Connector components
A ring-shaped turned part with slots: bore fit and slot indexing are more critical than the outside diameter.
Process · Turned components
CNC turning services
Turning makes round parts: housings, flanges, rings, rods. We run 16 slide-type CNC lathes and 5 turret lathes, which covers bar work from Ø3 mm up to parts that need a chuck and a steady.
What the job really is
On a turned part the outside diameter is easy and the inside is where the work is. A housing that is round at both ends and oval in the middle will press the stator out of shape; a flange whose sealing face is not square to the bore will leak at one side of the gasket. Both look fine on a bench check.
Tolerance we quote
| Feature | Normal | Achievable on review |
|---|---|---|
| Turned diameter | ±0.02 mm | ±0.01 mm after review |
| Roundness | 0.01 mm | 0.005 mm on a supported bore |
| Coaxiality along a bore | 0.02 mm | 0.01 mm with a steady and a finish pass |
| Face squareness to bore | 0.02 mm | 0.01 mm when faced in the same set-up |
Part families in this process
Each family has its own page with the machining notes and the checks we run before shipping.
Motor housings
A thin-walled cylinder where bore coaxiality and face squareness determine how the rotor fits.
Long connecting rods
A slender tubular rod: straightness, bore alignment at both ends and end threads are the three control points.
Precision flanges
A disc-shaped connector: bolt-hole indexing and the flatness of the sealing face are what the drawing really asks for.
Pen barrels and grips
A long, thin cosmetic part: surface consistency, concentricity and weight distribution decide the feel.
What to send for a quote
- Diameter, length and wall thickness, especially on tubular parts
- Bore and thread specification with the class, if it must fit a mating part
- Whether the part is bar-fed or chucked, which follows from the diameter and length
- Quantity, because bar-fed work becomes much cheaper above a few hundred pieces
Questions we get
At what quantity does bar feeding make sense?
Roughly from a few hundred pieces for a simple part, sooner if the diameter matches bar stock we already hold. Below that the bar set-up time outweighs the saving, and chuck work on a lathe is cheaper.
Can you hold a bore coaxial over a long housing?
Yes, with a steady and a light finish pass, and by measuring at both ends and the middle before the part leaves the fixture. On a thin wall the limit is usually the material moving after the clamp is released, not the lathe.
Send a drawing, get a price within 24 hours
STEP, IGES, DWG, PDF or a dimensioned sketch — plus material, quantity and finishing. We reply with a price and any questions in one message.