Views: 0 Author: Site Editor Publish Time: 2026-06-10 Origin: Site
Welded steel grating is a highly practical and reliable solution widely adopted as drainage covers and gutter grates across industrial, commercial, municipal and civil engineering projects. Engineered with precision welding technology, this type of metal grating combines superior structural performance, excellent drainage capability and long-term durability, making it the ideal choice for all drainage system applications.
Municipal road engineering, urban drainage projects, factory workshops, industrial parks, parking lots, commercial plazas, landscape greening, logistics warehouses, airport roads, residential community infrastructure, and sewage treatment plants.
Bearing bar thickness: 3mm / 4mm / 5mm / 6mm Bearing bar height: 20mm / 25mm / 30mm / 32mm / 40mm / 50mm Bearing bar pitch: 30mm / 40mm / 60mm Cross bar pitch: 50mm / 100mm Standard panel size: 1000*6000mm, 1200*6000mm (custom length & width available)
High Drainage Efficiency: Uniform and neat grid openings ensure rapid water penetration, effectively eliminating surface water accumulation and adapting to heavy rainfall drainage demands.
Superior Load-Bearing Capacity: Integral welded structure without loose parts, resistant to bending and deformation; heavy-duty grades support pedestrian and light/medium vehicle rolling.
Excellent Corrosion Resistance: Hot-dip galvanized surface treatment provides strong protection against rainwater, sewage, oxidation and outdoor weather erosion.
Anti-Clogging Design: Scientific grid gap blocks large debris, leaves and stones from entering drainage pipelines, greatly reducing blockage risks and maintenance frequency.
Durable & Long Service Life: High rigidity and structural stability, no fracture or damage under long-term use, service life up to 15–30 years.
Easy Installation & Maintenance: Lightweight integral panel, simple laying and fixing; smooth surface is easy to clean and flush.
Cost-Effective: Low replacement rate and minimal later maintenance cost, saving overall project investment.
Material Options
Q235 Low Carbon Steel: Most cost-effective option, high structural strength, good weldability. After hot-dip galvanizing, it is widely used for general outdoor and industrial drainage projects, suitable for most conventional gutter and drainage cover scenarios.
304 Stainless Steel: Excellent rust and corrosion resistance, oxidation-proof, easy to clean. Ideal for wet, humid and slightly corrosive environments such as food factories, parks and residential areas.
316 Stainless Steel: Ultra-high corrosion resistance, salt-spray resistant and chemical resistant. Specially used for coastal areas, sewage treatment plants, chemical factories and other harsh corrosive working conditions.
FAQ
Q1: What is the best surface treatment for outdoor drainage grating?
A1: Hot-dip galvanizing is the most recommended option. It provides superior long-term anti-corrosion performance for outdoor rainwater and sewage exposure, with low maintenance cost and longer service life compared to cold galvanizing and paint coating.
Q2: Can the welded steel grating withstand car rolling?
A2: Yes. Our medium and heavy-duty welded grating can bear light and medium vehicle load. For frequent truck rolling scenarios, extra-heavy-duty customized grating is suggested to avoid deformation.
Q3: Is customized size acceptable?
A3: Absolutely. We support full-size and full-style customization according to customer site requirements and construction drawings, including special shapes and non-standard openings.
Q4: How to clean and maintain the drainage steel grating?
A4: The smooth grid surface is not easy to accumulate dirt. Daily flushing with water and regular debris removal are sufficient. No special maintenance is required after galvanized treatment.
Q5: What is your production and delivery cycle?
A5: Standard size products have sufficient stock with fast delivery. Customized products take 3–7 working days according to order quantity and processing difficulty.
Q6: What material should I choose for coastal projects?
A6: Coastal areas have high salt spray corrosion. 316 stainless steel grating or thickened hot-dip galvanized carbon steel grating is highly recommended for better anti-corrosion performance.
