What is tramex grating?
The Tramex grating It is a metal structure made up of interlocking bars, designed to support loads, allow drainage, and provide safety on industrial, architectural, and urban surfaces. Its name comes from its triangular design. metal mesh (Tramex = Expanded Metal Mesh).
Main advantages:
- High strength and durability.
- Low maintenance.
- They allow ventilation and drainage.
- Versatility in design and applications.
Types (according to manufacture)
Electrowelded gratings
Manufactured by electric welding between flat bars (load-bearing) and crossbars.
Counter-rotating square
Structure: Flat bars joined by crossbars in the form of square (square or rectangular profile).
Use: Industrial platforms with heavy loads (e.g. factories, docks).
Smooth rod
Structure: Round and smooth crossbars.
Use: Pedestrian areas, stairs, food areas (easy to clean).
Protection profile
Booster: Edges with containment profiles to prevent landslides.
Use: Heavy machinery, safety platforms.
Pressed Grates
Manufactured without welding, using mechanical pressure.
Of strapping
Material: Galvanized or stainless steel straps (bands).
Advantage: Natural non-slip surface (ideal for stairs or wet areas).
Serrated
Precision: Cut edges for fit into complex structures.
Use: Architectural design (facades, railings).
Other specialized types
Expanded: Stretched, lightweight and decorative sheet (e.g. street furniture).
Shuffle: Serrated surface for maximum grip (mining, oil).
Fiberglass (GRP): Chemical and electricity resistant (chemical plants).
Materials Used
| Material | Advantages | Typical Uses |
|---|---|---|
| Carbon Steel | Economical, durable | General industry, drainage |
| Stainless steel | Anticorrosive, hygienic | Food, chemicals, marine |
| Aluminum | Lightweight, non-rusting | Airports, coastal areas |
| Fiberglass | Non-conductive, antacids | Electrical substations |
Finishes and treatments
Hot-dip galvanized: Rust protection (exterior).
Epoxy paint: Chemical resistance and color customization.
Polished/Burnished: Use on stainless steel for aesthetics and cleaning.
Non-slip coating: Silica or textured sand (occupational safety).
Main applications
Industrial: Walkways, platforms, drains. Architectural: Ventilated facades, lattices, railings. Urban: Sewer grates, public furniture. Workplace Safety: Non-slip floors in chemical plants.
Key regulations and standards
EN ISO 14122: Machine safety (fall protection).
ASTM A36/AISI 304: Standards for carbon and stainless steel.
UNE-EN 1433: Regulations for drainage grids.
Useful link: Industrial Safety Documentation Center (CDSI)
Conclusion
Tramex gratings are a versatile and technical solution for multiple sectors. Their selection depends on the material, type of manufacture, load and environment. Always consult with a certified engineer or supplier to ensure regulatory compliance.
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