Massive Structural Truss Fabrication
Long-span architectural roofs, airport terminals, stadiums, and heavy industrial facilities rely on massive custom steel trusses to support immense loads over wide open spaces. Fabricating these complex structures requires pinpoint cutting accuracy, flawless welding, and—most importantly—massive floor space.
With 180 acres of manufacturing space and 250-ton lifting capacities, Openex is one of the few global fabricators capable of not just building, but fully trial-assembling massive tubular and box trusses indoors. This guarantees that your structural components will fit perfectly when they arrive at the construction site, saving you thousands of hours in field-welding and modification.
Truss Manufacturing Specifications
We manufacture custom structural trusses to strict AWS D1.1 and international building codes. Below are our general facility capacities:
| Truss Types Fabricated | Tubular (CHS, RHS, SHS), Box Trusses, Lattice Girders, Bowstring, Pratt, and Warren Trusses. |
|---|---|
| Maximum Module Length | 50+ Meters (Depending on shipping logistics) |
| Maximum Module Weight | Up to 250 Tons per lifted assembly |
| Materials Processed | Carbon Steel (A36, Grade 50), High-Strength Low-Alloy (HSLA), Weathering Steel, and Stainless Steel. |
| Welding & Quality Codes | AWS D1.1 (Structural Welding Code - Steel), EN 1090 (EXC3/EXC4), 100% MT/UT/RT NDT Inspection. |
Our Work: Heavy Structural Frames
The Manufacturing Process
Tubular trusses require incredibly complex node joints. We utilize 5-axis CNC pipe profile cutting machines to laser-cut perfect copes, bevels, and saddle profiles into heavy steel pipes, ensuring zero-gap fit-ups for welding.
Our AWS-certified welders perform Submerged Arc Welding (SAW) and Flux-Cored Arc Welding (FCAW) to achieve full-penetration, defect-free welds at critical structural nodes. Every structural weld is subjected to strict NDT (Non-Destructive Testing).
Before a massive truss leaves our facility, it is fully pre-assembled on our vast factory floor. We utilize laser trackers and large-scale CMMs to verify that bolt holes and splice plates align perfectly over spans of 50 meters or more.
Infrastructure components face harsh weather elements. Completed assemblies are moved to our massive steel grit blasting booths, followed by multi-coat epoxy or zinc-rich painting systems to guarantee decades of corrosion resistance.