The bending process of curtain wall aluminum profiles involves high technical difficulty, mainly in several areas:
- First, curtain wall profiles typically have a long length, which makes them susceptible to uneven distribution of bending forces during the bending process. Longer profiles may experience localized excessive or uneven bending, leading to a lack of bending precision, which in turn affects the overall structural stability and appearance of the profile.
- Secondly, the design of curtain wall profiles often requires multiple different bending radii, especially the transition between large and small radii. This complex bending requires high precision in both equipment and process to ensure consistent springback across different areas.
- Additionally, curtain wall profiles typically require precise, tight bending, especially in complex curtain wall designs, where tight bending is more challenging. Small radii bending can lead to cracking or deformation, impacting both the appearance and performance of the aluminum profile.
- Lastly, during the bending process, thin-walled aluminum profiles are prone to collapse or wrinkling, which can affect the surface quality. Since the surface of the aluminum profiles is usually treated with high-quality finishes such as anodizing, care must be taken to avoid surface damage during bending to preserve the surface finish.
Solutions of BIT
To address the challenges of bending curtain wall aluminum profiles, the PBA aluminum profile bending machine offers several innovative solutions. First, for longer curtain wall profiles, the PBA bending machine is equipped with a powerful support system that ensures the profile receives uniform support during the bending process, preventing localized deformation or uneven bending due to uneven force distribution. This system effectively controls the bending precision and ensures that the profile remains stable throughout the bending process without affecting its structural stability and appearance.
Secondly, the high-precision control system of the PBA bending machine provides precise adjustments for multiple radii and tight bending. The machine’s fine control algorithms can handle transitions between different radii, ensuring smooth transitions between large and small radii and preventing inconsistent springback. Additionally, the machine can perform tight radius bending with high accuracy, reducing the risk of cracking or deformation and ensuring that the bent profile has a smooth and refined appearance, meeting high-precision design requirements.
Finally, the issue of collapse or wrinkling during the bending process is effectively solved through the bending tools, which are carefully designed by BIT engineers (including internal support and side protection systems). These designs ensure that the aluminum profile does not undergo unnecessary deformation or surface damage during bending, especially when processing thin-walled profiles, effectively protecting the surface treatment of the aluminum profile. These technologies ensure that the PBA bending machine can efficiently solve the challenges of bending curtain wall aluminum profiles, maintaining stability in both precision and surface quality.
Curtain Wall Profile Bending Calculator
We provide a dedicated Curtain Wall Profile Bending Calculator to help you quickly assess bendability during the early design phase. By entering the profile width, the tool automatically generates theoretical bending radii, BIT-recommended values, and industry reference data—covering both easy and hard bending directions.
To support accurate and safe curtain wall profile bending, we offer two essential tools:
- Online Bending Radius Calculator Easily estimate recommended and theoretical bending radii based on your profile width and orientation (easy or hard way). This tool helps prevent cracking, wrinkling, and shape deformation before bending begins. 👉 Try the calculator now
- Minimum Roll Bending Radius Reference (PDF) Download a curated reference sheet showing minimum roll bending radii for common curtain wall profiles. 📄 Download the PDF here
These resources reflect both BIT’s practical bending experience and international industry references. Start your bending process with confidence and precision.