D28 Porous 3D Welding Fabrication Tables with Support Legs

The D28 Porous 3D Welding Fabrication Table with Support Legs is an industrial-grade, modular, high-precision, and flexible 3D welding fixture platform. It features a core 28mm standard hole pattern and is designed for heavy-duty welding, large structural component assembly, and precision metal processing.

Countertop material

• Tabletop thickness: Approximately 25mm (cast iron/steel), with reinforcing ribs at the bottom to ensure rigidity.
• Surface treatment: Gas nitriding (mainstream), hardness HRC 35–45 / HV450–630, wear-resistant, resistant to welding slag, and easy to clean.
• Stress treatment: Artificial aging + natural aging to eliminate internal stress and prevent deformation during long-term use.

Industry Standards and Certifications

• Hole System Standard: The D28 hole system (φ28.15mm, 100*100mm grid) is a universal standard in the heavy-duty welding platform industry, recognized by the ISO International Organization for Standardization and EU CE certification, and widely used in the global construction machinery and steel structure industries;
• Material Certification: HT300 cast iron conforms to GB/T 9439-2020 "Gray Cast Iron Castings" and EU EN-GJL-300 standards, and Q345 steel plate conforms to GB/T 1591-2018 and ASTM A572 standards;
• Product Certification: D28 platforms produced by reputable manufacturers can pass CE certification (EU), FDA (North America), and ISO9001 quality system certification, eliminating certification barriers for export;
• Accuracy Testing: Each D28 Porous 3D Welding Fabrication Table with Support Legs undergoes inspection of hole position and flatness accuracy using a coordinate measuring machine before leaving the factory, and comes with a factory inspection report.  Third-party authoritative agency re-inspection is supported.

Packaging standards

• Inner packaging: D28 Porous 3D Welding Fabrication Tables with Support Legs have a scratch-resistant protective film applied to the tabletop surface, and plastic protective plugs are inserted into the positioning holes to prevent dust and hard objects from entering during transportation;
• Outer packaging:  Thickened solid wood pallets are used and secured with steel straps. Anti-vibration foam/rubber pads are placed between the tabletop and the pallet, and the support legs are individually packaged and secured to the sides of the pallet;
• Large sizes: Extra-wide/extra-long tabletops (such as 1500*3000mm) use custom-made solid wood frame packaging to increase overall rigidity and prevent bending and deformation during logistics.