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 metal components manufacturer over two decades. Specializing in custom battery parts production and industrial hardware solutions, our company combines advanced manufacturing technology with strict quality control to serve global clients in new energy, automotive, electrical, medical, and instrumentation industries.
Core Manufacturing Capabilities
Our state-of-the-art production facility houses over 30 precision stamping machines ranging from 30 to 250 tons, complemented by 30 CNC machining centers including automatic lathes and walking core machines. This comprehensive equipment array enables us to handle projects from simple stamping parts to complex CNC machined components with exceptional precision. The integration of injection molding machines further expands our capabilities to produce complete metal-plastic hybrid solutions.
The production process follows strict ISO9001:2015 quality management standards at every stage – from initial design and material selection through to final inspection and packaging. Our quality control system incorporates advanced measuring instruments and statistical process control to ensure consistent product quality. Each component undergoes multiple inspection points including dimensional verification, surface finish evaluation, and functional testing before shipment.
Custom Battery Parts Production Expertise
As specialists in battery component manufacturing, we offer comprehensive solutions for battery compression plates, terminals, and connectors. Our battery compression plates feature optimized designs that distribute pressure evenly across cell surfaces while maintaining proper electrode alignment. These plates are manufactured using high-strength materials with precise thickness control to ensure consistent compression force throughout battery life cycles.
For battery terminals, we employ precision stamping combined with CNC machining to create components with exact dimensional tolerances and optimal electrical conductivity. The surface treatment options include nickel plating, silver plating, and tin plating to enhance corrosion resistance and improve solderability. Our engineering team works closely with clients to develop terminal designs that match specific battery chemistry requirements and connection interfaces.
Material Selection Guidelines
The choice of materials significantly impacts battery component performance. We offer comprehensive material selection assistance based on application requirements:
- Copper Alloys: Excellent electrical conductivity (≥85% IACS) with good formability for complex terminal shapes
- Stainless Steel: Superior corrosion resistance for harsh environment applications
- Aluminum Alloys: Lightweight solution with good thermal conductivity for temperature-sensitive applications
- Composite Materials: Custom formulations combining different metals for specific property requirements
Precision Metal Components for Industrial Applications
Beyond battery components, our product portfolio includes a wide range of precision metal parts serving diverse industrial sectors. The metal shovel components we manufacture demonstrate our expertise in forming complex shapes with minimal post-processing. These components feature integral reinforcement ribs and smooth transition radii achieved through progressive die stamping technology, eliminating the need for welding or assembly.
Our CNC-machined brass connecting rods represent another example of precision engineering. Manufactured from high-conductivity brass alloys, these components feature tight dimensional tolerances (±0.02mm) and smooth surface finishes (Ra≤0.8μm). The one-piece construction ensures reliable electrical contact while the customizable design accommodates various connection configurations.
The precision knurled zinc-plated sleeves we produce highlight our non-standard customization capabilities. These components feature precise knurling patterns that provide optimal grip for assembly while maintaining smooth inner bores for shaft rotation. The zinc plating offers excellent corrosion protection (≥500 hours salt spray resistance) and enhances surface appearance.
Surface Treatment Options
We offer comprehensive surface treatment solutions to enhance component performance:
| Treatment Type | Advantages | Applications |
|---|---|---|
| Electroplating (Ni, Ag, Sn) | Improves conductivity, corrosion resistance, solderability | Battery terminals, electrical connectors |
| Zinc Plating | Cost-effective corrosion protection | Mechanical components, fasteners |
| Passivation | Enhances stainless steel corrosion resistance | Medical instruments, food equipment |
| Anodizing | Hard surface coating, color options | Aluminum components, decorative parts |
Customization Process and Quality Assurance
Our customization process begins with comprehensive consultation to understand client requirements and application conditions. Our engineering team then develops optimal manufacturing solutions considering material selection, process parameters, and cost efficiency. For complex projects, we provide prototyping services to validate designs before full-scale production.
The production process incorporates statistical process control (SPC) at critical stages to monitor dimensional accuracy and process stability. Final inspection includes dimensional verification using CMM (Coordinate Measuring Machine), surface finish analysis, and functional testing where applicable. We maintain complete traceability throughout production, with lot number tracking for all raw materials and components.
FAQ
What materials do you use for battery compression plates?
We commonly use stainless steel 304/316 for corrosion resistance, cold-rolled steel for cost-effective solutions, and aluminum alloys for lightweight applications. The material selection depends on specific battery chemistry, operating environment, and compression force requirements.
How do you ensure dimensional accuracy in CNC machined components?
Our CNC machining centers feature high-precision linear guides and ball screws with minimal backlash. We implement comprehensive quality control including in-process inspection with digital calipers and micrometers, and final inspection using CMM for critical dimensions. All machines undergo regular calibration and maintenance.
What surface treatments are available for corrosion protection?
We offer multiple surface treatment options including zinc plating (blue/white/yellow), nickel plating, tin plating, and passivation for stainless steel. For aluminum components, we provide anodizing services. The recommended treatment depends on the application environment and required corrosion resistance level.
Can you manufacture components from customer-provided materials?
Yes, we accept customer-supplied materials for manufacturing with proper documentation and material certificates. Our engineering team will review the material specifications to ensure compatibility with our manufacturing processes and quality requirements.
What is your minimum order quantity for custom components?
Our MOQ depends on component complexity and production process. For simple stamping parts, we can accept orders starting from 500 pieces. For CNC machined components, the MOQ is typically 100-200 pieces. We also offer prototyping services with smaller quantities for design validation.
How do you handle design modifications during production?
We maintain open communication channels throughout production. For minor modifications, we can often implement changes without affecting delivery schedules. For significant design changes, our engineering team will assess the impact on tooling, processes, and costs, and provide revised timelines and quotations.
What certifications do your products comply with?
All our manufacturing processes comply with ISO9001:2015 quality management standards. We can provide material certificates (including SGS reports) and inspection reports for each batch. For specific industry requirements, we assist clients in obtaining additional certifications as needed.
How do you ensure intellectual property protection for custom designs?
We treat all customer designs and specifications as confidential information. Before production, we sign non-disclosure agreements (NDAs) with clients. Our internal document control system restricts access to sensitive information to authorized personnel only.
What is your lead time for custom component production?
Lead time depends on component complexity and order quantity. For simple stamping parts, typical lead time is 15-20 days after order confirmation. For CNC machined components, it’s 20-25 days. We maintain standard components in stock for immediate shipment.
Do you provide assembly services for components?
Yes, we offer assembly services for components we manufacture. Our assembly capabilities include simple part fitting, screw assembly, and light mechanical assembly. For complex assemblies requiring electrical testing or calibration, we partner with certified subcontractors.
Summary
Nanpi Haokai Hardware Products Co., Ltd. stands as a comprehensive solution provider for precision metal components manufacturing, particularly in battery-related applications. With two decades of industry experience, ISO9001 certification, and a complete range of manufacturing equipment, we deliver high-quality custom components that meet stringent international standards. Our commitment to technological innovation, strict quality control, and customer-focused service has earned us long-term partnerships with clients across multiple industries worldwide.