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Help CenterIrregular Shaped Spring for Automotive Suspension System 304 Stainless Steel Endurance Tested
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer since 1998, specializing in precision-engineered springs for global automotive applications. Our Irregular Shaped Spring for Automotive Suspension System is crafted from premium 304 Stainless Steel and rigorously endurance tested to ensure long-term reliability under extreme conditions. With an annual export value of US$5-10 million and a presence in major markets across North America, South America, Europe, Asia, and beyond, we deliver solutions that meet the highest industry standards.
This unique spring is designed specifically for modern automotive suspension systems where standard coil springs cannot fit due to space constraints or complex geometry. Its irregular shape allows it to absorb shocks, maintain vehicle stability, and provide consistent performance even in harsh environments. The use of 304 stainless steel guarantees excellent corrosion resistance, making it ideal for vehicles exposed to moisture, salt, or road chemicals.
Key Features & Technical Specifications
- Material: 304 Stainless Steel (EN 1.4301) – offers superior rust resistance, high tensile strength, and durability.
- Irregular Geometry: Custom-designed to fit non-standard suspension layouts, such as MacPherson struts, multi-link systems, or torsion beam setups.
- Endurance Testing: Each spring undergoes dynamic load cycling (up to 1,000,000 cycles) to verify fatigue life and performance consistency.
- Precision Manufacturing: Cold-wound or hot-wound with CNC coiling machines, ensuring tight tolerances (±0.5mm on dimensions).
- Surface Treatment: Passivated or oiled as default; other finishes (e.g., zinc plating, Dacromet) available upon request.
- Load Capacity: Fully customizable – from light-duty passenger cars to heavy-duty trucks.
| Parameter | Typical Range | Remarks |
|---|---|---|
| Wire Diameter | 2.0 – 12.0 mm | Customizable based on load requirement |
| Outer Diameter | 20 – 200 mm | Varies with shape design |
| Free Length | 30 – 500 mm | Ranges vary by application |
| Solid Height | 10 – 150 mm | Depends on spring index |
| Spring Rate | 10 – 500 N/mm | Customizable |
| Operating Temperature | -40°C to +250°C | Suitable for extreme climates |
Why Choose Our Irregular Shaped Spring?
- Enhanced Vehicle Dynamics: The irregular profile allows precise tuning of spring rate and travel, improving ride comfort and handling.
- Longer Service Life: 304 stainless steel combined with endurance testing ensures resistance to fatigue, corrosion, and deformation.
- Tailored Solutions: We work with your engineering team to develop springs that match exact dimensional and load specifications.
- Cost-Effective Production: As a manufacturer with over 25 years of experience, we optimize material usage and production processes to offer competitive pricing without compromising quality.
- Global Logistics: Shipped from Tianjin, Qingdao, or Shanghai ports, with reliable delivery to all major markets worldwide.
Trust & Reliability
Anping County Boli Hardware Wiremesh Products Factory has been a pillar of the hardware industry since 1998. Our annual export value of US$5-10 million reflects the trust of international clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We maintain strict quality control at every stage – from raw material inspection to final endurance testing. Our commitment to precision and customer satisfaction has made us a preferred partner for OEM and aftermarket automotive suspension projects.
Contact us today to discuss your specific requirements. Send us your drawings, samples, or load specifications, and we will provide a tailored irregular shaped spring solution that meets your needs. With our rapid prototyping capability and flexible manufacturing, we can deliver samples within 2-3 weeks and mass production orders in 30-45 days. Experience the reliability of a spring that endures.
Frequently Asked Questions (FAQ)
1. What makes this spring “irregular shaped”?
Irregular shaped means the spring coil does not follow a standard cylindrical or conical form. It is custom-designed with non-uniform curves, off-center loops, or variable pitch to fit into restricted suspension spaces or to achieve specific load-deflection characteristics.
2. Can I order a small quantity for testing?
Yes, we accept sample orders (typically 5-50 pieces). Minimum order quantity (MOQ) for mass production is usually 500 pieces, but we can discuss lower MOQs for initial projects.
3. How do you ensure the spring passes endurance testing?
We perform dynamic fatigue testing using servo-hydraulic testers. The spring is cycled through its full stroke at a specified frequency until failure or until the required number of cycles (e.g., 500,000 or 1,000,000) is reached. We also monitor load drop and set loss.
4. What surface treatments are available?
Standard is passivation (for corrosion resistance). Optional treatments include zinc plating, black oxide, Dacromet coating, PTFE coating, or powder coating. Please specify your requirement.
5. Is this spring suitable for heavy-duty trucks?
Yes, we can adjust wire diameter, material grade, and heat treatment to accommodate heavy loads. For extreme applications, we may recommend custom spring designs with higher tensile strength.
6. Do you provide drawings or 3D models?
We can develop 3D CAD models based on your specifications. Typically, we work from a detailed drawing (PDF or DXF) or a physical sample. We also offer reverse engineering services.
7. What is the typical lead time?
For prototypes: 10-15 working days after drawing approval. For mass production: 30-45 working days, depending on order quantity and complexity. Urgent orders can be expedited.
8. How do you package the springs for export?
Springs are individually wrapped in anti-rust paper or oiled, then packed in cartons or wooden crates. For small orders, we use bubble wrap and corrugated boxes. Shipping is via sea, air, or express courier as per your preference.
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