Passivated And CNC Machined Stainless Steel Parts For Corrosion Resistance

15+ Years of Experience On CNC Machining:

With 15+ years in custom CNC precision machining services, JINGXIN has developed specialized expertise in stainless steel parts—parts that undergo precise CNC machining and passivation treatment to achieve superior corrosion resistance. Located in Dongguan City, China, our professional team adopts rational manufacturing processes, tailored solutions, and fine workmanship to supply high-quality one-stop custom CNC precision machined parts, with a strong focus on passivated stainless steel components alongside parts made of aluminum, iron, and other materials.

We Focus on:

Custom non-standard CNC precision machining services and milling parts, with particular expertise in passivated stainless steel components designed for corrosion resistance. These include fittings, valves, and hydraulic components for chemical processing equipment; transmission parts for marine machinery; and wear-resistant components for food processing lines—all where resistance to rust and chemical erosion is critical. Our product scope also covers electric motor parts, pump parts, sprocket wheels, wear parts on packing machines, and electronic and medicinal pieces.

Our Advantage:

1.Advanced Equipment: We operate a world-class facility equipped with a variety of precision CNC machines (Brother, HAAS, Mazak), vertical milling centers, and precision milling and turning lathes (including 3-axis, 4-axis, and 5-axis models). Our equipment is optimized for machining stainless steel—ensuring smooth surface finishes (a key foundation for effective passivation) and tight tolerances, which enhance the uniformity of the passivation layer and overall corrosion resistance.

2.Complete Machining Capability In-House: We adhere to the ISO 2768-F/M machining standard for tolerances, producing parts in a wide range of sizes and complexities—from small passivated stainless steel valves to large corrosion-resistant structural components. Our in-house capabilities extend beyond machining to include passivation processes (such as nitric acid or citric acid passivation), ensuring consistent quality control from raw material to finished part. Maximum CNC milling capability is detailed in the list below.

3.Raw Material: We guarantee 100% compliance of all materials with RoHS standards and design specifications. For stainless steel (our primary material for corrosion-resistant parts), we select grades like 304, 316, and 430—each chosen for its inherent corrosion resistance, which is further enhanced by our passivation treatment. Material certificates, SGS reports, and passivation layer test reports (verifying corrosion resistance performance) are available upon request. Our material range also includes aluminum, iron, titanium, and engineering plastics (e.g., PEEK, PC, POM); more details are in the list below.

4.Order Quantity: We accept orders starting from 1 unit, supporting both short-run precision CNC milling/turning and large-volume production—whether you need a small batch of custom passivated stainless steel fittings or mass-produced corrosion-resistant components.

5.Quick Turnaround: We provide quotes within hours and fast delivery in days, backed by a skilled and professional R&D team. Even for parts requiring passivation (an additional step to boost corrosion resistance), we streamline workflows to avoid delays.

6.Our Customers: Our customers are from the EU and North America, many operating in industries like chemical processing, marine engineering, and food production—sectors where passivated stainless steel parts with reliable corrosion resistance are essential.

Quality Assurance:

What we do to ensure you receive high-quality parts from JINGXIN: We declare that we will be responsible for our precision machined parts at all times, especially for passivated stainless steel components where corrosion resistance is critical.

1.100% inspection before shipping: For passivated stainless steel parts, we conduct specialized tests—including salt spray testing (to verify corrosion resistance) and passivation layer thickness checks. An inspection report for each precision CNC-machined part (with detailed data on passivation performance for stainless steel components) is available. We implement ISO quality control throughout production, from stainless steel material inspection to passivation process monitoring.

2.Since 2016, we have served Volvo Auto Corp as an approved precision CNC milling company in China (supplying high-precision auto parts), and we also have a proven track record in supplying passivated stainless steel parts to EU-based chemical equipment manufacturers—with no complaints regarding corrosion resistance to date.

3.In case any precision machined part (including passivated stainless steel components) is outside tolerance or fails to meet your corrosion resistance requirements, we will remake and deliver them as quickly as possible, 100% free of charge.

4.Over the years, JINGXIN has manufactured thousands of precision CNC-machined components, including countless passivated stainless steel parts for customers worldwide. The 99.9% satisfaction feedback—particularly regarding the long-term corrosion resistance of our passivated stainless steel components—drives us to continuously improve and meet even stricter quality demands.