Kerf
Guidelines · Waterjet cutting

Waterjet: no heat, almost any material, up to 50 mm thick

The right tool for thick non-ferrous metals, stone, glass, composites, and anything where heat-affected zones aren't acceptable. Slower per cut than laser or plasma — but the edge quality is hard to beat.

When waterjet beats laser or plasma

Thick aluminium and brass (where laser would either fail or burn), stone and granite worktops, tempered glass, composites and laminates, hardened tool steels. Anywhere the part can't tolerate being heated.

Tolerances

±0.13 mm typical on parts under 200 mm. The jet flares slightly as it exits the underside of thicker stock, so on 25+ mm material the bottom edge can be 0.3–0.5 mm wider than the top. Flag critical faces on your drawing if it matters.

Minimum hole size: 1× material thickness

Waterjet's stream is roughly 0.8 mm wide. The realistic minimum hole is the material thickness — 5 mm holes in 5 mm aluminium are fine. Anything smaller, switch to laser or specify drilling.

File formats

DXF, DWG, SVG, STEP, STP. The full laser file requirements apply identically — waterjet uses the same vector pipeline.

Materials we waterjet

Live from our partner network. Click any material to start a quote.

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More guidelines

Every cutting and secondary-ops service we offer, with the design rules that matter.