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Help CenterCustom Injection Molded Auto Water Pump Housing – Overmolding Option, UL Recognized Component
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Welcome to Changzhou Hongxinyutai Precision Mold Co., Ltd. – your trusted partner for precision injection molded components since 2017. Our Custom Injection Molded Auto Water Pump Housing with Overmolding Option is engineered to meet the rigorous demands of automotive cooling systems. As a UL Recognized Component, this product ensures superior quality, reliability, and safety, backed by our IATF 16949:2016-certified manufacturing facility. With a dedicated team of 51–100 skilled professionals and a factory spanning 1,000–3,000 square meters, we deliver tailored solutions that enhance performance and extend service life.
Product Features & Technical Specifications
Customized Injection Molding – Each water pump housing is precisely molded according to your design specifications, ensuring perfect fit and function in your automotive system.
Overmolding Option – Enhance sealing, vibration damping, or add connectors with our overmolding capability. This optional process bonds a second material (e.g., rubber, TPE) onto the base housing for improved performance.
UL Recognized Component – Our product meets the rigorous standards of Underwriters Laboratories (UL), providing assured electrical and thermal safety in automotive applications.
High-Performance Materials – We offer a range of engineering plastics such as PPS+GF30, PPS, or PEEK, selected for excellent heat resistance, chemical resistance, and dimensional stability under high-pressure coolant environments.
Precision Tolerances – Maintain tight tolerances down to ±0.05 mm, ensuring leak-proof seals and consistent flow channels.
Durable & Lightweight – Injection molded housings reduce weight compared to metal counterparts while offering corrosion resistance and long-term durability.
Customizable Color & Finish – Available in any RAL color, with optional textured or smooth surface finishes to match your assembly requirements.
Key Technical Parameters (Typical Values, Subject to Customization)
| Parameter | Value | Notes |
|---|---|---|
| Material Grade | GF30 / PPS / PEEK (custom) | Depending on temperature & pressure |
| Operating Temperature Range | -40°C to +150°C | Continuous use for PPS+GF30 |
| Max Working Pressure | Up to 3.5 bar | Application-specific |
| Tolerance | ±0.05 mm (critical dimensions) | Achievable with precision tooling |
| Overmolding Material | TPE / Silicone / NBR (optional) | Improves sealing & damping |
| UL Recognition | Component Recognition (File # available upon request) | Complies with UL 94 V-0 flammability |
Advantages for Your Business
Reduced Assembly Costs – Overmolding eliminates secondary seals or gaskets, streamlining your production line.
Enhanced Durability – High-strength plastic resists coolant corrosion, thermal cycling, and mechanical stress – outperforming traditional metal housings in many applications.
Lightweight Design – Up to 60% weight reduction vs. aluminum, contributing to fuel efficiency and lower vehicle emissions.
Faster Time-to-Market – We offer rapid prototyping and short lead times (typically 4–6 weeks for mold manufacturing, 2–3 weeks for production).
Full Custom Support – Our in-house mold design team works with your 3D models to optimize gate placement, cooling channels, and ejection for defect-free parts.
Why Choose Changzhou Hongxinyutai Precision Mold Co., Ltd.?
Established in 2017, our factory spans 1,000–3,000 square meters and employs 51–100 experienced professionals. We are proud to hold IATF 16949:2016 certification (automotive quality management system), reflecting our commitment to continuous improvement and defect prevention. Our products are shipped to major markets worldwide including North America, South America, Europe, Southeast Asia, and the Middle East. We serve clients in the automotive aftermarket and OEM sectors, delivering custom solutions that meet or exceed expectations.
Take the next step towards reliable water pump performance. Contact us today with your drawings or requirements for a competitive quotation. Our engineers are ready to discuss overmolding options, material selection, and UL compliance details. Partner with Hongxinyutai – where precision meets innovation.
Frequently Asked Questions (FAQ)
Q: What is overmolding, and how does it benefit my water pump housing?
A: Overmolding is a two-shot injection process where a second material (e.g., rubber or TPE) is molded onto the base housing. It creates integrated seals, dampens vibrations, and eliminates the need for separate gaskets – reducing assembly time and potential leak points.Q: How long does it take to produce a custom mold for the water pump housing?
A: Mold development typically takes 4–6 weeks, depending on complexity. Production of finished parts starts after mold approval, with lead times of 2–3 weeks for standard quantities. We also offer 3D printing for rapid prototypes to validate fit and function.Q: Is your product UL recognized? Can I get the UL file number?
A: Yes, our custom injection molded auto water pump housing is a UL Recognized Component under the appropriate category. We can provide the UL file number and compliance documentation upon request and after NDA.Q: What materials are available for the housing? Can I use high-temperature plastics?
A: We offer a wide range of engineering thermoplastics including PA66+GF30, PPS (polyphenylene sulfide), PEEK (polyether ether ketone), and others. For high-temperature applications (continuous >150°C), PPS or PEEK is recommended. Material selection is based on your coolant type, pressure, and thermal requirements.Q: What is the minimum order quantity (MOQ)?
A: MOQ is typically 1,000 pieces per design, but we can accommodate lower volumes for prototype runs or small-batch testing. Contact our sales team for specific MOQ discussions.Q: Do you provide tooling design and maintenance services?
A: Absolutely. Our in-house mold design team uses advanced CAD/CAM software to optimize cooling, gating, and ejection. We also offer mold maintenance, repair, and spare parts services to extend tool life.Q: How do you ensure quality and consistency across large production runs?
A: We follow IATF 16949:2016 quality procedures, including in-process inspection, SPC (Statistical Process Control), and final functional testing. Each batch is documented with material certificates, dimensional reports, and performance data.Q: Can you ship to my country? What ports do you use?
A: We ship worldwide via major ports in Jiangsu, Shanghai, and Shenzhen, China. Our logistics partners offer cost-effective sea freight, air freight, and express delivery to all global regions including North America, Europe, Asia, and Oceania.
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