Hydraulic & Fluid System Components

We machine hydraulic components from 1018/1026 carbon steel, 4130 chrome-moly, 316 stainless steel, and 6061-T6 aluminum. For high-pressure applications (>3000 PSI), steel is preferred. Material selection depends on the fluid media, operating pressure, and environmental conditions.

We machine SAE (UN/UNF), BSP/BSPP (G), BSPT (R/Rc), NPT/NPTF, JIC (37° flare), ORFS (O-ring face seal), and metric parallel (ISO 6149) threads. All threads are gauged with certified plug and ring gauges. We also machine custom thread forms for proprietary fitting designs.

Yes. We machine O-ring grooves to SAE J518 and ISO 6162 (Code 61/62) standards for hydraulic flanges, as well as custom groove geometries for special fittings. Groove dimensions — width, depth, and bottom radius — are held to ±0.05mm and verified with optical comparators.

We hold ±0.003mm on spool-to-bore clearance and ±0.5µm Ra surface finish on spool lands. Spools are cylindrical-ground in-house, and each is lapped to its matching bore with measured clearance documented in the inspection report.

We machine hydraulic manifolds from aluminum and steel bar stock, including all port drilling, tapping, cross-hole deburring, and O-ring groove machining. While we do not assemble complete manifold systems, we supply fully machined and deburred manifolds with all port threads gauged and pressure-tested per customer specifications.

For custom hydraulic fittings and flanges, typical lead time is 3-5 working days for prototypes and 2-3 weeks for production quantities (100-1000 pieces). We offer 24-hour rapid prototyping for emergency breakdown parts. Contact us with your specific quantity and we will provide an accurate lead time.