Hot-Dip Galvanized Heavy-Duty Steel Walkway Grating Slip-Resistant Industrial Platforms
Our Hot-Dip Galvanized Heavy-Duty Steel Walkway Grating is a premium solution for industrial environments requiring robust, safe, and corrosion-resistant flooring. Engineered with high-strength carbon steel flat bars and cross bars, the grating features a serrated surface design for superior slip resistance, making it ideal for factories, warehouses, docks, and elevated platforms. The hot-dip galvanization process ensures 50+ years of anti-rust performance in harsh conditions, while the heavy-duty structure supports dynamic loads up to 4.5 kN/m².
| Parameter | Details |
| Material | Q235B carbon steel, hot-dip galvanized (Zn layer ≥85μm, ASTM A123 compliant) |
| Flat Bar Size | 30x3mm, 40x5mm, 50x5mm (standard: 40x5mm for heavy-duty loads) |
| Cross Bar Spacing | 50mm (longitudinal), 100mm (transverse) – customizable |
| Surface Treatment | Serrated teeth (3mm height) or embossed patterns for slip resistance |
| Load Capacity | Uniform load: 4.5 kN/m²; concentrated load: 1.5 kN at 100mm span |
| Corrosion Resistance | Passed 1,000-hour salt spray test (ASTM B117) |
| Panel Size | Standard: 1200x3000mm, 600x3000mm (custom sizes up to 1500x6000mm) |
- Precision Cutting: Flat bars and cross bars are laser-cut to exact dimensions for consistent spacing.
- Welding: Automated resistance welding fixes cross bars to flat bars at 50mm/100mm intervals, creating a rigid grid structure (weld strength ≥3kN per joint).
- Hot-Dip Galvanization:
- Degreasing → Pickling → Galvanizing bath (450°C zinc liquid) → Passivation
- Result: Dense zinc-iron alloy layer with ≥98% purity, ensuring uniform corrosion protection.
- Slip-Resistant Treatment:
- Serrated edges are cold-formed on flat bar surfaces (3mm height, 60° angle) for OSHA-compliant traction.
- Optional PVC coating for extra grip in oily/wet environments.
Key Advantages
- 50+ Year Lifespan: Galvanized coating resists rust, chemicals, and UV radiation in harsh industrial environments (e.g., steel plants, chemical facilities).
- High Impact Resistance: Withstands heavy machinery traffic and accidental drops of tools/equipment.
- Slip Resistance: Serrated surface achieves coefficient of friction ≥0.6 , reducing workplace accidents by 40% compared to smooth gratings.
- Open Grid Design: 83% open area allows liquid drainage, debris fall-through, and excellent ventilation.
- Modular Panels: Lightweight (18-32kg/m²) and pre-drilled for quick bolt-down or clip installation – no welding on site.
- Low Maintenance: Galvanized surface requires no painting; occasional pressure washing retains performance.
- 30% Lower Cost: Than equivalent concrete or aluminum flooring systems over a 20-year lifecycle.
- Industrial Platforms: Mezzanines, machine access walkways, and production line catwalks.
- Warehousing & Logistics: Loading docks, pallet racking walkways, and warehouse flooring.
- Marine & Offshore: Oil rig decks, shipboard walkways, and coastal facility platforms.
- Utilities & Infrastructure: Power plant access grates, wastewater treatment plant walkways, and stair treads.
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