There is no fixed minimum order quantity for engineering components. The MOQ depends on the process, how long the machine setup takes, and the smallest lot of raw material the factory can buy. A machined part from bar can start in tens of pieces, while a die-forged part needs a much larger run to justify the die.
Ask any factory to explain its MOQ in terms of these drivers. A clear reason usually means there is room to discuss. A fixed number with no reason usually means the factory does not want small work.
What drives the minimum
- Setup time is the hours spent fixing tools and proving the first piece, and it is spread across the batch.
- Raw material lots matter because mills and stockists sell bar, plate and alloy in minimum weights.
- Tooling such as patterns, dies and fixtures needs a run long enough to justify making it.
- Outside processes such as heat treatment and plating often have their own minimum batch per load.
- Packing and paperwork take the same effort for a small order as for a large one.
How MOQ varies by process
CNC turning and milling from stock bar have the lowest minimums, because setups are short and material is easy to buy. Sand castings sit in the middle, since a pattern is needed but moulding can run small batches. Closed-die forgings and pressure die castings need the largest runs, because the die is expensive and setup is long.
Assemblies such as pumps or valves follow the MOQ of their slowest part. If the body is a casting, the casting MOQ often sets the minimum for the whole product. For process detail, see the article on MOQ for castings and forgings.
How to get a lower MOQ
Offer a blanket order with staggered deliveries. The factory can make one large batch and ship it in parts, or make smaller runs against a firm annual figure.
Use standard materials and finishes where you can. A common steel grade is easier to buy in small quantities than a special alloy.
Accept a higher piece cost for the first batch. Many factories will run a small trial order if they see a credible route to repeat business.
Group parts that share a material or process. If five of your parts use the same bar size and heat treatment, the factory can combine them into one material purchase and one furnace load. That can make small quantities of each part workable.
Do not let MOQ decide quality
A factory that accepts any quantity without question is not always the best choice. Very small orders can end up at the back of the queue, run by less experienced staff between larger jobs. Ask where your batch will sit in the schedule and who will inspect it.
Next step
Send us the drawing and your annual volume and we will tell you what MOQ is realistic. Book a free sourcing review.