Innovation · Steering systems
The world's most flexible & sustainable tube
FLEXtube is the new, sustainable solution that keeps your steering column flexible. Instead of costly drawn tubes, a flexibly usable bend tube is employed – with noticeably lower CO₂ emissions and a more efficient process. The result is the most flexible and at the same time most sustainable tube for modern steering systems.
Defined bending forces and flexible geometries – tailored to the requirements of modern steering systems.
Bending forces are tailored to customer requirements, allowing the steering column to bend in a controlled way in a crash.
The bend tube replaces complex hydroformed corrugated tubes. A more efficient manufacturing process reduces CO₂ emissions compared with this conventional approach.
Modern forming replaces complex production, saves cost and weight, and offers flexible usability. Ideal for combining with speedFORMING.
Bending angles up to 180° – ideal for movable steering columns and demanding installation spaces.
Want to cut weight, cost and CO₂ in your steering column? Talk to us about using FLEXtube in your application.
A tube matched to the application forms the starting point.
The functional FLEXtube geometry is formed without hydraulic internal pressure.
Geometry and function are verified without the complex convolution-forming chain.
Form strip into a tube and longitudinally weld it, or use a suitable drawn tube.
Depending on material and forming degree, an annealed preform or heat treatment may be required.
High internal pressure forms the sealed tube into a pre-convolution.
The die closes axially and turns the preform into the final convolution.
Geometry, tightness and function are checked; further finishing may follow.
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