Micro Precision Helical Spring 1.5mm Electronic Switches Custom Compression Springs
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
Sunzo
Product Description
Compression Spring for Electronic Switches: Micro-Precision Engineering for Stable Contact and 10⁶ Cycle Reliability
Technical Specifications
| Parameter | Specification |
|---|---|
| Wire Diameter | 0.08mm to 1.5mm |
| Coil Outer Diameter | As small as 2mm |
| Working Stroke | 0.5mm to 5mm |
| Load Tolerance | ±1% across entire deflection range |
Material Options
- 316L Stainless Steel: Passivated per ASTM A967, provides 1000-hour salt spray resistance (ASTM B117) for humid conditions
- Beryllium Copper (C17200): Offers 98% electrical conductivity for signal-transmitting contacts
- Nitinol (NiTi) Shape Memory Alloy: Ensures stable performance across -40°C to 125°C for automotive electronics
Manufacturing Process
- Diamond-tipped CNC coiling with real-time laser diameter monitoring (±0.0005mm resolution)
- Automated optical inspection (AOI) for 5μm-level surface defect detection
- Vacuum annealing at 380°C to eliminate residual stress, ensuring <1% elastic decay over 10⁶ cycles
- Electroless nickel plating (10-25μm thickness) for corrosion protection and solderability
Performance Validation
- Dynamic load testing (0.1-50N force range) with ±0.5% accuracy per ISO 17256
- Temperature cycling (-40°C to 85°C, 1000 cycles) with <2% force variation
- Contact resistance measurement (<50mΩ after 10⁶ operations)
- Fatigue life testing (10⁶ cycles at 70% rated load per IEC 60669-1)
Field Performance Results: A leading consumer electronics brand reduced switch failure rates from 0.3% to 0.002% after implementing our springs. Medical device manufacturers achieved ISO 10993-5 biocompatibility compliance, and automotive Tier 1 suppliers met IATF 16949 requirements for in-vehicle switches.
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Company
Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
Location
No.20, Xinghuo Road, Nanjing High-tech Development Zone
Contact Person
wendy