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Help Center304 Stainless Steel Mold Spring 1.0mm Wire Diameter 20mm OD 60mm Long Compression Spring
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As a leading manufacturer from Anping County Boli Hardware Wiremesh Products Factory, established in 1998, we specialize in producing high-quality compression springs for demanding applications. Our 304 Stainless Steel Mold Spring with 1.0mm wire diameter, 20mm outer diameter, and 60mm free length is engineered to deliver consistent performance in die and mold environments. With annual export value exceeding US$5 million, we serve customers across North America, Europe, and Asia, ensuring reliable supply and precision engineering.
This spring is crafted from premium 304 stainless steel, offering excellent corrosion resistance and durability. It is designed for use in injection molds, stamping dies, and other precision tooling where consistent force and long service life are required. The compact dimensions make it ideal for tight spaces, while the wire diameter of 1.0mm provides a balanced combination of flexibility and strength.
Key Features & Technical Specifications
- Material: 304 Stainless Steel (AISI 304) – excellent anti-rust property for humid or corrosive environments.
- Wire Diameter: 1.0 mm – provides precise elasticity and load capacity.
- Outer Diameter (OD): 20 mm – suitable for standard mold cavities.
- Free Length: 60 mm – compact size for limited space installations.
- End Type: Closed and ground ends (optional) or open ends – customizable to your application.
- Surface Finish: Plain or polished finish available upon request.
- Coil Direction: Right-hand helix as standard; left-hand available on request.
- Load Capacity: Can be customized according to your required spring rate and deflection.
| Parameter | Value | Remarks |
|---|---|---|
| Material Grade | 304 Stainless Steel | Corrosion resistant, non-magnetic in annealed condition |
| Wire Diameter (d) | 1.0 mm | ±0.02 mm tolerance |
| Outer Diameter (OD) | 20 mm | ±0.1 mm tolerance |
| Free Length (L0) | 60 mm | ±0.5 mm tolerance |
| Total Coils | Approx. 8–10 | Varies with end configuration |
| End Type | Closed & Ground (optional) | Improves stability and perpendicularity |
| Surface Treatment | Plain / Passivated | Resists oxidation |
Advantages for Your Application
- Corrosion Resistance: 304 stainless steel ensures the spring can withstand exposure to moisture, chemicals, and washdown environments commonly found in mold shops.
- High Precision: Tight tolerances on wire diameter, OD, and free length guarantee consistent performance and easy installation into pre-designed cavities.
- Long Service Life: Properly heat-treated and stress-relieved, our springs resist fatigue and maintain spring rate over millions of cycles.
- Customizable Options: We offer various end types, surface finishes, and load adjustments to match your specific mold design requirements.
- Cost-Effective: As a direct manufacturer with over 25 years of experience, we provide competitive pricing without compromising quality.
Our factory is located in Hengshui, Hebei, China, with convenient shipping from Tianjin, Qingdao, or Shanghai ports. We export to major markets worldwide, including North America, Europe, Southeast Asia, and Oceania. With annual export revenue exceeding US$5 million, we have established a reputation for reliable delivery and consistent product quality. Each spring undergoes rigorous inspection to ensure dimensional accuracy and material integrity.
We invite you to contact us for more information or to request a customized spring solution. Our technical team is ready to assist you with sample testing and bulk orders.
Frequently Asked Questions
Q1: What is the maximum operating temperature for this spring?
A: 304 stainless steel springs can typically operate from -200°C to +300°C. For high-temperature applications, we recommend consulting our technical team for material selection.
Q2: Can you provide springs with different end configurations?
A: Yes, we offer closed ends, closed and ground ends, or open ends. Please specify your requirement when ordering.
Q3: What is the minimum order quantity (MOQ)?
A: Our MOQ for standard sizes is 100 pieces. For custom sizes, MOQ may vary; please contact us for details.
Q4: How do you ensure the spring does not lose its tension over time?
A: Our springs are manufactured with proper stress relief and undergo load testing to ensure minimal set. For critical applications, we recommend periodic replacement based on cycle count.
Q5: Do you offer custom sizes beyond the listed dimensions?
A: Absolutely. We can produce compression springs with varying wire diameters, OD, free length, and spring rate according to your drawings or specifications.
Q6: What is the lead time for a standard order?
A: For standard sizes, lead time is 7–15 days after order confirmation. Custom orders may take 15–25 days depending on complexity.
Q7: Can this spring be used in a food-grade environment?
A: 304 stainless steel is generally considered food-safe. However, if direct food contact is involved, we recommend a passivated or electropolished surface finish for enhanced hygiene.
Q8: Do you provide free samples?
A: Yes, we offer samples for evaluation. Please contact our sales team to discuss sample policy and shipping costs.
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