Micro & Watch Parts Manufacturing (Swiss-Type CNC Turning)

Manufacturing Scope

Micro and watch parts are precision rotary components — often below a millimetre in diameter — used in watch movements, measuring instruments, medical devices, optical assemblies and miniature gearboxes. This category covers 8 families: Micro Shaft, Micro Pin, Stepped Micro Shaft, Threaded Micro Shaft, Pivot Arbor, Knurled Micro Shaft, Bored Micro Shaft and Hex-Head Micro Shaft. We machine them in steel, stainless steel, brass and aluminium, with material chosen for the bearing, wear and magnetic requirements of the application. On the Goodway SW-20 sliding-headstock lathe we turn diameters from ⌀0.8 to 11.5 mm; the guide bushing supports long, slender bodies so parts stay concentric without deflection. Diameter tolerances are typically h5/h6, 6g on micro threads and H7 on bores, with ±0.01 mm targeted on critical features. Alongside the 80 catalogue types, we produce custom dimensions and tolerances directly from your technical drawing (PDF/STEP). The process starts with a quote request including the drawing and quantity.

The defining part here is MIKA-PVT-12 at L/D 18.3 — the slenderness a sliding-head lathe is built for. Lengths across the 80 variants run 6–68 mm, the longest being MIKA-STP-60 at 68 mm, still inside the 207 mm single-setup limit. Operations: 10× thread turning, 10× hex flat milling, 10× axial bore, 10× taper turning, 10× knurling.

The tolerance classes in use are 6g, H7, h5, h6, h7, h9, m6. None of the 80 variants maps onto a DIN or ISO part standard — these geometries come from the application, not from a norm sheet, so every dimension is open to change on your drawing.

Every part is CNC-turned to your drawing — series, small batches and custom turned parts. Send your drawing (PDF/DWG/STEP) for a quote.