Bending sections – precise, repeatable, to drawing.
Straight sections are everywhere. It gets interesting when a frame, a ring or an arc is needed – dimensionally accurate, repeatable and without kinks.
stainlesstec bends sections and tubes in stainless steel and aluminium on a CNC section bending machine: from flat bar through angle, T and channel sections to tube. And where the right section does not exist at all, we roll it as a special profile using our own tooling.
Flat bar · angles · T-sections · channels · tubes · special profiles
The ARKUS12 PC400 at a glance
12 t
Bending force
0.01 mm
Accuracy
1–30 rpm
Speed, infinitely variable
500 Nm
Max. torque
ARKUS12 CNC section bending machine with PC400 control – automatic programming and in-process quality control.
CNC controlled: programmed, not guessed.
The PC400 control handles programming largely automatically and checks quality in process – while rolling is under way, not afterwards. Together with the infinitely variable speed that means the first arc of a run matches the last, and even a one-off is produced without lengthy trial and error.
In section bending, repeat accuracy is not a matter of feel but of control.
Sections and minimum radii at a glance.
A selection from our current tooling – a quick orientation for designers:
Section
Size [mm]
R min. [mm]
Flat bar
70/12
300
Flat bar, on edge
100/10
150
Square bar
30/30
150
Round bar
Ø 30
150
Angle
50/50/5
300–400 depending on orientation
Angle
60/60/7
400, several orientations
T-section
60/60/7
400
Channel
UNP 80
400, two orientations
I-beam
IPE 80
500
Tube
2″ (Ø 60)
300
Square tube
50/50/3
300
Rectangular tube
60/30/4
500
The minimum radii apply per section and orientation; material and grade can affect the result as well. And as always: a machine limit is not a component limit – for borderline cases we would rather look at your drawing than at a table value.
Special profiles: if your section does not exist, we roll it.
Not every design can be built from standard sections. For special cross-sections we use our own rolling tools and produce your profile to drawing – as a sample, a one-off or a recurring small batch.
That pays off wherever a section has a job to do: defined edges for seals, locations for add-on parts, or cross-sections that will weld cleanly later on.
If the right section does not exist, we make it.
Stainless steel and aluminium: bending is material work.
Section bending brings out the character of the material: stainless steel springs back to different degrees depending on grade, high-strength aluminium alloys tolerate tight radii less well than softer ones – and delicate visible surfaces need protecting during rolling. Both materials are our core business: springback, orientation and surface protection are considered during production planning.
A rolled ring is welded here too, a frame straightened and ground, an assembly put together completely – all the subsequent work stays in house. That way the radius is matched from the outset to whatever comes next.
Bent sections for machinery and plant engineering – dimensionally accurate and repeatable.
Rings and shells
Rolled sections as the basis for vessel and process equipment components.
Tube bows and handrails
Bent tubes with clean radii – including visible quality.
Special profiles
Special cross-sections to drawing, rolled with our own tooling.
Having a section bent: what helps us
A few details are enough for a quick assessment:
Type and size of section, e.g. angle 50/50/5
Material and grade
the radius you need – as a dimension, drawing or CAD profile
orientation of the section during bending, if specified
quantity and whether it will recur
tolerances and mating dimensions
planned further work such as welding, surface finishing or assembly
required delivery date
Not sure whether your section is feasible? Send us the drawing – we will check radius, orientation and tooling.
Let’s talk about your project.
Send us your drawing or CAD data by email – together with material, batch size and your requirements. We will come back to you with a sound assessment.
