CNC Machining Cost Estimation — Complete Breakdown

How CNC machining costs are calculated: machine time, material, setup, complexity. Get accurate quotes with real pricing examples.

CNC Machining Cost Structure

CNC machining costs break down into machine time, material, setup, and overhead. Understanding each helps you design parts that are cheaper to produce.

Machine Time Cost

Typical hourly rates (2026):

• 3-Axis CNC Mill: $55-85/hour. China: $25-40/hour.
• 4/5-Axis CNC Mill: $80-150/hour. China: $35-65/hour.
• CNC Lathe: $50-75/hour. China: $20-35/hour.
• Swiss CNC: $65-100/hour.

China-based shops offer 40-60 percent cost savings for most CNC projects, including shipping.

Material Cost

• Aluminum 6061: ~$3/kg
• Steel 1018: ~$1.50/kg
• Stainless Steel 304: ~$4.50/kg
• Brass C360: ~$8/kg
• PEEK: ~$60/kg
• Delrin (POM): ~$5/kg

Setup Costs

Simple part, 3-axis: $100-250. Complex part, 5-axis: $300-800. Multi-operation with EDM: $500-1500.

Part Complexity Factors

• Tight Tolerances (±0.01 mm): +30-50% cost
• Thin Walls (under 0.5 mm): +15-30% cost
• Deep Pockets (over 3x tool diameter): +20-40% cost

How to Get Lower Quotes

• Specify tolerances only where functionally needed
• Avoid sharp internal corners (use radii)
• Design with standard tool sizes in mind
• Consolidate multiple parts into one machined component
• Consider China-based manufacturing for cost-sensitive projects