Sauer Danfoss Series 90 Axial Piston Pumps
High-performance, variable-displacement pumps built for demanding mobile applications. The Series 90 delivers exceptional power density in a compact, lightweight package — a proven choice for heavy-duty equipment across agriculture, construction, forestry, and mining. Variable displacement is achieved via a parallel axial piston/slipper design with a tiltable swashplate, giving precise control across the full operating range. An integral charge pump handles system replenishing, cooling oil flow, and control fluid supply — all in one unit.
Key Features
- Variable displacement: 55–250 cm³ per revolution
- Maximum working pressure: 450 bar (6,525 psi)
- Rated speeds from 2,300–3,900 rpm depending on frame size
- Theoretical flow output: 215–575 l/min across the range
- Integral charge pump included as standard
- PLUS+1™ compliant controls and sensors
- Wide range of control options available
- Auxiliary mounting pads for complementary hydraulic pump systems
Typical Applications
- Agricultural machinery — harvesters, combines, windrowers
- Construction equipment — pavers, rollers, trenchers
- Forestry machinery
- Material handling equipment
- Mining and specialist equipment
- Turf care machinery
| Frame | Displacement (cm³) | Displacement (in³) | Max. Working Pressure (bar) | Max. Working Pressure (psi) | Rated Speed (rpm) | Flow at Rated Speed - Theoretical (l/min) | Flow at Rated Speed - Theoretical (US gal/min) |
| 055 | 55 | 3.35 | 450 | 6525 | 3900 | 215 | 57 |
| 075 | 75 | 4.59 | 450 | 6525 | 3600 | 270 | 71 |
| 100 | 100 | 6.1 | 450 | 6525 | 3300 | 330 | 87 |
| 130 | 130 | 7.93 | 450 | 6525 | 3100 | 403 | 106 |
| 180 | 180 | 10.98 | 450 | 6525 | 2600 | 468 | 124 |
| 250 | 250 | 15.25 | 450 | 6525 | 2300 | 575 | 160 |
