Tube bending for precise and complex tube geometries
Tube bending is a key manufacturing process for producing precise tube geometries in a wide range of industrial applications. Through targeted forming processes, complex shapes can be achieved without compromising the structural integrity of the material.
We utilise modern bending technologies to develop and manufacture functional and production-ready tube components – from prototypes to series production.
With currently over 19 bending machines, we can bend tubes ranging from 6 mm to 150 mm in diameter. Our modern machinery provides the ideal conditions for handling all types of tubes. Thanks to years of experience in tube bending, we have a wide range of bending tools available for all standard tube dimensions.
Thanks to our in-house design department and our own toolmaking facility, we are able to develop and mill the required forming dies at short notice. Adjustments can be implemented quickly, thereby reducing set-up times and efficiently optimising bending processes. By using turret tools on our tube bending machines, multiple forming jaws with different mountings can be held simultaneously. This makes it possible to carry out different bends in a continuous process without changeovers, which reduces set-up times and significantly increases efficiency and flexibility in production.
| 19 | ø 6mm | ø 150 mm | 0,8 x Rohr ø |
| Bending machines | min. Diameter | max. Diameter | Bending Ratio |
_____________________________________________________________________________________________________________________________
Mandrel bending for precise tube geometries
Mandrel bending is a high-precision process for producing complex tube geometries with tight bending radii and stringent requirements for dimensional accuracy and dimensional stability. The use of an internal mandrel stabilises the tube cross-section during the bending process and specifically minimises deformation.
Advantages of mandrel bending:
- high dimensional accuracy and dimensional stability
- minimised ovalisation and creasing
- precise realisation of tight bending radii
- consistent quality in prototype production and series production
The process is particularly suitable for technically demanding applications, for example in pipe systems and for complex components with high demands on function and load-bearing capacity.
Right/left bending on modern tube bending machines
Right/left bending enables the efficient production of complex tube geometries with alternating bending directions in a continuous manufacturing process. Modern CNC-controlled tube bending machines allow multiple bends to be performed precisely in different planes without the need for re-clamping.
This enables even demanding pipe runs to be manufactured economically and with consistent results. The process is particularly suitable for complex pipe systems where accuracy, repeatability and short lead times are crucial.
Bending with segmented and ball mandrels
For complex tube geometries, we rely on bending with segmented and ball mandrels. Both methods stabilise the tube cross-section during the bending process and enable precise results even with tight radii.
Segmented mandrel:
- flexible, segmented mandrel chain
- optimal adaptation to the bending radius
- consistent cross-section
- minimal material deformation
Ball mandrel:
- ideal for small diameters and tight radii
- localised support inside the tube
- reduced wrinkling and ovalisation
- controlled wall thickness distribution
Both processes are characterised by high dimensional accuracy and stable tube geometries. They enable the cost-effective production of complex components and ensure consistently high quality – both in prototype construction and in series production.