Why Do Leading Power Engineers Upgrade to SHZHJ Flexible Connectors?
In high-current and heavy-load environments, rigid busbars face catastrophic risks. Micro-vibrations from machinery or continuous thermal expansion and contraction cause joint cracking, loose bolts, and localized overheating—leading to costly arc flashes or sudden system downtime.
Our copper shunts act as the "flexible heart" of your electrical layout. By utilizing ultra-thin laminated foils or high-density wire braids, they effortlessly absorb 3D stress, isolate mechanical shock, and guarantee uninterrupted, highly efficient power transmission.
Core Product Lines
Laminated Copper Foil ShuntsThe Technology: Built from multi-layered electrolytic copper foils (0.035mm–0.3mm thick) welded via high-pressure Molecular Diffusion Welding. The contact ends are bonded into a solid copper block without secondary solder, while the center remains fully flexible. Ultimate Advantage: Zero-solder contact resistance, ultra-compact profile, and excellent uniform current distribution. Best For: EV battery packs, compact bus ducts, switchgears, and space-constrained cleanroom environments. |
Braided Copper Wire ShuntsThe Technology: Woven from thousands of fine, high-purity copper wire strands into high-density flat or round configurations. Ends are securely finished using seamless copper terminal tubes under heavy-duty crimping or heavy fusion welding. Ultimate Advantage: Superior multi-directional flexibility, maximum surface area for cooling, and exceptional mechanical fatigue resistance. Best For: High-vibration machinery, generators, transformers, and dynamic mechanical links. |
Interactive Selection Guide
Engineer's Tool: Not sure which structure fits your temperature-rise target? Compare the benchmarks below or let our engineering team calculate the optimal cross-section for your layout.
Technical Benchmark Comparison
| Critical Selection Factors | Braided Copper Shunts | Laminated Copper Shunts |
|---|---|---|
| Heat Dissipation Efficiency |
★★★★★ Massive wire surface area |
★★★★ Standard surface layout |
| Limited Mounting Space |
★★★ Requires physical bending radius |
★★★★★ Pre-formed to exact geometric shapes |
| 3D Multidirectional Flexibility |
★★★★★ Bends, twists, and moves freely |
★★★ Optimized for single-axis bending |
| Cleanliness & Particle Control |
★★★ Standard industrial grade |
★★★★★ Zero-particle, ideal for EV cleanrooms |
| Cost-Effectiveness |
★★★★★ Highly economical standard sizes |
★★★★ Premium custom-tooled technology |
Electrical Performance & Geometry Matrix
| Connector Type | Cross-Section Area | Current Rating (ΔT=50°C) | Dimensions Example (W×T) | Structural Insights |
|---|---|---|---|---|
| Braided Shunt | 100mm² | 500 A | 32 × 6mm | Woven mesh design maximizes airflow for rapid continuous cooling. |
| Laminated Shunt | 100mm² | 550 A | 50 × 2mm | Solid bonded ends provide the lowest voltage drop and higher peak-current capacity. |
Industrial Application Showcase
New Energy & EV BatteriesFlexible busbars for EV lithium-ion battery packs, commercial Energy Storage Systems, and high-power charging stations. |
Power Grid & TransformersHeavy-current connections inside electrical switchgears, busway systems, and distribution transformers. |
Heavy ElectrificationHigh-load supply links for induction furnaces, electrolytic smelting lines, and welding machinery. |
Switchgears & BreakersFlexible shunts for vacuum circuit breakers, isolation switches, and mine explosion-proof gear. |
Advanced Customization Capabilities
We translate your complex engineering drawings into rugged, highly reliable physical components.
Precision Surface Plating: Full or selective plating including Tin (Sn), Silver (Ag), or Nickel (Ni) to eliminate oxidation and minimize long-term contact resistance.
Advanced Insulation Add-ons: Custom-molded PVC sleeves, high-temperature heat-shrinkable insulation tubes, or specialized fiberglass coatings for high-voltage protection.
Custom Geometric Machining: Precision CNC drilling, specialized slotting, and complex multi-angle bending to match pre-existing mounting points exactly.
Sea/Air Freight Packaging: Multi-layer vacuum-sealed anti-oxidation packaging nested within heavy-duty reinforced export crates to ensure a pristine factory-level finish upon arrival.
Take the Risk Out of Your High-Current Connections
Get your custom connector design validated by SHZHJ's engineering experts completely free. Whether you have a completed CAD file or just basic dimensions, we will optimize your layout for optimal cost and performance.
