Custom Automotive Parts Manufacturing Services
At Keywin, we specialize in custom automotive parts production, using high-precision CNC machining, forging, and casting processes to deliver durable, high-performance components. Whether you’re developing next-gen vehicle systems or replacing legacy parts, our expertise in manufacturing automotive components with aluminum and steel ensures reliable, cost-effective solutions tailored to your needs.
Our Automotive Parts Machining: Precision Built for Industry Standards
Automotive part fabrication presents demanding challenges—from tight safety tolerances and high-strength alloys to maintaining dimensional consistency at scale. We understand these requirements deeply, and respond with precision machining strategies tailored to meet them.
Our Manufacturing Commitment in Automotive Parts Mnuafacturing Services:
- Equipped with 30+ 5-axis CNC machines and CMM inspection systems, achieving ±0.005mm tolerance.
- End-to-end traceability & CMM-backed inspection
- Served 20+ auto parts manufacturers, supporting small-batch trials to mass production.

Typical Applications for Automotive Parts Manufacturing Services





- Typical Parts:Single Valve Body, Throttle Body, Valve Body, Regulator, Throttle Hose Adapter
- Manufacturing Focus:
High-precision machining with ±0.005mm tolerance control, ensuring fluid channel integrity and surface finish (Ra ≤ 0.4μm) to meet the demanding thermal and pressure conditions of powertrain systems.



- Typical Parts:Billet Ram Tube With Base, Stamped tube base, Bearing Installation Hub
- Manufacturing Focus:
Tight-tolerance machining for load-bearing alignment and press-fit accuracy, with reinforced surface treatments to ensure durability under dynamic stress.



- Typical Parts:body, chassis crossbeams, seat rails
- Manufacturing Focus:weld/bond precision, material strength consistency, and dimensional accuracy of load-bearing components
Why Choose Us to Manufacture Automotive Parts
Efficient & Precise Manufacturing
Advanced technology for superior results
- Advanced Equipment
- High-Precision Production
- Quality Materials
Strict Quality Control
Ensuring reliability at every step
- Material Testing
- Dimensional Inspection
- Performance Testing
Extensive Industry
Experience
Expertise to meet your specific needs
- Custom Solutions
- Technical Innovation
- In-Depth Knowledge
Customization & Flexible Delivery
Tailored solutions with on-time delivery
- Quick Response
- Reliable Delivery
- Tailored Solutions
Have drawings or specs ready?
Gallery of Automotive Parts
Explore our high-quality photo gallery to see the results of our advanced manufacturing capabilities and precision machining for the automotive industry.
Manufacturing Materials and Surface Treatments
We specialize in sourcing high-quality materials and advanced surface treatments for the manufacturing of automotive parts, ensuring durability, performance, and a premium finish for every product.

Materials for Automotive Parts Manufacturing
Select from a broad range of materials.
- Aluminum Alloys: 6061-T6, 6063, 6082, 7075, 5052
- Stainless Steel: 304, 316L, 409, 430
- Carbon & Alloy Steel: 1018, 1045, 4140, 4130
- Titanium Alloys: Ti-6Al-4V (Grade 5), Grade 2
- Thermoplastics: Polyethylene (PE), Polypropylene(PP), Polycarbonate (PC), ABS

Surface Processes for Automotive Parts Manufacturing
Select from these finishes to protect parts
Powder Coating: Matte | Gloss | Textured
Anodizing: Type II | Type III | Hardcoat
Electroplating: Chrome | Nickel | Zinc
PVD Coating: Titanium Nitride (TiN) | Chromium Nitride (CrN) | Zirconium Nitride (ZrN)
Advanced Manufacturing Services for Automotive Parts
We offer a custom automotive parts production service, with advanced technology and expertise we can quickly bring your designs to life, turning concepts into high quality parts in just a few days.
Precision CNC Machining Services
Our CNC automotive machining turns your designs into precision-engineered components, ensuring accuracy and efficiency for the automotive parts .

Robust Forging
Services
We enhance metal strength and toughness through forging, ideal for producing durable, high-performance automotive parts

Durable Metal Casting Solutions
Our casting services create metal parts with strength and durability through a variety of methods, perfect for custom automotive components manufacturing services.

Superior Quality
Sheet Metal Fabrication
We offer reliable, precise sheet metal fabrication for mass production of parts with high consistency, perfect for automotive components manufacturing services.

Advanced Manufacturing Services for Automotive Parts
We offer a custom automotive parts production service, with advanced technology and expertise we can quickly bring your designs to life, turning concepts into high quality parts in just a few days.

Precision CNC Machining Services
Our CNC automotive machining turns your designs into precision-engineered components, ensuring accuracy and efficiency for the automotive parts manufacturing process.

Robust Forging Services
We enhance metal component strength and toughness through controlled deformation processes.

Durable Metal
Casting Solutions
Our casting services create metal parts with strength and durability through a variety of methods, perfect for automotive component manufacturing.

Superior Quality
Sheet Metal Fabrication
We offer reliable, precise sheet metal fabrication for mass production of parts with high consistency, perfect for custom automotive components manufacturing services.
FAQs
Have questions about our precision parts machining for the automotive industry? Here are some common inquiries. Contact us for more details.
We manufacture a wide range of components such as engine parts, chassis components, transmission systems, and electrical parts. Our solutions cater to both OEM (Original Equipment Manufacturer) and aftermarket parts, with custom automotive parts production services available.
We can manufacture automotive components up to 600mmx400mmx120mm, depending on the part and materials involved, all with precision machining for the automotive industry.
We adhere to strict quality standards in automotive parts manufacturing, conducting thorough inspections, including dimensional checks, material testing, and functional testing to meet industry regulations. Additionally, we are certified to ISO 9001 for quality assurance.
If the material you need is not listed, please reach out to us. We work with a wide range of suppliers and can source specific materials based on your requirements.