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As a professional manufacturer of precision molds, Changzhou Hongxinyutai Precision Mold Co., Ltd. brings you our latest innovation: the Auto EV Water Pump Plastic Injection Mould with a smooth surface and ultrasonic welding compatibility. With over 7 years of expertise in the tooling industry and a dedicated team of 51–100 employees, we have engineered this mold to meet the rigorous demands of electric vehicle water pump production. Our mold ensures consistent quality, excellent surface finish, and seamless integration with ultrasonic welding processes, making it an ideal choice for manufacturers seeking reliable and efficient production solutions.
The mold is designed to produce high-performance plastic components for auto EV water pumps, which are critical for thermal management in electric vehicles. By combining precision injection molding with advanced surface treatment, we achieve a smooth, burr-free cavity that enhances the final product's flow characteristics and reduces post-processing. The ultrasonic welding compatibility feature allows for rapid assembly of pump housings and impellers, improving overall production efficiency.
We understand that the automotive industry demands strict adherence to dimensional accuracy and repeatability. Therefore, our mold is manufactured using high-grade steel and undergoes rigorous quality checks, including hardness testing, surface roughness measurement, and trial runs. The mold is compatible with standard injection molding machines and can be customized to meet your specific part geometry and production volume requirements.
Key Features & Technical Specifications
- High Precision Cavity: Achieves tight tolerances ±0.02mm, ensuring consistent part dimensions across all production cycles.
- Superior Surface Finish: Smooth cavity surface (Ra ≤ 0.4μm) reduces friction, enhances flow, and eliminates the need for secondary polishing.
- Ultrasonic Welding Compatible: Designed with optimized gate and runner system to produce parts with excellent weld-line integrity, easily integrated with ultrasonic assembly.
- Durable Construction: Made from premium tool steel (e.g., P20, H13, or 1.2344) with heat treatment for long mold life (up to 1,000,000+ shots).
- Efficient Cooling System: Conformal cooling channels (optional) reduce cycle time by up to 30% and minimize warpage.
- Modular Design: Quick-change inserts and interchangeable cores allow for flexible production of different pump models.
- Automation Ready: Ejector pin layout and side-core actuators are designed for easy integration with robotic take-out systems.
- Compliance: Manufactured under TS16969 quality management system, ensuring traceability and process control.
| Mold Cavity | 1-4 cavities (customizable) |
| Injection Weight | 50-500g per part (depending on design) |
| Mold Base | LKM or HASCO standard (customizable) |
| Steel Hardness | 48-52 HRC (core) / 50-54 HRC (cavity) |
| Surface Roughness | Ra ≤ 0.4μm |
| Welding Compatibility | Ultrasonic, vibration, or hot plate welding |
| Mold Lifespan | 500,000 – 1,500,000 shots (depending on material) |
Benefits for Your Production
- Reduced Cycle Time: Optimized cooling and gate design allow faster injection cycles, increasing your daily output.
- Lower Scrap Rate: Consistent cavity filling and smooth surface reduce defects such as flash, sink marks, and weld lines.
- Cost Savings: The durable construction and long mold life minimize maintenance and replacement costs over time.
- Faster Market Introduction: Our experienced team can complete mold design and manufacturing within 30–45 days, helping you launch your EV water pump components sooner.
- Global Compatibility: Mold dimensions and fitting are designed to match standard injection molding machines from major brands (e.g., Engel, Haitian, KraussMaffei).
- Complete Support: We provide trial runs, sample testing, and after-sales technical support to ensure seamless production startup.
Frequently Asked Questions (FAQ)
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Q: What materials can be used with this mold for EV water pump parts?
A: The mold is compatible with engineering plastics such as PA66+GF30, PPS, PPA, and PEEK, which are commonly used in automotive cooling systems. We can adjust the steel and surface treatment to suit specific resin requirements. -
Q: Can you provide mold samples before mass production?
A: Yes, we offer sample trial runs at our facility. Typically, we produce 50–200 samples for dimensional inspection and functional testing. Samples can be shipped to you for approval. -
Q: How do you ensure the smooth surface and ultrasonic welding compatibility?
A: Our mold undergoes a multi-step polishing process to achieve Ra ≤ 0.4μm. The gate and runner system is designed to minimize internal stress and ensure uniform weld lines, which are critical for ultrasonic welding strength. -
Q: What is the typical lead time for a custom mold?
A: Standard lead time is 30–45 days from design approval. For complex molds with multiple cavities or special features, it may extend to 55–60 days. We can provide a detailed schedule upon request. -
Q: Do you offer mold maintenance and repair services?
A: Absolutely. We provide a full range of after-sales services including mold maintenance, re-polishing, steel repair, and spare parts replacement. Our team can also provide on-site training for your technicians. -
Q: Is the mold certified for automotive quality standards?
A: Yes, our manufacturing process is certified under TS16969 (IATF 16949 equivalent). We follow strict quality control procedures, including FMEA, control plan, and PPAP documentation. -
Q: What is the minimum order quantity (MOQ) for this mold?
A: MOQ is 1 set. However, for custom molds, we require a design deposit. We are flexible and can discuss volume pricing for multiple molds. -
Q: Can you ship the mold to different countries?
A: Yes, we ship worldwide via sea or air from ports in Jiangsu, Shanghai, and Shenzhen. We have experience exporting to North America, Europe, Southeast Asia, and other regions. All molds are securely packed in wooden crates.
Why Choose Changzhou Hongxinyutai Precision Mold?
Founded in 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. has grown into a trusted partner for automotive and EV component manufacturers. Our factory spans 1,000–3,000 square meters, equipped with advanced CNC machining centers, EDM, wire-cut machines, and CMM inspection equipment. With a team of 51–100 skilled professionals, we deliver molds that meet the highest standards of precision and durability.
We have successfully served clients across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and other global markets. Our TS16969 certification ensures that every mold we produce follows rigorous quality management processes, from design to delivery. Whether you need a prototype mold for testing or a production mold for high-volume manufacturing, we are committed to providing cost-effective solutions without compromising on quality.
Contact us today to discuss your specific requirements. Our engineering team is ready to assist you with mold design, optimization, and technical support. Let us help you achieve efficient, reliable production of auto EV water pump components with our precision injection mold.
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