Engineered to withstand extreme environments. Explore our range of custom cast, forged, and precision machined components.
Chromic Acid Anodising (CAA), recognized under the military standard MIL-A-8625 Type I, represents the pinnacle of surface safety and fatigue-critical protective treatment for aluminum alloys. Unlike sulfuric acid anodizing (Type II), CAA creates a significantly thinner anodic oxide coating (typically 0.5 to 5.0 microns). This ultra-thin film provides exceptional corrosion protection while causing minimal impact on the fatigue limits of high-stress structural parts.
In aerospace applications, aviation fuel hydrant pit boxes, engine transmission casings, and defense equipment, Type I CAA is mandatory because it leaves no corrosive residues in tight joints, blind holes, or complex geometry networks. If chemical residue remains trapped in a component, sulfuric acid could lead to rapid intergranular corrosion. Chromic acid, however, is non-aggressive to aluminum, mitigating structural failure risks.
Global supply chains are navigating tight regulatory frameworks (such as EU REACH, RoHS, and EPA directives). While environmental mandates pressure manufacturers to explore alternatives like Tartaric Sulfuric Acid (TSA) or Boric Sulfuric Acid (BSA), CAA remains the primary solution for safety-critical, high-stress environments. Qualified factories in China like Ningbo Jiangbei XinYe Metal Works Co., Ltd. bridge this demand by integrating advanced chemical filtration, zero-discharge wastewater management, and modern metal fabrication technologies under one roof.
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 facility is within a 3-hour journey from Shanghai International Airport via the high-speed train network.
The company maintains a total production floor area of 16,000 square meters, with an additional 11,000 square meters of construction space. Our total staff comprises 130 employees, including 80 production specialists and 50 experts dedicated to product development, engineering, quality assurance, and senior management.
We provide professionally qualified services in: CNC machining, aluminum alloy forging, wax die stainless casting, extrusion, stamping, and anodizing / E-polish surface treatments. The XINYE team is committed to customer satisfaction, supported by a well-established technology portfolio and manufacturing equipment.
Over time, our capabilities have expanded to align with our customers' quality requirements. From raw metal formation to final surface finishing, we offer complete end-to-end services.
Multi-axis (4-axis control) CNC machining centers and high-precision milling machines. Delivers tolerances down to 0.001mm for high-performance applications.
Hot forging equipment with friction presses ranging from 300 to 1,000 tons. Improves material grain flow structure for safety-critical components.
Chromic Acid Anodising (CAA), Sulfuric Acid Anodising, and electrochemical polishing (E-polish) designed for corrosion resistance and aesthetic durability.
Precision lost-wax investment casting processes for complex structures in stainless steel, carbon steel, and specialized superalloys.
Comprehensive stamping, deep drawing, and extrusion capabilities across steel, copper, aluminum alloys, and custom plastics.
Serving industrial markets in Europe, North America, and Russia across critical sectors including healthcare, automotive, and aviation.
Our engineered solutions are deployed globally in highly regulated industrial applications.
Fire and gas safety detection systems for the oil & gas and mining industries. Products include flame sensors, toxic gas detectors, and hydrant pit box enclosure kits.
Aviation fuel hydrant pit boxes, high-load hinge brackets, turbine inlet assemblies, and structural transmission components.
Drive transmission components, structural chassis parts, and high-strength E-bike components (connectors, tubes, and brake levers).
High-pressure cream whippers, cooking stove components, and specialized equipment parts complying with hygiene and food-contact regulations.
Combining heavy-duty machinery with high flexibility to meet high-volume manufacturing requirements.
Our factory operates on a standard schedule of 16 hours per day, 6 days a week. To support urgent industrial demands, we can scale to 24/7 continuous operations within 30 days.
We invest continuously in our production capacity and facilities. Expanding the production area is supported by available adjacent land, allowing us to build dedicated assembly lines or scale equipment counts for custom projects.
Friction press machines with capacity ranging from 300 to 1,000 tons. Designed to process high-strength structural forgings.
Column hydraulic machines (100 to 630 tons) and punch press machines (5 to 250 tons) suitable for deep drawing and metal forming.
CNC turning and milling centers equipped with 4-axis controllers to shape complex profiles with high precision.
Our quality control system maintains production consistency and part traceability from raw material receipt to final shipment.
Quality is fundamental to our operations. In coordination with our customers, we have established a quality control system supported by traceable records for every process step.
Our facility is certified to ISO 9001:2015 (Quality Management) and SA8000 (Social Accountability) standards. This allows us to ensure consistent quality in both our products and customer service.
To improve our production standards, we focus on maintaining modern manufacturing facilities and providing continuous training for our employees. Our internal quality department utilizes specialized measurement and testing equipment to verify component dimensional accuracy.
Verifies raw material chemical composition.
Verifies 3D geometric tolerances.
Enables non-contact optical measurements.
Measures micro-roughness of surface finishes.
Our team holds over 20 technical model patent certificates. We build trust by delivering custom manufacturing solutions aligned with our customers' technical specifications.
"Always comes first, our priority, our responsibility, to exceed your expectations"
"Taking any action carefully and detailed as the commitment to give a total solution and services based on principles, customers' and employees' needs and desires"
"What we do, what we create, what we give it all with an attitude, dedication and ambition. We always give it all with an improvement"
From primary hot forging to micro-precision CNC machining and custom surface anodizing treatments.
We review customer-provided engineering designs to verify requirements, tolerances, and surface treatments like chromic acid anodising.
We source raw materials, execute primary fabrication, verify dimensions, and issue comprehensive material and dimensional test certificates.
Samples undergo evaluation by the customer's engineering team to confirm alignment with performance specifications before starting mass production.
We schedule production runs, implement in-process checks, verify surface coating thickness, and pack products for export delivery.
We provide a one-year warranty on manufacturing defects, starting from the delivery note date, backed by our technical service team.
Explore real-world applications of our precision metal fabrication and anodizing technologies.
Precision aluminum components for heavy machinery, produced using hot forging and CNC machining.
Material: Stainless Steel, Aluminum Alloy View Details
High-tolerance structural parts designed to meet strict automotive industry specifications.
Material: Stainless Steel, Aluminum Alloy View Details
Aviation fuel hydrant pit boxes, hinge brackets, and turbine inlet components with CAA finish.
Material: Stainless Steel, Aluminum Alloy View Details
Precision cutter discs and feed rollers engineered for agricultural and waste processing machinery.
Material: Q345B, 42CrMo, NM400 for shaft View DetailsPreview our manufacturing process through 3D animations, showcasing precision design and production details.
Detailed answers regarding our production processes, quality certifications, and global shipping policies.
CAA (MIL-A-8625 Type I) creates a thinner coating (typically 0.5 to 5 microns) compared to SAA (Type II), which maintains the fatigue resistance of high-stress aerospace components. Additionally, chromic acid is non-corrosive to aluminum, making it safer for assemblies where electrolyte entrapment in blind holes or joints is a concern.
Our pricing is subject to change based on raw material costs, energy costs, and other market factors. Please contact us with your engineering designs, and we will provide an updated, detailed quotation.
Yes, we require a minimum order quantity for international shipments to maintain production efficiency. For low-volume requirements, please contact our sales team to discuss feasibility or sample runs.
Yes, we provide quality and export documentation, including Certificates of Analysis (COA), Certificates of Conformance (COC), dimensional inspection records, bill of lading, and certificate of origin.
For custom engineering samples, the lead time is approximately 7 days. For bulk production orders, lead time is 20-30 days after receiving the deposit and drawing approvals.
We accept payments via direct bank transfer (T/T), Western Union, and PayPal. Our typical payment terms are a 30% deposit in advance, with the remaining 70% balance paid against the copy of the Bill of Lading (B/L).
We offer a one-year warranty on materials and workmanship under standard operating conditions. Our customer service team handles quality reviews to address any technical concerns.
We use export-grade packaging materials, including custom protective inserts, sealed barrier wraps, and heavy-duty wooden crates, to protect parts from corrosion and physical damage during sea and air transit.
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XinYe Metal
