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Help CenterCustom Special-Shaped Spring 304 Stainless Steel Wire Diameter 0.5-5mm ISO 2768 Tolerance
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As a leading manufacturer with over 25 years of expertise, Anping County Boli Hardware Wiremesh Products Factory is proud to offer our Custom Special-Shaped Spring 304 Stainless Steel Wire Diameter 0.5-5mm, manufactured under strict control of ISO 2768 tolerance. Our springs are designed to meet the most demanding applications where precision, durability, and corrosion resistance are essential. With an annual export value of US$5-10 million, we serve global markets including North America, Europe, and Asia, ensuring every spring meets international quality standards.
Our special-shaped springs are crafted from high-grade 304 stainless steel, offering excellent resistance to oxidation and chemical attack. The wire diameter ranges from 0.5mm to 5mm, allowing for flexibility in design while maintaining structural integrity. Each spring is produced using advanced CNC coiling machines and undergoes rigorous inspection to guarantee compliance with ISO 2768 general tolerances, ensuring repeatable performance in your assembly.
Key Features & Technical Specifications
- Material: AISI 304 Stainless Steel – exceptional corrosion resistance, suitable for harsh environments.
- Wire Diameter Range: 0.5 mm – 5 mm, customizable to your exact requirements.
- Shape Options: Any special shape – compression, extension, torsion, or custom profiles (e.g., square, rectangular, conical, irregular).
- Tolerance: Manufactured to ISO 2768-m (medium) or fine (f) as requested, ensuring dimensional consistency.
- Surface Finish: Available in plain, passivated, or as per customer specification.
- End Types: Closed ground, open, hooked, or custom ends.
| Parameter | Specification |
|---|---|
| Wire Diameter (mm) | 0.5 – 5 |
| Outer Diameter (mm) | Custom (up to 100 mm) |
| Free Length (mm) | Custom |
| Total Coils | As per design |
| Tolerance Grade | ISO 2768-m / f (optional) |
| Surface Treatment | Plain, Passivated, Zinc Plated (optional) |
Advantages & Customer Benefits
- Precision Manufacturing: Our CNC machines produce springs with tight tolerances, reducing assembly time and improving product reliability.
- Customization Flexibility: We work with your drawings or samples to create springs that fit perfectly into your application, eliminating the need for design modifications.
- Corrosion Resistance: 304 stainless steel provides long-lasting performance in humid, chemical, or outdoor environments.
- Cost-Effective: Direct factory pricing with no middlemen, offering competitive rates for bulk orders.
- Consistent Quality: Every batch is tested for spring rate, load capacity, and dimensional accuracy before shipment.
Our springs are widely used in automotive components, medical devices, electronics, industrial machinery, and aerospace where custom shapes and high reliability are critical. By choosing Boli, you benefit from our extensive experience in wire forming since 1998, serving clients across 15+ global markets.
Trust & Assurance
With an annual export value exceeding US$5 million, Anping County Boli Hardware Wiremesh Products Factory has built a reputation for delivering quality springs on time. Our factory is located in Hengshui, Hebei, China, with convenient shipping from Tianjin, Qingdao, and Shanghai ports. We are committed to ISO 9001 quality management (applicable) and adhere to strict inspection procedures. Whether you need a prototype or mass production, our team provides responsive support and fast turnaround. Contact us today to discuss your custom spring requirements!
Frequently Asked Questions (FAQ)
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Q: What is the minimum order quantity for custom springs?
A: MOQ depends on the complexity and wire diameter. For standard designs, MOQ is 1000 pieces. For small samples, we can offer a lower quantity at a higher unit price. -
Q: Can you produce springs with a wire diameter less than 0.5mm or greater than 5mm?
A: While our standard range is 0.5-5mm, we can accommodate special requests. Please contact us with your specific requirements. -
Q: How do you ensure the springs meet ISO 2768 tolerance?
A: We use calibrated measuring instruments and conduct random sampling during production. A final inspection report is provided upon request. -
Q: Do you provide free samples for testing?
A: Yes, we can provide samples after design approval. The customer pays for shipping, and the sample cost may be refunded for large orders. -
Q: What is the typical lead time?
A: Lead time is 15-25 working days after confirmation of drawings and sample approval. Rush orders are possible with prior arrangement. -
Q: Can you add surface treatments like passivation or plating?
A: Yes, we offer various surface finishes including passivation, bright annealing, and zinc plating. Please specify in your inquiry. -
Q: Do you ship to international destinations?
A: Absolutely. We export to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We can arrange shipping via sea, air, or express.
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