CNC Machined Parts For Superior Corrosion Resistance In 316 Stainless Steel With Electropolishing

15+ Years of Experience On CNC Machining:

With 15+ years in custom CNC precision machining services, JINGXIN has developed specialized expertise in 316 stainless steel processing—leveraging electropolishing to enhance the material’s inherent corrosion resistance, creating reliable CNC machined parts for demanding environments. Located in Dongguan City, China, our professional team adopts rational manufacturing processes, targeted solutions, and meticulous workmanship to supply high-quality one-stop custom CNC precision machined parts, including core 316 stainless steel components with electropolishing, alongside parts made of other stainless steel grades, aluminum, iron, and more.

We Focus on:

Custom non-standard CNC precision machining services & milling parts, with a strong focus on 316 stainless steel components enhanced by electropolishing—ideal for scenarios where superior corrosion resistance is non-negotiable. These include:

• Chemical processing equipment fittings (resisting acid/alkali erosion)

• Marine automation transmission parts (withstanding saltwater corrosion)

• Food and pharmaceutical machinery components (meeting hygiene standards while resisting cleaning agent damage)

• Oil and gas pipeline connectors (withstanding harsh underground or offshore environments)

316 stainless steel’s molybdenum-containing composition provides a base level of corrosion resistance, while electropolishing removes surface impurities and creates a smooth passive layer—further boosting durability in harsh conditions. Our product scope also covers valves, hydraulic components, electric motor 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 CNC machines are optimized for 316 stainless steel—its higher molybdenum content requires stable cutting forces to avoid material deformation, and our rigid equipment ensures tight machining tolerances (down to ±0.005mm) for critical dimensions. We also have in-house electropolishing facilities, which create a uniform, oxide-rich surface layer on 316 stainless steel parts—eliminating micro-abrasions that could lead to corrosion.

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 electropolished 316 stainless steel bushings to large pipeline connectors. Our process integrates CNC machining and electropolishing seamlessly: after machining, parts undergo multi-stage electropolishing to achieve a surface roughness of Ra ≤ 0.2μm, which minimizes the adhesion of corrosive substances and enhances long-term resistance. Maximum CNC milling capability is detailed in the list below.

3.Raw Material: We guarantee 100% compliance of all materials with RoHS standards and your design specifications. For 316 stainless steel (the core material for our corrosion-resistant parts), we source high-purity billets with strict control over molybdenum content (16-18% Mo) to ensure inherent resistance to pitting and crevice corrosion. Electropolishing further enhances this by refining the surface microstructure—making parts less susceptible to rust even in humid or chemical-rich environments. We provide material certificates, SGS reports, and electropolishing performance test reports (including 500-hour salt spray test results) upon request. Our material range also includes steel, aluminum, titanium, and engineering plastics (e.g., PEEK, PC, POM); more details refer to 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 electropolished 316 stainless steel valves or mass-produced marine transmission parts.

5.Quick Turnaround: We provide quotes within hours and fast delivery in days, backed by a skilled and professional R&D team. Even with the added electropolishing step (critical for superior corrosion resistance), we optimize workflows (e.g., scheduling machining and electropolishing in sequence) 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 manufacturing—sectors where 316 stainless steel’s corrosion resistance and electropolishing’s surface protection are essential. They rely on our parts to reduce maintenance costs and extend equipment service life.

Quality Assurance:

What we do to ensure you receive high-quality CNC Precision Machining parts from JINGXIN: We declare here that we will be responsible for our precision machined parts at all times—especially for 316 stainless steel parts with electropolishing, where corrosion resistance directly impacts product reliability.

1.100% inspection before shipping: For electropolished 316 stainless steel parts, we conduct specialized tests—including neutral salt spray testing (to verify corrosion resistance), surface roughness measurement (to confirm electropolish quality), and dimensional checks with coordinate measuring machines (CMM). An inspection shipment report for each piece of precision CNC milling part is available. We implement ISO quality control throughout the whole production process, from 316 stainless steel material incoming checks to final electropolishing inspection.

2.We have served Volvo Auto Corp since 2016 as an approved precision CNC milling company in China (supplying high-precision auto parts), and we also have a 6-year+ track record of providing electropolished 316 stainless steel components to EU-based chemical equipment brands—with no complaints about corrosion resistance or surface quality so far.

3.In case any precision machined part (including 316 stainless steel parts with electropolishing) is outside tolerance, fails to meet corrosion resistance requirements (e.g., failing salt spray tests), or has defective electropolishing, we will remake and deliver them as fast as we can, 100% free from our side.

4.Over the past years, JINGXIN CNC Milling Company has manufactured thousands of pieces of precision CNC machined components for our customers—including tens of thousands of 316 stainless steel parts enhanced by electropolishing. The 99.9% satisfaction feedback (especially regarding the long-term corrosion resistance of our parts in harsh environments) drives us to supply more quality precision machined parts to meet customer's request.

(注:文档部分内容可能由 AI 生成)