Explore our main capabilities and product series, spanning across deep drawing, hot forging, high-pressure die casting, and multi-axis CNC machining, all backed by certified advanced surface engineering.
An in-depth analysis of surface modification, wear mitigation, and industrial procurement transformations in modern metallurgy.
Surface degradation remains a persistent failure mode across critical applications in aerospace, automation, marine defense, and heavy manufacturing. To counter aggressive environmental degradation, engineers increasingly turn to Hard Clear Anodizing, chemically classified under the MIL-A-8625 Type III specification. Unlike conventional decorative Type II anodizing, Type III hard anodizing is executed at sub-zero temperatures (typically between 0°C to -5°C) with elevated current densities. This specialized electrochemical environment encourages rapid oxide film development, yielding a high-density, low-porosity ceramic barrier layer composed predominantly of amorphous aluminum oxide ($Al_2O_3$) integrated natively into the aluminum substrate.
A notable evolution in the surface finish sector is the transition toward sustainable sealing technologies and chromium-free chemistries. Global regulatory directives such as REACH and RoHS have prompted advanced factories like Ningbo Jiangbei XinYe Metal Works to refine their post-anodic hydrothermal sealing processes. Standard nickel acetate and hexavalent chromium baths are being replaced with hot deionized water sealing or low-temperature trivalent chromium processes. This change guarantees environmental compliance without compromising the critical salt spray corrosion resistance limits, which frequently exceed 1000 hours under ASTM B117 standards.
“The fundamental rule of Type III Hard Anodizing: Buildup vs. Penetration. The process builds up 50% on the exterior dimensions and penetrates 50% into the substrate. Precision engineering requires that pre-machining dimensional tolerances compensate accurately for this micro-scale growth layer, especially on mating threads and aerospace bores.”
Globally, the commercial demand for hard clear coatings is expanding rapidly due to the growth of electric vehicle (EV) powertrains, hydrogen fuel cell structures, and localized medical sterilization devices. The EV industry requires lightweight structures that have high dielectric insulation properties and thermal dissipation control. Clear hard coating provides a clean cosmetic appearance while maintaining structural hardness (typically 60-70 Rockwell C) and high electrical resistance, eliminating the risk of electrical grounding in high-voltage battery cell casings.
Founded in 1996 as a family business, Ningbo Jiangbei XinYe Metal Works Co., Ltd. has developed into an owner-managed SME corporation specializing in custom metal forming, precision machining, and specialized surface finishes. Located in the Ningbo Jiangbei Industrial Zone, our facility is situated in one of China's premier advanced manufacturing hubs.
Our facility is located within a 3-hour high-speed train connection from Shanghai International Airport and near the Port of Ningbo-Zhoushan, the world's busiest container port. This proximity gives our global clients a significant logistics advantage, reducing transit times for raw material procurement and bulk ocean freight shipping.
Currently, the company operates a total area of 16,000 square meters of dedicated production floor, with an additional 11,000 square meters prepared for future expansions. Our workforce of 130 employees includes 80 production specialists and 50 dedicated personnel in product development, quality control, structural engineering, and supply chain management.
How we address global supply chain risks with vertically integrated manufacturing and flexible capacity scheduling.
Modern global procurement requires more than just manufacturing capabilities; it demands supply chain resilience, transparency, and agility. Ningbo Jiangbei XinYe Metal Works addresses these needs through the integration of Industry 4.0 production tracking and a fully vertical supply chain. By managing critical manufacturing steps—including tool engineering, hot forging, high-pressure casting, precision multi-axis CNC machining, and specialized surface treatment (such as Hard Clear Anodizing and electropolishing)—entirely under one roof, we eliminate intermediate shipping delays, reduce handling defects, and simplify quality tracking.
Our facility operates on a baseline schedule of 16 hours a day, 6 days a week. However, to accommodate sudden market changes or large projects for global clients, we maintain the logistical capability to transition to a 24/7 continuous operation mode within 30 days. Our site's additional 11,000 square meters of construction land allows us to expand production capacity or install dedicated customer-specific production cells when required.
Our core production equipment is sourced from Japan and Europe to guarantee high geometric accuracy and repeatable performance.
Our forging division handles complex geometries requiring high grain refinement and structural integrity.
Equipped with 4-axis control centers and turning/milling stations to achieve sub-micron tolerances.
Combining primary shaping processes with technical secondary finishing within our factory floor.
Quality is the foundation of our business. Our testing processes are supported by traceable inspection documentation at every stage.
Our quality assurance program starts with strict inspection of incoming materials. Every batch of aluminum alloy, stainless steel, or raw casting stock undergoes chemical composition verification to ensure compliance with international specifications before entering production. We operate under a certified ISO 9001-2015 and SA8000 management system, ensuring both operational quality and compliance with social accountability standards.
Our inspection team documents each process step to ensure traceability. From raw metal validation to final dimensional checks, we provide complete compliance documentation, including material certificates, surface roughness measurements, and final dimension inspection reports.
Chemical composition analysis
3D Coordinate Metrology
High-precision optical profiling
Surface roughness profiling
Mechanical load validation
Geometric boundary verification
Our manufactured parts are widely used in demanding environments that require precise dimensional tolerances and corrosion control.
We manufacture explosive and toxic gas sensor housings, fire detectors, and flame monitoring hardware. These applications require Type III clear anodizing to protect components against acidic and corrosive environments in heavy chemical plants and underground mining.
Materials: Stainless Steel, Aluminum Alloys
Our parts include transmission components and high-strength E-bike control levers and connector tubes. These components require deep fatigue resistance and surface hardness to withstand repeated mechanical loads and outdoor exposure.
Materials: High-Grade Aluminum, Custom Alloys
We supply aviation fuel hydrant pit boxes, turbine inlet ducting, and aerospace transmission assemblies. These applications require compliance with strict metallurgical standards to handle temperature extremes and fuel exposure.
Materials: Aerospace-Grade Aluminum Alloys
These high-wear agricultural components undergo continuous friction and impact. We use structural steel grades and specialized heat treatments to extend the service life of cutter discs and feed rollers in commercial field operations.
Materials: Q345B, 42CrMo, NM400 Wear Plate
Our structured manufacturing process ensures design integrity, repeatable quality, and on-time delivery.
Our engineering team works with clients during the initial stage to review 2D/3D CAD models. We discuss tolerance ranges, mating interfaces, alloy selections, and planned surface treatment thicknesses (buildup vs. penetration ratios) to avoid dimensional issues post-anodizing.
We purchase raw materials accompanied by mill test reports, configure custom tooling, and execute pilot runs. Samples undergo dimensional verification using our Coordinate Measuring Machine (CMM) before shipment for customer evaluation.
We evaluate testing and functional feedback from the client's engineering team. Any necessary adjustments to machining speeds, forging temperatures, or chemical anodizing times are made to finalize the manufacturing specifications.
Upon sample approval, we initiate full-scale production. Quality inspections are conducted at critical stages during forging, CNC machining, and electro-chemical surface coating, with traceability documentation compiled for shipping.
We provide a one-year warranty covering manufacturing defects, starting from the delivery note date. Additionally, we offer a dedicated assembly workshop to supply pre-assembled sub-components, reducing assembly complexity for our customers.
Operating with trust, responsibility, and professional standards to meet international quality requirements.
Trust First: We focus on meeting requirements and supporting customer expectations on delivery schedules.
Responsibility: We manage technical steps carefully to deliver integrated metal fabrication and finishing services.
Professionalism: We focus on continuous training and facility upgrades to support quality improvements.
Our management and social accountability protocols are certified under international standards, facilitating compliance audits for global supply chains.
Our sales, engineering, and logistics teams manage documentation, packaging, and shipping steps for international destinations, including Europe, North America, and Central Asia.
Technical details and commercial terms for procurement managers and engineering design professionals.
Hard clear anodizing under MIL-A-8625 Type III typically targets a thickness between 50μm to 75μm (2.0 mils). The process produces a film that penetrates 50% into the aluminum surface and builds up 50% on the outer dimensions. Engineering drawings should define pre-anodizing dimensions to account for this change, especially on close-tolerance components.
6000-series (such as 6061 and 6082) and 5000-series alloys are well-suited for hard clear anodizing, providing a light, metallic gray appearance. 7000-series and 2000-series alloys can also be processed, but their high copper or zinc content typically limits final coating density and results in a darker, olive-gray finish rather than a clear color.
Our typical lead time for custom sample prototypes is approximately 7 working days, depending on tooling complexity. Mass production runs generally require 20 to 30 days after drawing approval and deposit receipt.
Our pricing is subject to periodic updates based on raw material costs and exchange rates. However, we offer options for price lock commitments on long-term blanket purchase orders (POs) by pre-purchasing raw aluminum ingots.
Yes, we require ongoing minimum order volumes for international contract production runs to cover setup costs, CNC programming, and anodizing bath configurations. Please contact our sales team with your specific requirements.
We provide standard documentation packages, including Certificates of Analysis / Conformance (CoA/CoC), CMM dimensional reports, raw material mill certificates, and export documentation such as Certificates of Origin.
Our standard payment structure requires a 30% deposit in advance via telegraphic transfer (T/T), with the remaining 70% balance paid against the copy of the Bill of Lading (B/L). We also accept Western Union and PayPal.
We guarantee our materials and workmanship for one full year under normal operating conditions. If any structural failure or out-of-tolerance condition occurs, our technical quality team will review the batch tracking files to address and resolve the issue.
Yes. Components treated with Type III hard anodizing are packaged with protective layers—including custom cell separators, bubble wraps, and heavy-duty export boxes—to prevent surface contact during transit.
Shipping fees depend on the selected shipment method (such as ocean freight, air cargo, or express shipping), weight, and volume. We offer FOB, CIF, or DDU delivery terms and can work with your preferred freight forwarding partner.
Comprehensive custom manufacturing solutions for international industrial applications.
XinYe Metal