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Help CenterCustom Spring for Medical Device Manufacturing 304 Stainless Steel FDA Compliant
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As a trusted manufacturer with over 25 years of experience in wire and spring fabrication, Anping County Boli Hardware Wiremesh Products Factory is proud to offer our Custom Spring for Medical Device Manufacturing crafted from premium 304 Stainless Steel and designed to meet FDA compliance standards. Our springs are engineered to deliver precise performance, reliability, and safety required in critical medical applications such as surgical instruments, diagnostic equipment, drug delivery systems, and implantable devices. With a strong focus on quality control and customization, we provide tailored spring solutions that match your exact specifications, ensuring seamless integration into your medical devices.
Every spring we produce undergoes rigorous dimensional inspection and material verification to guarantee consistency and durability. The use of 304 stainless steel offers excellent corrosion resistance, biocompatibility, and mechanical strength, making it an ideal choice for environments where cleanliness and longevity are paramount. Our springs are available in various configurations including compression, extension, torsion, and wire forms, all adaptable to your unique design requirements.
Key Features & Technical Specifications
- Material Excellence: 304 Stainless Steel (AISI 304) – provides superior resistance to oxidation and chemicals, suitable for sterilization processes.
- FDA Compliance: Springs are manufactured under controlled processes to meet FDA requirements for medical devices, including material traceability and clean manufacturing.
- Customizable Dimensions: Wire diameter from 0.1mm to 10mm, outer diameter up to 200mm, free length up to 500mm, with tight tolerances as low as ±0.05mm.
- Versatile Spring Types: Compression, extension, torsion, constant force, and custom wire forms.
- Surface Treatment: Passivation, electropolishing, ultrasonic cleaning, or custom finishes to meet biocompatibility standards.
- Load & Deflection: Precise load capacity tailored to your force requirements, with linear or progressive characteristics.
- End Configurations: Closed and ground ends, open ends, hooks, loops, or custom shapes.
- Batch Consistency: Advanced CNC coiling and computer-controlled testing ensure uniformity across large production volumes.
| Parameter | Available Range | Tolerance |
|---|---|---|
| Wire Diameter (d) | 0.1 – 10 mm | ±0.01 mm (for d≤1mm) |
| Outer Diameter (OD) | 2 – 200 mm | ±0.1 mm |
| Free Length (L0) | 5 – 500 mm | ±0.5 mm |
| Solid Height (L1) | As per design | ±0.2 mm |
| Surface Roughness | Ra ≤ 0.4 μm (after passivation) | Per ASTM F86 |
| Load at Specified Deflection | Custom (0.1N – 500N) | ±3% of nominal |
Benefits for Your Medical Device Manufacturing:
- Enhanced patient safety through FDA-compliant materials and processes.
- Reduced assembly time with springs that meet exacting dimensional tolerances.
- Long service life even under repeated sterilization cycles (autoclave, ethylene oxide, gamma).
- Flexible design support – our engineers assist in optimizing spring geometry for your specific application.
- Cost-effective solutions for both prototype and high-volume production runs.
With an annual export value exceeding US$5 Million, Anping County Boli Hardware Wiremesh Products Factory has been a reliable partner for medical device manufacturers across North America, South America, Europe, Asia, and beyond since 1998. Our factory is located in Hengshui, Hebei, China, and we ship from major ports including Tianjin, Qingdao, and Shanghai. We understand the critical nature of medical components and implement strict quality control procedures at every stage – from raw material selection to final packaging. Our springs are produced in a clean environment and can be supplied with material certificates and inspection reports upon request.
Why Choose Us?
- 25+ years of specialized experience in spring manufacturing.
- FDA-compliant production capability with process documentation.
- Fast turnaround for samples (typically 7-15 days) and mass production (15-30 days).
- Competitive pricing with no compromise on quality.
- 100% inspection before shipment – dimensional, load, and surface checks.
Contact us today with your spring design or specifications. Our team will provide a customized solution that meets your medical device requirements. Let us be your partner in precision.
Frequently Asked Questions (FAQ)
Q1: Are your springs truly FDA compliant?
A: Yes, our springs are manufactured using 304 stainless steel and processes that align with FDA requirements for medical devices. We can provide documentation of material composition and process control upon request.
Q2: What is the minimum order quantity (MOQ) for custom springs?
A: For prototypes, the MOQ is typically 100 pieces. For production orders, we can discuss based on your volume needs. We are flexible and welcome both small and large orders.
Q3: Can you match existing spring dimensions from a sample?
A: Absolutely. We can reverse-engineer your spring sample and produce identical or optimized versions. Please send us a sample or detailed drawing.
Q4: What surface finishes are available for medical springs?
A: Common finishes include passivation (per ASTM A967), electropolishing, ultrasonic cleaning, and custom coatings. We recommend passivation for enhanced corrosion resistance and biocompatibility.
Q5: How do you ensure spring consistency across large batches?
A: We use CNC coiling machines with servo control and automated load testing. Statistical process control (SPC) is applied to monitor key parameters. Each batch is sampled and inspected to maintain tight tolerances.
Q6: What is the lead time for custom springs?
A: Sample lead time is typically 7-15 working days after design approval. Mass production takes 15-30 working days, depending on quantity and complexity. Rush orders are available upon request.
Q7: Do you provide material certificates?
A: Yes, we can supply mill test certificates for the 304 stainless steel raw material, as well as in-house inspection reports for dimensions and load.
Q8: Can these springs be used in implantable devices?
A: While our springs are made from FDA-compliant 304 stainless steel, final suitability for implantable devices depends on the specific application and regulatory requirements. We recommend consulting with your regulatory team. We can also explore higher-grade materials if needed.
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