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Help CenterMold Spring Used in Automotive Die Casting Mold 2.0mm Wire 28mm OD 120mm Long
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As a trusted manufacturer from Anping County Boli Hardware Wiremesh Products Factory (established in 1998), we specialize in producing high-quality Mold Springs specifically designed for automotive die casting molds. This 2.0mm wire diameter, 28mm OD, 120mm long spring is engineered to withstand the extreme conditions of die casting processes, offering reliable performance and long service life. Our springs are crafted from premium alloy steel with precise heat treatment, ensuring consistent elasticity and fatigue resistance. With over two decades of experience and annual exports exceeding US$5 million, we deliver components that meet the rigorous demands of global automotive manufacturers.
This mold spring is a critical component in die casting tools, where it is used for ejector systems, sliding cores, and other moving parts. The 2.0mm wire and 28mm outer diameter provide a balanced combination of strength and flexibility, while the 120mm length ensures adequate stroke for various mold designs. Key features include:
- High tensile strength – Withstands repeated compression cycles without permanent deformation.
- Uniform load distribution – Tightly wound coils ensure consistent force output.
- Corrosion resistance – Available with optional surface treatments (shot blast, oil dip, black oxide) for extended life in harsh environments.
- Precision dimensions – Manufactured to tight tolerances (±0.1mm on OD and length) for seamless integration into mold assemblies.
- Customizable end types – Closed, ground, or open ends available to suit specific application needs.
- Excellent fatigue life – Tested for over 1 million cycles under typical die casting loads.
Below is a table summarizing the technical specifications of our standard model. Custom dimensions and materials are available upon request to meet your exact requirements.
| Parameter | Value |
| Wire Diameter (d) | 2.0 mm |
| Outer Diameter (OD) | 28 mm |
| Free Length (L) | 120 mm |
| Total Coils (approx.) | 12 – 14 (depending on material) |
| Spring Rate (approx.) | 30 – 50 N/mm (customizable) |
| Maximum Load (approx.) | 800 – 1200 N (depending on material) |
| Material Options | Chrome Silicon Steel, Alloy Steel, Stainless Steel (optional) |
| Surface Finish | Shot Blast, Oil Dipped, Black Oxide, Zinc Plated (customizable) |
| End Type | Closed & Ground, Closed & Not Ground, Open (available) |
| Operating Temperature | -40°C to +250°C (for oil-tempered wire) |
The benefits of using our mold springs in your die casting molds include:
- Reduced downtime – Superior fatigue resistance means fewer spring replacements, keeping your production lines running smoothly.
- Improved part quality – Consistent spring force ensures uniform ejection of castings, minimizing defects.
- Cost efficiency – Competitive pricing without compromising quality, backed by our 26-year manufacturing expertise.
- Global compliance – Springs are designed to meet international standards for automotive die casting applications.
- Quick turnaround – We maintain a large inventory of popular sizes and can produce custom orders efficiently.
Anping County Boli Hardware Wiremesh Products Factory has been a reliable manufacturer since 1998, with an annual export value of US$5 million – US$10 million. Our products are shipped to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions from major ports including Tianjin, Qingdao, and Shanghai. We understand the critical role that mold springs play in die casting operations, and we are committed to delivering components that exceed expectations. Whether you need a standard size or a custom-designed spring, our team is ready to support you with technical advice and fast service. Contact us today to discuss your requirements or place an order.
Frequently Asked Questions
1. What material is used for this mold spring?
Our standard mold spring is made from chrome silicon steel or alloy steel, both of which offer excellent fatigue life and high-temperature resistance. Stainless steel options are also available for corrosive environments. Please specify your material preference when ordering.
2. Can you provide springs with different dimensions?
Yes, we offer custom manufacturing for wire diameters from 0.5mm to 10mm, outer diameters up to 150mm, and lengths up to 500mm. Please provide your required spring rate and load conditions for a tailored solution.
3. What is the typical load capacity of this spring?
The load capacity depends on the material and exact coil configuration. For our standard 2.0mm wire, 28mm OD, 120mm long spring, the approximate spring rate is 30–50 N/mm, and maximum load is 800–1200 N. We can provide detailed load-deflection curves upon request.
4. How long does this spring last in a die casting application?
Under normal operating conditions (temperatures up to 200°C, moderate loads), our springs typically exceed 1 million cycles before any significant loss of force. Actual service life may vary based on mold design and maintenance.
5. Do you offer surface treatments for corrosion protection?
Yes, we provide shot blasting, oil dipping, black oxide, and zinc plating as standard options. For high-temperature applications, we recommend oil-dipped or black oxide finish. Custom coatings are also available.
6. What are the packaging and shipping options?
Springs are packed in cartons with foam inserts to prevent damage during transit. We ship from Tianjin, Qingdao, or Shanghai ports via sea, air, or express courier. Minimum order quantity is 100 pieces for standard sizes; lower MOQ may be negotiated for samples.
7. Can I get a sample before placing a bulk order?
Absolutely. We offer sample orders with a small fee (refundable upon bulk order). Please contact us with your shipping details and we will arrange a sample within 5–7 working days.
8. Do you have any certifications for quality?
We maintain an in-house quality control system that follows industry standards. While we do not hold ISO or CE certifications at this time, our products are tested for dimensional accuracy, load capacity, and fatigue life. We can provide test reports upon request.
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