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If you are sourcing custom machined parts for the first time, one of the first questions you will ask a machine shop is: what is the minimum order quantity? The short answer is reassuring — in custom precision CNC machining, there is no strict technical minimum. A well-equipped shop can produce a single prototype, a handful of samples, or thousands of production parts. What changes with quantity is not feasibility, but the unit price.
Processes such as injection molding or die casting require dedicated molds and tooling that cost thousands of dollars before the first part is made, which is why those suppliers impose high minimum order quantities. CNC machining works differently: parts are cut directly from standard bar, block, or plate stock using programmed toolpaths. No part-specific hard tooling is required, so making one piece is technically no different from making one hundred.
When a shop quotes an MOQ, it is almost always an economic threshold rather than a technical one. Every order carries fixed costs — CAM programming, workholding setup, material procurement, first-article inspection, and finishing batch charges. On a one-piece order, all of those costs land on that single part. Spread the same fixed costs across 50 or 500 parts, and the unit price drops significantly.
| Quantity Range | Common Name | Typical Purpose |
|---|---|---|
| 1–10 pcs | Prototypes | Design validation, fit and function testing, certification samples |
| 10–100 pcs | Small batch | Pilot runs, bridge production, replacement parts |
| 100–1,000 pcs | Low-volume production | Market entry, niche products, aftermarket supply |
| 1,000+ pcs | Volume production | Ongoing supply with the lowest unit cost |
Most shops that advertise prototype CNC machining or low volume CNC machining are simply telling you their pricing model is optimized for the lower rows of this table — flexible setups, quick-change workholding, and streamlined quoting rather than long automated production lines.
Understanding the fixed-cost components of an order helps you see why unit prices fall with quantity — and where you have room to save:
A single-piece order is entirely reasonable when you need a functional prototype before freezing a design, a replacement part for equipment that is no longer supported, a fit-check sample before committing to a larger batch, or test coupons for material and process validation. In these cases the higher unit price is simply the cost of speed and certainty, and it is almost always cheaper than building tooling for an unproven design.
At ANOK Precision Manufacturing in Shenzhen, China, there is no rigid minimum order quantity. Since 2007, our shop has supported customers from one-off R&D prototypes through small and medium batches to repeat volume production. With more than 50 machining facilities — including 3-axis, 4-axis, and 5-axis CNC milling, nearly 15 CNC turning machines, precision surface grinding, and wire EDM — we match each order to the most efficient process, whether it is a single PEEK prototype or a recurring batch of titanium aerospace components.
Every order, regardless of size, receives the same discipline: free DFM review before quoting, tolerances down to ±0.002 mm where the design requires them, ISO 9001:2015 certified quality control, and in-house surface treatment and assembly for a true one-stop service.
So, what is the minimum order quantity for custom precision machining? Practically speaking: one piece. Send us your 3D CAD model (STEP or IGES) and a drawing with your critical tolerances, material, and finish requirements, and our engineers will return a quote — whether you need a single prototype or a production run of thousands.