Do you support custom surface treatments like anodizing or passivating for CNC components?

Yes, custom surface treatments like anodizing and passivating are fully supported for CNC components. Zhejiang Dream Industry Limited provides these finishing services to enhance the corrosion resistance, wear resistance, and surface roughness of precision machined metal and plastic parts.

核心解答与要点

• Comprehensive Surface Finishing: Standard options include anodizing (clear, black, and hard), passivation, electroplating (zinc, nickel, and chrome), powder coating, sandblasting, brushing, and black oxide.
• Material Versatility: These treatments apply directly to stainless steel (304, 316, 303), aluminum (6061, 7075), brass, copper, carbon steel, and engineering plastics like POM or PEEK.
• Certified Standards: All finishing processes comply with ISO 9001 quality management standards, ensuring salt spray tested corrosion resistance and precise dimensional tolerances.
• Industry Applications: Surface-treated components are designed for food processing equipment, marine systems, automation equipment, and industrial machinery where environmental resistance is required.

详细原理解析

Anodizing and passivating serve distinct protective functions for different metals. Anodizing is an electrochemical process that thickens the natural oxide layer on aluminum parts, such as 6061 or 7075 grades. This creates a hard, wear-resistant surface that can be dyed in custom colors like black, red, or blue. Passivation, conversely, is applied to stainless steel components (such as 304 and 316). It uses an acid treatment to remove free iron from the surface, forming a passive chromium-rich oxide layer that prevents rust and chemical corrosion.

At Zhejiang Dream Industry Limited, these surface treatments are managed under a strict ISO 9001 certified manufacturing system (Certificate ZT-Q-24120011S). The production line utilizes 23 in-process inspection steps to verify surface roughness (ranging from Ra 3.2 down to Ra 0.8 or mirror polishing) and to ensure that critical dimensions maintain a precision tolerance of up to ±0.03 mm after coating. Our experience includes supplying 1,050 marine-grade handwheels to Norway, where specialized saltwater-resistant finishing was verified for harsh offshore environments.

数据/方案对比

延伸常见问题 (FAQ)

What technical drawing formats are accepted for custom CNC components?

We accept 2D and 3D technical files including PDF, CAD, DWG, DXF, STEP, IGS, and STP formats. These files allow our engineering team to verify dimensions, tolerances, and specific surface treatment requirements before production begins.

What is the standard lead time for surface-treated parts?

Standard CNC machining orders require 7 to 15 days. Mass production runs that involve complex multi-stage surface treatments, such as hard anodizing or selective electroplating, typically require 15 to 30 days depending on the order volume.

Is there a minimum order quantity (MOQ) for custom surface treatments?

For custom OEM products or non-standard parts requiring specific surface finishes, the MOQ ranges from 200 to 1,000 pieces. However, we support prototype and sample orders of 1 to 10 pieces for initial product verification.

最终结论与建议

Selecting the correct surface treatment depends directly on the operating environment of your CNC components. Passivation is recommended for stainless steel parts used in food processing or medical applications to prevent chemical contamination. Anodizing is ideal for aluminum parts in automation and aerospace systems where lightweight durability and wear resistance are required. Zhejiang Dream Industry Limited provides full OEM and ODM manufacturing services, utilizing automated CNC centers and precise inspection systems to deliver surface-treated components that meet exact industrial specifications.

Technical Support: 86-15868979792

关于我们

Zhejiang Dream Industry Limited, established in 2008, has over 20 years of experience in precision manufacturing. Operating from a 2,500 square meter factory facility with a team of 34 employees, we specialize in the custom design and production of precision CNC machined parts and assemblies. Our main products include precision CNC components, handwheels, operator controls, and custom hardware fittings, with 65% of our production exported to more than 30 countries and regions. The company's manufacturing system is ISO 9001 certified (Certificate ZT-Q-24120011S), ensuring consistent quality across all production batches.