Ball Joint vs. Welded Node: What Really Matters in Space Structure Design?

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 Connection type is one of the most underestimated but crucial decisions in space structure design. Here's how ball joints compare to welded nodes, and how each affects the outcome of your project.

1. Ball Joint Systems = High Precision + Modular

  • Prefabricated steel balls with drilled holes

  • Tubes connected using high-strength bolts

  • ✅ Fast assembly, excellent accuracy

  • ✅ Widely used in international projects

  • ✅ Ideal for export and repeatable designs

2. Welded Node Systems = Cheaper But Riskier

  • Members are directly welded at intersections

  • 🔧 Lower material cost, but slower installation

  • ❌ Prone to on-site welding defects

  • ❌ Harder to maintain and inspect

3. Maintenance and Safety

  • Ball joints can be replaced or tightened

  • Welded joints are permanent and hard to access

4. Architectural Freedom

Ball joint systems support double-curved, spherical, and parametric forms better—crucial for creative roofs or glass domes.

🔩 Choosing the right space structure system?
🔍 Let our team compare systems for your project — save time, budget, and avoid structural headaches.

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