In today’s competitive industrial landscape, finding a reliable partner for custom metal parts manufacturing is crucial for businesses seeking high-quality components that meet exact specifications. Nanpi Haokai Hardware Products Co., Ltd., located near Beijing-Shanghai Expressway with convenient transportation access, has established itself as a leading precision metal parts manufacturer in China over the past two decades. Specializing in custom metal stamping, CNC machining, and injection molding services, the company serves global clients across multiple industries with its advanced production capabilities and strict quality control systems.
Comprehensive Manufacturing Capabilities
The company’s production facilities span over 5,000 square meters, housing more than 60 advanced machines including 30-250 ton stamping presses, CNC lathes, automatic turning machines, and injection molding equipment. This extensive machinery park enables the production of three main product categories: precision stamping parts, CNC machined components, and injection molded parts, with monthly capacities reaching 5 million stamping pieces, 200,000 CNC parts, and 300,000 injection molded components respectively.
A dedicated team of 70 professionals, including 16 technical engineers and 7 senior technicians, ensures smooth operation across the entire production chain from design to after-sales service. The company’s vertical integration capability allows for complete control over material sourcing, component manufacturing, quality inspection, and logistics management, providing customers with a one-stop solution for their metal component needs.
Quality Assurance and Certification
Nanpi Haokai Hardware Products Co., Ltd. maintains rigorous quality standards through its ISO 9001:2015 certified management system. The quality control process begins with careful material selection, followed by in-process inspections using advanced measuring equipment including projectors, calipers, and salt spray testers. Final products undergo comprehensive testing to ensure they meet customer specifications before shipment.
The company’s commitment to quality has earned it long-term partnerships with major international corporations across various industries. By implementing statistical process control (SPC) and continuous improvement programs, the manufacturer consistently enhances production efficiency while maintaining product consistency and reliability.
Core Product Lines and Customization Capabilities
The company’s product portfolio focuses on three main categories, each offering extensive customization options to meet diverse industrial requirements:
1. Precision Stamping Parts
Specializing in small to medium-sized metal stamping components, the manufacturer produces parts with thickness ranging from 0.1mm to 6mm using materials including cold rolled steel, stainless steel, aluminum alloy, and copper. Typical applications include:
- Automotive components (connectors, brackets, clips)
- Electrical hardware (terminal blocks, shielding cases)
- Medical device parts (housing components, fixtures)
- Industrial equipment components (fasteners, mounting plates)
The production process incorporates progressive die stamping technology for high-volume orders and transfer die stamping for complex components requiring multiple operations. Secondary services include deburring, tapping, riveting, and assembly to provide finished products ready for integration into customer systems.
2. CNC Machined Components
With precision CNC turning and milling capabilities, the company produces complex metal parts with tolerances as tight as ±0.01mm. Available materials include brass, aluminum, stainless steel, and various engineering plastics. Key product examples include:
- Connectors and terminals for electrical systems
- Precision shafts and bushings for mechanical applications
- Custom fittings for fluid handling systems
- Medical instrument components requiring sterile finishes
The CNC department utilizes advanced CAM software for program optimization and employs in-process inspection to maintain dimensional accuracy throughout production. Surface treatment options include polishing, anodizing, plating, and passivation to enhance corrosion resistance and aesthetic appeal.
3. Injection Molded Parts
The injection molding division specializes in producing high-precision plastic components weighing from 1g to 1.5kg using engineering-grade thermoplastics such as PA, POM, PC, ABS, and PPS. Typical applications include:
- Electrical enclosure components
- Automotive interior parts
- Medical device housings
- Industrial equipment covers
With mold making capabilities in-house, the company offers rapid prototyping and short production runs for new product development, as well as high-volume manufacturing for established products. Secondary operations include ultrasonic welding, pad printing, and assembly services to provide complete sub-assemblies.
Industry-Specific Solutions
Nanpi Haokai Hardware Products Co., Ltd. serves customers across multiple industries by adapting its manufacturing processes to meet sector-specific requirements:
| Industry | Typical Applications | Special Requirements |
|---|---|---|
| Automotive | Connectors, brackets, clips, sensors | PPAP documentation, traceability, high-volume production |
| Electronics | Shielding cases, terminal blocks, housings | EMI/RFI shielding, precision dimensions, cosmetic finishes |
| Medical | Instrument components, fixtures, housings | Biocompatible materials, cleanroom production, validation documentation |
| Industrial | Fasteners, mounting plates, mechanical components | High strength materials, corrosion resistance, dimensional stability |
FAQ
What is your minimum order quantity for custom metal stamping parts?
Our minimum order quantity depends on the complexity of the part and required tooling. For simple components using existing dies, we can accept orders as low as 1,000 pieces. For new custom designs requiring die fabrication, our economic order quantity typically starts at 5,000-10,000 pieces depending on the part size and material.
How do you ensure dimensional accuracy for CNC machined components?
We implement multiple quality control measures throughout the CNC machining process: 1) Incoming material inspection using calipers and micrometers, 2) In-process inspection with coordinate measuring machines (CMM) for critical dimensions, 3) Final inspection including functional testing when applicable, and 4) Statistical process control (SPC) to monitor production stability. All measuring equipment is calibrated regularly to maintain accuracy.
Can you provide material certificates for your metal components?
Yes, we can supply material test reports (MTRs) from our certified suppliers for all raw materials used in production. For customers requiring additional certification, we can arrange third-party testing and certification services including SGS, TÜV, or other accredited laboratories at an additional cost.
What surface treatment options are available for your metal parts?
We offer a comprehensive range of surface treatments to enhance corrosion resistance, wear resistance, and aesthetic appearance: 1) Metal finishing: Electroplating (zinc, nickel, chrome), anodizing, passivation, black oxide coating, 2) Mechanical finishing: Polishing, brushing, sandblasting, tumbling, 3) Special coatings: PTFE coating, epoxy powder coating,达克罗涂层. The appropriate treatment depends on the material type and application environment.
How do you handle design changes during production?
Our engineering team works closely with customers throughout the production process. For minor design modifications that don’t affect tooling, we can implement changes immediately after customer approval. For modifications requiring tooling changes, we evaluate the impact on cost and lead time, then provide revised quotations and production schedules for customer confirmation before proceeding.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a trusted partner for international businesses seeking high-quality custom metal components. With two decades of experience in precision stamping, CNC machining, and injection molding, the company offers comprehensive manufacturing solutions from prototype development to mass production. Its ISO 9001:2015 certified facilities, advanced equipment, and skilled workforce ensure consistent product quality while maintaining competitive pricing and reliable delivery schedules.
The manufacturer’s vertical integration capability, covering everything from material procurement to final assembly, provides customers with significant advantages in terms of cost control, quality assurance, and production flexibility. By continuously investing in new technologies and process improvements, Nanpi Haokai remains at the forefront of the metal components manufacturing industry, ready to meet the evolving needs of global clients across automotive, electronics, medical, and industrial sectors.