High Precision Helical Stainless Compression Springs ISO 13920 Heavy Duty
High Precision Helical Stainless Compression Springs ISO 13920 Heavy Duty
Basic Properties
Place of Origin:
Sihong, China
Brand Name:
Sunzo
Certification:
CE/IATF16949/45001/14001/9001
Trading Properties
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Payment Terms:
Negotiable
Product Summary
High-precision helical compression springs with ±0.001mm tolerances, ISO 9001 certified. Engineered for micron-level accuracy in instrumentation with 316L stainless steel, titanium, or phosphor bronze options. Custom FEA analysis available.
Product Custom Attributes
Highlight
High Precision stainless compression springs
,Helical stainless compression springs
,ISO 13920 compression springs heavy duty
Dimensional Tolerance:
±0.001mm (wire Diameter), ±0.005mm (free Length)
Load Accuracy:
±0.5% Across 10⁶ Compression Cycles
Temperature Range:
-40°C To 120°C (316L Stainless Steel)
Tensile Strength:
800MPa (Titanium Alloy Grade 5)
Yield Strength:
0.2% (Titanium Alloy Grade 5)
Magnetic Permeability:
<0.005 H/m (Phosphor Bronze)
Surface Roughness:
Ra < 0.05μm
Elastic Decay:
<1% Over 10⁷ Cycles
Thermal Stability:
Temperature Coefficient Of Elasticity < 2ppm/°C
Load Linearity:
<0.3% Deviation From Hooke's Law
Residual Stress:
600MPa Compressive (shot Peening)
Force Variation:
±1% (constant-force Springs)
Surface Resistance:
10⁹-10¹¹Ω (anti-static Springs)
Wire Diameter Range:
0.08mm To 5mm
Free Length:
As Small As 3mm
Measurement Repeatability:
±0.3μm
Salt Spray Resistance:
1000-hour (ASTM B117)
Fatigue Life:
300% Extension (compared To Conventional)
Dynamic Load Range:
0.1-50N
Laser Resolution:
±0.0005mm
Product Description
Detailed Specifications & Features
High-Precision Helical Compression Spring: Engineered for Micron-Level Accuracy in Precision Instrumentation
In precision-critical fields such as metrology, semiconductor manufacturing, and medical diagnostics, instrumentation relies on compression springs that deliver sub-micron stability and repeatable performance. Our High-Precision Helical Compression Springs are engineered specifically for precision instrumentation, where even 0.001mm deviation can compromise measurement integrity.
Leveraging advanced CAD (SolidWorks 2024) and FEA (ANSYS Mechanical) simulations, we achieve dimensional tolerances of ±0.001mm for wire diameter and ±0.005mm for free length, ensuring load accuracy within ±0.5% across 10⁶ compression cycles—exceeding ISO 13920 Class 1 precision standards.
Material Specifications
316L Stainless Steel
1000-hour salt spray resistance (ASTM B117) and maintains elasticity from -40°C to 120°C
Titanium Alloy (Grade 5)
800MPa tensile strength with 0.2% yield strength, ideal for MRI-compatible medical devices
Phosphor Bronze Alloys
Low magnetic permeability (<0.005 H/m) for sensitive electronic instrumentation
Manufacturing Excellence
Manufacturing precision is ensured through 5-axis CNC coiling machines equipped with laser diameter monitoring (±0.0005mm resolution) and in-process stress relief annealing. Each spring undergoes sub-micron surface finishing (Ra < 0.05μm) to eliminate stress risers, while vacuum heat treatment at 480°C stabilizes the microstructure for <1% elastic decay over 10⁷ cycles.
Key Performance Enhancements
- Thermal Stability: Temperature coefficient of elasticity < 2ppm/°C, ensuring consistent performance in environmental chambers
- Load Linearity: <0.3% deviation from ideal Hooke's Law response between 10-90% of rated load
- Anti-fatigue Design: Shot peening with 0.05mm ceramic media induces 600MPa compressive residual stress, extending fatigue life by 300% compared to conventional springs
Specialized Applications
Optical Profilometers: Benefit from our constant-force springs (±1% force variation) for Z-axis positioning
Semiconductor Wafer Handlers: Use our anti-static springs (surface resistance 10⁹-10¹¹Ω) to prevent electrostatic discharge
Calibration Equipment: Integrate our zero-length springs for sub-micron displacement control
Quality Assurance
Every spring undergoes 100% inspection via coordinate measuring machines (CMM) and dynamic load testing (0.1-50N range). A leading metrology equipment manufacturer reported 50% longer calibration intervals after integrating our springs, with measurement repeatability improved to ±0.3μm.
Our R&D team offers custom FEA analysis to optimize spring geometry for unique load profiles, supporting wire diameters from 0.08mm to 5mm and free lengths as small as 3mm. Backed by ISO 9001:2015 quality management, these springs set the benchmark for precision instrumentation reliability.
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