Copper Braided Strip Carrier Count (Strands / Spindles)
2026-06-15
The "carrier count" (also called strands or spindles) refers to the number of Copper Wire bundles participating in the braiding process. The main differences between 16, 24, 32, and 48 carriers lie inbraid density, finished width/thickness, achievable cross-sectional area range, and flexibility. Under the same cross-section, different carrier counts result in different structures.
What is Carrier Count?
Copper braided strip specifications are typically marked as:
Carriers × Wires per carrier × Layers / Single wire diameter
Example:
48×30×1/0.15 → 48 carriers, 30 wires per carrier, single layer braid, single wire Ø0.15mm, approx. 25mm²
Cross-section ≈ Carriers × Wires per carrier × π × (Single wire radius)²
Comparison: 16-Carrier to 48-Carrier
| Carrier Count | Braid Density | Typical Cross-Section Range | Characteristics |
|---|---|---|---|
| 16 | Sparse, fewer wires | 1–6mm² | Older equipment, less common; soft but poor density; mainly used for very fine specs or old standards |
| 24 | Medium — most widely used | 2–50mm² (single layer) | Best cost-performance; full range of specs available; suitable for most switchgear & grounding connections |
| 32 | Denser | 16–70mm² | Flatter and tighter than 24; larger single-layer cross-section possible; slightly less flexible |
| 48 | Dense, many wires | 25–120mm²+ | Smooth surface, uniform current distribution; ideal for medium-large sections (often multi-layer); higher machine cost, longer lead time |
Key Rules:
- More carriers → more copper bundles involved → under the same cross-section, fewer wires per carrier are needed → braid becomes denser, flatter, wider, and fits better.
- For the same cross-section, you can use fewer carriers + multiple layers (e.g., 24 carriers × 2 layers) or more carriers + single layer (e.g., 48 carriers × 1 layer). The latter gives a smoother surface.
- Small cross-sections (2–10mm²) generally use 16 or 24 carriers; large cross-sections (50mm²+) tend to use 32/36/48 carriers or even multi-layer braiding.
Selection Recommendations
| Application | Recommended Carrier Count |
|---|---|
| General electrical equipment soft connections / ground wires (2–35mm²) | 16–24 carriers — sufficient and widest availability |
| High-current busbar flexible connections (50mm²+) | 48 carriers (or multi-layer 48) — smooth surface and good current distribution |
| Tight space requiring narrow & thick braid | Choose higher carrier count + fewer wires per carrier |
| Extra flexibility required | Consider multi-layer + lower carrier count |
If you have specific requirements, feel free to provide detailed parameters and I can help recommend the right specification.