Nanpi Haokai Hardware Products Co., Ltd., strategically located near Bohai Bay and adjacent to the Beijing-Shanghai Expressway, has established itself as a leading precision stamping parts manufacturer in China. With over two decades of experience in the metal stamping industry, our company combines advanced production equipment, technical expertise, and ISO 9001:2015 quality management to deliver customized hardware solutions that meet the most demanding industrial requirements.
Comprehensive Manufacturing Capabilities
Our production facility spans over 5,000 square meters and houses more than 60 advanced machines, including 30-250 ton stamping presses, CNC lathes, automatic turning machines, and injection molding equipment. This comprehensive setup enables us to handle projects ranging from simple stamping spring pieces to complex multi-process components with precision and efficiency.
The company’s technical team comprises 16 engineers and 7 senior technicians who bring combined expertise of over 100 years in metal processing. This technical strength allows us to offer complete solutions from product design optimization to mass production, ensuring each component meets stringent quality standards while maintaining cost-effectiveness.
Core Product Lines
Our product portfolio focuses on three main categories that serve diverse industrial applications:
1. Precision Stamping Components
Specializing in stamping spring pieces and custom metal stamping, our precision stamping division produces components with tolerances as tight as ±0.02mm. The metal shovel – our flagship stamped product – demonstrates our manufacturing excellence through its one-piece construction, reinforced structure, and smooth finish that requires no secondary processing. This design reduces customers’ assembly costs by 30-40% compared to traditional multi-piece assemblies.
Other popular stamped products include:
- Brass connection rods with ±0.01mm dimensional accuracy
- Precision knurled zinc-plated sleeves with enhanced friction surfaces
- Brass drawn shells for connector applications with seamless construction
- Standard spring clips available in 50+ stock sizes with custom options
2. CNC Machined Parts
Our CNC machining capabilities produce components with exceptional precision and surface quality. The brass connection rod exemplifies this expertise with its one-piece construction, smooth finish (Ra≤0.8μm), and precise dimensions maintained throughout production runs. We maintain strict material control, using only certified brass with conductivity ≥98% IACS and corrosion resistance meeting ASTM B187 standards.
Key CNC machining advantages:
- Multi-axis machining for complex geometries
- In-process inspection with CMM measurement
- Surface treatment options including plating, polishing, and anodizing
- Batch sizes from 100 to 100,000 pieces with consistent quality
3. Custom Hardware Solutions
Understanding that each application has unique requirements, we offer complete customization services across all product lines. This includes material selection from 20+ options (steel, stainless steel, brass, aluminum, etc.), dimensional adjustments to ±0.01mm precision, and specialized surface treatments like:
| Surface Treatment | Application Benefits | Industry Standards |
|---|---|---|
| Zinc Plating | Corrosion resistance (500+ hours salt spray) | ASTM B117 |
| Nickel Plating | Wear resistance, solderability | MIL-STD-171 |
| Passivation | Stainless steel corrosion protection | ASTM A967 |
Quality Assurance System
Our ISO 9001:2015 certified quality management system ensures every component meets specifications through:
1. Raw Material Control: Only certified materials from approved suppliers are used, with batch traceability maintained throughout production.
2. In-Process Inspection: Statistical process control (SPC) monitors critical dimensions during stamping and machining operations.
3. Final Inspection: 100% dimensional verification using calibrated measuring equipment before packaging.
4. Continuous Improvement: Monthly quality audits identify opportunities for process optimization and defect prevention.
Industry Applications
Our components serve diverse industries with specialized solutions:
Automotive Industry
Producing over 2 million connector components annually for electric vehicle charging systems, our brass connection rods and precision sleeves meet automotive-grade requirements for conductivity, durability, and temperature resistance (-40°C to +150°C).
New Energy Sector
Custom battery terminal housings and connection components support renewable energy applications with corrosion-resistant materials and precision-engineered interfaces that ensure reliable electrical contact under vibration conditions.
Medical Devices
Stainless steel components for surgical instruments and diagnostic equipment benefit from our cleanroom manufacturing capabilities and validation processes that comply with ISO 13485 medical device standards.
FAQ
What is your minimum order quantity for custom stamping parts?
Our minimum order quantity starts at 500 pieces for custom stamping projects, though we accept smaller batches for prototype development and initial sampling. For standard products like spring clips, we maintain inventory for immediate shipment of quantities up to 10,000 pieces.
How do you ensure dimensional consistency in mass production?
We implement several quality control measures: 1) Tooling validation before production using CMM measurement 2) In-process inspection every 2 hours 3) Statistical process control charts monitoring key dimensions 4) Final inspection of 100% of parts before packaging. This system maintains Cpk values above 1.33 for all critical dimensions.
What lead time should I expect for custom orders?
Typical lead times are: 1) Sample production: 7-15 days after design approval 2) Tooling fabrication: 10-20 days for new stamping dies 3) Mass production: 15-30 days depending on order volume and complexity. We maintain dedicated production lines for urgent orders to expedite delivery when needed.
Can you provide material certification for exported components?
Yes, we provide complete material documentation including mill test certificates, chemical composition analysis, and mechanical property reports for all exported orders. For automotive and medical applications, we can also provide PPAP Level 3 documentation and process capability studies upon request.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a comprehensive solution provider for precision stamping parts and CNC machined components. With two decades of manufacturing expertise, ISO 9001 certification, and a technical team dedicated to continuous improvement, we deliver customized hardware solutions that reduce our customers’ total cost of ownership while improving product reliability. Our vertically integrated production capabilities, from design assistance to final packaging, ensure seamless project execution for clients across automotive,新能源, medical, and industrial sectors. Contact us today to discuss how our precision manufacturing capabilities can support your next hardware project.