Steel Grating Drainage Covers | Galvanized Trench Grating for Industrial Applications

Industrial steel grating drainage covers provide superior drainage solutions for various applications. Manufactured through automated pressure resistance welding technology, these gratings feature precisely spaced bearing bars and cross bars that create durable, open-grid structures. Available in carbon steel and stainless steel materials with hot-dipped galvanized or other surface treatments, our drainage grating systems ensure long-lasting performance in demanding environments while maintaining excellent load-bearing capacity and drainage efficiency.

Technical Specifications

Materials & Standards

• Primary Materials: Q235, A36, SS304, SS316L, S235JR

• International Standards:

  • China: YB/T 4001.1-2007

  • USA: ANSI/NAAMM (MBG531-88)

  • UK: BS4592-1987

  • Australia: AS1657-1985

  • Japan: JJS

Dimensions & Configurations

• Bearing Bar Sizes: 25×3mm to 75×10mm

• Bearing Bar Pitch: 12.5mm to 60mm (20mm, 30mm, 40mm standard)

• Cross Bar Pitch: 38mm to 101.6mm (50mm, 100mm recommended)

• Thickness Options: 3mm to 10mm (3mm, 4mm, 5mm standard)

Manufacturing Excellence

Production Technology

• 200-ton hydraulic resistance welding equipment

• Automated pressure welding for consistent quality

• Precision cutting and finishing processes

• Custom fabrication capabilities

Quality Materials

• Bearing Bars: Flat steel, twisted steel, pattern plate

• Cross Bars: Round, twisted, or bar-shaped configurations

• Surface Treatments: Hot-dipped galvanized, painted, black finish

Key Features & Benefits

Performance Advantages

• Superior Drainage Capacity: Optimized open area design

• Excellent Load Bearing: Robust construction supports heavy weights

• Corrosion Resistance: Multiple coating options for harsh environments

• Slip-Resistant Surface: Serrated options available for safety

• Easy Installation: Prefabricated panels reduce labor costs

• Low Maintenance: Durable materials minimize upkeep requirements

• Long Service Life: 5+ years warranty with proper installation

Applications

• Industrial platform flooring and walkways

• Drainage trench covers and gutter systems

• Municipal infrastructure projects

• Chemical and water treatment plants

• Power generation facilities

• Marine and offshore structures

• Mining and heavy industrial sites

Global Market Reach

• Americas: 45% market distribution

• Europe: 26% market presence

• Middle East: 38% market coverage

• Other Regions: 27% global distribution

Quality Assurance

• Material certification and testing

• Galvanizing standards compliance (ASTM A123, GB/T13912, BS729)

• Dimensional accuracy verification

• Load capacity testing

• Pre-shipment inspection protocols

Service Commitment

• Custom Manufacturing: OEM specifications welcome

• Technical Support: Professional engineering consultation

• Quality Guarantee: 5+ years product warranty

• Global Logistics: Worldwide shipping coordination

• After-Sales Service: Continuous customer support

Contact us for drainage grating solutions - Our manufacturing expertise ensures reliable steel grating products for your industrial applications, with custom engineering support and quality-guaranteed performance.