CNC machining sourcing, quick answers
- What is CNC machining?
- CNC machining is a subtractive process where a computer-controlled cutter removes material from a metal or plastic blank to produce a finished part. It includes milling, turning, drilling and grinding.
- What metals can be CNC machined offshore?
- Aluminium 6061 and 7075, mild and tool steels (4140, D2, H13, P20), stainless 304/316/17-4 PH, brass, copper, titanium and Inconel.
- What tolerances does GSN deliver on offshore CNC?
- Standard ±0.1 mm. Tightened features to ±0.01 mm with appropriate machine selection. Sub-micron finishes via reaming, grinding or EDM.
- Is offshore CNC cheaper than Australian CNC?
- Typically 30–60% cheaper landed for medium and high volumes once tooling, freight and duties are included. We model both options for every program.
/ Services / CNC Machining
CNC machining
sourcing.
CNC machining is a subtractive process where a computer-controlled cutter removes material from a metal or plastic blank. We source CNC parts overseas with engineering oversight from Sydney, and the option to drop the job into McIver Engineering locally if that is the right call.
/ Capability
3-, 4- and 5-axis milling.
From simple plate brackets through to complex 5-axis aerospace and medical components. Aluminium, steel, stainless, titanium and engineering plastics. Envelopes up to 2000 × 1000 × 800 mm on linked partners.
Turning & mill-turn.
CNC turning, live-tool mill-turn and Swiss-type for shafts, bushings, fittings, valve bodies and high-precision turned parts down to Ø2 mm.
Finishing & treatments.
Anodising (clear, black, hard, type II/III), zinc and nickel plating, powder coat, passivation, black oxide, heat treatment and laser engraving, managed in-country before shipping.
Quality documentation.
FAIR (first-article inspection report), CMM dimensional reports, material certificates (EN 10204 3.1), surface finish reports and packaging traceability.
/ Further reading
Before you send a drawing, read our guide on Design for Manufacturing (DFM) for Australian mechanical production. For the cost trade-offs, read Offshore vs local CNC, when overseas wins.
Send a drawing.
STEP, IGES or PDF. We come back with cost, lead time and tolerance commentary. See full overseas program.