aluminum grating
Steel Grating
Swage Locked Bar Grating | Riveted-Strength Steel Panels
Swage-locked bar grating with bearing bars mechanically swaged into cross rods for a rigid, weld-free lattice. Bars 3/4" to 4" deep in galvanized steel, aluminum or stainless. For heavy platforms and chemical decking.
Description
Product Introduction
Swage-locked bar grating with bearing bars mechanically swaged into cross rods for a rigid, weld-free lattice. Bars 3/4" to 4" deep in galvanized steel, aluminum or stainless. For heavy platforms and chemical decking.
Overview
Swage-locked bar grating joins bearing bars and cross rods without welding. The cross rods are inserted through pre-punched holes in the bearing bars, then hydraulically swaged so the metal flows and locks both members into a permanently rigid panel. This cold-formed process avoids heat distortion, keeps galvanized coatings intact and produces a clean, uniform appearance. Available in carbon steel, aluminum and stainless steel, swage-locked grating suits mixed-metal projects where welding is impractical. Bearing bars range from 3/4" to 4" deep, allowing the same construction style to span short pedestrian walkways or long, load-bearing industrial platforms. The locked joint resists racking and twisting, giving designers a dependable, dimensionally stable deck across a wide span of structural demands and corrosive service conditions.
Construction & Materials
Bearing bars measure 3/4" to 4" in height and 1/8" to 1/4" in thickness, set on standard 19-W-4, 15-W-4 or 11-W-4 spacing centers. Cross rods pass through punched openings and are swaged under high pressure, forming a flush, four-sided mechanical lock at every intersection. Carbon-steel panels are hot-dip galvanized after fabrication for outdoor durability; aluminum versions cut weight for portable platforms; stainless steel handles aggressive chemical and marine environments. Because no weld bead is added, the swage joint maintains consistent panel thickness and a smooth underside. Standard panel widths of 24" and 36" run in lengths up to 288", and banding bars can be added at panel edges and openings to seal exposed bar ends for a finished, snag-free installation.
Performance & Standards
The swaged joint delivers excellent lateral rigidity and load distribution, with published load tables matching welded grating of equal bearing-bar depth. Open areas typically fall between 20% and 89% depending on spacing, balancing drainage and ventilation against load capacity. Serrated surfaces improve slip resistance on wet or oily decks, and tighter ADA-compliant close-mesh patterns are available for pedestrian areas requiring small openings. Galvanizing to industry coating standards protects carbon-steel panels in outdoor and washdown settings, while aluminum and stainless options meet electrical, food-grade and corrosion specifications. Each panel layout can be checked against concentrated and uniform load tables so engineers select the correct bearing-bar size, spacing and span for the intended pedestrian, equipment or vehicular loading without over-building the structure.
Applications
Swage-locked grating is widely specified for industrial platforms, elevated walkways, mezzanine flooring and equipment access decks. Its weld-free, distortion-free joints make it a strong choice for aluminum and stainless installations in oil and gas, petrochemical and water-treatment plants where corrosion and chemical exposure rule out coated carbon steel alone. The rigid lock holds tolerances over long spans, supporting maintenance walkways, pipe-rack platforms and tank-top access. Serrated panels are used on ramps, stair landings and wet processing floors for traction, while close-mesh swaged panels serve pedestrian zones and public access routes. For heavy plant traffic, deeper bearing bars carry forklift and cart loads, making one construction method adaptable across light foot traffic and demanding wheeled-equipment areas alike.
Why Choose Zhongman
Zhongman manufactures swage-locked bar grating to your exact bearing-bar depth, spacing and panel size, supplying carbon steel, aluminum and stainless from a single source. Our hydraulic swaging line produces tight, consistent locks across every intersection, and panels are checked for flatness, joint integrity and dimensional accuracy before shipment. We provide stamped load tables, galvanizing certificates and material test reports so your engineers can specify with confidence. Custom cutouts, banding, toe plates and matching stair treads can be fabricated to drawing, and panels are nested and crated to minimize freight on export orders. With decades of grating and wire-mesh experience, we deliver dependable lead times, competitive factory pricing and responsive technical support for projects of any size, from spare walkway sections to full plant decking packages worldwide.
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