Nanpi Haokai Hardware Co., Ltd., strategically located near Bohai Bay and adjacent to the Beijing-Shanghai Expressway, has established itself as a premier manufacturer of precision metal components over two decades. Specializing in custom metal stamping, CNC machining, and injection molding, our company serves diverse industries including new energy, automotive, electronics, medical equipment, instrumentation, and machinery manufacturing. With a comprehensive production system covering design, prototyping, mass production, and after-sales service, we deliver tailored solutions that meet international quality standards.
Advanced Manufacturing Capabilities
Our production facility houses over 60 advanced machines including 30+ stamping presses ranging from 30 to 250 tons, and 30+ CNC machining centers comprising automatic lathes and walk-heart machines. This equipment enables us to handle projects from simple prototypes to complex mass production runs with consistent precision. Our technical team, including 16 engineers and 7 senior technicians, ensures optimal process implementation and quality control throughout production cycles.
The integration of CAD/CAM systems with our CNC equipment allows for rapid program adjustments and precise dimensional control. Our stamping department utilizes progressive dies for high-volume production while maintaining ±0.05mm tolerance levels. The injection molding department operates with 50-300 ton machines capable of processing engineering plastics like PA66, POM, and PEEK for specialized components.
Core Product Portfolio
Our product range addresses specific industry requirements through specialized designs:
1. Industrial Metal Shovels
Manufactured through single-piece stamping and bending from solid metal sheets, these shovels feature reinforced structures with smooth curved surfaces and standard mounting holes. The design eliminates welding points, preventing cracking under heavy loads while reducing secondary processing requirements for customers. Available in cold-rolled steel, stainless steel, aluminum, and copper alloys, these shovels suit various industrial equipment configurations.
2. Brass Connector Rods
Precision-machined from high-conductivity brass, these rods feature smooth surfaces with precise dimensional tolerances for reliable electrical connections. The one-piece construction ensures consistent conductivity while the material’s natural oxidation resistance extends service life. Customization options include alternative materials (phosphor bronze, red copper), dimensional adjustments, and surface treatments like tin or zinc plating.
3. Knurled Zinc Sleeves
These non-standard bushings combine precise bore tolerances with external knurling for enhanced grip during assembly. The zinc plating provides corrosion protection in humid environments while maintaining tight dimensional control (±0.02mm). Applications span from mechanical positioning to electrical insulation in various industrial equipment.
Quality Assurance System
Our ISO 9001:2015 certified quality management system implements strict controls at every production stage:
- Incoming material inspection with spectral analysis
- In-process quality checks using CMM and optical comparators
- Final product testing including salt spray resistance and dimensional verification
- Batch traceability through unique identification codes
- Continuous improvement programs based on customer feedback
The quality department maintains comprehensive records for all production batches, enabling rapid resolution of any potential issues. Our inspection equipment includes three-coordinate measuring machines, projectors, hardness testers, and tensile testing machines to ensure compliance with international standards.
| Capability | Specification |
|---|---|
| Stamping Press Range | 30-250 tons |
| CNC Machining Accuracy | ±0.005mm |
| Material Processing | Steel, stainless steel, brass, aluminum, plastics |
| Surface Treatments | Zinc plating, anodizing, powder coating, passivation |
FAQ
What customization options are available for metal stamping parts?
We offer comprehensive customization including material selection (steel, stainless steel, aluminum, copper alloys), dimensional adjustments, surface treatments (plating, anodizing, painting), and secondary operations like tapping or bending. Our engineering team works closely with clients to optimize designs for manufacturability and cost efficiency.
How does your company ensure dimensional accuracy in CNC machined components?
Our CNC department implements multiple quality control measures: pre-production program verification, in-process inspection using digital calipers and micrometers, and final dimensional checks with CMM equipment. All machines undergo regular calibration to maintain ±0.005mm accuracy levels.
What lead times can be expected for custom orders?
Production timelines depend on order complexity and quantity. Simple stamping parts typically require 15-20 days for tooling and sampling, followed by 7-10 days for mass production. CNC machined components usually take 10-15 days from design approval to delivery. We maintain flexible production scheduling to accommodate urgent orders when possible.
How does your company handle quality issues after delivery?
We maintain complete batch traceability for all products. In case of any quality concerns, our after-sales team initiates immediate investigation using production records and inspection data. Depending on the issue, we offer replacement parts, on-site technical support, or process improvements to prevent recurrence. All complaints receive resolution within 48 working hours.
Summary
Nanpi Haokai Hardware Co., Ltd. combines two decades of manufacturing expertise with modern equipment and rigorous quality systems to deliver precision metal components that meet global industry standards. Our vertically integrated production capabilities enable us to handle projects from initial design through to final delivery with consistent quality. By maintaining ISO 9001:2015 certification and investing in advanced technology, we ensure reliable supply of custom hardware solutions that help clients improve their product performance and reduce manufacturing costs.