Nanpi Haokai Hardware Products Co., Ltd. has established itself as a leading custom metal parts manufacturer in China after more than two decades of continuous innovation and development. Located near Beijing-Shanghai Expressway with convenient transportation access, our company specializes in providing comprehensive metal fabrication solutions including precision stamping, CNC machining, and injection molding services. With 30+ sets of 30-250 ton stamping equipment and 30+ CNC processing machines, we deliver high-quality custom metal components to clients worldwide.
Comprehensive Metal Fabrication Capabilities
Our production facility spans over 5,000 square meters with complete processing equipment covering the entire manufacturing chain. The core equipment includes:
- 30+ sets of 30-250 ton precision stamping machines
- 30+ CNC processing centers including automatic lathes and CNC walking core machines
- Advanced injection molding equipment for plastic-metal composite components
- Full set of quality inspection instruments ensuring compliance with ISO9001:2015 standards
The technical team comprising 16 engineers and 7 senior technicians enables us to handle complex custom projects from design optimization to mass production. Our integrated production system covers material selection, precision processing, surface treatment, quality inspection, and after-sales service, ensuring consistent product quality throughout the manufacturing process.
Core Product Lines and Customization Services
We specialize in three main product categories with extensive customization capabilities:
1. Precision Stamping Components
Our stamping capabilities range from 0.1mm to 10mm thickness with tolerance control within ±0.02mm. The metal shovel series exemplifies our stamping expertise – manufactured through single-piece stretching and bending without welding, these products feature reinforced structures and smooth surfaces. Customizable materials include cold-rolled steel, stainless steel, aluminum alloy, and copper, catering to various industrial equipment requirements.
2. CNC Machined Parts
The CNC processing center produces components with dimensional accuracy reaching ±0.005mm and surface roughness below Ra0.8. Our brass connecting rod series demonstrates this precision – manufactured through single-piece forming with smooth surfaces and precise dimensions. The products support material substitution including phosphor copper, red copper, aluminum, and iron, with customizable surface treatments like tin plating, zinc plating, and polishing.
Typical applications include:
- Automotive connectors and terminals
- New energy equipment conductive components
- Medical instrument precision parts
- Electrical appliance connection terminals
3. Non-Standard Hardware Customization
We excel in producing specialized components like the precision knurled zinc-plated sleeves. Manufactured through CNC turning with ±0.01mm dimensional accuracy, these sleeves feature middle knurling patterns that increase friction by 300% compared to smooth surfaces. The zinc plating provides excellent corrosion resistance, making them suitable for:
- Mechanical positioning components
- Wire harness connectors
- Instrument bushings
- Furniture hardware
| Product Parameter | Specification Range | Tolerance Control |
|---|---|---|
| Stamping Thickness | 0.1-10mm | ±0.02mm |
| CNC Dimensional Accuracy | Up to 500mm | ±0.005mm |
| Surface Roughness | Ra0.2-3.2 | As required |
| Material Options | Steel, Stainless, Brass, Aluminum, Plastic | Material certification available |
Industry-Specific Solutions
Our custom metal components serve multiple industries with specialized solutions:
Automotive Industry
The standard elastic clip series demonstrates our automotive capabilities. Manufactured through single-piece stamping and bending with quenching treatment, these clips maintain stable clamping force while allowing easy installation. The complete size range and material options (steel, stainless, copper) make them ideal for:
- Pipe fixation systems
- Battery pack assembly
- Interior component mounting
- Engine compartment fixtures
Medical Equipment
For medical applications, we produce components with biocompatible surface treatments and precise dimensional control. The brass拉伸铜壳 (connector terminal housing) series meets medical-grade requirements with:
- Seamless stamping construction preventing bacterial accumulation
- Customizable gold/silver/nickel plating for corrosion resistance
- Dimensional tolerance within ±0.01mm for precise assembly
- Material traceability and certification available
New Energy Sector
Our components support the development of renewable energy equipment through specialized features:
- High-conductivity copper materials for efficient power transmission
- Corrosion-resistant surface treatments for outdoor applications
- Precision machining ensuring reliable electrical connections
- Custom structural designs for specific equipment requirements
Quality Assurance System
The ISO9001:2015 certified quality management system covers every production stage:
- Incoming material inspection with spectral analysis
- In-process quality control through CMM measurement
- Final inspection including dimensional verification and functional testing
- Batch traceability system recording all production parameters
- Continuous improvement program based on customer feedback
Our quality department employs 8 dedicated inspectors using advanced measurement equipment including digital calipers, micrometers, roughness testers, and projection comparators to ensure all products meet specified requirements before delivery.
FAQ
What customization options are available for metal components?
We offer comprehensive customization including material selection (steel, stainless, brass, aluminum, etc.), dimensional adjustments (tolerance ±0.005mm for CNC parts), surface treatments (plating, anodizing, polishing), and structural modifications. Our engineering team provides free design optimization suggestions to improve manufacturability and reduce costs.
How does your company ensure production quality?
Quality control follows ISO9001:2015 standards with multiple inspection stages: incoming material verification, in-process quality checks, and final product inspection. We use advanced measurement equipment including CMM machines and maintain complete production records for each batch to ensure traceability.
What is the typical lead time for custom orders?
For new projects requiring tooling development, the lead time is approximately 15-25 days including design confirmation, prototype production, and testing. For repeat orders using existing molds, the production cycle is 7-15 days depending on order quantity. We maintain stock of standard components for immediate delivery.
Can you provide samples before mass production?
Yes, we offer free sample production for custom projects after receiving technical drawings or specifications. The sample production cycle is typically 3-7 days depending on component complexity. We provide detailed inspection reports with each sample for customer verification.
What industries do your metal components serve?
Our products support multiple industries including automotive, medical equipment, new energy, electrical appliances, instrumentation, and mechanical manufacturing. We have experience producing components for battery packs, connectors, medical devices, automotive fixtures, and industrial equipment.
How do you handle small batch orders?
We accept small batch orders starting from 100 pieces with the same quality standards as mass production. Our flexible production system allows efficient handling of both prototype development and large-scale manufacturing, helping customers reduce inventory costs while maintaining supply stability.
What surface treatment options are available?
Common surface treatments include zinc plating, nickel plating, chrome plating, tin plating, anodizing, passivation, and powder coating. For medical applications, we offer specialized treatments like electropolishing and biocompatible coatings. All treatments comply with relevant industry standards.
How does your company ensure on-time delivery?
We implement strict production scheduling using ERP management systems and maintain safety stock of raw materials for common projects. The production department provides daily progress reports and our sales team coordinates closely with customers to address any potential delays promptly.
What file formats do you accept for custom designs?
We accept most common CAD file formats including DWG, DXF, STEP, IGES, and SolidWorks files. For simple components, hand-drawn sketches with dimensions are also acceptable. Our engineering team can assist with file conversion and design optimization if needed.
Do you provide after-sales service for quality issues?
Yes, we offer comprehensive after-sales support including free replacement for any quality defects within warranty period. Our technical team investigates root causes and implements corrective actions to prevent recurrence. We maintain regular communication with customers to ensure continuous satisfaction.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a reliable partner for custom metal component manufacturing with 20+ years of industry experience. Our complete production capabilities covering precision stamping, CNC machining, and injection molding enable us to serve diverse industries with high-quality components. The ISO9001 certified quality system, advanced equipment, and professional technical team ensure consistent product quality and reliable delivery performance. By focusing on customer needs and continuous improvement, we help clients reduce costs, improve efficiency, and enhance product competitiveness in global markets.