OEM Coloring Anodizing Manufacturer & Supplier

Precision Electro-Chemical Finishing, Custom Architectural Colors, and Structural Durability Engineered by Ningbo Jiangbei XinYe Metal Works Co., Ltd.

Core Product Portfolio

Precision Engineered Component Fabrication

Explore our high-performance manufacturing solutions engineered to exceed demanding global quality benchmarks.

OEM Aluminum Hot Forging Parts

OEM Aluminum Hot Forging Parts

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OEM CNC Machined Parts

OEM CNC Machined Parts Factory

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Wholesale Aluminum Die Casting Parts

Wholesale Aluminum Die Casting

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China Stamping & Deep Drawn Parts

China Stamping & Deep Drawn Parts

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OEM Lost Wax Casting Parts

OEM Lost Wax Casting Parts

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Anodized Aluminum Extrusion Parts

Anodized Aluminum Hot Forging

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Precision E-polished Parts

Aluminium Die Casting Solutions

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Custom CNC Anodized Components

Precision CNC Components

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Technical Deep Dive

Advanced Coloring Anodizing & Surface Engineering

Anodizing is not merely a superficial coating; it is an electro-chemical transformation that converts the metal surface into a highly durable, corrosion-resistant, and aesthetically versatile anodic oxide finish. At Ningbo Jiangbei XinYe Metal Works Co., Ltd., we combine state-of-the-art chemical baths with computer-controlled temperature and voltage regulations to produce coloring anodizing that meets the tightest tolerances for thickness, hue consistency, and fade-resistance.

The Science of Porous Anodic Alumina

During the sulfuric acid anodizing process (Type II & Type III Hardcoat), a controlled electrical current passes through an acid electrolyte bath where our aluminum alloy workpiece acts as the anode. This reaction forms a microscopic honeycomb pore structure. The diameter of these pores ranges between 10 to 20 nanometers, depending on the current density and chemical concentrations.

It is within these microscopic pores that the coloring magic happens. Our OEM coloring service uses two primary mechanisms to introduce color:

  • Organic Dyeing: Organic dye molecules are adsorbed deep inside the open pore structures. This process provides highly vibrant colors ideal for consumer electronics, automotive interiors, and decorative hardware.
  • Electrolytic Coloring (Two-Step Anodizing): Using metallic salts (such as tin, cobalt, or nickel), we electrochemically deposit metal deposits at the base of the pores. This creates highly stable, UV-resistant bronze, bronze-gold, black, and champagne hues that are impervious to extreme weather, perfect for architectural structures.
Ningbo Jiangbei XinYe Metal Facility
Enterprise Overview

Ningbo Jiangbei XinYe Metal Works Co., Ltd.

Since 1996, bridging the gap between advanced Chinese production capabilities and complex global engineering demands.

1996

Established

16,000㎡

Total Production Area

130

Professional Employees

50+

R&D & Engineering Experts

Founded in 1996 as a highly focused family enterprise, Ningbo Jiangbei XinYe Metal Works Co., Ltd. has developed into an owner-managed SME corporation renowned for its engineering execution. Located within the Ningbo Jiangbei Industrial Zone, our facilities are within a 3-hour commute from Shanghai Pudong International Airport via the high-speed rail network. We occupy 16,000 square meters of high-density production space with another 11,000 square meters currently under development to scale with our customers' growth.

Our workforce of 130 professionals comprises 80 highly skilled production operators and 50 dedicated engineers, quality control specialists, and product development managers. This high ratio of engineering talent to production staff allows us to address difficult OEM/ODM specs and secure structural solutions where typical toll manufacturers fall short.

Industrial Scale

Advanced Production Capabilities

Equipped with heavy-duty machinery and precision systems imported from Japan, we execute complex metal fabrication from start to finish.

Friction Press & Hot Forging Equipment

Aluminum Hot Forging

Friction press machines with capacity from 300 to 1,000 tons. Heavy-duty column hydraulic machines from 100 to 630 tons. High structural strength with minimal porosity.

Precision CNC Machining Centers

Precision CNC Machining

4-axis CNC machining centers, turning centers, and precision milling machines. Achieves tolerances down to 0.001mm for complex geometries.

Stamping & Deep Drawn Lines

Stamping & Deep Drawing

High-speed punch presses from 5 tons to 250 tons. Processing steel, copper, specialty aluminum alloys, and performance engineering plastics.

Watch Our Facility in Action

Our facility operates 16 hours a day, 6 days a week. We maintain the logistics and organizational infrastructure to scale into full 24/7 continuous operations within 30 days of client demand.

Our structural capabilities include lost wax casting, precision cold extrusion, deep drawing, and automated anodizing lines. This complete production flow minimizes transition times and eliminates the quality degradation risks associated with third-party transport.

Zero-Defect Philosophy

Strict Quality Control & Metrology

Quality is the foundation of our business. Certified to ISO 9001:2015 and SA8000 to guarantee compliance with global automotive, aerospace, and medical standards.

GNR Spectrum Analyzer

GNR Spectrum Analyzer

Ensures raw material metallurgical composition matches international standards (6061, 7075, etc.) prior to forging or casting.

CMM Inspection Machine

CMM Inspection

3D Coordinate Measuring Machine (CMM) provides automated validation of dimensional geometry with sub-micron accuracy.

Video Measuring System

Video Measuring System

Non-contact optical dimension inspection for micro-features, delicate profiles, and detailed stamped geometries.

Roughness Tester

Roughness Meter

Quantifies surface finish parameters (Ra, Rz) to ensure proper adhesion properties and compliance with mechanical seal interfaces.

Full Process Traceability & Certification

From the moment raw material enters our factory to the final packaged parts, every step is recorded and traceable. We generate complete documentation packages, including Certificate of Analysis (COA), Certificate of Conformance (COC), coating thickness profiles, and salt spray test sheets (ASTM B117 compliance).

Inspection Phase Method / Instrument Standards Applied Traceability Output
Raw Material Verification GNR Spectrograph, Ultrasonic Flaw Detector ASTM, EN, JIS Material Standards Mill Test Certificate (MTC), Chemistry Log
In-Process Control SPC Data Analysis, Air Gages, Visual Comparators ISO 2859 Sampling Plans In-process Inspection Reports, Control Charts
Surface Finishing (Anodizing) Eddy Current Thickness Gage, Colorimeters MIL-A-8625 Type II & III, ISO 7599 Anodic Coating Thickness & Color Conformity File
Final Audit CMM, Tension/Compression Testing Client Drawing Specs, Zero-defect Audit Dimensional Inspection Report, FAI (First Article)
Supply Chain Growth

China Factory Supply Chain & Ningbo Location Advantages

Ningbo is one of the world's premier manufacturing and shipping hubs. By positioning our primary manufacturing plant within the Ningbo Jiangbei Industrial Zone, XinYe Metal capitalizes on localized supply chains that directly translate into cost savings, logistics flexibility, and compressed lead times for our global clients.

Proximity to Ningbo-Zhoushan Port

Located near the world's busiest port by cargo tonnage, we provide swift sea freight consolidation. This minimizes overland transport costs and reduces lead times from factory floor to vessel departure.

Clustered Industrial Ecosystem

The Yangtze River Delta region contains the densest network of aluminum smelters, extrusion die makers, precision tooling providers, and chemical suppliers globally. This enables rapid procurement of specialized alloys and tooling components.

Scalability & Risk Mitigation

With an additional 11,000 square meters of construction space ready for deployment, we scale production volume to match seasonal peaks. Our dual-shift structure allows us to handle sudden increases in volume without quality degradation.

Proven Engineering Case Studies

High-Performance Applications across Critical Fields

Our components are engineered for demanding environments, including aerospace structures, gas safety systems, and cleanroom medical hardware.

Industrial Components Hot Forged

Heavy Machinery & Safety Sensors

Fire and toxic gas detection devices, flame sensors, and explosion-proof housings engineered for mining, oil, and gas environments.

Automotive Parts E-bike

E-Bike & Automotive Components

High-tolerance structural transmission components, motor brackets, brake levers, and anodized connector systems for micro-mobility.

Aerospace Fuel Hydrant Box

Aerospace Fuel Hydrant Pit Box

High-strength safety hydrant boxes, heavy hinges, and fuel transmission housings designed to withstand mechanical stress and chemical exposure.

Wood Chipper Cutter Disc

Cutter Discs & Feed Rollers

Wood chipper crushing systems built with Q345B and 42CrMo materials, heat-treated to resist impact fatigue.

Advanced Technology Spotlight

High-Precision Machinery: TIPAS MACHINE h65TMY

Combining CNC turn-mill multitasking centers with 4-axis control to produce high-tolerance mechanical interfaces in a single operation.

Single-Setup Precision Engineering

By using the TIPAS MACHINE h65TMY turn-mill center alongside our primary 4-axis CNC machines, we eliminate error accumulation from multiple setups. This system enables turning, cross-drilling, keyway milling, and engraving in a single automated process.

This capability is particularly beneficial for aluminum components destined for coloring anodizing. Minimizing manual tool handling prevents surface scratches and micro-dents that can become visible during the anodizing process.

Values & Compliance

E-E-A-T: Trust, Responsibility, and Professionalism

Adhering to strict international trade, labor, and environmental guidelines.

Our Core Values

  • Trust: Exceeding expectations through technical execution, prompt communication, and delivery validation.
  • Responsibility: Providing manufacturing solutions that respect client intellectual property (IP protection), employee welfare, and ecological sustainability.
  • Professionalism: Investing in continuous employee development, process optimization, and advanced engineering systems.

SA8000 & ISO Compliance

We believe that high-quality surface treatments require robust environmental controls. Our automated anodizing chemical lines conform to modern environmental requirements. Our waste processing systems neutralize sulfuric acid and safely recover heavy metal salts. This ensures that our global partners are protected against regulatory, trade, and environmental compliance risks.

XinYe Metal Engineering Team
Factory Workshop
Production Facility
Manufacturing Line
Precision Metal Parts
From Design to Delivery

End-to-End Production Process

A structured approach ensures that drawings, tolerances, and surface qualities conform to engineering requirements before bulk production begins.

1

Order Intake & DFM Review

Clients submit their drawings (STEP, IGES, or DWG formats). Our engineering team performs a Design for Manufacturing (DFM) check to confirm tooling requirements, alloy selection, and surface optimization.

2

Sample Tooling & Prototyping

We generate precision samples for physical evaluation. This includes detailed inspection reports (dimensional logs, spectrographic analysis) to ensure full alignment before initiating bulk production.

3

Bulk Production & Surface Finishing

Upon sample approval, parts undergo CNC machining, forging, or casting, followed by coloring anodizing or E-polishing. In-line inspection stations check dimensions and surface quality throughout production.

Engineering Concept Review
Prototyping Setup
Color Anodizing Sample Testing
FAQ Resource Center

Frequently Asked Questions

Find technical answers regarding coloring anodizing, lead times, quality assurance, and our manufacturing capabilities.

What coloring anodizing options do you support?
We provide organic dye coloring (for consumer electronics, indoor applications, and vibrant colors) and inorganic/two-step electrolytic coloring (using metallic salts for bronze, champagne, gold, and black colors). Two-step electrolytic coloring provides excellent UV stability and weathering resistance for outdoor structural and architectural applications.
Which aluminum alloy grades are best suited for coloring anodizing?
The 5xxx (magnesium alloyed) and 6xxx (magnesium-silicon alloyed) series offer excellent anodizing response, producing clear and bright color finishes. The 7xxx series (zinc-alloyed) can also be anodized to high hard-coat standards but may exhibit slight shade variations. We check chemistry using our GNR spectrograph to avoid color variations in bulk production.
What is the standard turnaround time for sample prototypes and mass production?
For initial engineering samples, the average lead time is approximately 7 days. For mass production, standard lead times run between 20 to 30 days from receipt of deposit and final engineering sign-off. If client timelines require acceleration, our management can adapt workflows, utilizing our capacity to scale to 24/7 operating schedules.
How do you verify color consistency across production batches?
We use high-precision spectrophotometers to calculate coordinates in the CIE L*a*b* color space. By maintaining tight control over chemical concentration, bath temperature, immersion time, and current density in our anodizing tanks, we keep color differences (Delta E) within strict tolerances agreed with the customer.
Do you have minimum order quantities (MOQ)?
Yes, international production orders require an ongoing minimum order quantity. However, we support lower quantities during the initial prototyping and validation phases. Please contact our sales team to discuss target specifications and custom production allocations.
What documentation do you provide with shipments?
We provide full documentation, including Certificate of Analysis (COA), Certificate of Conformance (COC), CMM dimensional data reports, coating thickness reports, and necessary export documents (origin certificates, bill of lading, and packaging lists).
What payment methods do you accept?
Our standard payment terms are a 30% advance deposit with the remaining 70% balance settled upon presentation of the Copy of the Bill of Lading (B/L). We accept payments via bank transfer (T/T), Western Union, and PayPal.
How do you guarantee safe delivery for highly sensitive anodized parts?
Color-anodized parts are highly sensitive to surface scratches. We use custom protective films, custom-molded plastic trays, and dividers to prevent metal-on-metal contact. Master shipping cartons are reinforced and palletized to ensure parts arrive in perfect condition at your production facility.
Explore Further Solutions

Featured Custom Metal Work Capabilities

A comprehensive overview of our physical capability portfolio at XinYe Metals.

Stamping & Deep Drawn Parts

Stamping & Deep Drawn

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CNC Machined Part

CNC Machined Part

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Aluminum Hot Forging Parts

Aluminum Hot Forging Parts

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Aluminum Die Casting Parts

Aluminum Die Casting Parts

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Lost Wax Casting Parts

Lost Wax Casting Parts

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Wax Die Stainless Casting

Wax Die Stainless Casting

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Deep Drawn Sheet Metal

Deep Drawn Sheet Metal

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Coloring Anodizing Custom Options

Coloring Anodizing Custom

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