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Help CenterCorrosion-Resistant Spring With 0.2mm Tolerance, 304 Stainless Steel, 5N/mm Spring Rate
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Welcome to Anping County Boli Hardware Wiremesh Products Factory, a trusted manufacturer with over 20 years of experience in precision metal components. Our Corrosion-Resistant Spring with 0.2mm Tolerance, 304 Stainless Steel, 5N/mm Spring Rate is designed to deliver consistent performance in demanding environments. Made from high-grade 304 stainless steel, this spring offers excellent corrosion resistance, making it suitable for use in moisture, chemical, and outdoor applications. With a tight tolerance of ±0.2mm and a precise spring rate of 5N/mm, our product ensures reliable force and dimensional stability for your critical assemblies.
Whether you need a standard size or a custom design, our factory can produce springs that meet your exact specifications. We serve a wide range of industries including automotive, industrial machinery, electronics, and more. Our commitment to quality and precision has made us a preferred supplier to markets across North America, South America, Europe, Asia, and Africa.
Key Features & Benefits
- High Corrosion Resistance: 304 stainless steel provides excellent resistance to rust, oxidation, and many chemicals, extending the spring's lifespan in harsh environments.
- Precision Tolerance: ±0.2mm tolerance ensures consistent fit and function, reducing assembly issues and improving product reliability.
- Accurate Spring Rate: 5N/mm spring rate delivers predictable force-deflection behavior, essential for applications requiring precise load control.
- Durable Construction: Cold-wound manufacturing process with strict quality control ensures long fatigue life and resistance to set.
- Customizable Options: Wire diameter, outer diameter, free length, and end configurations can be customized to your drawings. Available with optional surface treatments such as passivation or oiling.
- Versatile Applications: Ideal for use in valves, pumps, actuators, medical devices, automotive suspensions, and electronic connectors.
Technical Specifications
| Material | 304 Stainless Steel (AISI 304) |
| Spring Type | Compression Spring (Helical) |
| Spring Rate (k) | 5 N/mm ±3% |
| Tolerance | ±0.2 mm on free length, outer diameter, and inner diameter |
| Wire Diameter | 0.5 mm – 5.0 mm (customizable) |
| Surface Finish | Passivated (standard) / Oiled / Electro-polished (upon request) |
| Max Operating Temperature | Up to 250°C (short-term) / 200°C (continuous) |
| End Configurations | Closed flat ground, closed & ground, open ends (custom) |
Why Choose Our Springs?
- Manufacturing Excellence: Since 1998, we have been producing precision springs using advanced CNC coiling machines and automated heat treatment processes. Every spring is inspected for dimensional accuracy and spring rate.
- Quality Assurance: Our factory follows strict internal quality control procedures. We can provide material test certificates and dimensional inspection reports upon request.
- Global Export Experience: With annual export value of US$5–10 million, we have shipped springs to customers in North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our logistics team ensures safe and timely delivery via Tianjin, Qingdao, or Shanghai ports.
- Customization Flexibility: We accept drawings or samples for custom orders. Minimum order quantity (MOQ) is flexible for small batch production. Lead time typically 10–20 days depending on quantity and complexity.
For more than two decades, Anping County Boli Hardware Wiremesh Products Factory has been dedicated to providing high-quality metal components. Our corrosion-resistant springs are the result of continuous improvement and customer feedback. We understand that every application has unique requirements, and we are ready to assist you with technical support and competitive pricing.
Contact us today for a quote or to discuss your spring specifications. Our experienced team will help you find the right solution for your project. We look forward to building a long-term partnership with you.
Frequently Asked Questions
Q1: What is the standard lead time for this spring?
A: For standard sizes, lead time is typically 10–15 working days. Custom orders may require 15–20 working days depending on quantity and complexity. Contact us for urgent requests.
Q2: Can you provide samples before mass production?
A: Yes, we offer samples for evaluation. Sample cost is applicable, and we will refund the cost upon bulk order placement. Samples are produced with the same precision as mass production.
Q3: How do you ensure the spring rate accuracy of 5N/mm?
A: Every spring is tested on a spring tester to verify the force at specified deflections. We maintain a tolerance of ±3% on spring rate. Our quality control records can be provided upon request.
Q4: Is 304 stainless steel suitable for outdoor or marine applications?
A: Yes, 304 stainless steel offers good corrosion resistance in most outdoor and marine environments. For highly corrosive conditions (e.g., salt spray), we recommend 316 stainless steel or special surface treatments. Please consult our engineers for your specific environment.
Q5: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 500 pcs. For custom designs, MOQ may be higher depending on wire diameter and complexity. We are flexible for trial orders.
Q6: Do you offer custom end configurations?
A: Yes, we can produce closed ends, closed & ground, open ends, or other configurations as per your drawing. Please specify your requirements in the inquiry.
Q7: What packaging options do you provide?
A: Springs are packaged in cardboard boxes, plastic bags, or on spools, depending on size and quantity. Additional anti-rust packaging (VCI paper, oil) is available for export shipments.
Q8: Can you provide a material certificate or compliance documentation?
A: Yes, we can provide a material test certificate (MTC) for 304 stainless steel, as well as dimensional inspection reports and other requested documentation.
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