The main reason for the use of aluminum profiles is their light weight combined with high stability.
In the production of extruded aluminum profiles, aluminum is heated and then pressed through a die under great pressure. The die determines the exterior of the profile. Different shaped mandrels create cavities and multi-chamber profiles during extrusion. After extrusion, the profile strands are cooled, stretched, hardened and sawn to length.
Extruded aluminum profiles are manufactured as so-called continuous material. The aluminum profile strands, which can be up to approx. 60 m long, are cut to exact dimensions and joined together using appropriate joining technology. For the production of windows, doors and facades, thermally insulated aluminum profiles are generally used for the exterior and non-insulated aluminum profiles for the interior.