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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer since 1998, with annual export value exceeding US$5 Million and serving global markets including North America, Europe, Asia, and Africa. Our Custom Spring with 30% Load Capacity Testing Report is engineered to deliver guaranteed performance under demanding conditions. Each spring undergoes rigorous load testing to ensure it meets or exceeds the specified 30% load capacity, providing you with reliable and consistent operation in your application.
By combining over two decades of manufacturing expertise with state-of-the-art testing equipment, we offer springs that are not only custom-made to your exact dimensions but also backed by a comprehensive testing report. This ensures that every spring you receive performs exactly as promised, reducing downtime and enhancing the safety of your equipment.
Our springs are standard compliant with industry norms, and we provide full documentation to support your quality assurance requirements. Whether you need compression, tension, or torsion springs, our team can tailor the design, material, and finish to match your specific needs.
Product Features & Technical Specifications
- Guaranteed Load Capacity: Each spring is tested at 30% of its rated load capacity, ensuring it can handle the required stress without permanent deformation.
- Standard Compliant: Manufactured in accordance with international standards (e.g., DIN, ASTM, JIS) – specific certifications available upon request.
- Customizable Dimensions: Wire diameter from 0.5mm to 20mm, outer diameter up to 300mm, free length as per your specification.
- Wide Material Selection: Carbon steel, stainless steel (304, 316), alloy steel, or optional materials for high-temperature or corrosive environments.
- Surface Treatments: Zinc plating, black oxide, powder coating, or passivation for enhanced corrosion resistance.
- Precision Manufacturing: CNC coiling, heat treatment, and shot peening for consistent quality and long fatigue life.
- Testing Report Included: Each batch comes with a detailed load capacity test report, confirming compliance with your specified requirements.
- Applications: Ideal for automotive suspension, industrial valves, agricultural machinery, aerospace components, and general mechanical assemblies.
Typical Performance Parameters
| Parameter | Value Range |
| Wire Diameter | 0.5 – 20 mm |
| Outer Diameter | Up to 300 mm |
| Free Length | Custom (10 – 500 mm) |
| Load Capacity (30% test) | Up to 5000 N (depending on design) |
| Operating Temperature | -40°C to 250°C (material dependent) |
| Surface Finish | Zinc, Black Oxide, Passivation, etc. |
Why Choose Our Custom Spring?
- Reliability: Every spring is tested at 30% load capacity to ensure it performs under real-world stress.
- Customization: We work closely with you to design the exact spring you need, from material to geometry and finish.
- Quality Assurance: In-house testing facilities and strict process control guarantee consistent quality.
- Competitive Pricing: Direct factory pricing with no middlemen – we offer cost-effective solutions without compromising quality.
- Fast Lead Times: Typical sample production in 5-7 working days, mass production in 15-20 days.
Trust Anping County Boli Hardware Wiremesh Products Factory – a manufacturer with over 25 years of experience, exporting to more than 20 countries worldwide. Our annual export value of US$5 Million – US$10 Million is a testament to the trust our global clients place in our products. We ship from major ports including Tianjin, Qingdao, and Shanghai, ensuring timely delivery to your doorstep.
Each spring order is accompanied by a 30% Load Capacity Testing Report that verifies compliance with your specified standards. This documentation provides you with full traceability and peace of mind.
Contact us today for a custom spring solution that guarantees performance. Our engineering team is ready to assist you with design, prototyping, and mass production. Let us prove why we are a preferred partner for springs in demanding applications.
Frequently Asked Questions (FAQ)
Q1: What does the “30% Load Capacity Testing” mean?
A: It means we test each spring at 30% of its rated load capacity to ensure it can withstand that stress without permanent set or failure. This test simulates real-world operating conditions and provides a safety margin.
Q2: How do I know if the spring meets my industry standards?
A: Our springs are manufactured to comply with common international standards (DIN, ASTM, JIS, etc.). You can specify your required standard when ordering, and we will tailor the production accordingly. The testing report will confirm compliance.
Q3: Can you make springs with non-standard dimensions or materials?
A: Yes, we specialize in custom springs. You can provide your own design or work with our engineers to develop a spring that meets your precise requirements. We offer a wide range of materials and finishes.
Q4: What is the minimum order quantity (MOQ)?
A: The MOQ depends on the spring size and complexity. For standard designs, it can be as low as 100 pieces. For custom designs, we can discuss smaller quantities for prototyping. Please contact us for a specific quote.
Q5: How long does it take to get a sample or a production batch?
A: Sample production typically takes 5-7 working days after design approval. Mass production lead time is 15-20 working days, depending on quantity and complexity. We can expedite for urgent orders.
Q6: Do you provide a testing report for every batch?
A: Yes, we include a 30% Load Capacity Testing Report with each batch. The report documents the test results and confirms that the springs meet the guaranteed performance criteria.
Q7: What coatings are available for corrosion resistance?
A: We offer zinc plating, black oxide, passivation, powder coating, and other treatments. For highly corrosive environments, we recommend stainless steel springs (304 or 316).
Q8: Can I get a sample before placing a large order?
A: Absolutely. We encourage sample testing to verify performance. Sample costs are reasonable, and we can deduct them from the first production order. Contact us to arrange a sample.
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