion in square tubes, and its advantages are particularly pronounced in high-humidity environments – making it ideal for applications such as greenhouses and other damp settings.

Factory mechanized prefabrication boosts installation efficiency by 3 times – Shixinda's fully automated production line enables CNC precision cutting and drilling, producing ready-to-use components upon leaving the factory. On-site assembly is performed solely using screws, eliminating the need for hot-work welding; this approach increases construction efficiency by more than threefold compared to traditional welded frameworks, shortens project timelines, reduces labor costs, and allows the components to be disassembled, relocated, or reused.

Exclusive flanging structure ensures secure connection and enhanced resistance to wind掀动; the flanging process applied to both lower flanges increases the contact area with color-coated steel sheets and polycarbonate sheets, providing robust locking and reduced risk of slippage, thereby effectively improving the overall integrity of the roof, strengthening its wind resistance performance, and increasing the safety factor of the roofing system.

Customizable to meet specific requirements and widely compatible across various application scenarios; supports 0°–30° bending processing for curved roof surfaces; specifications, perforation locations, and coating thicknesses can all be customized according to drawing requirements. Widely used in diverse engineering projects, including photovoltaic mounting systems, greenhouses, factory roof trusses, storage warehouses, and more.

High forming accuracy and consistent surface quality – Shixinda's single-pass cold bending process ensures excellent profile straightness and a clean, attractive surface finish, along with high dimensional consistency across the entire batch. This approach balances structural performance with aesthetic appeal, meeting the quality acceptance standards required for mid-to-high-end engineering projects.