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Help CenterAutomotive Electric Water Pump Molded Parts, 12V/24V, Temperature Range -40°C to +125°C, Leak-Proof Design
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As a leading manufacturer based in Changzhou, Jiangsu, China, Changzhou Hongxinyutai Precision Mold Co., Ltd. specializes in producing high-quality automotive electric water pump molded parts. Since our establishment in 2017, we have dedicated ourselves to precision injection molding, serving a wide range of global markets including North America, Europe, Southeast Asia, and beyond. Our Automotive Electric Water Pump Molded Parts are engineered to operate reliably under extreme conditions, with a wide temperature range from -40°C to +125°C and a leak-proof design that ensures long-term durability. With a factory size of 1,000–3,000 square meters and a team of 51–100 experienced employees, we deliver consistent quality backed by TS16969 certification.
Our molded parts are designed for 12V/24V systems, making them suitable for a broad spectrum of electric water pump applications in passenger cars, commercial vehicles, and electric vehicles. The leak-proof design incorporates advanced sealing technologies and precision molding, effectively preventing coolant leakage and extending pump life. Below we provide detailed technical specifications and product features to help you understand the value we offer.
Key Technical Specifications
| Parameter | Value |
| Operating Voltage | 12V / 24V DC |
| Temperature Range | -40°C to +125°C |
| Sealing Type | Leak-Proof (O-ring seal + ultrasonic welding) |
| Main Material Options | PPS (Polyphenylene Sulfide), PA66+GF30, PBT+GF |
| Pressure Resistance | Up to 3 bar (customizable) |
| Surface Finish | High-gloss, smooth, burr-free |
| Certification | TS16969 |
Product Features & Benefits
- Wide Temperature Tolerance: Our molded parts maintain dimensional stability and mechanical strength from -40°C to +125°C, ensuring reliable performance in both freezing winters and hot engine compartments.
- Leak-Proof Design: Each component is precision-molded with integrated sealing features (O-ring grooves, welded joints) that prevent coolant leaks, reducing maintenance costs and improving pump longevity.
- Dual Voltage Compatibility: Designed for 12V and 24V vehicle electrical systems, these parts can be used in standard passenger cars as well as heavy-duty trucks and electric vehicles without modification.
- High-Strength Materials: We use engineering plastics like PPS and PA66+GF30, which offer excellent chemical resistance to coolants, low water absorption, and high creep resistance under load.
- Precision Molded Dimensions: With our state-of-the-art injection molding machines and in-house mold design, we achieve tolerances as tight as ±0.05 mm, ensuring perfect fit and easy assembly.
- Customizable Options: We can modify the housing design, connector types, mounting brackets, and material grades to meet specific OEM requirements. Minimum order quantity is flexible.
- TS16969 Certified Production: Our manufacturing process follows strict quality management standards, with 100% dimensional inspection and leak testing before shipment.
The automotive electric water pump market demands components that can withstand thermal cycling, vibration, and prolonged exposure to coolant. Our molded parts are tested for thermal shock resistance, salt spray corrosion, and pressure pulsation cycles. Compared to metal alternatives, our plastic molded parts offer significant weight reduction (up to 40% lighter), lower cost, and better corrosion resistance. They are also compatible with brushless DC motor designs, contributing to overall pump efficiency.
From a customer perspective, choosing our parts means fewer warranty claims, simplified assembly, and improved pump reliability. The leak-proof design alone can reduce the risk of engine overheating, which is critical for vehicle safety. Additionally, our parts are RoHS compliant and free from restricted substances, meeting global environmental standards.
Frequently Asked Questions
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Q: Can these molded parts be used in both 12V and 24V pumps?
A: Yes, the parts are designed to fit pump assemblies that operate on either 12V or 24V DC systems. The voltage does not affect the mechanical dimensions or sealing performance. -
Q: What is the maximum temperature these parts can withstand continuously?
A: The continuous operating temperature range is -40°C to +125°C. For short peaks, the material can tolerate up to 140°C, but we recommend staying within the specified range for optimal longevity. -
Q: Do you offer custom mold design for unique pump shapes?
A: Absolutely. As a precision mold manufacturer, we can design and build molds for custom water pump housings, impellers, and connectors. Please provide your 3D CAD file or sample for evaluation. -
Q: How do you ensure the leak-proof performance?
A: We use a combination of O-ring grooves molded into the part and ultrasonic welding for sealing joints. Every production batch undergoes 100% air leak testing under pressure. -
Q: What is the typical lead time for mass production?
A: For standard parts, lead time is 15–25 working days. Custom mold development takes an additional 30–45 days. We can arrange expedited shipping from Jiangsu, Shanghai, or Shenzhen ports. -
Q: Are these parts compatible with electric vehicle coolant pumps?
A: Yes, many EV water pumps use similar molded housings. Our materials are suitable for water-glycol coolant mixtures and operate reliably in the temperature range typical for EVs. -
Q: Do you have stock samples available for testing?
A: Yes, we keep a small inventory of common sizes. Please contact our sales team to request samples. Custom samples may incur a mold fee. -
Q: What is the minimum order quantity (MOQ) for these parts?
A: The MOQ for standard parts is 1000 pieces. For custom designs, we can discuss a lower MOQ based on mold investment. We welcome trial orders for new customers.
With over 7 years of experience in precision mold manufacturing, Changzhou Hongxinyutai Precision Mold Co., Ltd. has supplied automotive electric water pump components to clients across North America, South America, Europe, Asia, and Africa. Our factory is equipped with 15+ advanced injection molding machines and a dedicated quality control lab. We have shipped millions of molded parts without major quality complaints. Our TS16969 certification reflects our commitment to continuous improvement and customer satisfaction.
Contact us today for a quote or technical consultation. Whether you need a standard part or a custom solution, we are ready to support your water pump manufacturing needs. Let us help you achieve reliable, leak-free cooling performance with our precision molded components.
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