What Does Small Batch CNC Machining Actually Cost?

This is the question I hear most often: "I need 10 parts. How much is that going to cost?"

The answer is not a single number. But I can show you how we calculate it, so you understand exactly where your money goes.

At AOOM Technology, we specialize in small batch runs—quantities from 1 to 500 parts. Here's how pricing works.

The Setup Cost

Setup is the biggest factor for small batches. On a 50-part run, setup might account for 40% of the total cost. On a 5-part run, it could be 70%.

Setup includes: programming the CAM, creating tools paths, fixturing design, tooling selection, machine setup, and first-article inspection.

For a simple part on a 3-axis mill, expect setup at $150-$400 depending on complexity. For a complex 5-axis part with custom fixturing, setup can go higher.

Material Costs

We buy material from established suppliers. We don't mark up material much—typically 10-15% over our cost.

For small batches, you pay for the full bar or sheet we cut from. If your part weighs 50 grams but requires a 2 kg block of 6061 aluminum, you pay for the block. There's no way around this on a lathe or mill.

We try to nest parts to reduce waste. We also recommend material substitutions if a cheaper option works for your application.

Machine Time

This is straightforward. Our CNC machines run at shop rates that vary by machine type:

• 3-axis vertical mill: $75-$95/hour
• CNC lathe with live tooling: $85-$110/hour
• 5-axis mill: $120-$150/hour
• Swiss-type lathe: $95-$130/hour

I tell clients: "You don't pay for the machine. You pay for the expertise to run it."

Part Complexity

A simple bushing cut from round bar might take 3 minutes per part. A complex housing with tight tolerances, threaded holes, and multiple setups could take 30 minutes per part.

Complexity affects both setup and per-part cycle time. I always tell clients to send us the CAD file first. We'll look at it and give an honest estimate. No surprises.

Surface Finish and Secondary Operations

If you need anodizing, passivation, plating, or powder coating, those are separate costs. We can arrange it with our trusted finishing partners.

Anodizing small batches: typically $50-$150 minimum charge, then per-part pricing. Threading (if it can't be done in the machine) adds setup for a thread rolling or tapping operation.

How to Save Money on Small Batch CNC

Here's practical advice I've learned from years of quoting projects.

Consolidate parts. If you can combine multiple parts into one design, you reduce the number of setups and operations.

Loosen tolerances where possible. A +/- 0.1 mm tolerance is much cheaper to hold than +/- 0.01 mm. If not every feature is critical, let us know.

Use standard stock sizes. If your part fits in common bar stock diameters, we don't have to order specialty material.

Plan ahead. Lead time affects price. A rush order doubles your risk of premium charges.

Real Example: What 25 Parts Cost

A client recently came to us with a 6061 aluminum bracket. 25 parts. Simple 3-axis mill work.

Setup: $275. Material: $85. Machine time at $85/hour: $340 for 4 hours total. Deburring and inspection: $75. Total: $775. Per part: $31.

At 250 parts, setup cost spreads thinner, and per-part price drops to about $12.

Getting Your Quote

Send us your CAD file. We'll review the geometry, tolerances, and material requirements. You'll get a detailed quote within 24 hours, broken down by setup, material, and machine time.

No hidden fees. No surprises. Just honest pricing for quality CNC machining.

Send your CAD files to chen@aoomtech.com for a quote within 24 hours.