CE Certified D16 Cast Iron Welding Table and Fixture

The CE Certified D16 Cast Iron Welding Table and Fixture is a high-precision, heavy-duty, modular 3D flexible welding fixture system. It uses D16 (φ16mm) standard precision holes as the core positioning reference, features a high-grade cast iron (HT300) tabletop and a high-strength steel frame, and is CE (EN ISO 12100, etc.) safety certified. It is designed for multi-variety, small-to-medium batch, high-precision welding/assembly applications, allowing for quick fixture assembly to achieve precise workpiece positioning and deformation-resistant clamping.

Core processing technology

1. Material Melting: High-quality pig iron, scrap steel, and ferrosilicon are used as raw materials and melted according to precise proportions. Spectroscopic analysis is performed before casting to ensure the cast iron contains 2.8%-3.2% carbon and 1.8%-2.5% silicon, guaranteeing a balance of hardness and toughness.
2. Precision Casting: Resin sand molding is used, with mold accuracy ≤0.05mm, preventing casting defects such as sand holes, pores, and shrinkage. After casting, the table surface undergoes natural aging treatment (≥6 months) to eliminate internal casting stress and prevent subsequent deformation.
3. Rough Machining and Heat Treatment: The cast blanks are first rough-milled to remove excess material; then stress-relieving annealing is performed (550-600℃, holding for 4-6 hours) to further eliminate internal machining stress; heavy-duty models receive additional medium-frequency quenching treatment to increase the surface hardness to HB220-260.
4. Fine Machining and Surface Treatment:CNC gantry milling is used for precision grinding, ensuring flatness and surface roughness meet specifications; holes are machined using a CNC drilling and boring machine, ensuring H7 accuracy and hole distance tolerance of ±0.05mm; finally, plasma nitriding treatment is performed (520-560℃, holding for 8-10 hours) to form a 0.15-0.25mm nitrided layer with a hardness of HV450-630, improving wear resistance, rust prevention, and resistance to welding slag adhesion.
5. Accuracy Testing: Each table surface is tested for flatness using a laser interferometer and for hole position accuracy using a coordinate measuring machine. Test reports are provided with the goods, ensuring compliance with ISO 8764 and CE certification accuracy requirements.

Applicable scenarios and industries

• Core Processes: MIG/MAG gas shielded welding, TIG argon arc welding, manual arc welding, plasma arc welding, robotic welding, workpiece assembly/inspection/correction
• Applicable Materials: Low carbon steel, low alloy steel, stainless steel, aluminum alloy (with special backing)
• Core Industries: Steel structure manufacturing, construction machinery, automotive/modification, precision machinery, rail transit, shipbuilding, welding training, sheet metal processing
• Typical Workpieces: Frames, chassis, casings, brackets, flanges, irregularly shaped steel structural components, small to medium batch precision parts

Delivery and After-Sales Service

• Packaging: IPPC fumigated wooden crate + waterproof film + foam corner protectors, meeting international logistics quarantine requirements.
• Installation: Floor-standing adjustable feet / anchor bolt fixing / universal casters for mobility; installation drawings and operation manual provided.
• Warranty: 1-year warranty for the tabletop, 2-year warranty for the frame, and 6-month warranty for consumable parts of the fixture (such as pressure heads and bolts).
• After-sales service: Fixture combination solutions, tooling debugging, and technical training provided; global after-sales support available.