Products · Metal parts

CNC-turned contact pins and terminals

Pins, terminals and spacer bushes turned from bar on lathes we also use for core work — one datum, one inspection, a first-article report with the batch.

  • Machined in Humen, Dongguan
  • Held to ±0.01 mm on the drawing
  • Inspected on a Swiss Hexagon CMM

Also searched aspogo pin manufacturer · machined contact terminals · brass turned parts · precision turned spacers · CNC machining supplier China

Brass and copper contact pins turned on a CNC lathe, laid out in a grid graded by length
Photographed in our plant in Humen, Dongguan

A contact pin is a stack of coaxial features — shank, shoulder, engagement tip. Let any one of them drift off the common axis and the pin binds in its sleeve; the fault surfaces in the field instead of at goods-in. We turn these on CNC lathes standing in the same plant as our molds, so bore, shoulder face and tip radius are cut and then measured against a single datum rather than three.

Alloy, plating and engagement force are settled with you at the DFM stage, before any bar is cut. The alloy sets the spring behaviour, the plating sets the wear life, and together they fix the force you can put in front of your own customer.

Where these parts go

  • Spring-loaded pogo pins and charging contacts
  • Terminals, lugs and connector pins
  • Probe contacts for test fixtures
  • Spacer bushes, standoffs and threaded inserts

Specification

The numbers we cut and inspect to

Our standing capability for turned contacts. Alloy, plating and the inspection plan are fixed on your drawing before the first bar is cut.

Turned contact specification — agreed on the drawing before the first cut
Manufacturing routeTurned and milled on CNC centres with drilled and tapped holes; wire-cut and sinker EDM when a die is part of the job
Bar stockBrass, copper alloys, stainless steel, aluminium, titanium
Machine resolution0.001 mm on Yasoda, OKUMA, GF and Makino centres
Drawing tolerance±0.01 mm on the features marked critical
FinishAs machined, bead blast or polish; plating and anodising to your specification
VerificationFirst article measured on the Swiss Hexagon CMM; dimensional report issued with the batch
Order sizeSingle prototypes through to repeating production orders
Paperwork2D/3D drawings, material certificate, first-article inspection report

Figures are our standing capability for this class of work, not a quotation for a specific job. Material, finish and inspection plan are agreed on the drawing before cutting starts.

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Sheet-metal stamping die

Single-station dies for tinplate boxes and drawn panels, proven on our press before shipment.

Next step

Send the drawing, get a price and a process note

2D drawing or 3D model, the alloy and the quantity are enough for a price, a lead time and the points we would change before cutting metal.