In today’s competitive manufacturing landscape, finding a reliable partner for precision CNC turning parts is crucial for businesses across various industries. Nanpi Haokai Hardware Products Co., Ltd., located in Hebei Province near Beijing and Tianjin, has established itself as a leading CNC turning parts manufacturer in China over the past two decades. With a strategic location adjacent to the Beijing-Shanghai Expressway and a strong focus on technological innovation, our company delivers high-quality custom CNC machined components to clients worldwide.

Our CNC Turning Capabilities
As a professional CNC turning parts manufacturer, we maintain a comprehensive production facility equipped with advanced machinery and skilled technicians. Our factory houses over 30 sets of CNC turning equipment ranging from 30 to 250 tons, along with numerical control lathes, automatic lathes, and CNC sliding head machines. This extensive equipment park enables us to handle projects of varying complexity and production volumes efficiently.
Our technical team comprises 16 professional engineers and 7 senior technicians who bring years of experience to every project. This expertise allows us to offer complete solutions from product design optimization to mass production. We specialize in manufacturing three main product categories: precision stamping parts, CNC machined components, and injection molded parts, all produced under our integrated quality management system.
The CNC turning process at Nanpi Haokai Hardware follows strict ISO 9001:2015 quality standards. From material selection to final inspection, every step receives meticulous attention to ensure our components meet the highest precision requirements. Our ability to work with various materials including brass, stainless steel, aluminum, and copper makes us a versatile supplier for diverse industrial applications.

Core CNC Turned Products
Our product portfolio features several specialized CNC turned components that demonstrate our manufacturing capabilities and attention to detail:
1. Brass Connecting Rods
These one-piece CNC machined components feature precise dimensions and smooth surfaces without burrs. Made from high-quality brass, they offer excellent electrical and thermal conductivity while resisting oxidation and corrosion. The rods support various material substitutions and custom surface treatments like tin plating, zinc plating, and polishing. Primary applications include electrical connectors, automotive parts, new energy equipment, medical instruments, and electrical terminals.
2. Precision Knurled Zinc-Plated Sleeves
Manufactured through CNC turning, these metal bushings feature smooth tube walls and precise dimensions. The middle knurling design significantly increases assembly friction to prevent slippage during equipment operation. After zinc plating for rust prevention, these components demonstrate excellent corrosion resistance and long service life. We can customize tube diameters, lengths, and wall thicknesses for applications in fasteners, wire harness connectors, instrument bushings, furniture hardware, and mechanical positioning.
3. Brass Stretched Copper Shells
These precision stamped and stretched products feature seamless one-piece construction with compact structure and precise positioning. The smooth insertion and extraction performance comes from our optimized manufacturing process. Made from premium copper materials, they provide stable conductivity and excellent corrosion resistance. Customization options include multiple material substitutions, dimensional adjustments, and premium surface treatments like gold, silver, or nickel plating for specialized connection applications.
| Product Feature | Technical Specification |
|---|---|
| Material Options | Brass, Stainless Steel, Aluminum, Copper, etc. |
| Dimensional Tolerance | ±0.01mm to ±0.05mm (depending on component) |
| Surface Finish | Polishing, Plating, Anodizing, Passivation, etc. |
| Production Capacity | 10,000-500,000 pcs/month (customizable) |
Quality Assurance and Certification
At Nanpi Haokai Hardware, quality forms the foundation of everything we do. Our implementation of ISO 9001:2015 quality management system ensures consistent product quality across all production stages. From incoming material inspection to final product testing, we employ rigorous quality control measures to meet international standards and customer specifications.
Our quality assurance process includes:
- Material certification verification
- In-process dimensional inspections
- Surface finish verification
- Functional testing for critical components
- Final inspection before packaging
This comprehensive approach has earned us recognition from major international companies across various industries. Our commitment to quality extends beyond manufacturing – we provide complete documentation and traceability for every component we produce.

Custom CNC Turning Solutions
Understanding that each customer has unique requirements, we specialize in providing tailored CNC turning solutions. Our services cover the complete product lifecycle:
1. Design Consultation
Our engineering team collaborates with clients to optimize designs for manufacturability while maintaining functionality. This early involvement helps reduce production costs and improve component performance.
2. Prototyping and Sampling
We offer rapid prototyping services to validate designs before full-scale production. Our flexible manufacturing capabilities allow for quick turnaround on sample orders, even for complex components.
3. Mass Production
With our extensive equipment park and skilled workforce, we efficiently handle production volumes ranging from small batches to large-scale orders while maintaining consistent quality.
4. After-Sales Support
Our commitment doesn’t end with delivery. We provide comprehensive after-sales support including product performance tracking, quality issue resolution, and technical consultation for future projects.
Industry Applications
Our precision CNC turned components serve diverse industries worldwide:
- Automotive: Connectors, sensors, and precision mechanical parts
- Medical: Instrument components requiring precise dimensions and corrosion resistance
- Electrical: High-conductivity connectors and terminals
- New Energy: Components for solar, wind, and battery storage systems
- Industrial Equipment: Mechanical positioning parts and fasteners
FAQ
What is your minimum order quantity for custom CNC turning parts?
We accommodate both small and large orders. Our minimum order quantity starts at 100 pieces for simple components, though we can produce single prototypes for design validation. For complex parts, we recommend starting with at least 50-100 pieces to ensure cost-effectiveness in production setup.
How do you ensure dimensional accuracy in CNC turning?
Dimensional control begins with precise programming of our CNC machines using advanced CAM software. During production, we perform in-process inspections using high-precision measuring instruments. All critical dimensions are verified against customer specifications before final approval. Our equipment is regularly calibrated to maintain measurement accuracy.
What materials can you work with for CNC turning?
We have extensive experience working with various metals including brass, stainless steel (304, 316, etc.), aluminum alloys (6061, 7075), copper, and carbon steel. We can also process certain engineering plastics when required. Our material experts can recommend the most suitable material based on your application requirements for conductivity, strength, corrosion resistance, and cost.
How long does it take to produce CNC turned parts?
Production lead times depend on component complexity and order quantity. For simple parts, we can complete production within 7-10 days after sample approval. More complex components may require 15-20 days. We maintain clear communication about timelines throughout the production process and work to accommodate urgent requests when possible.
Do you provide surface treatment services for CNC turned parts?
Yes, we offer various surface treatment options to enhance component performance and appearance. Common treatments include polishing, passivation, anodizing, and different types of plating (zinc, nickel, chrome, tin, etc.). We work with certified surface treatment partners to ensure consistent quality that meets international standards.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a premier CNC turning parts manufacturer in China, combining two decades of industry experience with advanced manufacturing capabilities. Our ISO 9001:2015 certified facility produces high-precision CNC turned components for global clients across automotive, medical, electrical, and industrial sectors.
With a comprehensive range of CNC turning equipment and a skilled technical team, we deliver customized solutions from design to mass production. Our commitment to quality, flexibility in order quantities, and ability to work with diverse materials make us the ideal partner for your precision component needs.
Contact us today to discuss your CNC turning requirements and discover how we can support your manufacturing objectives with reliable, high-quality components delivered on schedule.