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Frequently Asked Questions

The questions buyers ask us most: files, MOQ, lead time, tolerances, inspection and shipping.

What files do I need to send for a quote?

A 2D drawing (PDF, DXF, DWG), a 3D model (STEP/STP, X_T, IGES), or photos of a physical sample. You can attach up to 3 files (8 MB total) in the inquiry form; larger files can be emailed to delicnc.tw@gmail.com. Please include material, quantity and tolerance requirements.

What kind of parts is Swiss-type turning best for?

Small-diameter parts that are long, slender or have many features, such as shafts, pins, connectors and fittings. On a Swiss-type lathe the bar is supported by a guide bushing right next to the tool, so long parts stay stable, and turning, milling, drilling and threading can be finished in one setup.

How is a Swiss-type lathe different from a conventional CNC lathe?

On a Swiss-type (sliding headstock) lathe the bar moves forward through the guide bushing while the tools stay close to the cut. On a conventional fixed-headstock lathe the bar stays in the chuck and the tools travel along it. Swiss-type is the better choice for small, long or complex parts in volume. Fixed-headstock lathes suit larger diameters and short, simple parts. We run Swiss-type machines in our own shop and send fixed-headstock work to partner shops.

Do you make every part in your own factory?

Swiss-type turn-mill parts are made on DELI Precision's own 7 machines. Larger diameters, fixed-headstock turning and surface treatments are done by long-term partner shops. We handle the quotation, schedule and shipping, so you work with one supplier.

How quickly will I receive a quotation?

Within 1 business day after we receive your drawing or sample information, including a DFM (manufacturability) review.

What is your minimum order quantity (MOQ)?

Samples from 1 piece (sample orders of 1–10 pcs are welcome). Bulk production starts from 500 pcs, on the same machine and program as your approved sample.

What are your lead times?

Samples: about 7 days. Bulk production: 15–25 days.

What sizes and tolerances can you machine?

Bar diameter Ø1.0–42.0 mm (round, hex or square bar), tolerances to ±0.01 mm, and threads from M1.0. Swiss-type parts are turned, milled, drilled, threaded and knurled in one setup on our own machines. Larger diameters are made by our partner shops.

Which materials do you work with?

Alloy, free-cutting, carbon, bearing and tool steels; stainless steel (SUS303, 304, 316, 416, 430F, 440C, 630); aluminum (2011, 2017, 6061, 6063, 7075, 5052); copper, brass and bronze; titanium Ti-6Al-4V; and plastics (POM, PTFE, PVC). See the full list on the Services page.

Can you handle surface finishing and heat treatment?

Yes. We coordinate anodizing, nickel / zinc / chrome plating, black oxide, passivation, heat treatment, mirror polishing, centerless grinding and vibration finishing. You deal with one contact and receive one shipment.

How do you control quality?

A full dimensional first-article check before the run continues, hourly in-process patrol sampling with data logging, 2.5D vision measurement, and outgoing sampling inspection (dimensional and visual) before shipment. An inspection report and material certificate are shipped with the goods. Details on the Production & QC page.

Will you sign an NDA?

Yes, an NDA is available on request before you share drawings.

Do you ship internationally?

Yes, we ship worldwide by DHL or FedEx.

Where are you located and when can I reach you?

No. 46, Sec. 7, Huanzhong E. Rd., Dali Dist., Taichung 412, Taiwan. Office hours are Monday–Friday 08:00–17:00 (GMT+8). Phone +886 4-2493-4346, email delicnc.tw@gmail.com.

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Send your drawing or sample. Quote within 1 business day.

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