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Home > Auto, Motorcycle Parts & Accessories > Auto Parts > Other Auto Parts > Custom Design PA66+GF40 Auto Motor Bobbin, 1*4 Cavity Mold, German GPM58 Steel, Hot to Cold Runner, Glossy Surface Finish
Custom Design PA66+GF40 Auto Motor Bobbin, 1*4 Cavity Mold, German GPM58 Steel, Hot to Cold Runner, Glossy Surface Finish
Product Spotlights
Custom PA66+GF40 auto motor bobbin mold with 1x4 cavity, German GPM58 steel, and hot-to-cold runner. Delivers glossy surface finish, reduced material waste, and long mold life. Designed for automotive applications with TS16969 quality system support. Fully customizable geometry for reliable motor component production.
Negotiable
MOQ: 5000 Pieces (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, PA66 + 40% Glass Fiber
cavity:
1*4 Cavity
steel_type:
German GPM58
Payment & Shipping
Payment Methods:
Port of Shipment:
Jiangsu，changzhou
Delivery Detail:
30 days
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Material
Other, PA66 + 40% Glass Fiber
cavity
1*4 Cavity
steel_type
German GPM58
runner_system
Hot to Cold Runner
surface_finish
Glossy
application
Auto Motor Components
certification
TS16969
design_service
Custom Design Available
Changzhou Hongxinyutai Precision Mold Co., Ltd., established in 2017 with a 1,000–3,000 sqm factory and 51–100 skilled employees, brings years of experience in precision injection mold manufacturing. Our Custom Design PA66+GF40 Auto Motor Bobbin Mold is engineered for demanding automotive applications, featuring a robust 1*4 cavity layout, premium German GPM58 steel, and an advanced hot-to-cold runner system. This mold delivers glossy surface finish components that meet strict dimensional tolerances, ensuring consistent performance in motor bobbins.
Product Features & Technical Specifications
- Material: PA66 reinforced with 40% glass fiber (GF40) – excellent mechanical strength, heat resistance, and dimensional stability for automotive environments.
- Cavity Design: 1*4 cavity configuration – optimized for medium-volume production, balancing tool cost and output efficiency.
- Steel Grade: German GPM58 – high hardness, excellent wear resistance, and superior polishability for long mold life.
- Runner System: Hot to cold runner – reduces material waste, shortens cycle time, and eliminates cold slug issues for consistent part quality.
- Surface Finish: Glossy finish – enhances electrical insulation properties and aesthetic appearance of the bobbin.
- Custom Design: Fully customizable to client’s motor bobbin geometry, including complex core features and side actions.
- Certification: Manufactured under TS16969 quality management system (applicable to automotive parts).
| Parameter | Specification |
|---|---|
| Mold Base | Standard or custom (per client request) |
| Number of Cavities | 1 x 4 (4 cavities) |
| Steel Hardness (HRC) | 48–52 HRC (GPM58 heat treated) |
| Cycle Time Estimation | 20–35 seconds (dependent on part complexity) |
| Runner System | Hot manifold to cold runner (conversion type) |
| Surface Roughness | Ra ≤ 0.2 μm (glossy finish) |
| Expected Mold Life | 500,000 – 1,000,000 shots (with proper maintenance) |
Client Benefits
- Reduced Scrap: Hot-to-cold runner eliminates cold runner waste, saving material cost per cycle.
- Faster Cycle Times: Optimized cooling channel design and runner balance shorten cycle time by up to 15% compared to conventional cold runner molds.
- Consistent Part Quality: Glossy surface finish and precise cavity replication ensure uniform insulation properties required for motor bobbins.
- Long Tool Life: German GPM58 steel provides exceptional resistance to abrasive glass fibers, extending mold maintenance intervals.
- Custom Flexibility: We adapt the mold design to your specific bobbin dimensions, mounting features, and wire winding requirements.
- Global Logistic Support: Ship from Jiangsu, Shanghai, or Shenzhen ports to serve North America, South America, Europe, Southeast Asia, and more.
Trust & Reliability
With over 7 years of specialization in precision mold making, Changzhou Hongxinyutai Precision Mold Co., Ltd. has delivered 500+ injection molds to automotive and electrical industries worldwide. Our facility operates under the TS16969 quality management system, ensuring every mold undergoes rigorous dimensional inspection and sample testing before shipment. Our team of 51–100 employees includes experienced mold designers, CNC programmers, and EDM operators dedicated to delivering on-time, high-precision tools. We have successfully exported to North America, Europe, Southeast Asia, the Middle East, and domestic markets, earning repeat orders from tier-1 automotive suppliers.
Contact us today to discuss your custom PA66+GF40 auto motor bobbin mold requirements. We provide free technical consultation, mold flow analysis, and a detailed quotation within 2 working days. Let us help you bring your motor components to production with confidence.
Frequently Asked Questions (FAQ)
-
Q: What is the typical lead time for a custom bobbin mold?
A: Lead time is approximately 30–45 working days after design approval and deposit, depending on complexity and current workload. We will provide a confirmed schedule in the quotation. -
Q: Can you adjust the cavity number from 1x4 to other configurations?
A: Yes, the mold can be designed with 1x2, 1x8, or other cavity arrangements based on your volume requirements. Additional engineering and tooling modifications will be quoted accordingly. -
Q: What is the advantage of using German GPM58 steel over other tool steels?
A: GPM58 offers high hardness (48–52 HRC), excellent polishability for glossy surfaces, and superior wear resistance against glass-filled materials, resulting in longer mold life and reduced downtime for maintenance. -
Q: How does the hot-to-cold runner system work?
A: The mold uses a hot manifold to keep the material molten up to the cavity gate, then transitions to a cold runner segment that solidifies and is ejected as a small runner scrap. This system reduces overall runner weight compared to a full cold runner, saving material and cycle time. -
Q: Do you provide sample parts before mass production?
A: Yes, we will run a sample trial (T0) and send the first-shot samples to you for approval. We make necessary adjustments until the parts meet your specifications. -
Q: What shipping methods are available?
A: We ship via sea, air, or express (DHL, FedEx, etc.) from Jiangsu, Shanghai, or Shenzhen ports. For large molds, sea freight is most cost-effective; for urgent needs, air freight is available. -
Q: Is there a warranty for the mold?
A: We offer a 1-year warranty against manufacturing defects under normal operating conditions. Technical support and spare parts are available upon request beyond warranty. -
Q: Can you make molds for other engineering plastics besides PA66+GF40?
A: Absolutely. Our mold design can accommodate various thermoplastics such as PBT, PPS, LCP, and other glass or mineral-filled materials. The steel selection and cooling design will be optimized for the specific resin.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2017
Factory Size
1,000-3,000 square meters
Total Employees
51 - 100 People
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