Nanpi Haokai Hardware Products Co., Ltd., strategically located near Bohai Bay and Beijing-Tianjin region with convenient access to Beijing-Shanghai Expressway, has established itself as a leading professional manufacturer in metal stamping and CNC machining industries. With over two decades of continuous innovation and development, our company has achieved remarkable success in precision metal component manufacturing, serving both domestic and international markets with high-quality products and customized solutions.

Advanced Manufacturing Capabilities
Our company boasts state-of-the-art production facilities including over 30 stamping presses ranging from 30 to 250 tons, complemented by 30+ CNC machining centers, automatic lathes, and injection molding machines. This comprehensive equipment array enables us to handle projects of varying complexity and scale – from small batch prototyping to mass production runs. Our 70+ strong workforce includes 16 technical professionals and 7 senior technicians who ensure every product meets our stringent quality standards.
The integration of advanced manufacturing technologies with our skilled workforce allows us to maintain consistent product quality while offering competitive pricing. Our vertical production system covers everything from design and prototyping to mass production and after-sales service, ensuring complete control over the manufacturing process and timely delivery of orders.
Core Product Lines
As a specialized manufacturer, we focus on three primary product categories that serve diverse industrial applications:
1. Precision Stamping Components
Our stamping capabilities include complex spring clips, electrical contacts, and custom metal brackets. The metal shovel – our flagship stamping product – features one-piece construction through stretching and bending of whole metal sheets, eliminating welding joints for superior durability. With reinforced ribs, smooth curved surfaces, and standard mounting holes, this product reduces secondary processing requirements for customers while maintaining excellent performance in various equipment applications.

2. CNC Machined Components
Our CNC machining expertise shines through products like the brass connecting rods, which are precision-machined from solid brass blocks to achieve exact dimensions and smooth surfaces. These components demonstrate excellent electrical conductivity and corrosion resistance while offering material substitution options including phosphor copper, red copper, aluminum, and iron. The ability to customize dimensions, structures, and surface treatments makes these components ideal for connectors, automotive parts, and medical equipment.
3. Custom Injection Molded Parts
Complementing our metalworking capabilities, our injection molding division produces high-precision plastic components that meet exacting specifications. This synergy between metal and plastic manufacturing enables us to offer comprehensive solutions for complex assemblies requiring multiple material types.
Quality Assurance System
We maintain rigorous quality control throughout our production processes in accordance with ISO9001:2015 standards. From raw material inspection to final product testing, each step follows documented procedures to ensure consistent quality. Our quality management system covers:
- Incoming material verification
- In-process quality checks
- Final inspection protocols
- Traceability systems
- Continuous improvement processes
This comprehensive approach has earned us recognition from leading international companies across multiple industries, establishing long-term partnerships based on mutual trust and product excellence.
| Product Category | Material Options | Customization Capabilities |
|---|---|---|
| Stamping Components | Cold rolled steel, stainless steel, aluminum, copper | Dimensions, shapes, hole patterns, bending angles |
| CNC Machined Parts | Brass, phosphor copper, aluminum, stainless steel | Tolerances ±0.01mm, surface finishes, threading |
| Injection Molded Parts | PA, POM, PC, ABS, PBT | Color matching, texture options, insert molding |
Industry Applications
Our components serve critical functions across multiple industries:

Automotive Industry
We supply precision components for electrical connectors, battery terminals, and sensor housings that meet automotive industry requirements for durability and reliability under harsh operating conditions. Our products withstand vibration, temperature extremes, and chemical exposure while maintaining consistent performance.
Electronics Sector
Our metal stamping and CNC machining capabilities produce high-precision contacts, shielding components, and structural parts for consumer electronics, industrial equipment, and telecommunications devices. The ability to create complex geometries with tight tolerances ensures optimal electrical performance and mechanical stability.
Medical Equipment
For medical applications, we manufacture components that meet stringent biocompatibility and cleanliness requirements. Our CNC machined parts feature smooth surfaces free of burrs or sharp edges, while our stamping processes can create intricate shapes needed for surgical instruments and diagnostic equipment.
FAQ
What materials can you use for custom stamping components?
We offer extensive material options including cold rolled steel, stainless steel (304/316), aluminum alloys (5052/6061), and copper alloys. Our material selection considers factors like strength requirements, corrosion resistance, and electrical conductivity to match your specific application needs.
How do you ensure dimensional accuracy in CNC machined parts?
Our CNC machining centers are equipped with high-precision measurement systems and undergo regular calibration. We implement statistical process control (SPC) methods and perform first-article inspection for each production run to maintain consistent tolerances of ±0.01mm or better depending on the component specifications.
Can you provide samples before mass production?
Yes, we offer prototype and sample production services to validate designs before full-scale manufacturing. Our engineering team works closely with customers during this phase to optimize component geometry, material selection, and manufacturing processes to ensure the final product meets all requirements.
What surface treatments are available for your components?
We provide various surface finishing options including electroplating (zinc, nickel, tin, silver, gold), passivation, anodizing, powder coating, and brush finishing. These treatments enhance corrosion resistance, improve appearance, and can modify electrical properties as needed for specific applications.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a trusted partner for global businesses seeking high-quality custom metal components. Our comprehensive manufacturing capabilities, strict quality control system, and customer-focused approach enable us to deliver precision stamping parts and CNC machined components that meet the most demanding specifications. With over 20 years of industry experience, we continue to innovate and expand our capabilities to serve emerging markets and advanced applications across multiple industries.