In the competitive landscape of industrial metal fabrication, finding a reliable partner that combines technical expertise with manufacturing excellence is crucial for business success. Nanpi Haokai Hardware Products Co., Ltd., strategically located near Beijing-Shanghai Expressway with convenient access to Tianjin Port, has established itself as a leading manufacturer of custom brass electrodes and precision metal components over the past two decades. Our commitment to technological innovation and quality excellence has enabled us to serve Fortune 500 companies across multiple industries while maintaining our position as a trusted supplier in the global market.

Comprehensive Manufacturing Capabilities
Our state-of-the-art production facility spans over 5,000 square meters and houses more than 60 advanced machines including 30-250 ton stamping presses, CNC lathes, automatic walking machines, and injection molding equipment. This comprehensive setup allows us to handle projects ranging from simple metal stamping to complex CNC machining with equal precision. Our 70-strong workforce includes 16 technical professionals and 7 senior technicians who bring decades of combined experience to every project we undertake.
The manufacturing process at Nanpi Haokai follows strict ISO 9001:2015 quality management standards at every stage. From initial design and prototyping to final production and quality inspection, we implement rigorous quality control measures to ensure all components meet international standards. Our vertical integration capability enables us to control every aspect of production, resulting in consistent quality and shorter lead times compared to traditional manufacturing models.
Core Product Specializations
As a specialized brass electrode manufacturer, we offer three primary product categories that form the foundation of our business:
1. Precision Brass Connectors
Our CNC-machined brass connectors represent the pinnacle of precision engineering. Manufactured from high-quality brass with excellent conductivity and corrosion resistance, these components feature:
- One-piece molded construction with precise dimensions
- Smooth surface finish free from burrs or defects
- Customizable material options including phosphor bronze, copper, aluminum, and iron
- Optional surface treatments like tin plating, zinc plating, and polishing
- Application in connectors, automotive parts, and medical equipment
The manufacturing process for these connectors involves advanced CNC turning and milling operations that achieve tolerances within ±0.01mm. Our quality inspection uses coordinate measuring machines (CMM) to verify dimensional accuracy before shipping.

2. Custom Metal Stamping Solutions
Our metal stamping capabilities cover a wide range of applications with particular expertise in producing durable, cost-effective components. The metal shovel series exemplifies our stamping excellence:
- One-piece stretch bending forming without welding
- Reinforced structure with smooth curved surface
- Standard mounting holes for easy assembly
- Material options including cold-rolled steel, stainless steel, aluminum alloy, and copper
- Reduced secondary processing requirements for customers
The stamping process utilizes progressive dies that maintain consistent quality across high-volume production runs. Our 30-250 ton presses can handle materials up to 12mm thick with speeds reaching 300 strokes per minute, ensuring both quality and efficiency.
3. Specialized Metal Bushings
Our precision knurled zinc-plated bushings demonstrate our ability to create custom non-standard components that solve specific engineering challenges:
- Numerically controlled turning for smooth inner walls
- Middle knurling design increases assembly friction
- Zinc plating for corrosion resistance and extended service life
- Customizable dimensions including diameter, length, and wall thickness
- Application in fasteners, wire harness connectors, and instrument bushings
The production of these bushings combines precision turning with specialized knurling operations that create the ideal surface texture for secure assembly. Our quality control includes salt spray testing to verify the effectiveness of the zinc plating under harsh environmental conditions.
Customization Capabilities
What truly sets Nanpi Haokai apart as a brass electrode manufacturer is our comprehensive customization capability. We understand that industrial applications often require components with specific characteristics that standard products cannot provide. Our engineering team works closely with clients to develop tailored solutions that meet exact requirements:
| Customization Aspect | Available Options |
|---|---|
| Material Selection | Brass, copper, stainless steel, aluminum, phosphor bronze, and more |
| Dimensional Tolerance | ±0.01mm to ±0.1mm depending on component requirements |
| Surface Finish | Polishing, brushing, anodizing, plating (zinc, nickel, tin, etc.), passivation |
| Production Volume | Prototype samples to high-volume production (1,000+ pieces) |
| Design Support | DFM analysis, 3D modeling, prototype development, and production optimization |
Our customization process begins with a thorough understanding of your application requirements. We analyze factors such as operating environment, load conditions, assembly requirements, and cost constraints to recommend the most suitable materials and manufacturing processes. For complex projects, we create detailed prototypes that allow for functional testing and design validation before full-scale production.

Quality Assurance System
As an ISO 9001:2015 certified manufacturer, we maintain a comprehensive quality management system that covers every aspect of our operations. Our quality assurance measures include:
- Incoming material inspection with spectral analysis
- In-process quality control at each manufacturing stage
- Final inspection using advanced measuring equipment
- Batch testing for critical performance parameters
- Traceability system for all production lots
- Continuous improvement programs based on customer feedback
We understand that quality is not just about meeting specifications but also about ensuring consistent performance in real-world applications. That’s why we conduct rigorous testing that simulates actual operating conditions whenever possible. For example, our connector products undergo insertion/withdrawal cycle testing to verify long-term reliability, while our bushings are tested for wear resistance under simulated load conditions.
Industry Applications
The versatility of our manufacturing capabilities allows us to serve a wide range of industries with specialized component solutions:
- Automotive: Custom connectors, sensor housings, and precision bushings
- Electronics: EMI shielding components, terminal blocks, and heat sinks
- Medical: Corrosion-resistant instrument parts and sterile-processable components
- Energy: Renewable energy system connectors and battery housing components
- Telecommunications: RF connector parts and antenna components
- Industrial Equipment: Custom shovels, brackets, and mechanical components
In each industry, we work closely with clients to understand their specific requirements and regulatory standards. For medical applications, we implement additional cleanliness controls and material traceability. For automotive components, we ensure compliance with industry-specific standards like IATF 16949 when required. Our ability to adapt to different industry requirements while maintaining consistent quality has been key to our long-term success.
FAQ
What materials do you typically use for brass electrode components?
Our standard material options include C26000 cartridge brass, C36000 free-cutting brass, and C46400 naval brass for components requiring high corrosion resistance. For specialized applications, we also work with phosphor bronze, beryllium copper, and various stainless steel alloys. Our material selection considers factors like conductivity, strength, corrosion resistance, and machinability to match your specific requirements.
How do you ensure dimensional accuracy in CNC machined parts?
We maintain dimensional accuracy through several measures: 1) Using high-precision CNC machines with sub-micron positioning accuracy, 2) Implementing rigorous tool calibration and maintenance programs, 3) Conducting in-process inspections with digital calipers and micrometers, and 4) Performing final inspection using coordinate measuring machines (CMM). All critical dimensions are verified against 3D CAD models before shipping.
What is your minimum order quantity for custom components?
Unlike many manufacturers, we don’t have strict minimum order quantity requirements. We can produce prototype quantities as low as 10-50 pieces for initial testing and validation, with the ability to scale up to thousands or tens of thousands of pieces for full production. Our flexible approach helps clients manage project risks and inventory costs effectively.
How do you handle design changes during production?
We understand that design modifications may be necessary during development. Our engineering team works closely with clients to evaluate the impact of changes on both the component design and manufacturing process. For minor modifications, we can often implement changes without significant delay. For major changes, we provide updated cost estimates and lead times to help clients make informed decisions.
What certifications do your products comply with?
All our manufacturing processes comply with ISO 9001:2015 quality management standards. Specific products can be manufactured to meet additional certifications as required, including RoHS compliance for environmental safety, REACH compliance for chemical substances, and industry-specific standards like IATF 16949 for automotive components. We maintain complete material traceability and can provide certification documents upon request.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a premier brass electrode manufacturer and custom metal component supplier with two decades of proven expertise. Our strategic location near major transportation hubs, combined with our advanced manufacturing capabilities and ISO-certified quality systems, positions us as an ideal partner for companies seeking reliable, high-quality metal components. Whether you require standard products or fully customized solutions, our team of engineers and technicians is dedicated to delivering components that meet your exact specifications while optimizing for cost and manufacturability. With a commitment to continuous improvement and customer satisfaction, we look forward to supporting your next project with precision-engineered metal components that drive your success.