Internal Tube Bending Spring LOGO-Tools 25×2.5 mm and 26×3 mm, model 2,03

The internal tube bending spring LOGO-Tools 25×2.5 mm and 26×3 mm, model 2,03 is a steel support insert designed to prevent kinks and ovalization during bending of thin-walled metal tubes. Inserted inside the tube before bending, the spring keeps the tube cross-section stable and allows tighter bends with reduced risk of collapse. The tool is suitable for manual bending and for use with bending machines where internal support is required to achieve smooth, consistent curves.

Advantages

This internal bending spring provides internal reinforcement that reduces the likelihood of creasing or flattening when bending tubes with wall dimensions 25×2.5 mm and 26×3 mm. Its construction allows even distribution of bending stresses along the bending radius, improving the final shape and reducing rework. The spring is compact and easy to insert and remove, making it practical for repeated use on site or in workshop settings.

Suitable for

• Plumbing installations involving copper, steel or alloy tubes within the specified wall dimensions
• HVAC piping bends where kink-free contours are required
• Metalworking and fabrication tasks requiring precise, reproducible bends
• Field repairs and maintenance where manual bending is performed

Key specifications

• Compatible tube wall dimensions: 25×2.5 mm and 26×3 mm
• Design: internal helical spring for inside support during bending
• Material: spring steel (provides elastic support during bending)
• Use: suitable for manual and machine-assisted bending processes
• Removability: reusable; inserted and extracted after bending

How to use

Insert the spring fully into the tube so the support extends over the intended bending zone. Secure the tube in the bending tool or hold it firmly for manual bending. Perform the bend using steady motion, allowing the internal spring to support the tube wall and maintain roundness. After completing the bend and ensuring the desired radius and shape, slide the spring out of the tube. Inspect the bend for uniformity and make any minor adjustments as needed.

Usage recommendations

Use appropriate personal protective equipment and follow tool manufacturer instructions when performing bends. Match the spring size to the tube wall dimensions stated to ensure proper fit. For repeated or tight-radius bends, check the spring periodically for wear or deformation and replace if its elastic properties diminish.