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Custom Metal Parts Manufacturer: Precision Stamping & CNC Machining Solutions

2026-08-19

Nanpi Haokai Hardware Products Co., Ltd. specializes in custom metal parts manufacturing including precision stamping, CNC machining, and plastic injection molding. As an ISO 9001:2015 certified supplier, we provide tailored solutions for automotive, medical, and industrial applications worldwide.

In today’s competitive manufacturing landscape, finding a reliable partner for custom metal parts production is crucial for businesses across various industries. Nanpi Haokai Hardware Products Co., Ltd., located near Bohai Bay and adjacent to the Beijing-Shanghai Expressway, has established itself as a leading manufacturer specializing in precision metal components for global markets. With over two decades of experience in metal stamping and CNC machining, the company combines advanced technology with skilled craftsmanship to deliver high-quality custom solutions.

Precision metal stamping production line

Comprehensive Manufacturing Capabilities

Nanpi Haokai operates a state-of-the-art facility equipped with 30-250 ton stamping presses, CNC machining centers, automatic lathes, and injection molding machines totaling over 60 units. This extensive equipment base enables the company to handle projects ranging from simple stamped brackets to complex CNC-machined components with micron-level precision. The production team, comprising 16 technical specialists and 7 senior technicians, ensures that every project receives expert attention from design through production.

The company’s integrated manufacturing process covers every stage of production: from initial design and prototyping to mass production and quality control. This vertical integration allows for greater control over lead times, costs, and product quality while providing customers with a single point of contact throughout the project lifecycle. With ISO 9001:2015 certification, Nanpi Haokai maintains rigorous quality standards across all operations, ensuring consistent performance and reliability in every component produced.

Core Product Offerings

Nanpi Haokai’s product portfolio focuses on three main categories of custom metal components, each designed to meet specific industry requirements:

1. Precision Stamping Components

The company’s metal shovels exemplify their stamping expertise. Manufactured through single-piece stretching and bending from solid metal sheets, these shovels feature:

  • Reinforced ribs for enhanced durability
  • Smooth, rounded edges for safe handling
  • Standard mounting holes for easy installation
  • Material options including cold-rolled steel, stainless steel, aluminum, and copper

These design features eliminate the need for secondary processing, reducing customers’ assembly costs while ensuring consistent quality across production batches. The shovels find applications in various industrial equipment, construction machinery, and material handling systems.

CNC machined brass connecting rods

2. CNC Machined Components

The company’s brass connecting rods demonstrate their CNC machining capabilities. These precision components feature:

  • One-piece construction for structural integrity
  • Dimensional accuracy within ±0.01mm
  • Smooth surface finish with Ra ≤ 0.8μm
  • Material options including phosphor bronze, brass, aluminum, and steel

Designed for electrical connectors, automotive components, and medical devices, these connecting rods provide reliable electrical conductivity while withstanding repeated insertion and removal cycles. The company can customize dimensions, structures, and surface treatments to meet specific application requirements.

3. Specialized Metal Components

Nanpi Haokai also produces specialized components like their precision knurled zinc-plated bushings. These non-standard parts offer:

  • Numerically controlled turning for precise dimensions
  • Middle knurling pattern for enhanced grip
  • Zinc plating for corrosion resistance
  • Customizable bore diameter, length, and wall thickness

Widely used in fasteners, wire harness connectors, and mechanical positioning systems, these bushings demonstrate the company’s ability to create functional, application-specific components that solve unique engineering challenges.

Industry Applications and Solutions

Nanpi Haokai serves diverse industries including automotive, electronics, medical devices, instrumentation, and machinery manufacturing. Their ability to customize components for specific applications makes them valuable partners for companies seeking to optimize product performance or reduce manufacturing costs.

For automotive manufacturers, the company provides components like custom shovels for engine compartments and precision bushings for suspension systems. In the medical field, they produce sterile-processable parts that meet strict biocompatibility requirements. Electronics companies benefit from their EMI shielding components and connector housings, while industrial machinery manufacturers utilize their durable, wear-resistant parts in high-stress environments.

Industry Typical Applications Material Options
Automotive Engine components, suspension parts, connectors Stainless steel, aluminum, brass
Medical Surgical instruments, diagnostic equipment parts Titanium, medical-grade stainless steel
Electronics EMI shielding, connector housings, heat sinks Aluminum, copper, steel
Industrial Machinery components, fasteners, bushings Carbon steel, alloy steel, brass

Precision metal stamping components

Customization Capabilities and Process

Understanding that each customer has unique requirements, Nanpi Haokai offers comprehensive customization services across all product lines. Their process begins with detailed consultation to understand the application’s functional requirements, environmental conditions, and performance expectations. Based on this information, their engineering team develops optimized solutions that balance performance, cost, and manufacturability.

The customization process typically includes:

  • Material selection based on mechanical properties, corrosion resistance, and cost
  • Dimensional optimization to minimize material usage while maintaining structural integrity
  • Surface treatment recommendations to enhance durability or aesthetic appeal
  • Prototyping and testing to validate designs before full-scale production

This collaborative approach ensures that customers receive components that perfectly match their needs while avoiding costly design revisions during production. The company’s ability to work from customer drawings, samples, or even conceptual descriptions provides flexibility for projects at various development stages.

Quality Assurance and Certification

Quality forms the foundation of Nanpi Haokai’s operations. As an ISO 9001:2015 certified manufacturer, they implement rigorous quality control measures throughout the production process:

  • Incoming material inspection to verify specifications
  • In-process quality checks during machining and stamping
  • Final inspection using precision measuring equipment
  • Batch testing for critical performance parameters

This comprehensive quality system ensures that every component meets or exceeds customer expectations for dimensional accuracy, surface finish, and mechanical properties. For customers in regulated industries, the company can provide documentation tracing each component through the production process, including material certificates and inspection reports.

FAQ

What types of custom metal components can Nanpi Haokai produce?

We specialize in precision stamping components, CNC machined parts, and plastic injection molded products. Our capabilities include custom shovels, connecting rods, bushings, brackets, housings, and various non-standard components tailored to specific applications across automotive, medical, electronics, and industrial sectors.

How does the company ensure component quality for international customers?

As an ISO 9001:2015 certified manufacturer, we implement strict quality control at every production stage. This includes incoming material inspection, in-process checks, and final inspection using precision measuring equipment. We also provide complete documentation including material certificates and inspection reports for regulated industries.

What is the typical lead time for custom metal part production?

Lead times vary based on component complexity and order quantity. For simple stamped parts, production can begin within 1-2 weeks after design approval. CNC machined components typically require 2-4 weeks, while complex assemblies may take 4-6 weeks. We work closely with customers to optimize schedules and accommodate urgent requirements when possible.

Can the company produce components with special surface treatments?

Yes, we offer a wide range of surface treatment options including zinc plating, nickel plating, chrome plating, anodizing, powder coating, and passivation. Our engineering team can recommend the most suitable surface treatment based on your application’s environmental conditions and performance requirements.

What file formats does the company accept for custom designs?

We accept most common CAD file formats including STEP, IGES, DWG, DXF, and SolidWorks files. For simpler components, we can also work from PDF drawings or even hand sketches with dimensions. Our engineering team can assist with converting and optimizing your designs for manufacturing.

Does the company provide design assistance for custom components?

Absolutely. Our experienced engineering team offers design for manufacturing (DFM) services to optimize your components for cost-effective production. We can suggest material alternatives, dimensional adjustments, and manufacturing process improvements to enhance performance while reducing costs.

What is the minimum order quantity for custom metal parts?

We accommodate both small and large production runs. For simple stamped parts, we can produce quantities as low as 100 pieces for prototyping or small-batch production. CNC machined components typically have a minimum order quantity of 50-100 pieces depending on complexity. We also offer progressive discounts for larger volume orders.

How does the company handle confidentiality for custom designs?

We take customer confidentiality seriously and are willing to sign non-disclosure agreements (NDAs) before discussing project details. All customer designs, specifications, and proprietary information are treated with strict confidentiality and are not shared with third parties without explicit permission.

What industries does the company primarily serve?

Our components are used across multiple industries including automotive (engine components, suspension parts), medical (surgical instruments, diagnostic equipment), electronics (EMI shielding, connectors), and industrial machinery (fasteners, bushings, brackets). We have experience meeting the specific requirements of each industry sector.

Can the company provide samples before full production?

Yes, we offer prototyping services to produce samples for testing and approval before full-scale production. This helps verify design specifications, fit, and function while identifying any potential issues early in the process. Sample production typically takes 1-3 weeks depending on component complexity.

Summary

Nanpi Haokai Hardware Products Co., Ltd. stands as a trusted partner for businesses seeking high-quality custom metal components. With over 20 years of experience in precision stamping and CNC machining, the company combines advanced manufacturing technology with skilled craftsmanship to deliver components that meet exacting international standards. Their ISO 9001:2015 certification, comprehensive quality control, and customer-focused approach ensure reliable performance across diverse industrial applications.

The company’s ability to customize components for specific applications, from simple brackets to complex assemblies, makes them valuable to automotive manufacturers, medical device companies, electronics producers, and industrial machinery builders alike. With competitive pricing, flexible production volumes, and responsive service, Nanpi Haokai continues to expand its global presence while maintaining the high standards that have earned them long-term partnerships with major international brands.


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