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Help CenterMold Spring for Plastic Injection Mold 1.2mm Wire 18mm OD 70mm Long Standard Compliant
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – your reliable partner for precision mold components since 1998. Our Mold Spring for Plastic Injection Mold (1.2mm wire, 18mm OD, 70mm long) is engineered to deliver consistent performance in demanding injection molding applications. With decades of manufacturing experience and annual export value exceeding US$5 million, we ensure every spring meets strict industry standards for longevity and reliability. This standard compliant spring is designed to optimize mold cycle times and reduce downtime, making it a trusted choice for toolmakers worldwide.
Below is a detailed breakdown of the product specifications, advantages, and why Boli Hardware is the right supplier for your mold components.
Product Overview & Technical Specifications
This mold spring is specifically crafted for plastic injection molds, offering a balance of strength, flexibility, and durability. The key features include:
- Wire Diameter: 1.2 mm – provides adequate force for core pulling, ejector plates, and slide actions.
- Outer Diameter (OD): 18 mm – standard size compatible with most mold bases and guided components.
- Free Length: 70 mm – commonly used in medium-stroke applications.
- Material: High-quality spring steel (65Mn or similar, customizable upon request) – offers excellent fatigue life.
- Surface Finish: Available in black oxide or zinc plating (optional) to resist corrosion and reduce friction.
- End Type: Closed and ground ends (optional) for square seating and uniform load distribution.
- Standard Compliance: Manufactured to meet international injection mold spring standards (e.g., comparable to ISO/GB standards).
| Parameter | Value | Remarks |
|---|---|---|
| Wire Diameter (d) | 1.2 mm | ±0.02 mm tolerance |
| Outer Diameter (OD) | 18 mm | ±0.3 mm |
| Free Length (L) | 70 mm | ±1.0 mm |
| Material | Spring Steel (65Mn, 50CrVA, etc.) | Customizable |
| Surface Treatment | Black Oxide / Zinc / None | Optional |
| End Type | Closed & Ground / Open | Optional |
Key Advantages & Benefits for Your Injection Molds
Choosing the right mold spring is essential for mold performance, maintenance, and part quality. Here’s why our spring stands out:
- Increased Mold Life: The spring steel material and precise manufacturing reduce stress concentration, minimizing breakage and extending service life.
- Consistent Force Output: Uniform coil spacing and close tolerance control ensure reliable spring force over thousands of cycles.
- Corrosion Resistance: Optional surface treatments protect against coolant and humidity in mold environments.
- Easy Installation: Standard dimensions fit widely used mold plates and bushings, reducing modification time.
- Customizable Options: We offer variations in wire diameter, OD, length, material, and end type to suit your specific mold design.
- Cost-Effective: As a manufacturer with 20+ years of experience, we provide competitive pricing without compromising quality.
For example, a typical injection mold for automotive parts may require dozens of springs. Using our 1.2mm×18mm×70mm spring can improve ejection efficiency and reduce flash due to consistent force. The closed & ground ends ensure the spring sits flat on the plate, preventing tilting and uneven wear.
Quality Assurance & Company Strength
Anping County Boli Hardware Wiremesh Products Factory has been a trusted manufacturer since 1998. Our annual export value of US$5-10 million reflects our ability to serve global markets including North America, Europe, Southeast Asia, and the Middle East. We ship from major ports such as Tianjin, Qingdao, Shanghai, and Qingdao, ensuring timely delivery.
We have implemented strict quality control procedures throughout production: from raw material inspection to dimensional measurement and load testing. Each batch of springs is sampled and checked for critical parameters. Although we do not claim specific third-party certifications, our products are designed to comply with common industry standards for injection mold springs, and we can provide test reports upon request.
Our main markets span diverse industries, and we have earned a reputation for reliability and responsiveness. Whether you need a standard size or a custom solution, our team will work closely with you to meet your requirements.
Frequently Asked Questions (FAQ)
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Q: What materials are used for your mold springs?
A: We typically use spring steel such as 65Mn or 50CrVA. Other materials like stainless steel or high-tensile alloys are available upon request. -
Q: Can you provide springs with different wire diameters or lengths?
A: Yes, we offer customization. Please specify your required dimensions, and we will prepare a quotation. -
Q: Are these springs suitable for high-temperature molds?
A: Standard springs are designed for typical mold temperatures (up to 150°C). For higher temperature applications, we recommend using heat-treated or special alloy springs – please consult us. -
Q: Do you offer surface treatment like zinc plating or black oxide?
A: Yes, both are optional. Please indicate your preference when ordering. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ varies by size. For standard sizes, we can accept small orders (e.g., 100 pcs). Custom orders may require higher quantities. -
Q: How do you ensure the spring dimensions are accurate?
A: We use calibrated measuring tools and perform 100% inspection on critical dimensions for each batch. A sample inspection report is available. -
Q: What is the typical lead time?
A: For standard sizes, lead time is 7-15 days after order confirmation. Custom orders may take 15-25 days depending on complexity. -
Q: Can you provide samples for testing?
A: Yes, we offer samples. Please contact us to discuss sample policy and shipping costs.
Ready to improve your injection mold performance? Contact Anping County Boli Hardware Wiremesh Products Factory today. With our 25 years of manufacturing experience, global shipping network, and commitment to quality, you can rely on us for precision mold springs that meet your exact specifications. Let us be your trusted partner for mold components.
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