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Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
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{"title":"Precision Engineered Custom Helical Compression Spring in 50CrVA Steel for","imgUrl":"https:\/\/img.chinax.com\/nimg\/75\/52\/43c53886bf1e1afab010170367fb-200x200-1\/precision_engineered_custom_helical_compression_spring_in_50crva_steel_for_industrial_applications.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Material":"Steel","Load Type":"Compression","Production Process":"Hot Roll"}}
{"title":"Corrosion Resistant Stainless Steel Helical Spring with Medical-Grade 316L and","imgUrl":"https:\/\/img.chinax.com\/nimg\/97\/d4\/31cbb88a6a1d117a5115d682eb37-200x200-1\/corrosion_resistant_stainless_steel_helical_spring_with_medical_grade_316l_and_precision_load_deflection_characteristics.jpg","attrs":{"Material":"316L stainless steel (UNS S31603), 17-4 PH stainless steel","Corrosion resistance":"Pitting Resistance Equivalent Number >40","Salt spray test":"1,000-hour per ASTM B117","Nickel plating thickness":"10\u03bcm"}}
{"title":"Helical Spring for Machinery with 40% Vibration Reduction, 2200 MPa Tensile","imgUrl":"https:\/\/img.chinax.com\/nimg\/9b\/93\/bcafaf36ce3ef850e3a36315d383-200x200-1\/helical_spring_for_machinery_with_40_25_vibration_reduction_2c_2200_mpa_tensile_strength_2c_and_2_5_million_cycle_durability.jpg","attrs":{"Spring rate":"0.5-500 N\/mm","Vibration reduction":"40%","Component wear reduction":"25%","Tensile strength":"2200 MPa"}}
{"title":"Automated Production Helical Spring with \u00b10.005mm Tolerances and Industry 4.0","imgUrl":"https:\/\/img.chinax.com\/nimg\/d1\/77\/4f2fcffff229ba7164b3e929a14a-200x200-1\/automated_production_helical_spring_with_c2_b10_005mm_tolerances_and_industry_4_0_integration_for_5_million_springs_2fmonth.jpg","attrs":{"Dimensional tolerance":"\u00b10.005mm","Load variation":"<2%","Production capacity":"5 million\/month","Cycle time":"0.8 seconds"}}
{"title":"Customized Compression Spring with \u00b11% Load Accuracy, 650\u00b0C High-Temperature","imgUrl":"https:\/\/img.chinax.com\/nimg\/a7\/d2\/6d102ec9dce090014d7e8f76a6b1-200x200-1\/customized_compression_spring_with_c2_b11_25_load_accuracy_2c_650_c2_b0c_high_temperature_stability_2c_and_c2_b10_005mm_precision_.jpg","attrs":{"Temperature range":"-40\u00b0C to 300\u00b0C","Load capacity":"Up to 5000N","Clearance requirement":"As low as 2mm","Load accuracy":"\u00b11% tolerance"}}
Compression Spring for Precision Connectors: Micro-Precision Engineering for Stable Contact and 10⁶ Cycle Reliability
In the electronics industry, precision connectors demand compression springs that deliver sub-millimeter dimensional accuracy, consistent contact force, and long-term reliability—critical for applications like 5G communication modules, medical device interfaces, and automotive infotainment systems.
Advanced Material Selection
316L Stainless Steel: 1000-hour salt spray resistance (ASTM B117) for humid electronics environments, with Ra <0.2μm electropolished surface to prevent contact resistance buildup.
Beryllium Copper (C17200): 98% electrical conductivity for signal-carrying contacts, ideal for high-frequency connectors (up to 40GHz) with <50mΩ contact resistance after 10⁶ cycles.
Nitinol (NiTi): Shape memory alloy maintaining stable force output across -40°C to 125°C, suitable for automotive underhood connectors.
Precision Manufacturing Process
• Diamond-tipped micro-coiling with real-time laser diameter monitoring (±0.0005mm resolution) for wire diameters 0.08-1.5mm
• Automated optical inspection (AOI) detecting surface defects as small as 5μm, ensuring compliance with IPC-A-610 Class 3 standards
• Vacuum annealing at 380°C to eliminate residual stress, achieving <1% elastic decay over 10⁶ compression cycles
Rigorous 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, simulating harsh operating conditions
5G Base Station Connectors: Beryllium copper springs maintaining signal integrity with <0.1dB insertion loss over 10⁶ mating cycles
Medical Device Interfaces: 316L springs with ISO 10993-5 biocompatibility, supporting 2000+ autoclave cycles without performance degradation
Automotive Infotainment: Nitinol springs withstanding -40°C to 125°C thermal cycling, reducing connector failure rates by 92%
Quality Assurance: Backed by ISO 9001:2015 quality management and RoHS/REACH compliance. We offer custom design services, including finite element analysis of contact force distribution and material selection optimization for specific connector geometries.
