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Composite steel grating (also known as composite steel grid panel or modular steel grating) is an innovative load-bearing component manufactured by combining steel grating with checker plate, anti-corrosion panels, non-slip rubber mats or other materials via specialized fasteners or composite lamination technology, based on conventional steel grating.
Its core advantage lies in integrating high strength with multi-functionality. It retains the core properties of steel grating – ventilation, drainage, load-bearing capacity and durability – while adding extra functions such as anti-slip, anti-corrosion, noise reduction and aesthetic improvement through the composite surface layer. This overcomes the single-function limitation of traditional steel grating, making it widely used in scenarios requiring higher protection and user experience. It is an upgraded load-bearing paving material for industrial, municipal and civil applications.
The product supports flexible selection of composite materials, steel grating structures (welded / interlocking), and surface treatments to meet diverse working conditions, balancing practicality, safety and comfort.
Base Steel Grating: Made of Q235 carbon steel or 304/316 stainless steel, available in welded (flat bar + twisted square bar) or interlocking structure. As the primary load-bearing core, its flat bar height, thickness and mesh size can be customized to meet load requirements.
Composite Surface Layer: Various surface materials are selected based on application scenarios and firmly bonded to the base grating via special clips, bolts or adhesive processes to prevent detachment.
Auxiliary Structure: Angle steel frames, reinforcing ribs, mounting holes and lifting lugs can be added to improve structural stability and installation convenience.
Anti-Corrosion Treatment: The base grating is treated with hot-dip galvanizing, painting or other anti-corrosion processes; the composite surface layer is also protected accordingly to ensure long service life.
Steel Grating + Checker Plate: The most widely used type. The surface layer is non-slip checker plate (diamond or teardrop pattern), providing excellent slip resistance, blocking mesh openings, reducing noise and preventing debris from falling. Ideal for wet, oily and high-pedestrian areas.
Steel Grating + Anti-Corrosion Panel: Surface layer uses FRP or PVC panels with superior chemical and acid-alkali resistance, suitable for chemical plants, wastewater treatment facilities and coastal high-corrosion environments, with partial electrical insulation.
Steel Grating + Non-Slip Rubber Mat: Bonded with non-slip rubber surface for exceptional slip resistance, plus noise absorption and shock reduction. Recommended for equipment rooms, operating platforms and pedestrian walkways requiring low noise.
Steel Grating + Decorative Panel: Surface layer uses aluminum plate, color steel plate or other decorative materials, combining load-bearing performance with aesthetic appearance for landscape platforms, shopping malls and exhibition halls.
Double-Layer Composite Steel Grating: Two layers of steel grating with a buffer interlayer for enhanced load capacity and impact resistance, used in heavy equipment maintenance platforms and vehicle access areas.
Base Processing: Cut flat bars and twisted square bars according to load requirements; fabricate the steel grating base by welding or interlocking, then grind and derust.
Surface Layer Processing: Cut checker plate, anti-corrosion panel or other surface materials and perform pre-treatment for slip resistance and corrosion protection.
Composite Forming: Bond the surface material to the steel grating base firmly using special clips, bolts or professional adhesive to ensure no looseness or gaps.
Reinforcement: Weld peripheral frames and reinforcing ribs; re-strengthen connection points for higher structural stability.
Anti-Corrosion & Finishing: Apply overall hot-dip galvanizing or spray painting; seal and protect the composite surface layer to ensure uniform anti-corrosion performance.
Final Inspection: Verify dimensions, bonding strength, slip resistance and anti-corrosion effect. Products are delivered only after passing inspection.
All-in-One Multi-Functionality: Combines the load-bearing, ventilation and drainage benefits of steel grating with the slip resistance, corrosion protection, noise reduction and aesthetic advantages of surface materials, eliminating limitations of single-function traditional grating.
Excellent Slip Resistance & High Safety: Surface checker plate, rubber mat and other designs greatly increase friction coefficient, effectively preventing slips in wet and oily environments, suitable for crowded and frequently used areas.
Corrosion-Resistant & Long-Lasting: Dual protection from hot-dip galvanized base and specially treated surface layer ensures resistance to acid, alkali, moisture and salt spray, adaptable to highly corrosive environments.
Noise & Shock Reduction: Surface materials absorb footsteps and equipment vibration, reducing noise transmission and improving comfort for pedestrians and operators.
Stable Load-Bearing & Robust Structure: Base grating delivers strong load capacity; the composite structure is reinforced for even force distribution, resistant to deformation and separation, supporting pedestrians, light equipment and vehicle traffic.
Flexible Customization & Aesthetic Options: Composite materials, grating structure, dimensions and surface colors are fully customizable to balance practicality and appearance for various scenarios.
Easy Installation & Low Maintenance: Mounting holes and lifting lugs can be pre-installed, supporting welding and clip fixing for high efficiency. Routine cleaning and connection checks are sufficient for low maintenance cost.
Base Grating: Q235 carbon steel (mainstream, hot-dip galvanized); 304/316 stainless steel (for high-corrosion environments). Flat bars available in plain or serrated type.
Composite Surface: Checker plate (Q235 / stainless steel), FRP panel, PVC panel, non-slip rubber mat, aluminum plate, color steel plate.
Fasteners: Stainless steel special clips, anti-corrosion bolts, industrial adhesives (matched to composite type).
Frame Material: ∠40×4, ∠50×5 angle steel or thickened flat bar (optional, for enhanced stability).
Base Grating: Flat bar height 25–50mm, thickness 3–6mm; mesh sizes 30×100mm, 40×100mm, 50×50mm.
Surface Layer: Checker plate 2–5mm thick; FRP / PVC panel 3–8mm thick; non-slip rubber mat 3–5mm thick.
Overall Dimensions: Standard panels 1m×2m, 1.2m×2.4m; custom sizes available up to 3m×6m per panel.
Load Rating: Pedestrian use (≥2.5kN/m²), equipment maintenance (≥5kN/m²), vehicle access (≥10kN/m²).
Industrial: Operating platforms and maintenance walkways in chemical plants, power stations, wastewater treatment facilities (anti-corrosion + anti-slip); equipment room platforms (noise reduction + anti-slip); heavy equipment maintenance platforms (double-layer high-load).
Municipal: Pedestrian overpasses and underpass paving (anti-slip + aesthetic); municipal drainage covers (anti-slip + anti-debris); landscape platforms and boardwalks (aesthetic + durable).
Civil: Maintenance access and mezzanines in shopping malls, exhibition halls and office buildings (aesthetic + noise reduction); pedestrian paths and underground garage entrances in residential areas (anti-slip + durable).
Special: Coastal docks and ship decks (anti-corrosion + anti-slip); food and pharmaceutical plants (hygienic + anti-corrosion); outdoor open platforms (anti-corrosion + anti-aging).
Welding Fixation: Weld frame or lifting lugs to steel beams or supports for firm, theft-resistant installation, suitable for permanent and heavy-duty applications.
Clip / Bolt Fixation: Use specialized anti-corrosion clips or bolts for detachable installation without damaging surface or zinc coating, convenient for later maintenance and replacement.
Inset Fixation: Framed composite grating can be directly inserted into pre-set channels for quick installation, ideal for covers and walkways.
Regularly remove debris, oil and standing water to avoid mesh blockage (for partially open types) and prevent surface aging or detachment.
Inspect connections between surface layer and base periodically; tighten or replace fasteners if loose or detached.
Repair or replace damaged or corroded surface panels promptly. Touch up damaged zinc coating on the base with anti-rust paint.
Avoid impact from sharp objects on FRP/PVC layers to prevent breakage. Keep rubber layers away from strong acids and alkalis; regular dust cleaning is sufficient.
Conventional Steel Grating: Single steel structure, focused on load-bearing and ventilation, limited slip resistance, corrosion protection and appearance; for basic general applications.
Composite Steel Grating: Steel base + composite surface layer, multi-functional integration with superior slip resistance, corrosion protection, noise reduction and appearance; ideal for upgraded scenarios with higher comfort and protection demands, with higher cost-effectiveness (no extra protective devices required).
Customers may provide detailed dimension drawings, on-site photos, or specify installation environment, load requirements, preferred composite type (checker plate / anti-corrosion panel, etc.), material and surface treatment needs.
Our professional technical team will provide accurate calculation and customized composite steel grating to ensure perfect on-site fitting, along with full technical support and after-sales service.
