For over two decades, Nanpi Haokai Hardware Products Co., Ltd. has established itself as a leading manufacturer of custom metal components in China. Located near Beijing-Shanghai Expressway with convenient transportation access, our company combines advanced production equipment with technical expertise to deliver precision hardware solutions for global clients. Specializing in metal stamping, CNC machining, and injection molding, we serve diverse industries including automotive, medical equipment, electrical appliances, and machinery manufacturing.
Comprehensive Manufacturing Capabilities
Our production facility spans over 3,000 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 metal stamping to complex CNC machined components with tight tolerances. Our technical team comprising 16 engineers and 7 senior technicians ensures all production processes meet international quality standards.
The company maintains strict quality control throughout the manufacturing cycle. From raw material inspection to final product testing, we implement comprehensive quality management systems aligned with ISO 9001:2015 standards. This commitment to quality has helped us establish long-term partnerships with Fortune 500 companies across Europe, North America, and Asia-Pacific regions.
Core Product Lines and Customization
Our product portfolio covers three main categories:
1. Precision Metal Stamping Components
Our metal shovel components exemplify our stamping capabilities. Manufactured through single-piece stretching and bending from solid metal sheets, these products feature no welds or joints for maximum durability. The integrated design includes reinforced ribs, smooth curved surfaces, and standard mounting holes that eliminate secondary processing for customers. We offer material options including cold-rolled steel, stainless steel, aluminum alloy, and copper to suit different working environments.
2. CNC Machined Components
The brass connector rods represent our precision CNC machining expertise. These one-piece components feature precise dimensions and smooth surfaces without burrs, ensuring smooth insertion and removal. Made from high-quality brass, they offer excellent electrical conductivity and corrosion resistance. We also provide alternative materials including phosphor copper, red copper, aluminum, and iron, with customizable dimensions, structures, and surface treatments like tin plating, zinc plating, and polishing.
Our CNC capabilities extend to producing precision knurled zinc-plated sleeves (metal bushings) through numerical control turning. These components feature smooth inner walls, precise dimensions, and middle knurling patterns that significantly increase assembly friction to prevent loosening during equipment operation. The zinc plating provides excellent corrosion protection for long service life.
3. Custom Injection Molded Parts
While not our primary focus, we maintain injection molding capabilities to provide complete hardware solutions. Our equipment can produce various plastic components that complement our metal products, enabling us to offer integrated assemblies that reduce customers’ supply chain complexity.
| Product Category | Material Options | Customization Capabilities |
|---|---|---|
| Metal Stamping | Cold-rolled steel, stainless steel, aluminum, copper | Dimensions, shapes, hole patterns, surface finishes |
| CNC Machining | Brass, copper, aluminum, steel, plastics | Tolerances ±0.01mm, complex geometries, surface treatments |
| Injection Molding | ABS, PC, PA, POM, PP | Color matching, texture finishes, insert molding |
Specialized Components for Demanding Applications
Our brass stretched copper shells (connector terminal housings) demonstrate our ability to produce precision stamped components with complex geometries. These one-piece seamless housings feature compact structures and precise positioning for reliable electrical connections. Made from high-conductivity copper materials, they offer excellent corrosion resistance and can be customized with precious metal plating like gold, silver, or nickel for specialized applications.
The standard elastic clips in our product range showcase our mass production capabilities for general-purpose hardware. Manufactured through one-piece stamping and bending with quenching treatment, these clips provide consistent clamping force while maintaining elasticity. Available in various materials with anti-rust surface treatments, they serve as reliable fixing solutions for electrical equipment, pipes, and precision instruments.
Full-Cycle Custom Manufacturing Services
Beyond our standard product lines, we specialize in non-standard custom metal component production. Our service covers the complete product lifecycle:
- Design Optimization: Our engineering team reviews customer drawings to suggest improvements for manufacturability and cost efficiency
- Prototyping: We produce samples using the same production processes as mass manufacturing to ensure design validation
- Mass Production: Our advanced equipment and skilled technicians maintain consistent quality during high-volume production
- Quality Control: We implement statistical process control (SPC) and final inspection protocols to meet customer specifications
- After-Sales Support: Our dedicated team addresses any quality concerns promptly and provides technical assistance
This comprehensive approach has enabled us to successfully complete projects for clients in automotive, renewable energy, medical devices, and industrial equipment sectors. Our ability to handle complex geometries, tight tolerances, and diverse material requirements makes us a preferred partner for companies seeking reliable custom metal component suppliers.
FAQ
What types of custom metal components can your company produce?
We specialize in custom metal stamping parts, CNC machined components, and can also produce injection molded parts. Our capabilities include producing complex geometries with tight tolerances (±0.01mm for CNC parts) in various materials including metals (steel, stainless steel, aluminum, brass, copper) and engineering plastics.
How do you ensure the quality of custom metal components?
Quality control begins with raw material inspection and continues through every production stage. We implement ISO 9001:2015 quality management systems with statistical process control (SPC) during manufacturing and final inspection before shipment. Our advanced testing equipment verifies dimensional accuracy, mechanical properties, and surface finishes according to customer specifications.
What is your minimum order quantity for custom components?
We accommodate both small and large orders. For custom components, our minimum order quantity typically starts at 500 pieces for stamping parts and 100 pieces for CNC machined components, depending on the complexity. We also offer prototyping services with no minimum quantity requirement to help customers validate designs before mass production.
How long does it take to produce custom metal components?
Production lead times depend on component complexity and order quantity. For simple stamping parts, sample production takes 7-10 days with mass production in 15-20 days. CNC machined components require 10-15 days for samples and 20-25 days for production. We maintain flexible production schedules and can expedite orders when necessary.
What surface treatments are available for custom metal components?
We offer comprehensive surface treatment options including zinc plating, nickel plating, chrome plating, tin plating, anodizing, powder coating, passivation, and various polishing finishes. For corrosion protection, we provide specialized treatments like salt spray testing to ensure durability in harsh environments.
Can you produce components from customer-supplied materials?
Yes, we accept customer-supplied materials (CONSUM) for production with proper documentation and material certificates. However, we recommend using our approved material suppliers to ensure consistent quality and traceability throughout the manufacturing process.
How do you handle design changes during production?
We maintain open communication channels to address design modifications promptly. For minor changes, we can often implement them without significant delay. Major modifications may require revised samples and production scheduling adjustments. Our engineering team works closely with customers to minimize impacts on lead times and costs.
What file formats do you accept for custom component designs?
We accept most common CAD file formats including STEP, IGES, DWG, DXF, and SolidWorks files. For simpler components, PDF drawings with dimensions or even hand-drawn sketches with clear specifications can be sufficient for initial quoting and sample development.
Do you provide assembly services for custom components?
Yes, we offer assembly services for components we manufacture. This includes simple part fitting to complex sub-assembly production. Our assembly capabilities help customers reduce their supply chain complexity and achieve better quality control for finished products.
How do you protect customer intellectual property for custom components?
We take customer IP protection very seriously. All design files and technical information remain strictly confidential under non-disclosure agreements (NDAs). Our production facilities have controlled access and we implement data security protocols to prevent unauthorized information disclosure.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a trusted partner for custom metal component manufacturing, combining two decades of industry experience with advanced production capabilities. Our ISO 9001:2015 certified facility in China produces precision metal stamping parts, CNC machined components, and injection molded parts for global clients across multiple industries. With comprehensive customization options, strict quality control, and flexible production capabilities, we help customers reduce costs while maintaining high product quality standards. Whether you require simple hardware components or complex precision parts, our technical team is ready to turn your designs into reliable, high-performance products.