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Help CenterVolute Spring for Injection Molding Machines, 15-60mm Free Length, Anti-Fatigue Design
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As a leading manufacturer with over 25 years of experience, Anping County Boli Hardware Wiremesh Products Factory proudly presents our Volute Spring for Injection Molding Machines with a free length range of 15-60mm and an Anti-Fatigue Design. These springs are engineered to deliver consistent performance under high-cycle operations, ensuring your injection molding machines maintain precision and reliability. Our factory, established in 1998, specializes in producing durable springs that meet the rigorous demands of the plastics industry, helping you reduce downtime and extend mold life.
Every volute spring is crafted from high-quality spring steel, available in grades such as 65Mn and 60Si2Mn, to provide excellent resilience and fatigue resistance. The unique volute (conical) shape allows for progressive compression, distributing load evenly and minimizing stress concentration. This design is particularly advantageous for injection molding machines where consistent clamping force and ejection action are critical.
Key Features and Technical Specifications:
- Free Length Range: 15mm to 60mm, accommodating various mold cavity sizes and stroke requirements.
- Anti-Fatigue Design: Optimized geometry and material selection reduce internal stress, extending service life beyond standard cylindrical springs.
- Progressive Compression: The conical shape provides variable spring rate, offering smooth engagement and preventing sudden force spikes.
- End Types: Closed and ground ends ensure flat seating and stable contact with mold plates, reducing wear.
- Surface Treatment: Phosphating or painting options available to resist corrosion and improve durability in harsh workshop environments.
- Customizable Dimensions: Wire diameter, outer diameter, and free length can be tailored to your specific machine requirements.
- Load Capacity: Designed to withstand repeated dynamic loads typical of injection molding cycles (up to 500,000 cycles under normal conditions).
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Free Length | 15mm – 60mm | As per drawing |
| Wire Diameter | 2.0mm – 6.0mm | Up to 10mm |
| Outer Diameter (max) | 20mm – 80mm | Up to 120mm |
| Material | 65Mn, 60Si2Mn | Stainless steel (optional) |
| Surface Treatment | Phosphating | Painting, zinc plating, or Dacromet |
Benefits for Your Injection Molding Process:
- Reduced machine vibration and noise due to progressive spring compression.
- Consistent ejection force, minimizing part damage and improving yield.
- Longer maintenance intervals – our anti-fatigue design can last up to 3 times longer than standard springs in high-cycle applications.
- Compatibility with both hydraulic and toggle-type injection molding machines from brands like Engel, Husky, Arburg, and more.
- Easy installation – no special tools required; direct replacement for most OEM spring sets.
Our volute springs are produced using advanced CNC coiling and heat treatment processes, ensuring tight tolerances and consistent performance batch after batch. Each spring undergoes rigorous quality inspection including load testing and dimensional verification. We follow strict internal standards to guarantee that every spring meets your application requirements.
At Anping County Boli Hardware Wiremesh Products Factory, we have been serving global customers since 1998. With an annual export value of US$5 million to US$10 million, we supply springs to markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our experienced team can provide technical support and custom solutions based on your specific mold design and machine parameters. We ship from major ports including Tianjin, Qingdao, and Shanghai, ensuring timely delivery worldwide.
Choosing our volute spring means investing in reliability and cost-effectiveness. Contact us today for a quote or to discuss your unique requirements. We are committed to delivering springs that keep your injection molding operations running smoothly and efficiently.
Frequently Asked Questions (FAQ):
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Q: What is the difference between a volute spring and a cylindrical spring?
A: Volute springs have a conical shape that provides progressive compression, meaning the spring rate increases as it compresses. This reduces the risk of coil binding and offers smoother force application, making them ideal for injection molding machines where consistent pressure is needed. -
Q: Can I use these springs in other types of machinery?
A: Yes, while designed for injection molding machines, they can be used in any application requiring progressive spring action, such as presses, stamping dies, and heavy-duty mechanical equipment. However, we recommend consulting our technical team to confirm suitability. -
Q: How do I determine the correct free length for my mold?
A: The free length should match the required deflection and installation space. Our standard range is 15-60mm, but we can customize. Typically, you should measure the distance between the spring seat and the contact surface when the mold is open, then subtract the desired preload. -
Q: Are these springs resistant to high temperatures?
A: Standard spring steel (65Mn, 60Si2Mn) can withstand temperatures up to 200°C. For higher temperature environments (e.g., hot runner molds), we offer stainless steel or heat-treated alloy options. Please specify your requirements. -
Q: What is the typical lead time for custom orders?
A: For standard sizes, we ship within 7-15 working days. Custom orders may require 15-25 working days depending on complexity. We can expedite for urgent needs. -
Q: Do you provide samples for testing?
A: Yes, we can provide samples upon request. Sample cost is negotiable, and we offer free samples for qualified inquiries. Shipping charges apply. -
Q: How do I ensure the anti-fatigue design works for my cycle frequency?
A: Our springs are tested for over 500,000 cycles under normal conditions. For higher cycle frequencies (e.g., 24/7 operation), we can adjust the material and heat treatment to further enhance fatigue life. Contact us with your specific data. -
Q: What certifications do your springs have?
A: Our products meet internal quality standards and are compliant with general industry requirements. We do not hold specific third-party certifications, but we can provide material test reports and dimensional inspection certificates upon request.
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