Diameter Selection Rule
The general guideline: leader pin diameter ≈ plate thickness / 4. This provides sufficient stiffness and engagement length for reliable alignment. For plates thicker than 200 mm, pin diameter tops out at Ø50-60 mm (practical machining limit).
| Plate Thickness | Recommended Ø |
|---|---|
| 40-80 mm | Ø16-20 mm |
| 80-120 mm | Ø25-32 mm |
| 120-200 mm | Ø32-40 mm |
| > 200 mm | Ø40-60 mm |