CLOSE TOLERANCE MACHINING
The part has to be exact. Not close. Exact.
When "Close Enough" Isn't Good Enough
You've got a tolerance that doesn't have room to negotiate — an aerospace component, a nuclear part, an assembly where a few thousandths off means the whole thing gets rejected. You need a shop that treats that tolerance as the whole job, not a detail to hit if convenient. And whether you need one part or a hundred thousand, you need it held the same way every time.
We Don't Hand Off the Hard Ones
A lot of shops will quote the easy tolerance and pass on the tight one. Engineered Mechanical Systems has built its reputation the opposite way — from a watch pin to an aerospace component, whether it's a one-off prototype or a 100,000-part production run, we hold the spec. That's not a slogan; it's why customers who've been turned down elsewhere end up here.
Equipment Built for Precision
Our machine shop is equipped with a variety of very capable milling and turning centers. Below is a small snapshot of their capabilities.
- 6 Vertical Machining Centers (Mazak, Doosan, and Milltronics)
- 2 Horizontal Machining Centers (HNK and G&L)
- 3 Turning Centers (Doosan and Milltronics)
- 4-axis capabilities
- Live OD and face tooling on turning centers, up to 44,000 lbs load capacity
Tell Us What You're Holding to Spec
Send us your tolerances, quantities, and timeline, and we'll tell you straight whether we're the right fit — and what it'll take to get it done.
"Your responsiveness to our needs is outstanding and I do appreciate the service."
— GE Steam Power
Frequently Asked Questions
What tolerances can you actually hold?
Down to ±0.0005" depending on the material and part geometry — tell us your spec and we'll confirm if it's achievable.
Do you machine one-off prototypes or only production runs?
Both. We regularly run single prototype parts and production runs up to 100,000 units on the same equipment.
What materials can you machine?
Most metals and plastics, including aerospace alloys, stainless, and specialty materials — ask if you don't see yours listed.
How fast can you turn around a machined part?
Depends on complexity and quantity, but we'll give you a real timeline on your quote, not a generic estimate.