Nanpi Haokai Hardware Products Co., Ltd., strategically located near Bohai Bay and adjacent to the Beijing-Shanghai Expressway, has established itself as a leading professional manufacturer in China’s metal fabrication industry. With over two decades of continuous innovation and development, the company specializes in designing and producing high-precision metal components that serve diverse industrial applications across multiple sectors.

Comprehensive Manufacturing Capabilities
The company’s production facility spans an impressive 3,000 square meters, housing more than 60 advanced processing machines including 30 sets of 30-250 ton stamping equipment and 30 units of CNC lathes, automatic turning machines, and injection molding machines. This extensive equipment array enables complete in-house production capabilities from design to after-sales service, ensuring consistent quality control throughout the manufacturing process.
Nanpi Haokai’s technical team comprises 16 professional engineers and 7 senior technicians who bring combined expertise to product development and process optimization. The company maintains strict adherence to ISO 9001:2015 quality management standards, implementing comprehensive quality control measures at every production stage. This systematic approach has earned the company recognition from both domestic and international clients across various industries.
Core Product Lines
The company’s product portfolio focuses on three main categories of custom metal components, each designed to meet specific industrial requirements with precision engineering and material versatility:
1. Precision Metal Stamping Parts
The metal shovel series represents the company’s stamping expertise, featuring one-piece construction from solid metal sheets through stretching and bending processes. These robust components eliminate welding points, ensuring exceptional durability and resistance to bending or cracking. Standard features include reinforced ribs, smooth curved surfaces, and pre-drilled mounting holes that facilitate easy assembly without secondary processing.
Customization options cover a wide range of materials including cold-rolled steel, stainless steel, aluminum alloy, and copper, with thickness specifications from 0.5mm to 10mm. The company’s stamping capabilities extend to various industrial applications such as equipment mounting, material handling, and mechanical assembly.

2. CNC Machined Components
The brass connecting rod series exemplifies the company’s CNC precision machining capabilities, producing components with exact dimensional tolerances and smooth surface finishes. Manufactured from high-quality brass with excellent electrical and thermal conductivity, these parts feature anti-oxidation properties and corrosion resistance.
Material options extend beyond brass to include phosphor copper, red copper, aluminum, and iron, with customizable dimensions ranging from 2mm to 200mm in length. Surface treatment choices include tin plating, zinc plating, and polishing to meet specific environmental requirements. Typical applications span electrical connectors, automotive components, new energy equipment, medical instruments, and electrical terminals.
3. Non-Standard Custom Hardware
The precision knurled zinc-plated bushing series demonstrates the company’s ability to produce specialized components through CNC turning processes. These bushings feature smooth inner bores, precise dimensional control, and knurled exteriors that enhance friction during assembly to prevent loosening during operation.
Material selection includes iron, stainless steel, brass, and aluminum, with customizable specifications for bore diameter (3-100mm), length (5-300mm), and wall thickness (0.5-20mm). Surface treatments range from zinc plating to nickel plating and anodizing. These versatile components find applications in fasteners, wire harness connectors, instrument bushings, furniture hardware, and mechanical positioning systems.
Customization Capabilities
Nanpi Haokai distinguishes itself through its comprehensive customization services that address diverse client requirements:
- Material Flexibility: The company maintains extensive material inventory including various steels, aluminum alloys, copper alloys, and engineering plastics, enabling rapid material substitution based on specific application needs.
- Dimensional Precision: Advanced CNC equipment ensures components meet exact specifications with tolerances as tight as ±0.01mm, critical for high-precision assemblies.
- Surface Treatment Options: More than 20 surface treatment processes are available including plating, anodizing, painting, and polishing to enhance corrosion resistance, electrical properties, or aesthetic appearance.
- Prototyping Services: The company offers rapid prototyping with sample delivery within 3-7 days, facilitating product development and design verification before full-scale production.
- Small Batch Production: Flexible production lines accommodate orders from single prototypes to mass production runs exceeding 100,000 pieces per month.
| Customization Parameter | Available Options |
|---|---|
| Materials | Steel, Stainless Steel, Aluminum Alloy, Brass, Copper, Engineering Plastics |
| Dimensional Tolerance | ±0.01mm to ±0.1mm depending on component size |
| Surface Treatments | Zinc Plating, Nickel Plating, Chrome Plating, Anodizing, Powder Coating, Passivation |
| Production Volume | 1 piece to 100,000+ pieces per month |
| Lead Time | 3-7 days for prototypes, 15-30 days for mass production |
Industry Applications
Nanpi Haokai’s custom metal components serve critical functions across multiple high-technology industries:

1. New Energy Sector
The company supplies precision components for solar inverters, wind turbine control systems, and battery management systems. Specialized parts include conductive connectors, mounting brackets, and heat dissipation components designed to withstand harsh environmental conditions while maintaining electrical performance.
2. Automotive Industry
Custom metal parts contribute to vehicle safety systems, powertrain components, and interior assemblies. Production capabilities include high-strength stamping parts for chassis systems, precision machined components for engine management, and corrosion-resistant parts for electric vehicle battery packs.
3. Medical Equipment
The company produces biocompatible metal components for diagnostic devices, surgical instruments, and patient monitoring systems. Strict quality control measures ensure compliance with medical industry standards for cleanliness, dimensional precision, and material safety.
4. Electrical Engineering
Custom connectors, terminal blocks, and enclosure components form the core of the company’s electrical product range. These parts feature precise electrical contact surfaces, durable insulation properties, and flame-retardant characteristics to meet international safety standards.
FAQ
What is the minimum order quantity for custom metal parts?
Nanpi Haokai accepts orders starting from single prototypes with no minimum quantity requirements. The company specializes in supporting both product development stages and established production lines, offering flexible batch sizes from 1 piece to mass production runs exceeding 100,000 units per month.
How does the company ensure dimensional accuracy in custom components?
Quality control begins with advanced CAD/CAM software for precise programming, followed by in-process inspection using coordinate measuring machines (CMM) and optical comparators. Final inspection verifies all critical dimensions against customer specifications before shipping, with inspection reports available upon request.
What lead times can be expected for custom metal part production?
Prototype production typically requires 3-7 working days depending on complexity. Mass production lead times range from 15-30 days based on order volume and current production schedules. The company maintains strategic material inventory to minimize raw material procurement delays.
Does the company provide design assistance for custom metal components?
Yes, Nanpi Haokai offers comprehensive design support services including material selection guidance, structural optimization, and DFM (Design for Manufacturing) analysis. The technical team collaborates closely with clients during the product development phase to ensure manufacturability and cost-effectiveness.
Summary
Nanpi Haokai Hardware Products Co., Ltd. has established itself as a trusted partner for custom precision metal components through two decades of dedicated focus on quality and innovation. The company’s comprehensive capabilities—from advanced equipment and skilled personnel to rigorous quality management—enable it to deliver solutions that meet the exacting standards of global industries. By combining material expertise, precision engineering, and flexible production, Nanpi Haokai continues to expand its role in supporting technological advancement across multiple sectors while maintaining its commitment to customer satisfaction through reliable products and professional service.