Precision-Engineered for Uninterrupted Power
Battery contact springs (shrapnels) are mission-critical components within any battery compartment or connection system. As a specialized form of Precision Metal Stamping, their function transcends simple connectivity; they are engineered to ensure consistent electrical conductivity, maintain secure physical contact under vibration, and provide reliable spring-back over thousands of cycles. Our battery shrapnels are manufactured to meet the exacting demands of modern consumer electronics, power tools, medical devices, and backup power systems.
Core Advantages & Design Features
Optimized Electrical Performance
Crafted from premium, high-conductivity materials such as copper alloys (C5191. C5210) or selective spring steels with precise plating (gold, silver, nickel, or tin). Our design ensures low contact resistance and stable current flow, which is vital for battery efficiency and safety.
Precision-Controlled Spring Force & Durability
Through advanced stamping and precise heat treatment, we achieve a consistent and reliable spring force. This guarantees stable contact pressure throughout the product's lifecycle, preventing power interruption due to shock or vibration, and ensuring excellent elastic recovery for long-term use.
Micro-Precision for Perfect Fit
Utilizing precision progressive dies, we manufacture shrapnels with tight tolerances, often within ±0.02mm. This guarantees perfect alignment and fit within the battery housing, facilitating smooth assembly and eliminating issues with battery insertion or removal.
Material & Finish Expertise
We select materials based on application-specific requirements for conductivity, corrosion resistance, and durability. A variety of plating options are available to enhance surface conductivity, prevent oxidation, and ensure solderability.
Our Manufacturing Edge
- Advanced Stamping & Coining: We employ high-speed precision stamping presses and coining processes to achieve the complex geometries and critical bending radii required for optimal mechanical and electrical performance.
- Rigorous Quality Control: Each batch undergoes stringent testing for dimensions, spring force, contact resistance, and plating thickness to ensure 100% performance compliance.
- Custom-Engineered Solutions: We provide full DFM (Design for Manufacturing) support to customize the shrapnel's shape, force, and material for your specific battery type, space constraints, and performance requirements.
Technical Specifications (Typical)
|
Material |
Beryllium Copper, Phosphor Bronze, Spring Steel (SK/SKH series) |
|
Plating |
Gold Flash, Selective Silver, Nickel, Matte Tin |
|
Thickness |
0.1mm – 0.5mm (customizable) |
|
Tolerance |
±0.02mm (on critical features) |
|
Standards |
Compliant with ROHS, REACH, and customer-specific specifications |
Ensure the reliability of your power connection. Contact us to co-develop the perfect battery contact solution for your application.
Hot Tags: battery hardware shrapnel, China battery hardware shrapnel manufacturers, suppliers, factory, Automotive Metal Stamping, Battery Hardware Shrapnel, metal for stamping, metal parts stamping, metal stamping, metal stamps
