D28 Porous 3D Welding Fabrication Tables with Support Legs

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.