CNC Machining and 5-Axis Services in Fontana, California

CNC turning and 3, 4 and 5-axis milling in Fontana, California, for precision components, production parts and the custom tooling behind our own robotic cells.
Five-axis CNC mill in the CalWest Manufacturing machining department

Machining capacity

5-axis millDoosan DVF 5000
3-axis and 4-axis millsDoosan DNM 4500, Haas VF-4SS, Haas VF-10
3-axis and 4-axis envelope50.00 in x 22.00 in
5-axis envelope25.00 in x 18.00 in x 16.00 in
Largest part (Haas VF-10)84 in x 32 in x 30 in travels, about 4,000 lb on the table
Arriving September 2026Haas VF-11, 120 in x 40 in x 30 in travels, parts up to 10 ft
LathesDoosan Lynx 2600SY (sub-spindle, Y-axis, live tooling), Haas ST-30
Lathe with live tooling15.00 in diameter x 32.5 in length
InspectionZeiss Spectrum CMM, Keyence WM-C6025 wide-area CMM, Keyence VL 3D scanner
Quality systemAS9100D and ISO 9001 certified
Export controlITAR registered
Lead timeQuoted with every job

Tolerances

Standard tolerance±0.020 in on parts submitted without a drawing

Tighter tolerances available on request.

Our turning and machining department covers 3, 4 and 5-axis milling plus lathe work with live tooling. It supports two kinds of work: precision machined components for customers, and the tooling and fixtures our own automation group needs.

That second use is why the department earns its keep on integration projects. When a robotic cell needs an end-of-arm tool changed mid-commissioning, we machine the new one the same day on the 5-axis instead of waiting on an outside shop.

Milling runs on four vertical machining centers: a Doosan DVF 5000 5-axis, a Doosan DNM 4500, a Haas VF-4SS and a Haas VF-10 with 84 × 32 × 30 in travels and a table rated for about 4,000 lb, which is where long or oversized parts up to 7 ft go. A Haas VF-11, with 120 × 40 × 30 in travels for parts up to 10 ft, arrives at the end of September 2026. Turning runs on a Doosan Lynx 2600SY with sub-spindle, Y-axis and live tooling, and a Haas ST-30. Finished parts are inspected on a Zeiss Spectrum CMM, a Keyence WM-C6025 wide-area CMM and a Keyence VL 3D scanner under our AS9100D quality system.

Machined parts are quoted per piece from their own stock, so one part per file is fine and a quantity change reprices instantly. Setups are charged once per unique part per run, so the per-piece price falls as quantity rises. Threads, press and slip fits, surface finishes and tight tolerances are not read from the model: attach a PDF drawing with the upload and we confirm pricing before any order. ITAR or export-controlled files should not go through the instant quote; email them to sales@calwestmfg.com.

Clear, complete drawings matter here more than anywhere else in the building — call out every critical dimension, tolerance and finish so nothing has to be assumed.

The machine shop is in Fontana, California, in the Inland Empire, and machines for customers across San Bernardino and Riverside counties, Los Angeles and Orange County, with parts shipped across Southern California.

Common questions

What is your machining capacity?

3-axis and 4-axis milling to 50 x 22 inches, 5-axis milling to 25 x 18 x 16 inches, and turning with live tooling to 15 inch diameter by 32.5 inch length. Long or oversized parts up to 7 feet run on the Haas VF-10, with 84 x 32 x 30 inch travels and about 4,000 pounds on the table.

What machines do you run?

Four vertical machining centers: a Doosan DVF 5000 5-axis, a Doosan DNM 4500, a Haas VF-4SS and a Haas VF-10, with a Haas VF-11 (120 x 40 x 30 inch travels) arriving at the end of September 2026. Two lathes: a Doosan Lynx 2600SY with sub-spindle, Y-axis and live tooling, and a Haas ST-30. Parts are inspected on Zeiss and Keyence CMMs and a Keyence 3D scanner.

What tolerance do you hold on machined parts?

Plus or minus 0.020 inch on any part submitted without a drawing. Tighter tolerances, threads, press or slip fits and surface finishes must be called out on a 2D drawing, and tighter callouts add cost.

What should I send for a machining quote?

The 3D model plus a 2D drawing in PDF with every critical dimension, tolerance and finish called out. Anything left unstated has to be assumed, and assumptions cost time in planning.

Do you machine aerospace and defense parts?

Yes. CalWest is AS9100D and ISO 9001:2015 certified and ITAR registered, and the machining department builds the end-of-arm tooling and fixtures for our own robotic cells.

Where is your machine shop?

Fontana, California, in the Inland Empire. We machine for customers across San Bernardino and Riverside counties, Los Angeles and Orange County, and ship across Southern California.

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