Nanpi Haokai Hardware Products Co., Ltd., strategically located near Bohai Bay and just one kilometer from the Beijing-Shanghai Expressway, has established itself as a leading manufacturer in the metal stamping and CNC machining industry. With over two decades of continuous innovation and development, our company has achieved remarkable success in hardware manufacturing, serving clients across new energy, automotive, electrical appliances, medical equipment, instrumentation, and machinery manufacturing sectors worldwide.

Our Core Competencies in Metal Stamping and CNC Machining
As a professional private enterprise specializing in metal product design, R&D, production, sales, and after-sales services, we have built our reputation on three pillars: advanced production equipment, strong technical capabilities, and comprehensive quality management. Our 70+ employees include 16 technical professionals and 7 senior technicians, operating over 30 sets of 30-250 ton stamping equipment and 30+ CNC machining centers including automatic lathes and injection molding machines.
Our production facilities enable complete in-house capabilities from design to after-sales service, ensuring full control over quality and delivery timelines. The implementation of ISO 9001:2015 quality management system throughout our operations guarantees consistent product quality that meets international standards. This comprehensive approach has earned us recognition and long-term partnerships with major domestic and international enterprises.
Custom Stamping Copper Bushings: Precision Engineering for Demanding Applications
Our stamping copper bushings represent the pinnacle of our metal stamping capabilities. Manufactured through integrated stretching and bending of whole metal plates, these bushings feature seamless construction without any welding joints, ensuring exceptional durability and resistance to bending or cracking. The integrated design includes reinforced ribs and smooth, rounded shovel surfaces with standard mounting holes, enabling smooth material handling and easy assembly without secondary processing.
Key advantages of our stamping copper bushings include:
- Material customization: Cold-rolled iron, stainless steel, aluminum alloy, copper, and other materials available
- Dimension flexibility: Customizable according to specific application requirements
- Cost efficiency: Reduces clients’ production and assembly costs through ready-to-use design
- Application versatility: Suitable for various industrial equipment and tooling applications

Technical Specifications of Our Stamping Copper Bushings
To help clients better understand our capabilities, here are typical specifications for our stamping copper bushings:
| Parameter | Specification |
|---|---|
| Material Options | Cold-rolled iron, stainless steel, aluminum alloy, copper, brass |
| Thickness Range | 0.5mm-10mm (customizable) |
| Dimensional Tolerance | ±0.05mm (high precision grade) |
| Surface Treatment | Zinc plating, nickel plating, chrome plating, anodizing, passivation |
| Production Capacity | 10,000-50,000 pcs/month (varies by size) |
Comprehensive CNC Machining Capabilities
Beyond stamping, our CNC machining division excels at producing high-precision copper components like connecting rods and bushings. Using优质 brass materials, our CNC machined parts feature precise dimensions, smooth surfaces without burrs, and excellent electrical and thermal conductivity. The oxidation-resistant properties ensure long service life even in demanding environments.
Our CNC machining services offer complete customization:
- Material selection: Brass, phosphor copper, red copper, aluminum, iron, and more
- Dimensional customization: Any size, structure, or shape according to drawings or samples
- Surface finishing: Tin plating, zinc plating, polishing, and other treatments
- Application-specific solutions: Connectors, automotive parts, new energy equipment, medical instruments, electrical terminals

Non-Standard Metal Parts: Tailored Solutions for Unique Requirements
Our non-standard metal parts division specializes in solving clients’ most challenging component requirements. From precision knurled zinc-plated sleeves to customized copper shells for connectors, we transform complex specifications into reliable, high-performance components.
The production process for non-standard parts involves:
- Detailed analysis of client requirements and application environment
- Material selection based on mechanical properties and environmental factors
- Precision machining using advanced CNC equipment
- Comprehensive quality inspection at each production stage
- Custom packaging and labeling for efficient supply chain integration
FAQ
What materials are available for custom stamping copper bushings?
We offer a wide range of materials including cold-rolled iron, stainless steel, aluminum alloy, copper, and brass. Our technical team can recommend the most suitable material based on your specific application requirements regarding strength, corrosion resistance, and cost considerations.
How do you ensure dimensional accuracy in CNC machined components?
Our CNC machining centers are equipped with high-precision measurement tools and quality control systems. We implement strict process controls and conduct multiple inspections during production, including initial sample inspection, in-process inspection, and final inspection before shipment, to maintain dimensional tolerances within ±0.05mm for critical dimensions.
Can you produce parts based on our existing samples?
Absolutely. We specialize in reverse engineering and custom production based on client samples. Our engineering team will analyze the sample, create detailed drawings, and develop an optimized production process to ensure the reproduced parts match or exceed the original in quality and performance.
What is your minimum order quantity for custom parts?
We accommodate both small trial orders and large-volume production. Our minimum order quantity starts from 100 pieces for simple parts, with flexibility to adjust based on part complexity and production requirements. We also offer prototype services with no minimum quantity for initial design verification.
How do you handle quality control for exported products?
All our products undergo comprehensive quality inspection according to ISO 9001:2015 standards before shipment. This includes dimensional inspection, material verification, surface finish examination, and functional testing where applicable. We provide detailed inspection reports and quality certificates with each shipment to ensure full traceability.
Summary
Nanpi Haokai Hardware stands as your trusted partner for custom stamping copper bushings, CNC machined components, and non-standard metal parts. With over 20 years of manufacturing expertise, advanced equipment, and a dedicated technical team, we deliver solutions that meet the most demanding specifications across diverse industries. Our commitment to quality, flexibility in customization, and competitive pricing makes us the preferred choice for global clients seeking reliable metal component suppliers. Contact us today to discuss your project requirements and discover how we can help you achieve your production goals with precision and efficiency.