ISO 9001 & ISO 13485 Certified Tangxia, Dongguan · China

Electronics & Instrument Components

Small precision parts, contacts, pins and hardware — where the challenge is handling and consistency, not size.

Electronics components look like the easy jobs. They are small, the material is usually free-cutting, and the features are simple. In practice the difficulty is elsewhere: holding a tolerance on something too small to grip comfortably, and doing it the same way a million times.

That is a Swiss-type and automatic-lathe problem more often than a CNC problem, and it is where our mix of machines helps — the same part can be quoted on three different processes, and we will tell you which one we would run.

Typical Electronics Components

Pins & terminalsStraight, stepped and knurled pins, often in brass.
ContactsTurned contact bodies with tight concentricity.
Connector hardwareShells, ferrules, strain-relief parts and coupling nuts.
Sensor housingsSmall turned bodies for instruments and probes.
Spacers & standoffsPrecision spacers with parallel faces.
Screws, nuts & insertsMiniature threaded hardware for assemblies.

Capabilities for Electronics Work

Machining tolerance±0.01 mm standard
Surface roughnessRa 1.6
Typical processesSwiss-type turning for slender parts, automatic lathes for volume, CNC turning for complex geometry
MaterialsBrass C3604 / H62 / H59, copper, stainless 303/304/316, aluminum, engineering plastics
Surface finishingSandblasting, anodizing, blackening, zinc & nickel plating, polishing, passivation, electro-coating, PVD
VolumeFrom 5-piece prototypes to 1,000,000+ simple parts per month
RecordsDimensional report, first article inspection (FAI), material certificate

Two things worth saying early

Tell us the plating specification. A parts’ final dimensions are not always the dimensions after plating. If a diameter is functional — it has to fit a bore or a socket — say so, and we will work to a pre-plate dimension that lands correctly afterwards.

Tell us how the part is handled. Turned parts arrive with a small burr unless something removes it. If the part goes into an automated assembly machine, or a pick-and-place, the burr specification matters more than the tolerance on a drawing that has neither. We deburr as standard; if you need a specific edge condition, describe it.

Aspect ratio, again. If the part is long relative to its diameter — a pin, a needle, a slender terminal — mention it. Past roughly 3–4:1 with a tight tolerance, Swiss-type turning holds accuracy that ordinary turning loses to deflection.

Electronics Components — Common Questions

How small can you machine?
It depends on the geometry rather than a single number — we work from Ø1 mm bar stock. Slender parts are the specialty of Swiss-type turning, which supports the bar close to the tool and resists deflection.
Can you machine parts for automated assembly?
Yes, and it is worth saying so at enquiry stage. Parts destined for automated handling usually need a defined edge condition and a consistent orientation feature; describe the requirement and we will quote to it.
Do you supply parts plated?
Plating and finishing are arranged as part of the job — sandblasting, anodizing, blackening, zinc and nickel plating, passivation, polishing, electro-coating and PVD. Tell us the specification, and tell us which dimensions are functional so we can account for coating thickness.
What is the MOQ?
100 pcs per part number as standard, with prototypes accepted from 5–20 pcs.
Have a part drawing? Get a quote within 24 hours. Send a STEP, DWG, DXF or PDF file — or post us a sample. You will hear back from the engineers who will actually make the part. Request a Quote →