Unit price improves with quantity
When 20, 50 or 100 pieces share the same setup and program, the fixed cost per part becomes lower than prototype machining.
Key Pricing Factors
CNC machining price is mainly affected by setup time, machining cycle time, material, tolerance, finish, inspection, packing and quantity.
Repeatability becomes important
Small batches often move into repeat orders. Keeping drawing revision, material, finish and inspection focus consistent helps reduce rework and communication cost.
Not every tolerance should be tight
Applying very tight tolerances to every feature increases machining time and inspection cost. Marking only critical dimensions can improve cost without hurting function.
Sample vs Small Batch vs Large Batch
| Quantity type | Typical purpose | Price behavior |
|---|---|---|
| Sample / prototype | Fit check, function test, design validation | Highest unit price because setup and review cost are spread across very few parts. |
| Small batch | Bridge production, equipment builds, repeat low-volume demand | Lower unit price than samples because setup is shared, while flexibility remains high. |
| Large batch | Stable drawings and repeat demand | Lower unit price is possible when cycle time, fixtures, material yield and inspection plan are stable. |
What to Send for a Clearer Price
- Provide prototype quantity and expected repeat quantity.
- Confirm whether the same drawing revision will be used later.
- Mark critical dimensions and general tolerances separately.
- Tell us whether parts need inspection reports.
- Confirm packing requirements for repeat production.
Related Pages
Need Quantity-Based Pricing?
Send drawings and quantity tiers such as 1 pc, 10 pcs, 50 pcs and 200 pcs. XHR can review the machining process and quote based on practical production needs.