A stacking system including an inverting arm arranged above the stacking system for selectively overturning a first elongated metal member into a second elongated metal member or not overturning the first elongated metal member into the second elongated metal member.

An automated packaging line for C- or U-shaped profiles are related methods are disclosed. An example method includes transferring a first profile and a second profile to a first location, each of the first and second profiles having a u-shaped or c-shaped cross-section defining an external convex side and an internal concave side. The example method also includes rotating a first blade and a second blade about a horizontal central axis, where the first blade and the second blade are coupled to opposite ends of a pair of rotor arms including a first rotor arm and a second rotor arm. The first and second rotor arms rotate about axes that are parallel to and offset from each other. The example method also includes inserting the first profile into the first blade with the internal concave side of the first profile facing upwards as the first blade moves upward through its rotation. In addition, the example method includes rotating the second profile by engaging the first blade with the external convex side of the second profile to position the second profile with the internal concave side of the second profile facing downwards over of the internal concave side of the first profile to form a first duplex within the first blade.

An automated packaging line for C- or U-shaped profiles are related methods are disclosed. An example method includes transferring a first profile and a second profile to a first location, each of the first and second profiles having a u-shaped or c-shaped cross-section defining an external convex side and an internal concave side. The example method also includes rotating a first blade and a second blade about a horizontal central axis, where the first blade and the second blade are coupled to opposite ends of a pair of rotor arms including a first rotor arm and a second rotor arm. The first and second rotor arms rotate about axes that are parallel to and offset from each other. The example method also includes inserting the first profile into the first blade with the internal concave side of the first profile facing upwards as the first blade moves upward through its rotation. In addition, the example method includes rotating the second profile by engaging the first blade with the external convex side of the second profile to position the second profile with the internal concave side of the second profile facing downwards over of the internal concave side of the first profile to form a first duplex within the first blade.