Every hole cut on a CNC drilling center for tight positional accuracy and full pattern repeatability — the standard for high tube-count designs and welded joints where hole position tolerance really matters.
| Structural Principle | Computer-controlled drilling holds positional tolerance across the full hole pattern |
| Typical Positional Accuracy | ±0.05 mm hole-to-hole |
| Applicable Patterns | Triangular and square pitch, any TEMA-compliant layout |
| Best Suited For | High tube-count designs, welded tube-to-sheet joints |
| Governing Codes | TEMA tolerance tables, ASME Section VIII |
Any structural type or material can be CNC machined; it's the tolerance requirement that drives the choice.
Typically ±0.05 mm hole-to-hole is achievable on modern CNC drilling centers, well within TEMA tolerance requirements even for the tightest joint designs.
For low-to-moderate hole counts, the difference is often minor. For very high tube-count designs, CNC machining time scales with hole count and can extend the schedule — confirm with engineering for large patterns.
Not strictly required, but strongly preferred, since welded joints are more sensitive to hole position and roundness than expanded joints. Most welded designs specify CNC machining as standard practice.
Every enquiry is checked against governing code, material compatibility and manufacturing feasibility before a quote is issued. Use our product, material, grade and standards guides to freeze the RFQ — then confirm with engineering.
Send your diameter, material, pressure class and quantity — we'll confirm thickness and price.