
Sauer-Danfoss Series 20 — hydraulic pump / motor
Sauer-Danfoss Series 20 is a line of swashplate axial piston hydraulic pumps and motors with variable displacement from 33 to 119 cm³ for closed-circuit operation. The pumps are rated at 210 bar nominal pressure and up to 350 bar maximum. The series is widely used in hydrostatic drives of mobile and special-purpose equipment requiring smooth reversing and stepless speed control.
Series 20 models
The series includes pumps and motors with displacements from 33 to 119 cm³ in various configurations.
- Sauer-Danfoss PV20 / SPV20 / SPV2/033 / SMF2/033 / M20 / MF20
- Sauer-Danfoss PV21 / PVD21 / SPV21 / SPV2/052 / SMF2/052 / M21 / MF21
- Sauer-Danfoss PV22 / SPV22 / PVD22 / SPV2/070 / SMF2/070 / M22 / MF22
- Sauer-Danfoss PV23 / SPV23 / PVD23 / SPV2/089 / SMF2/089 / M23 / MF23
- Sauer-Danfoss PV24 / SPV2/119 / SMF2/119
All series are available in the Sauer-Danfoss hydraulics section.
Advantages Series 20
- Wide displacement range from 33 to 119 cm³ allows selecting the right size for a specific hydraulic system power requirement
- Swashplate design provides smooth stepless control and flow reversing without additional valving
- Rated pressure of 210 bar and peak load up to 350 bar suit heavy cyclic duty applications
- Unified construction across models in the series simplifies interchangeability and spare parts stock management
Applications Sauer-Danfoss Series 20
Sauer-Danfoss Series 20 pumps and motors are the primary hydraulic drive in concrete mixer trucks and concrete pumps from manufacturers such as Schwing, Liebherr, Putzmeister, and Zoomlion. The series is also used in excavators, road rollers, asphalt pavers, and crawler cranes from Caterpillar, Komatsu, and Volvo CE.
Parts and repair Series 20
Quality spare parts are available for the Sauer-Danfoss Series 20: cylinder blocks, shafts, pistons with slippers, valve plates, slipper retainer plates, seals, and repair kits. Parts are identified using equipment catalogues and hydraulic diagrams, ensuring accurate selection without errors.
Aspect Plus provides professional repair of Sauer-Danfoss Series 20 hydraulic pumps and motors: fault diagnosis, replacement of worn components, and final bench testing with confirmation that parameters have been restored to factory specifications.
Provide the equipment make or pump model — we will select the parts and prepare a quote.
