China Anodised Finish Aluminium Manufacturer & Factories

High-Precision Custom Extrusion, CNC Machining, Hot Forging, and Advanced Surface Treatment Solutions Compliant with ISO 9001:2015 & SA8000 Standards.

About Ningbo Jiangbei XinYe Metal Works Co., Ltd.

Founded in 1996 as a specialized family-owned enterprise and successfully developed into a leading, owner-managed SME corporation, Ningbo Jiangbei XinYe Metal Works Co., Ltd. stands as a benchmark of excellence in high-precision metal fabrication and anodised surface finish treatments in China.

Strategically situated in the Ningbo Jiangbei Industrial Zone, our modern facilities are positioned for global logistics, accessible within a 3-hour high-speed train connection from Shanghai International Airport. Over the past 28 years, we have transitioned from traditional manufacturing to a high-tech metal engineering hub servicing high-barrier industries worldwide.

"We integrate technological innovation with traditional forging and CNC craftsmanship to provide comprehensive, turnkey solutions to our clients in North America, Europe, and Asia."
Ningbo Jiangbei XinYe Metal Works Factory Building
1996
Established Year
16,000㎡
Production Area
130+
Skilled Team Members
20+
Technical Model Patents

Anodised Finish Aluminium: Technical Deep-Dive & Industry Trends

Understand the mechanical properties, electrochemical processes, and macroeconomic factors driving the selection of high-grade anodised aluminium.

1. Technical Overview: The Electrochemical Anodising Process

Anodising is an electrochemical passivating mechanism that converts the surface of raw aluminium into an exceptionally durable, corrosion-resistant, and aesthetically versatile anodic oxide finish. Unlike coating processes like painting or powder coating, the anodised finish is fully integrated with the underlying aluminium substrate, eliminating risks of peeling, chipping, or flaking.

In our specialized surface treatment facility, the process utilizes a controlled direct current (DC) running through an acidic electrolyte bath (typically sulfuric acid, H2SO4). The aluminium component acts as the anode. This reaction releases oxygen ions which combine with the surface aluminium atoms to form a highly structured, porous aluminium oxide layer (Al2O3). This porous layer is subsequently colored using organic/inorganic dyes or metal salts and hydro-thermally sealed at high temperatures to lock in the color and seal the pores.

2. Alloy Selection and Metallurgical Considerations

Not all aluminium alloys react identically under anodisation. Material purity, crystalline grain structures, and alloying elements heavily influence the final film clarity, hard-coat thickness, and aesthetic uniformity:

  • 6000-Series Alloys (e.g., 6061, 6063, 6082): The primary choice for structural profiles, hot forgings, and CNC machined parts. These alloys offer excellent response to anodising, forming uniform protective oxide layers with rich color saturation.
  • 5000-Series Alloys (e.g., 5052, 5754): Highly suited for stamping and marine grade applications. They develop highly corrosion-resistant coatings, making them suitable for aggressive outdoor and industrial settings.
  • 7000-Series Alloys (e.g., 7075): Frequently utilized in aerospace structures and automotive transmission components where yield strength is paramount. These require specific temperature and voltage profiles during anodisation to avoid discoloration and ensure proper hard-coat structural integrity.
Anodising Standard / Type Typical Film Thickness Key Properties Primary Industrial Applications
Type I (Chromic Acid Anodising) 0.5μm – 2.5μm Thinnest protective layer, maintains fatigue strength of high-strength alloys. Aerospace structural assemblies, defense hardware.
Type II (Sulfuric Acid Anodising) 5μm – 25μm Excellent color dye absorption, high corrosion resistance, decorative finish. Consumer electronics, automotive trim, medical instruments, household appliances.
Type III (Hardcoat Anodising) 25μm – 100μm+ Extreme wear resistance, high dielectric insulation, low coefficient of friction. Engine cylinder bores, hydraulic valves, sliding gears, heavy-duty marine parts.

Global Procurement Challenges & Macro Solutions

Addressing the complex requirements of supply chain risk mitigation, technical compliance, and sustainable production for global engineering buyers.

Supply Chain De-risking

Global logistics and geographical concentration pose inherent risks to supply chains. XinYe mitigates this by providing a unified solution that manages raw material procurement, hot forging, high-precision multi-axis CNC machining, advanced anodising, and final assembly under one roof, reducing lead times and handling interfaces.

Strict Technical Compliance

Meeting rigorous international standards like REACH, RoHS, and specialized industrial parameters (such as ASTM-B117 salt spray ratings) is non-negotiable. Our in-house testing lab verifies anodised oxide thickness, sealing quality (via acid dissolution test methods), and color fastness before any batch departs.

ESG and Decarbonisation

With Carbon Border Adjustment Mechanisms (CBAM) coming into effect globally, green production is essential. XinYe has optimized its energy mix and anodising line water conservation loops, ensuring our products carry a lower embedded carbon footprint, helping global OEMs meet scope 3 emission goals.

Vertical Integration: Core Manufacturing Capabilities

Combining heavy-tonnage forging machinery with high-precision CNC equipment to form complex metallic architectures finished with expert surface treatments.

Advanced Metal Forming & Machining Infrastructure

Our production floor is designed to manage dynamic scaling. While operating a baseline schedule of 16 hours a day across 6 days a week, we can transition to a 24/7 continuous operation mode within 30 days to accommodate surge demands.

Hot Forging & Forming Press Line

  • Friction press machines with capacity from 300 tons to 1,000 tons.
  • Column hydraulic machines with capacity from 100 tons to 630 tons.
  • Punching press machines from 5 tons to 250 tons.

CNC Machining Center

  • Precision CNC machining centers with 4-axis control.
  • High-speed CNC turning and milling machinery.
  • Configured for high-tolerance component generation down to ±0.005mm.

Anodising & Chemical Finishing

  • In-house anodising and electrolytic polishing lines.
  • Multiple dye options, architectural coloring, and satin finishes.
  • Fully automated temperature and electrochemical parameter tracking.

Corporate Video Showcase

Watch our manufacturing processes, including hot forging, multi-axis machining, and quality control steps in action at the Ningbo factory.

Advanced CNC Turning Demonstration

Witness our specialized machine machining components with tight tolerance requirements for global industrial applications.

Uncompromising Quality Control Framework

Quality is the cornerstone of our operations. Supported by ISO 9001:2015 and SA8000 certifications, we monitor structural and aesthetic parameters at every phase.

Source Control & In-Process Verification

Each batch of raw material undergoes spectral analysis to verify chemical composition before processing. High-precision tooling and automated monitoring ensure components stay within specification during machining.

Our quality assurance department utilizes modern metrological equipment, verifying critical tolerances and functional characteristics prior to packaging.

  • Spectrographic Testing: Verification of alloy composition.
  • Coordinate Metrology (CMM): Dimensional control.
  • Microhardness Profiling: Hardcoat layer performance validation.
  • Roughness Inspection: Tactile finish testing.
Quality Inspection Workstation

Metrological Testing & Inspection Equipment

GNR Spectrum Analyzer

GNR Spectrum Analyzer

Chemical composition verification.

CMM Inspection Machine

CMM Inspection Machine

3D dimensional metrology.

Video Measuring System

Video Measuring System

Optical contour analysis.

Rough Meter

Roughness Tester

Surface micro-profile measurement.

Alternative Video Measuring System

Secondary Video Measuring Station

Dedicated inspection for optical verification of high-precision stamped profiles.

Spring Tension/Compression Testing Machine

Tension & Compression Testing Machine

Verifies structural parameters and tensile loading resistance.

Production Workflow

From technical review to quality control and logistics management, we coordinate each phase of custom fabrication.

01

Technical Consultation

Engineering review of client drawings, material analysis, DFM (Design for Manufacturability) planning, and toolpath simulations.

02

Sample Generation

Small-batch material procurement, prototype forging/machining, initial anodisation validation, and dimensional report generation.

03

Client Feedback Loop

Prototype evaluation, fit-testing, color adjustments, and functional verification prior to production sign-off.

04

Mass Production

Automated manufacturing scheduling, process-integrated inspection checkpoints, and final surface treatment cycles.

05

After-Sales Support

Logistic tracking, material trace documentation delivery, and a comprehensive 1-year manufacturing defect warranty.

Proven Industry Applications & Case Studies

Explore examples of our precision manufacturing and surface treatments deployed in high-performance sectors globally.

Industrial Components Case Study

Heavy Machinery & Industrial Systems

High-load structural connectors requiring hot-forged aluminum cores and type III hard anodised coatings for wear mitigation under aggressive operating environments.

Substrates Utilized: Stainless Steel, Aluminium Alloys (6000 & 7000 Series)

Automotive Components Case Study

Automotive Transmission & Lightweighting

Tight tolerance bracketry, gear covers, and shift components designed to reduce unsprung weight while meeting performance standards for powertrain sub-assemblies.

Substrates Utilized: Aluminium Alloys, Stamped Steel Formings

Aerospace Fuel Infrastructure Case Study

Aerospace & Aviation Fuelling Infrastructure

Manufacture of critical components, including Aviation Fuel Hydrant Pit Box systems, hinge assemblies, and turbine inlets demanding chemical compatibility and surface integrity.

Substrates Utilized: Cast Alloys, High-Temp Stainless Steel

Wood Chipper Assembly Components Case Study

Heavy-Duty Forestry & Processing Systems

Precision wood chipper cutting discs and feed rollers built to withstand continuous impact loads and abrasive contact profiles.

Substrates Utilized: Q345B Carbon Steel, 42CrMo, NM400 Wear Plates

Technology Roadmap & Sustainable Manufacturing

Driving efficiency and environmental safety through strategic investments in green technology and automated production systems.

Strategic Growth Plan

Our development focus centers on expanding clean technology infrastructure and automated metal finishing systems. Our research team targets zero-discharge anodising processes to neutralize wastewater profiles and reduce resource consumption.

We are incorporating advanced robotics into our CNC machining cells to increase yield and support manufacturing capabilities for international engineering partners.

"By pairing our 16,000 square meter facility with advanced manufacturing technology, we supply structural components that meet international environmental and safety standards."
Environmental Monitoring and Factory Automation Systems

Our Team and Organizational Culture

Our workforce is the foundation of our manufacturing consistency and engineering capability.

XinYe Operations Management Team

Engineering and Technical Expertise

XinYe employs 130 staff members. Our organization maintains 80 skilled production specialists and 50 personnel dedicated to research and development, quality assurance, engineering, and manufacturing management.

We invest in continuous training and support our engineers in achieving professional certifications. This helps us ensure that our manufacturing processes are executed to high standards from initial design to final delivery.

Certified Production Excellence

XinYe maintains third-party certified management systems to ensure compliance with quality and corporate responsibility standards.

ISO 9001-2015 Certification Quality Management System

ISO 9001:2015

Quality Management Systems

SA8000 Certification Social Accountability Standard

SA8000 Standard

Social Accountability Management

Frequently Asked Questions (FAQ)

Get answers to common questions about our technical capabilities, pricing, lead times, and surface treatment options.

What factors influence the cost of custom anodised aluminium parts?
Pricing is determined by the selected aluminium alloy (e.g., 6000 vs 7000 series), dimensional complexity, batch quantity, and the specified anodising thickness. Standard Type II sulfuric acid anodising is cost-effective for decorative finishes, while Type III hardcoat anodising costs more due to higher voltage and low bath temperature requirements. Contact our engineering team with your drawings for a detailed quotation.
What are your standard lead times for tooling, prototypes, and mass production?
Tooling and sample prototypes are generally delivered within 7 to 10 days, depending on geometry. Mass production runs require 20 to 30 days following sample approval and deposit receipt. Lead times can be adjusted based on project complexity and delivery requirements.
Can you supply material certificates and dimensional test reports?
Yes, we provide full traceability documentation for every batch, including mill certificates, chemical composition analysis, heat-treatment logs, CMM dimensional analysis reports, and surface treatment thickness measurements.
What anodising thicknesses can your surface treatment line support?
We support film thicknesses from 5 microns (typical decorative Type II) up to 100 microns (Type III Hardcoat). Thickness tolerances are controlled within ±2 microns depending on the alloy composition.
What payment terms do you accept for international orders?
Our standard payment terms require a 30% deposit to initiate tooling and production planning, with the remaining 70% balance paid against copies of the shipping documents. We accept payments via bank wire transfer (T/T), Western Union, and PayPal.
How does your factory ensure safe packaging for international shipping?
We use export-grade packaging materials, including custom corrugated boxes, high-density foam inserts, vacuum-sealed bags to prevent oxidation, and reinforced wooden crates for sea transport. Special packaging options are available for fragile or high-finish parts.
What is your warranty policy for manufactured components?
We warrant all materials and workmanship for one year from the date of delivery. If any components are found to deviate from the approved specification sheet due to manufacturing errors, we will replace or rework the affected batch.