Revolutionary innovation in tube bending
The Numalliance group, which has specialized in the production of bending tooling for over 50 years, holds numerous patents relating to tube bending and deformation. The company continues to stand out for its innovations, and one of the latest is already having a significant impact on the world of tube bending.
Wrap-around bending - A preferred method
Among the various bending techniques, Numalliance favors coil bending. This method is based on several key elements:
The Bending Roller
The bending roller is the part around which the tube is bent.
- La Réglette
The strip has a long cylindrical groove to hold the tube during the bending operation, ensuring horizontal strength.
- The Tightening Jaw
The clamping jaw moves towards the bending roller to immobilize the tube in the groove and prevent it from slipping during the bending process.
- Fold Eraser (Optional)
The crease remover is an optional tool that prevents the formation of creases inside the tube during the bending process. It guarantees uniform material distribution and must be precisely adjusted by a qualified technician.
- Le Mandrin (Optional)
The mandrel is placed inside the tube, close to the deformation zone. It improves the quality of the handlebars by maintaining the outer part of the tube to avoid flattening and ovalization.
The bend eraser integrated into the bending roller - An award-winning innovation
Numalliance has developed a revolutionary bending roller with integrated bend eraser, which has won it worldwide recognition and a Global Industrie Award.
Elimination of set-up times
The integrated bend eraser eliminates tool settings, improving tool changeover times and the quality of parts produced.
Material and energy savings
The rigid design of the roller with integrated crease eraser considerably reduces wear, saving material and energy by reducing set-up and adjustment times.
Suitable for automatic changeover
Designed for integration into fully automated cells, this tool can be easily changed by a robot, meeting the requirements of Industry 4.0.
Numalliance wins Global Industrie Award
Numalliance was nominated and rewarded at the Global Industrie Awards in the “Production Technologies” category. His latest innovation was presented and defended before a jury of industrialists and journalists, and the trophy was presented to him by Nicolas Dufourcq, head of BPI, at the March 7, 2023 show.