Curved solutions › Curved aluminium products
Curved aluminium products
Aluminium profiles bent in 2D and 3D, machined and ready to assemble.
01
Co-engineering from the first design
02
Bending aluminium in 2D and 3D
03
Machining, welding and assembly
04
Heat and surface treatment
From design to finished part
Aluminium asks for care. It springs back, marks easily and every alloy behaves differently. That is why we bend it in a separate, clean non-ferrous production, where roll, stretch and mandrel bending, 5-axis machining and assembly come together.
Co-engineering from the first design
Share your design early and our engineers check bending radius, alloy and tolerances before production starts. Problems are solved on paper, not on the shop floor.
Bending aluminium in 2D and 3D
Roll bending for large radii, stretch bending for smooth and accurate curves, mandrel bending for tight bends in hollow profiles. In one plane or in 3D.
Machining, welding and assembly
After bending, 5-axis machining adds holes, cut-outs and end cuts. We weld and assemble the parts as well, so you receive a component that is ready to install.
Heat and surface treatment
Heat treatment restores strength after bending. Surface treatment gives the finish your application needs.
When customers come to us
“We have aluminium extrusions that need a tight bend without marks on the surface.”
We bend in a clean non-ferrous production, so the surface stays intact.
“Our aluminium profile needs a 3D bend and has to be machined afterwards.”
We bend and machine in one place, so the part arrives ready to assemble.
“Our design isn’t final yet, but we want to know early whether it can be bent.”
Send us your sketch and our engineers check feasibility first.
Projects with curved aluminium products
01 / 06
All projects →
All industries
Architecture
Mobility
Medical
Specifications & certificates
Alloys
On request
Profile types
On request
Maximum length
On request
Minimum bending radius
On request
Tolerances
On request
Indicative. Often more is possible.
Certificates
ISO 9001:2015
Quality management
EN 1090-2 EXC4
Execution of steel structures
EN ISO 3834-2
Quality requirements for welding
Frequently asked questions
It depends on the alloy, the profile shape and the wall thickness. Mandrel bending allows tight radii in hollow profiles, while roll and stretch bending suit larger radii. The capacity sheet shows our standard limits per profile type. Close to the edge? Send us your drawing: often more is possible.
Yes. We bend aluminium profiles in one plane (2D) and in several planes at once (3D). A 3D bend can be combined with 5-axis machining, welding and assembly, so the part leaves our non-ferrous production ready to install.
We bend the common extrusion alloys, but each one behaves differently: some spring back more, others need heat treatment after bending to restore their strength. State the alloy and temper on your drawing and we will advise on the best technique.
Your contact
Have a curved part in mind? Tell us what you need.
◎ Based on your location: Netherlands
Change region →
Martijn Rozemeijer
Sales Manager - Kersten Netherlands
mrozemeijer@nl.kerstengroup.com
+31 (0)6 599 629 55
Michele Fiorentini
Sales Manager - Southern Europe
mfiorentini@it.kerstengroup.com
+39 3 471 212 792
Michał Kucharski
Sales Manager - Czech Republic & Slovakia
mkucharski@pl.kerstengroup.com
+48 692 145 832
