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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"}}
Helical Compression Spring for Medical Surgical Instruments
Engineered specifically for medical surgical instruments, our helical compression springs deliver biomedical-grade precision and sterility assurance for life-critical applications. These springs provide consistent performance in instruments such as laparoscopic graspers, endoscopic tools, and surgical staplers, ensuring micron-level force control (±0.05N) and repeatable actuation essential for delicate tissue manipulation and precise mechanical feedback.
Medical-Grade Materials
316LVM Stainless Steel (ASTM F138)
Polished to Ra < 0.2μm surface finish to prevent bacterial adhesion, withstands 2000+ autoclave cycles (134°C, 30 minutes) without degradation
Titanium Alloy (Ti-6Al-4V ELI, ASTM F136)
40% weight reduction over steel with equivalent strength, excellent corrosion resistance in bodily fluids
Nitinol (NiTi-55)
Shape memory applications, maintains functional integrity across -40°C to 121°C sterilization ranges
Precision Design Specifications
Parameter
Specification Range
Wire Diameter
0.1mm to 2.0mm
Coil Outer Diameter
As small as 1.5mm
Working Stroke
0.3mm to 10mm
Force Linearity
Maintained within ±2% across deflection range
Advanced Manufacturing Process
Cleanroom production (ISO 8 Class 100,000) with automated processes to eliminate human contact
Laser welding with 0.01mm precision for end loops, ensuring no micro-cracks or burrs
Electropolishing to remove surface impurities and create passive oxide layer (Cr₂O₃)
Automated optical inspection (AOI) with 5μm resolution to detect sub-micron defects
Quality & Performance Validation
ISO 10993-5 biocompatibility testing (cytotoxicity, sensitization, irritation)
ISO 13485 quality management system certification
FDA 510(k) premarket notification support for instrument integration
Fatigue life testing exceeding 10⁶ cycles at 70% rated load (per ISO 13920 Class 0)
Proven Field Performance: Leading surgical device manufacturers report 92% reduction in instrument failure rates, 0.02mm positional accuracy in micro-dissection procedures, and 100% pass rate in 5000-cycle sterilization testing.
Custom Solutions Available
We offer specialized designs including variable-rate springs for tactile feedback, ultra-fine wire springs for micro-surgery, and anti-migration designs for implantable devices. All springs include full traceability documentation with batch material certificates, process records, and sterility validation reports.
