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Help CenterHot Dip Galvanized Pressure Lock Steel Bar Grating, 30x100mm Spacing, 6mm Bar Thickness
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Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer of steel gratings since 1998, exporting over US$5 million annually to markets across North America, Europe, Asia, Africa, and Oceania. Our Hot Dip Galvanized Pressure Lock Steel Bar Grating with 30x100mm spacing and 6mm bar thickness is engineered to deliver superior strength, corrosion resistance, and long service life in demanding industrial environments. This pressure-locked grating combines the durability of hot-dip galvanized steel with a precision locking mechanism that eliminates welding, ensuring consistent performance and easy installation.
The 30x100mm spacing is optimized for heavy-duty applications where maximum load-bearing capacity and slip resistance are required. The 6mm bar thickness provides excellent structural integrity while keeping weight manageable for handling and transport. Each grating panel is manufactured using high-quality steel and undergoes a complete hot-dip galvanization process, coating all surfaces – including the locking joints – with a uniform zinc layer that protects against rust, corrosion, and harsh weather conditions.
Below are the key technical specifications of our standard product:
| Specification | Value |
|---|---|
| Bar Spacing (center to center) | 30 mm |
| Cross Bar Spacing (center to center) | 100 mm |
| Bar Thickness | 6 mm |
| Material | Carbon Steel (Q235 / Q345 optional) |
| Surface Treatment | Hot Dip Galvanized (ASTM A123 / Equivalent) |
| Locking Method | Pressure Lock (mechanical, no welding) |
| Standard Panel Width | Up to 1.2 m (customizable) |
| Standard Panel Length | Up to 6 m (customizable) |
Product Features and Benefits:
- Pressure Lock Construction: The cross bars are pressed into the bearing bars under high pressure, creating a permanent, rigid joint without any welding. This eliminates heat-affected zones and weak points, resulting in a uniform strength across the entire panel.
- Hot-Dip Galvanized Protection: After fabrication, the entire grating is immersed in molten zinc. The zinc coating (typically 50-85 microns) bonds metallurgically with the steel, providing exceptional corrosion resistance even in outdoor, wet, or chemical-exposed environments.
- 30x100mm Spacing Design: The 30mm bar spacing offers excellent load distribution and slip resistance for pedestrian and light vehicle traffic, while the 100mm cross bar spacing reduces weight and material cost without compromising structural performance.
- 6mm Bar Thickness: This thickness strikes an ideal balance between strength and weight. It can support heavy loads (e.g., forklifts, machinery) while remaining easy to cut, handle, and install.
- Low Maintenance: The galvanized coating does not require painting or periodic coatings. Even if scratched, the zinc layer provides sacrificial protection to the steel underneath.
- Versatile Applications: Ideal for industrial platforms, catwalks, drainage covers, stair treads, trench covers, mezzanine floors, and offshore installations.
- Easy Installation: Panels can be cut to size on-site using standard cutting tools. They can be welded, bolted, or clamped onto supporting structures. No special equipment is required.
- Customizable Dimensions: We can produce panels of various lengths, widths, and shapes to meet specific project requirements. Custom cutouts for pipes, columns, or obstacles are also available.
Why Choose Our Pressure Lock Grating Over Welded Grating?
- No welding cracks or spatter – cleaner appearance and safer edges.
- Consistent joint strength – each joint is identical, ensuring uniform load transfer.
- Faster production lead times – pressure locking is automated and faster than welding.
- Better corrosion protection – no welded areas where zinc coating may be damaged.
Quality Assurance and Company Credentials:
As a manufacturer established in 1998, Anping County Boli Hardware Wiremesh Products Factory has accumulated over two decades of expertise in steel grating production. Our factory is located in Hengshui, Hebei, China, the heart of China's wire mesh industry, giving us access to high-quality raw materials and skilled labor. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, with annual export value reaching US$5-10 million. Our products are trusted by clients in North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. We implement strict quality control at every stage – from raw material inspection to final galvanizing thickness testing – ensuring every grating panel meets your specifications. Our team can provide samples, drawings, and load-bearing calculations upon request.
We are confident that our Hot Dip Galvanized Pressure Lock Steel Bar Grating will deliver long-lasting performance for your project. Whether you need a standard size or a custom solution, we are ready to support you. Contact us today for a quotation or technical consultation – we look forward to building a lasting partnership with you.
Frequently Asked Questions (FAQ)
Q1: What steel grades do you use for the grating?
A: We typically use Q235 carbon steel for standard applications. For higher strength requirements, Q345 (equivalent to ASTM A36) is available as an option. Please specify your load requirements, and we will recommend the appropriate material.
Q2: Can you provide load capacity data for this 30x100mm 6mm thickness grating?
A: Yes, we can supply load tables based on span length and bar spacing. Generally, with a 6mm bar thickness and 30mm spacing, the grating can support uniform loads of several hundred kg/m² depending on the span. Contact our engineering team for a detailed calculation for your specific application.
Q3: Is the hot-dip galvanized coating uniform on all parts, including the locking joints?
A: Absolutely. The entire assembled grating is immersed in the galvanizing bath, so all surfaces – including the interlocking joints, edges, and cut ends – receive a uniform zinc coating. This ensures complete corrosion protection even in the joint areas.
Q4: What is the maximum panel size you can produce?
A: Our standard maximum width is 1.2 meters, and maximum length is 6 meters. However, we can produce larger panels up to 1.5m x 8m subject to transportation restrictions. Custom sizes are welcome – please provide your required dimensions.
Q5: How are the grating panels packaged for export?
A: Panels are stacked with separators (wood or plastic) between each layer to prevent friction damage. They are then bundled with steel strapping and wrapped in waterproof paper or plastic sheeting. For sea freight, we also use steel crates or pallets to ensure safe handling.
Q6: What is the difference between pressure lock and welded grating?
A: Pressure lock grating uses mechanical pressure to join cross bars and bearing bars, creating a strong, permanent joint without welding. This eliminates heat distortion, welding spatter, and potential weak points. It also provides a smoother surface and better corrosion resistance because no weld areas are exposed. Welded grating, on the other hand, uses electric resistance welding, which can be faster but may leave small weld marks.
Q7: Can you provide cutouts or notches in the panels?
A: Yes, we can cut holes, notches, or special shapes according to your drawings. Whether it's for pipe penetrations, columns, or custom angles, our CNC cutting machinery ensures precise dimensions. Additional charges may apply for complex cutouts.
Q8: What is the typical lead time for an order?
A: For standard sizes without special requirements, lead time is approximately 15-20 working days after order confirmation. Custom or large orders may require 25-35 working days. We always strive to meet your schedule – please discuss your timeline with our sales team.
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