CNC Machined
Nozzle Holders

All bores (nozzle mount bore, fluid supply bore, and O-ring groove centreline) are machined in a single turning setup without rechucking. The primary bore establishes the rotational datum; all other features reference it. Concentricity ≤ 0.005 mm TIR is verified by CMM measuring the nozzle bore relative to the supply bore centreline.

HXC machines O-ring grooves to AS568 / BS1806 standard geometry for all standard O-ring sizes, or to custom geometry for face seal and Boss-type ports. Critical dimensions: groove width ±0.02 mm, groove depth ±0.02 mm, corner radius per spec. All O-ring groove dimensions are CMM-verified.

Yes — HXC supplies nozzle holder + nozzle matched kits. The nozzle is installed and the assembly is tested for alignment (spray axis concentricity ≤ 0.01 mm) and leak integrity. Assembly kits are bagged individually with a test record.

Flat face seal (metal-to-metal): Ra 0.8 µm, flatness ≤ 0.005 mm. O-ring face seal: Ra 0.8–1.6 µm, flatness ≤ 0.008 mm. For pharmaceutical fill nozzles: Ra 0.4 µm, passivated, no crevices.

Yes — quick-change nozzle holders with bayonet lock, quarter-turn, or cam-lock retention features can be machined. The locking geometry and sealing face are machined in the same setup, ensuring alignment and sealing are maintained through multiple installation cycles. HXC engineers advise on optimal retention geometry during DFM review.

PEEK: for strong acids, alkalis, and solvents — excellent chemical resistance, autoclavable. SUS316L: for moderate chemical service and food/pharma. Hastelloy C276: for the most aggressive chemical environments — available from customer-supplied material. All materials supplied with mill certificates.

Yes — sensor ports (M5, M8 thread + counterbore) for pressure transducers or flow sensors can be machined into the holder body, with all port positions verified by CMM relative to the nozzle bore datum.

Prototype: 6–9 days. Batch: 10–16 days. Assembly kits (with nozzle installed): add 2–3 days.