CNC Machining FAQ

We run 3-, 4- and 5-axis CNC milling, CNC turning, and large gantry milling for parts up to 6 metres long. Capacity covers small precision components through to heavy machined weldments, so a single supplier can handle both the fabrication and the finish machining.

General machining holds ±0.05 mm, with precision features to ±0.01 mm where the drawing requires it. Surface finishes down to Ra 0.8 are achievable. Critical dimensions are verified on a Zeiss CMM and reported in the inspection package.

Carbon and alloy steels, 304/316 stainless, aluminium alloys, cast iron, Hardox wear plate, and common engineering plastics. We advise on machinability and material substitution when a specified grade has long lead time or high cost.

We use Zeiss CMM for precision components, laser trackers for large structures, and calibrated gauges throughout production. First-article inspection is run before the batch, and dimensional reports are issued with the shipment.

STEP, IGES, DXF, DWG, PDF and SolidWorks files are all accepted. If only a sample part or 2D sketch is available, our engineering team can reverse-engineer the geometry and prepare drawings before quotation.

Yes. We weld and stress-relieve the structure, then finish-machine datum faces and bores on the gantry mill in one setup where possible. This keeps the machined features aligned to the welded assembly and avoids stack-up errors.

Simple machined parts ship in 1–2 weeks; complex 5-axis components or large machined weldments usually need 3–6 weeks. Lead time depends on material availability and current capacity and is confirmed at quotation.

There is no fixed minimum for machined components — single prototypes and small batches are accepted. Per-part pricing reflects setup and programming, so larger quantities reduce unit cost. We quote both prototype and production volumes.

Material certificates (EN 10204 3.1), dimensional inspection reports, CMM data for critical features, and surface treatment records are available on request. Third-party inspection can be arranged when included in the order scope.