OEM Dark Bronze Anodized Factory & Factories

Precision Metal Fabrication, Advanced Electrochemical Surface Finishes & Global Engineering Solutions

Enterprise Profile

Ningbo Jiangbei XinYe Metal Works Co., Ltd.

Ningbo Jiangbei XinYe Metal Works Co., Ltd. was founded in 1996 as a family business and remains an owner-managed SME corporation today. Located in the Ningbo Jiangbei Industrial Zone, our manufacturing facility sits strategically within a three-hour transit radius from the Shanghai International Airport via the Chinese high-speed rail network.

Spanning 16,000 square meters of production floor space alongside an additional 11,000 square meters of built construction, we maintain a dedicated workforce of 130 highly specialized employees. This includes 80 production line experts and 50 dedicated personnel specialized in product development, engineering, quality control, and global supply management.

Ningbo Jiangbei XinYe Metal Works Facility
Core Focus

Who We Are

Our customers value our strict adherence to international quality standards as well as our focus on manufacturing innovation.

We provide professional manufacturing services, including:

  • High-tolerance CNC machining
  • Aluminum alloy hot forging
  • Wax die stainless steel casting
  • Precision extrusion and stamping
  • Dark Bronze Anodizing & Electrochemical finishing
Contact Our Engineers
1996
Established
16,000㎡
Production Area
130+
Industry Specialists

Technical Specification: OEM Dark Bronze Anodized Finishing

The Electrochemical Process

Dark bronze anodizing is an electrochemical process that converts the aluminum metal surface into a durable, anodic oxide finish. By submerging the aluminum component in an acid electrolyte bath and passing an electrical current through it, we create controlled micropores on the surface. These pores are then electrochemically colored with inorganic metallic salts (typically tin or cobalt) to achieve a deep, rich, UV-stable dark bronze shade before the structure is hermetically sealed.

China Factory OEM Advantages

Partnering with China-based anodizing factories like XinYe offers strategic advantages. Our integrated production lines allow us to transition components from hot forging or stamping directly to anodizing baths without inter-facility shipping. This eliminates surface oxidation risks and reduces lead times. Furthermore, specialized local supply chains in Ningbo allow us to secure raw materials at competitive rates while meeting international environmental regulations.

Industry Growth & Architectural Trends

Global architectural and industrial sectors are shifting away from painted and PVDF-coated surfaces toward authentic metallic textures. Dark bronze anodized components are highly sought after due to their resistance to chalking, fading, and scratching. Additionally, anodized aluminum is 100% recyclable, aligning with modern green building standards (LEED) and environmental regulations worldwide.

Industrial Capabilities & Manufacturing Technologies

Our scope of competencies has grown alongside our customers' requirements and our commitment to technical development. Today, we offer integrated services spanning product engineering, tooling design, bulk manufacturing, surface finish treatment, and global logistics management.

CNC Machining

High-precision multi-axis milling and turning centers capable of holding tolerances down to 0.001mm.

Aluminum Forging

Friction press lines from 300 to 1000 tons designed for high-density, structural structural components.

Lost Wax Casting

Investment casting processes designed for complex structural parts in stainless steel and specialty alloys.

Stamping & Extrusion

Complete stamping and deep draw configurations for steel, copper, plastic, and aluminum alloys.

Advanced Anodizing & E-Polish

Electrochemical polishing and specialty anodizing lines, offering dark bronze, clear, and black hardcoat options that meet ISO and MIL-spec standards.

Markets Served & Real-World Applications

Industrial Products & Enclosures

Fire and gas safety detection systems for oil & gas and mining industries. Products include flame sensors, toxic gas enclosures, and hydrant pit box kits.

Aerospace & Automotive

Turbine inlets, transmission parts, hinge brackets, and high-performance components for electric vehicles (connectors, tubes, and levers).

Food Processing & Appliances

Precision parts for tabletop cooking stoves and pressurized cream whippers, requiring food-grade surface safety and compliance.

Manufacturing Equipment & Strict Quality Control

1. Machinery Infrastructure

Our core production equipment is imported from Japan to ensure consistent dimensional accuracy. Production capabilities include:

  • Friction press machinery: 300 to 1000 tons
  • Column hydraulic presses: 100 to 630 tons
  • Punching presses: 5 to 250 tons
  • CNC machining centers with 4-axis control
  • High-speed CNC turning and milling stations

2. Quality Control & Testing

Quality is build directly into our processes. We maintain strict control from raw material entry through final packaging. Our testing facilities include:

  • GNR Spectrum Analyzers for material alloy verification
  • 3D Coordinate Measuring Machines (CMM) for layout checks
  • Video measuring systems & surface roughness profile testing
  • Spring tension/compression testing systems

3. Global Standards Compliance

Ningbo Jiangbei XinYe Metal Works Co., Ltd. is certified to ISO 9001:2015 and SA8000 standards. These certifications ensure that both our manufacturing processes and labor environments meet international standards.

Testing & Inspection Equipment Gallery

GNR Spectrum Analyzer

GNR Spectrum Analyzer

Used to verify chemical composition and alloy identification of incoming raw material lots.

CMM Inspection Machine

CMM Inspection Machine

Provides 3D coordinate dimensional measurements to ensure conformance to design tolerances.

Video Measuring System

Video Measuring System

Enables non-contact dimensional inspection of detailed geometries and stampings.

Optical Video Measuring System

Optical Measuring Systems

High-magnification video inspection for analyzing edge conditions and fine details.

Roughness Tester

Roughness Tester

Quantifies surface finish values on machined surfaces and anodized coatings.

Tension/Compression Tester

Tension/Compression Testing

Evaluates mechanical properties, including spring properties and structural yield limits.

Watch Us in Action: Facility & Equipment Video

Our facility video showcases our integrated CNC machining, mechanical stamping, forging, and anodizing lines. Learn how our engineering team coordinates processes from initial blueprint review to final quality inspection.

Operational Capacity

Our standard operations run 16 hours a day, 6 days a week. We can scale to a 24/7 continuous schedule within 30 days when required by high-volume project schedules.

With additional physical space available, we are ready to expand our production lines and install dedicated equipment to support your long-term capacity requirements.

XinYe Staff Team

Enterprise Culture, Certificates & Global Standards

Core Values

Trust: Building reliable partnerships remains our top priority and operational responsibility.

Responsibility: We manage every manufacturing stage with care to provide comprehensive support tailored to our partners' needs.

Professionalism: We focus on technical precision, continuous improvement, and consistent execution across all projects.

XinYe Team Meeting
Industrial Certifications

Our quality management systems are certified to ISO 9001:2015 and SA8000. This framework helps us ensure consistent quality for all components and assemblies we deliver.

ISO Certification Document SA8000 Certificate
Certificates Wall
Facility Action Views

Our production floor uses structured workflows and modern equipment layouts to maintain safety and efficiency.

Our Step-by-Step Production Process

From receipt of initial engineering drawings to final delivery, our workflows are designed to maintain quality and operational efficiency.

Icon Phase 1 01

Order & Custom Inquiry

Submit your custom designs, 3D CAD files, and surface finishing specifications. Our technical engineering team will review requirements, tolerances, and process options.

Icon Phase 2 02

Sample Generation

We generate prototypes using production-grade materials. This stage includes chemical verification and dimensional reports to confirm configuration details.

Sample Check Sample Measurement
Icon Phase 3 03

Evaluation & Approval

Our partners evaluate the physical samples under standard operating conditions. We collect feedback on assembly fit and surface appearance to confirm specifications before mass production.

Client Feedback Loop
Icon Phase 4 04

Bulk Production & Packaging

Upon sample approval, we launch mass production following the agreed schedule. Inspection check-points monitor quality indicators at each step. Finished parts are packed using export-grade materials to prevent damage during transit.

Step 4.1: Mass Production

Work is assigned to production lines based on scheduling plans. Multiple inspection points monitor tolerances throughout production.

Step 4.2: Packaging & Shipping

We choose protective packaging based on product characteristics and prepare export customs documentation.

Icon Phase 5 05

Assembly & Technical Support

We offer a one-year warranty covering manufacturing defects. We also provide product assembly services in our dedicated assembly workshop.

Dedicated Assembly Workshop

Featured Production Equipment & Capabilities

Aluminum Hot Forging Machine

Hot Forging Machine

Large-capacity hot forging equipment designed for complex architectural profiles and structural components.

CNC Machining Centers

CNC Machining Centers

High-precision multi-axis CNC machines for machining profiles, castings, and forgings.

Quality Inspection Equipment

Inspection Lab Units

Measurement instruments used to verify compliance with dimensional, mechanical, and material specifications.

Advanced CNC Turning Center: TIPAS MACHINE h65TMY

Our production floor includes specialized CNC configurations, including the TIPAS Machine h65TMY. This turn-mill system enables single-setup machining of complex configurations, helping to maintain high dimensional accuracy.

  • Integrated Y-axis and live tooling for multi-axis machining.
  • In-machine coordinate measuring to verify critical dimensions during production.
  • Optimized programming interfaces to support complex geometries and high-accuracy requirements.

Technical Demo

Watch our specialized turning equipment process high-tolerance metal components.

Material Control & Quality Inspection Systems

Raw Material Inspection Setup

Incoming raw materials undergo analysis before being released to the production floor.

Source Control & Quality Assurance Program

Raw Material Inspection: We verify all raw materials before production to ensure compliance with material specifications. We check metallurgical properties to verify strength and consistency, which are critical for subsequent forging, machining, or anodizing processes.

In-Process Quality Checks: Production operators check parts at regular intervals. These tests help ensure that critical tolerances are maintained before components proceed to the next manufacturing step.

Final Inspection & Certification: Completed production lots undergo a final inspection, which includes dimensional checks, verification of surface finishes, and coating thickness measurements. We provide documentation package including material certificates, dimensional reports, and compliance statements.

OEM Case Studies & Product Applications

Review examples of our custom metal fabrication projects, showcasing how we integrate machining, forging, and specialized finishes for global partners.

Industrial Components

High-durability aluminum parts for industrial systems, manufactured using our friction forging lines.

Materials: Stainless Steel, Aluminum Alloys

Industrial Forged Component

Automotive Components

Precision suspension and transmission parts for automotive assemblies requiring high fatigue strength and close dimensional tolerances.

Materials: Stainless Steel, Aluminum Alloys

Automotive Forged Part

Aerospace Components

Safety-critical components, including aviation fuel hydrant pit box covers, hinges, and turbine inlet structural parts.

Materials: Stainless Steel, Aluminum Alloys

Aviation Fuel Pit Box Component

Wood Chipper Cutter Disc & Feed Roller

Heavy-duty agricultural machinery components. These parts must withstand high stress and wear during operation.

Materials: Q345B Carbon Steel, 42CrMo Steel, and NM400 Wear-Resistant Steel for the drive shaft assemblies.

Wood Chipper Assembly Parts

3D Product Visualization

We use 3D CAD modeling and rendering software to verify geometries and assembly fits before starting mold production.

CAD/CAM Integrated

Frequently Asked Questions (FAQ)

Find answers to common questions about our custom fabrication services, quality standards, and ordering processes.

What are your prices?
Our pricing varies depending on order volume, material costs, and current market conditions. Please contact us with your specifications, and we will provide a detailed quote.
Do you have a minimum order quantity (MOQ)?
Yes, we require minimum order quantities for international orders. Please reach out to discuss your project requirements, and we will work to accommodate your production volumes.
Can you supply the relevant documentation?
Yes. We provide material certificates, inspection reports, heat treatment logs, certificates of conformance, and export shipping documents as needed.
What is the average lead time?
Typical lead time for samples is approximately 7 days. For production runs, lead times generally range between 20 to 30 days after drawing approval and deposit receipt. We will confirm specific lead times when you place your order.
What kinds of payment methods do you accept?
We accept bank wire transfers (T/T), Western Union, and PayPal. Our standard terms are a 30% deposit in advance, with the remaining 70% balance due upon presentation of the Bill of Lading (B/L) copy.
What is the product warranty?
We stand by the quality of our materials and workmanship. If a manufacturing defect occurs under normal operating conditions, we will work with you to address and resolve the issue.
Do you guarantee safe and secure delivery of products?
Yes. We use robust export packaging, including reinforced crates and custom palettes, to ensure parts are protected during shipping. Special packaging requirements can also be accommodated upon request.
How about the shipping fees?
Shipping fees depend on the delivery method, shipment weight, and destination. Air freight is faster but more costly, while ocean freight is generally the most cost-effective solution for larger shipments. We can provide shipping quotes based on your order details.
What advantages does Dark Bronze Anodizing offer compared to liquid coatings or paint?
Dark bronze anodizing forms an integral layer with the underlying aluminum rather than sitting on top of the surface. This prevents issues like chipping, peeling, or flaking. Additionally, anodized coatings are highly resistant to UV radiation, helping to preserve color stability over time.
Can you match specific dark bronze shades across different production runs?
Yes. By using computer-controlled electrochemical coloring baths and monitoring parameters like chemical concentrations and immersion times, we maintain consistent color matching across production batches. We also verify color consistency using optical colorimeters.

Explore Our Complete Custom Product Range

Browse our custom manufacturing services, including casting, forging, and stamping processes designed to meet your project specifications.