How Much Does CNC Machining Cost in 2026? A Complete Pricing Guide
# How Much Does CNC Machining Cost in 2026? A Complete Pricing Guide
*Last updated: August 2026 . Reading time: 8 minutes*
If you are an engineer or procurement professional sourcing custom CNC machined parts, the first question on your list is almost always: **how much does CNC machining cost?**
The honest answer: a CNC machined part typically costs between **$15 and $150 per part** for low-volume production, with unit prices dropping to **$2-$20 per part** at quantities of 500+. But that range is so wide it is nearly useless without understanding what drives the price.
This guide breaks down the actual cost structure we use at our factory in Dongguan, China - the same structure used by most CNC shops worldwide - so you can estimate your part cost before you ever send out a quote request.
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## The 5 factors that determine CNC machining cost
### 1. Material cost (typically 15-25% of total)
Material is the most transparent cost. You pay for the raw stock, not the finished part - and CNC machining removes 30-80% of the material as chips.
| Material | Price per kg (2026) | Typical parts |
|----------|-------------------|---------------|
| Aluminum 6061 | $3-5 / kg | Enclosures, brackets, heatsinks |
| Aluminum 7075 | $6-9 / kg | Aerospace components, high-strength parts |
| Stainless 304 | $4-7 / kg | Food, medical, corrosion-resistant parts |
| Stainless 316 | $6-9 / kg | Marine, chemical, pharmaceutical |
| Brass C360 | $8-12 / kg | Fittings, valves, electrical parts |
| Steel 4140 / 1018 | $2-4 / kg | Shafts, gears, structural parts |
| Titanium Ti-6Al-4V | $35-60 / kg | Aerospace, medical implants |
| POM / Delrin | $4-7 / kg | Plastic gears, bushings, insulators |
**Cost-saving tip:** if your design allows material substitution (e.g., 6061 instead of 7075), you can cut 30-50% of the material cost immediately.
### 2. Setup cost (the hidden killer for small batches)
Every job requires programming, tooling, and fixturing. This is a fixed cost, usually **$50-$300 per operation** depending on complexity:
- **Simple 3-axis part:** 1-2 setups, $50-$150 each
- **Complex 3-axis part with tight tolerances:** 2-3 setups
- **5-axis part:** 1 setup but higher programming cost ($200-$400)
- **Tolerance below +/-0.01mm:** often requires a second finishing operation
This is why **unit price drops so sharply with quantity** - the setup cost gets spread across more parts.
### 3. Machining time (typically 40-60% of total)
Machine time is billed at **$60-$120 per hour** in most of the world. In China, the effective shop rate after currency conversion is typically **$25-$45 per hour** for 3-axis work, which is why Chinese manufacturers can undercut Western shops by 30-50% on the same part.
Machining time is driven by:
- **Part complexity:** more features = more tool paths = more time
- **Tolerance:** +/-0.01mm requires slower feed rates and finishing passes
- **Surface finish:** Ra 0.8um needs a finishing pass; Ra 0.4um needs extra polishing time
- **Material hardness:** hardened steel cuts at 1/3 the speed of aluminum
### 4. Tolerance and surface finish
Here is the reality check most suppliers will not give you: **tightening a tolerance from +/-0.1mm to +/-0.01mm can increase cost by 30-60%.**
| Tolerance | Relative cost multiplier | Typical use |
|-----------|------------------------|-------------|
| +/-0.1 mm | 1.0x (baseline) | General fits, cosmetic parts |
| +/-0.05 mm | 1.15x | Standard engineering fits |
| +/-0.02 mm | 1.3x | Precision fits, bearing seats |
| +/-0.01 mm | 1.6x | Precision shafts, mating surfaces |
| +/-0.005 mm | 2.0-2.5x | High-precision, special tooling needed |
**Rule of thumb:** only specify the tightest tolerance where the design actually needs it. A hole that locates a screw does not need +/-0.005mm. This single change can halve your quote.
### 5. Quantity
Quantity affects two things: setup amortization and per-part handling.
| Quantity | Typical unit price (relative) | Setup amortization |
|----------|------------------------------|-------------------|
| 1-10 (prototype) | 5-10x of production price | 100% per part |
| 11-50 | 3-5x | 60-80% per part |
| 51-200 | 1.5-3x | 30-50% per part |
| 200-1000 | 1x (baseline) | 10-20% per part |
| 1000+ | 0.6-0.8x | 5% per part |
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## Real example: what we quoted last month
To make this concrete, here is an actual quote from our shop in June 2026:
**Part:** Aluminum 6061 bracket, 80mm x 50mm x 8mm, 4x M4 tapped holes, 2x dia. 6mm through holes, tolerance +/-0.05mm, surface finish Ra 1.6um, clear anodized.
| Quantity | Unit price |
|----------|-----------|
| 10 pcs | $28.50 / pc |
| 100 pcs | $9.80 / pc |
| 500 pcs | $5.20 / pc |
| 2,000 pcs | $3.60 / pc |
Quote validity: 30 days. Lead time: 10 pcs in 5 days, 500 pcs in 14 days. FOB Shenzhen, air freight available.
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## How to get an accurate quote (and not waste your time)
1. **Send a STEP file** - not just a PDF drawing. STEP is the industry standard for quoting.
2. **Specify material and grade** - "aluminum" is not enough; "6061-T6" is.
3. **Mark critical tolerances** - use GD&T symbols on the drawing; don't leave it to interpretation.
4. **State the quantity** - even a rough range (e.g., "100-200 pcs") helps us pick the right process.
5. **Mention surface treatment** - anodizing, powder coating, passivation all add cost and lead time.
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## The bottom line
- Prototype parts: expect **$25-$100 per part**
- Production parts (100-500 pcs): expect **$3-$20 per part**
- The two biggest levers to reduce cost: **loosen tolerances where possible** and **design for standard stock sizes**
At BQUQ (Dongguan, China), we run 3-axis, 4-axis and 5-axis CNC with **+/-0.005mm full-process control**, and every batch ships with an inspection report. If you send us your STEP file, we will give you a formal quote within **12 hours**.
Email: sc@bquq.com . WhatsApp/WeChat: +86 13713157787 . www.bquq.com
*Keywords: CNC machining cost, CNC machining price, custom CNC parts China, aluminum CNC machining, CNC prototype cost, low volume CNC machining*
Frequently Asked Questions
What is the typical price range for a CNC machined part in 2026?
For low-volume production, a CNC machined part typically costs between $15 and $150 per part. At quantities of 500 or more, unit prices drop to $2-$20 per part, depending on the part's complexity and material.
How much of the total CNC machining cost is material, and can I save money by changing materials?
Material cost typically accounts for 15-25% of the total part cost. You can save 30-50% on material costs by substituting materials, such as using Aluminum 6061 instead of 7075, if your design allows it.
What are the material price differences for common CNC machining materials?
In 2026, prices per kg are: Aluminum 6061 at $3-5, Aluminum 7075 at $6-9, Stainless 304 at $4-7, Stainless 316 at $6-9, Brass C360 at $8-12, Steel 4140/1018 at $2-4, Titanium Ti-6Al-4V at $35-60, and POM/Delrin at $4-7.
Why does the article say the price range is 'nearly useless' without more details?
The article notes that the $15-$150 range is wide because actual cost depends on five key factors: material cost, setup cost, machining time, part complexity, and quantity. Understanding these factors helps you estimate costs before requesting a quote.
