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Micro Precision Helical Spring Compression Spring Helical Anchors Stable Contact

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Micro Precision Helical Spring Compression Spring Helical Anchors Stable Contact

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Place of Origin : Sihong, China

Brand Name : Sunzo

Certification : CE/IATF16949/45001/14001/9001

MOQ : Negotiable

Price : Negotiable

Packaging Details : Carton

Delivery Time : Negotiable

Payment Terms : Negotiable

Wire diameter : 0.08mm to 1.5mm

Coil OD : 2mm

Working stroke : 0.5mm-5mm

Load tolerance : ±1%

Salt spray resistance : 1000-hour

Electrical conductivity : 98%

Temperature range : -40°C to 125°C

CNC coiling resolution : ±0.0005mm

Surface defect detection : 5μm-level

Elastic decay : <1%

Nickel plating thickness : 10-25μm

Dynamic load range : 0.1-50N

Load test accuracy : ±0.5%

Temperature cycling range : -40°C to 85°C

Force variation : <2%

Contact resistance : <50mΩ

Fatigue life cycles : 10⁶ cycles

Rated load : 70%

Cycle reliability : 10⁶ cycles

Dynamic testing : 100%

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Compression Spring for Electronic Switches: Micro-Precision Engineering for Stable Contact and 10⁶ Cycle Reliability
In the electronics industry, where miniaturization and reliability are critical, electronic switches demand compression springs with sub-millimeter precision and consistent performance. Our Compression Spring (Helical Spring) is engineered to deliver stable contact force and extended service life, addressing the core requirements of modern electronic switching systems.
Technical Specifications
Parameter Specification
Wire Diameter Range 0.08mm to 1.5mm
Coil Outer Diameter As small as 2mm
Working Stroke 0.5mm - 5mm
Load Tolerance ±1% across 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 Applications & Results
Field applications demonstrate exceptional reliability across multiple industries:
  • Consumer electronics: Reduced switch failure rates from 0.3% to 0.002%
  • Medical devices: Achieved ISO 10993-5 biocompatibility compliance
  • Automotive: Met IATF 16949 requirements for in-vehicle switches
Custom Solutions Available: We offer tailored designs for tactile switches, detection switches, and membrane switches, with RoHS/REACH compliance and full traceability documentation. Backed by ISO 9001:2015 quality management, each spring undergoes 100% dynamic testing before shipment.

Product Tags:

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