Duraxim takes the proven I-beam into the future: same familiar starting point, dramatically smarter geometry for crane applications.
For over 150 years, the standard I-beam has been the backbone of construction and industrial cranes. Its simple, strong shape - two flanges connected by a vertical web - made it cheap to produce, easy to transport, and highly effective.
In crane applications, however, the I-beam has a hidden weakness.
Because the load moves across the entire span, the bending moment changes constantly. A traditional I-beam has the same cross-section everywhere - meaning large parts of the beam are over-engineered, wasting material.
Duraxim starts with a standard rolled I-beam and evolves it into something far superior - a lighter, stronger, variable-section girder designed specifically for the moving loads of modern cranes.
Duraxim creates a variable-height girder - taller in the middle where bending stresses are highest and tapering toward the ends. This gives the beam a distinctive triangular-like outer profile.
Inside, the web features a precise pattern of triangular openings, forming an efficient triangular structure that follows the real load path.
This geometry places material exactly where it's needed most, resulting in a beam that is significantly more efficient than traditional constant-section I-beams.
Because the beam is lighter, the runway beams, support structures, and foundations can all be lighter too. The result is a warehouse or industrial crane system that uses substantially less steel - while performing better.
That means lower costs, easier installation, reduced energy consumption, and a meaningfully smaller carbon footprint.
We developed a brand-new crab hoist specifically engineered for the Duraxim double-girder system. By lifting between the two beams instead of on top, it unlocks a higher lifting range than traditional designs.
Better beams. Better hoist. Better crane.
