Cast Iron D28 3D Welding Table with Standard 28mm Hole Grid System

The Cast Iron D28 3D Welding Table with Standard 28mm Hole Grid System is an industrial-grade cast iron 3D welding table built for heavy load welding tasks. Equipped with a global unified 28mm hole grid system, its top surface and four vertical sides are fully perforated for omnidirectional fixture mounting. Made of stress-relieved cast iron with optional nitriding surface treatment, the table resists welding heat, slag adhesion and deformation, perfectly matching all D28 standard positioning pins, clamps and supports to realize fast, flexible fixture combination for heavy industrial welding projects.

• Thermal Stability
  Cast Iron: High heat capacity, less prone to overall deformation under high local welding temperatures, resulting in long-term dimensional stability
  Steel Q355: Thin plates are prone to warping under heat, and continuous welding accuracy drifts rapidly
• Shock Absorption Performance
  Cast iron has dense grains, absorbing welding vibrations and resulting in smaller weld dimensional errors; steel transmits vibrations strongly, making small parts prone to displacement
• Wear Resistance and Slag Resistance
  Nitrided cast iron has higher surface hardness, making weld slag less likely to adhere; weld slag on steel platforms easily melts and adheres, and cleaning inevitably damages the surface
• Disadvantages
  Cast iron is extremely heavy, leading to higher transportation costs; it is brittle and easily chipped at the edges upon severe impact; steel is lightweight and flexible to transport

• Standardized and Universal: Globally compatible D28 hole system with interchangeable parts, eliminating the need for separate molds and tooling, increasing changeover efficiency by over 70%
• Stable and Deformation-Free Cast Iron: Double aging for stress relief, high temperature resistance, shock absorption, and long-term stable dimensional accuracy
• 3D Five-Sided Clamping: 3D positioning allows for multi-angle clamping of irregularly shaped heavy workpieces, eliminating blind spots
• Ultra-High Load Capacity: Suitable for heavy steel structures and large engineering machinery components, with load capacity far exceeding that of D16 small hole welding table
• Long Service Life: Nitrided cast iron tabletop is wear-resistant and burn-resistant, ensuring no accuracy drift even after ten years of continuous production
• Flexible Expansion: Multiple units can be combined and integrated with robotic production lines, adapting to flexible manufacturing of small to medium batches and diverse product varieties

A: The table is wrapped with anti-rust oil paper and anti-collision rubber corners, packed in IPPC fumigated wooden pallets/cases with fumigation certificate, compliant with EU, USA, Southeast Asia customs clearance rules. Plywood non-fumigation package is also optional.

A: Clean welding slag and iron scraps every day, blow debris out of holes with air gun. Wipe off water to avoid rust; coat thin anti-rust oil monthly, increase frequency in coastal humid factories. Do not grind the table surface with angle grinders.

A: Ideal for heavy steel structure, construction machinery frames, new energy vehicle chassis, truck frames, robotic welding stations, large equipment cabinet assembly and agricultural machinery component welding.

A: We can offer material test report, heat treatment certificate, three-coordinate precision inspection sheet, nitriding report and factory quality inspection record for your acceptance and customs filing.

A: Standard in-stock sizes can be delivered within 15 working days; customized non-standard tables take 15-25 working days based on order quantity.