Custom High Precision Corrosion Resistant CNC Machined Parts and CNC Turning Parts

Custom precision stainless steel parts are CNC machined or turned components manufactured from stainless steel grades including 303, 304, 316, or 17-4PH. These parts are widely utilized across multiple industries:

• Medical devices
• Food processing equipment
• Automotive systems
• Industrial machinery

Key advantage: Excellent corrosion resistance combined with dimensional stability under tight tolerances.

Project: Food-grade valve component

Material: SUS316

Process: CNC turning + milling + polishing

• Surface roughness requirement: Ra ≤ 0.8 μm
• Tight tolerance: ±0.01 mm

• Reduced cutting speed by 18%
• Used carbide tools with TiAlN coating
• Applied multi-stage polishing

• Surface finish improved from Ra 1.6 to 0.6 μm
• Scrap rate reduced by 27%
• Delivery stability improved (on-time rate 98%)

• Standard CNC: ±0.05 mm
• Precision parts: ±0.01 mm or tighter

Before choosing a supplier, confirm they offer:

• 3/4/5-axis CNC machining
• CNC turning (for shafts & round parts)
• Surface treatment (polishing, passivation)
• Inspection equipment (CMM, projector)

• Solution annealing (for corrosion resistance)
• Passivation (removes free iron)
• Electropolishing (ultra-smooth surface)

Conclusion: Choose stainless steel for durability and corrosion resistance, aluminum for lightweight applications and cost efficiency.

Before placing an order, request the following documentation:

• Material certificate (Mill Test Report)
• Dimensional inspection report
• Surface roughness data
• Real application case or samples
• Production photos or videos