
Sauer-Danfoss Series 40 — hydraulic motor / pump
Sauer-Danfoss Series 40 is a line of medium-power swashplate axial piston hydraulic pumps and motors for closed-circuit hydrostatic systems. The series covers single variable pumps (MPV), tandem pumps (MPT), fixed-displacement motors (MMF), and variable motors (MMV) with displacements from 25 to 46 cm³. Maximum working pressure is 345 bar. M25, M35, and M44 pumps use a trunnion-style direct displacement control, while M46 uses a cradle swashplate design with two-position hydraulic servo control.
Series 40 models
The series includes pumps and motors with displacements from 25 to 46 cm³ in fixed and variable displacement configurations.
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Pumps
- Sauer-Danfoss MPV025 / MPT025
- Sauer-Danfoss MPV035 / MPT035
- Sauer-Danfoss MPV044 / MPT044
- Sauer-Danfoss MPV45
- Sauer-Danfoss MPV046 / MPT046 Motors
- Sauer-Danfoss MMF035 (MF035) / MMV035
- Sauer-Danfoss MMF044 / MMV044
- Sauer-Danfoss MMF046 / MMV046
All series are available in the Sauer-Danfoss hydraulics section.
Advantages Series 40
- Compact dimensions and pressure up to 345 bar make the series an optimal solution for medium-power mobile equipment
- Wide choice of configurations — single pump, tandem pump, fixed and variable motor — allows a complete hydrostatic transmission to be built from a single product line
- MPT tandem pumps provide independent control of two hydraulic circuits from a single input shaft
- Proportional electronic, hydraulic, and mechanical controls available for M46 allow flexible adaptation of the drive to the specific machine requirements
Applications Sauer-Danfoss Series 40
Sauer-Danfoss Series 40 pumps and motors are used in the hydrostatic transmissions of compact loaders, mini excavators, and telescopic handlers from manufacturers such as Bobcat, JCB, Manitou, and Gehl. The series is also used in municipal equipment, industrial-grade lawn mowers, and specialised medium-power agricultural machinery.
Parts and repair Series 40
Quality spare parts are available for the Sauer-Danfoss Series 40: cylinder blocks, shafts, pistons with slippers, valve plates, slipper retainer plates, trunnion seals, and repair kits. Parts are identified using the order code and serial number shown on the unit nameplate.
Aspect Plus provides professional repair of Sauer-Danfoss Series 40 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 unit model — we will select the parts and prepare a quote.
