CNC Milling vs CNC Turning

The difference between CNC milling and CNC turning, which parts suit each process, and when a part needs both.

CNC turning spins the workpiece against a stationary tool; CNC milling spins the tool against a stationary (or indexed) workpiece. The shape of your part largely decides which one fits.

CNC turning: round parts

Shafts, axles, pins, bushings, spacers, rings and threaded parts. Turning is fast and economical for anything that is mostly round.

CNC milling: prismatic parts

Blocks, plates, housings, brackets and manifolds with flat faces, pockets and holes. On a 4.5-axis machine several faces can be machined in one setup.

Parts that need both

A hub shell, flange or shaft with flats and cross holes starts on a lathe and finishes on a machining center. Ordering from a shop that does both avoids moving parts between suppliers.

Chi Xin Technology is a CNC machine shop in Nantun District, Taichung, Taiwan, founded in 2022. We run 5+ CNC machines — 4.5-axis CNC machining centers and CNC lathes — and mainly machine aluminum alloys and alloy steel, with a metal tolerance of 0.02 mm. We also offer wire EDM and surface finishing including anodizing, and we export to customers in Europe and North America.

Frequently asked questions

Can you do turning and milling on the same part?

Yes. We turn parts on CNC lathes and add milled features on our 4.5-axis machining centers.

Parts we have machined

Browse custom parts →
CNC machined aluminum hub axle
Hub Axlealuminum
CNC machined aluminum manifold block
Manifold Blockaluminum
CNC machined aluminum hub shell
Hub Shellaluminum
CNC machined aluminum distributor block
Distributor Blockaluminum

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