Hydac Hydraulics
Hydraulics
Hydac International is one of the world's leading manufacturers of hydraulic components, with operating pressures up to 500 bar, flow rates from 0.5 to 1,000 l/min, and filtration ratings down to 3 μm absolute (Beta‑ratio ≥200 per ISO 16889). From axial-piston pumps and proportional directional control valves to high-pressure bladder accumulators and real-time fluid sensors, Hydac components are engineered and tested to DIN EN ISO 4413, ISO 10771, and EC Machinery Directive 2006/42/EC.
fluidics-equipment.com stocks 759 Hydac products across 10 product families - control blocks, sensors, filtration, pumps, valves, heat exchangers, measuring instruments, fastenings, pump carriers, and ball valves - giving maintenance engineers and OEM procurement teams a single source for verified Hydac originals with full traceability.
Categories
Hydac vs. Bosch Rexroth vs. Parker Hannifin vs. Eaton - technical comparison
| Criterion | Hydac | Bosch Rexroth | Parker Hannifin | Eaton Vickers |
|---|---|---|---|---|
| Max. operating pressure | up to 500 bar | up to 420 bar | up to 414 bar | up to 350 bar |
| Integrated filtration portfolio | Full range, 3-25 μm, ISO 16889 | Limited own-brand filters | Finite/Velcon range | Internormen (separate brand) |
| Condition monitoring sensors | HDA/EDS/FCU, 0-600 bar, IO-Link | HM series, up to 600 bar | SCP series, up to 400 bar | AxisPro, limited IO-Link |
| Heat exchanger / cooling | HKL/PKL/OKL, up to ca. 800 kW | Via Aventics / third party | Caldie/AirBlast series | Limited cooler portfolio |
| Valve sizes (NG) | NG4 - NG32, D03/D05 | NG4 - NG32, D03/D05 | D03 - D10 | D03 - D08 |
| Pump technology | Gear + axial-piston, 0.5-250 cm³/rev | Axial-piston, vane, gear | Vane, piston, gear | Vane + piston primary |
| Norm compliance | ISO 4413, ISO 16889, 2006/42/EC | ISO 4413, CE, ATEX | ISO 4413, SAE, CE | ISO 4413, NFPA, CE |
| System integration depth | Full HPU system, sensors to filtration | Full drive & control systems | Motion & control systems | Power management focus |
Hydac product overview - key series and specifications
| Product family | Key series | Performance / spec | Highlight |
|---|---|---|---|
| Pumps | PGF / ALP / HDP | 0.5-250 cm³/rev, up to 350 bar | Gear & axial-piston, SAE-A/B/C flange |
| Valves | WGVP / WGVE / KPRE | NG4-NG32, up to 420 bar, 0-450 l/min | Proportional, pressure-relief, directional |
| Filtration | RFM / HF / DF series | 3-25 μm, up to 500 bar, to 1,000 l/min | ISO 16889 Beta ≥200, clog indicators |
| Sensors | HDA / EDS / HSI | 0-600 bar, 4-20 mA / IO-Link, IP67/IP69K | Temperature, pressure, level, flow |
| Heat exchangers | HKL / PKL / OKL | Cooling capacity up to ca. 800 kW | Air-oil, water-oil, brazed-plate types |
| Measuring instruments | HMG / ELM / FCU | Pressure to 1,000 bar, particle count ISO 4406 | Portable diagnostic units, data logging |
| Valves/Ball valves | KHM / KHP / KHRM | DN6-DN50, up to 500 bar, BSP/NPT/SAE | Full-bore, stainless steel option available |
| Control blocks | MSB / VB series | Up to 350 bar, D03/D05 porting | Aluminium & steel, custom manifolds |
Typical application areas: Mobile hydraulics and construction machinery (ISO 4413, DIN EN ISO 4413), industrial press and forming technology (2006/42/EC, EN 13849), offshore and marine hydraulics (DNV GL, ISO 10771), power generation and wind turbines (IEC 61400, ISO 4413), automotive manufacturing and assembly lines (ISO 9001, IATF 16949), steel and heavy industry (DIN EN ISO 4413), agriculture and forestry machinery (EN ISO 11684), and fluid power test rigs and laboratory systems (ISO 4406, ISO 16889).
