Compact, robust, and quiet
The LDU has a compact design and features a U-style layout in one housing. Best-in-class efficiency ensures high performance and low fuel consumption, and a low noise design improves operator comfort.
New! LDU21C, LDU32, and 3232 join the LDU family

Features and benefits
-
Medium power hydrostatic transmission series
-
Variable pump and fixed motor in one package
-
Displacement (20 to 32cc)
-
Max Working Pressure
- LDU 21C: 250Bar
- LDU 20/24/32: 300Bar
- 3232: 300Bar
Documents
| Type | Name | Language | Valid for | Updated | Download | File type |
|---|---|---|---|---|---|---|
| Data sheet | 3232 Closed Circuit Axial Piston Transmission Data Sheet | English | Multiple | 22 Nov, 2024 | 1.1 MB | |
| Service guide | 3232 Closed Circuit Axial Piston Transmission Parts Manual | English | Multiple | 02 Apr, 2025 | 7.0 MB | |
| Service guide | 3232 Closed Circuit Axial Piston Transmission Service Manual | English | Multiple | 25 Apr, 2025 | 4.6 MB | |
| Service guide | 3232 Closed Circuit Axial Piston Transmission Service Manual | Japanese | Multiple | 16 May, 2025 | 6.1 MB | |
| User guide | 3232 Closed Circuit Axial Piston Transmission Technical Information | Japanese | Multiple | 18 Dec, 2024 | 6.2 MB | |
| User guide | 3232 Closed Circuit Axial Piston Transmission Technical Information | English | Multiple | 22 Nov, 2024 | 4.7 MB | |
| User guide | LDU20 Closed Circuit Axial Piston Transmission Technical Information | Chinese | China | 08 Mar, 2015 | 2.1 MB | |
| Data sheet | LDU20/24 Closed Circuit Axial Piston Transmission Data Sheet | English | Multiple | 27 Nov, 2024 | 897.9 KB | |
| Service guide | LDU20/24 Closed Circuit Axial Piston Transmission Parts Manual | English | Multiple | 02 Apr, 2025 | 5.1 MB | |
| Service guide | LDU20/24 Closed Circuit Axial Piston Transmission Service Manual | English | Multiple | 20 Jun, 2021 | 5.2 MB | |
| Service guide | LDU20/24 Closed Circuit Axial Piston Transmission Service Manual | Japanese | Multiple | 15 May, 2025 | 7.1 MB | |
| User guide | LDU20/24 Closed Circuit Axial Piston Transmission Technical Information | English | Multiple | 27 Nov, 2024 | 3.7 MB | |
| User guide | LDU20/24 Closed Circuit Axial Piston Transmission Technical Information | Japanese | Multiple | 25 Mar, 2025 | 5.2 MB | |
| Data sheet | LDU21C Closed Circuit Axial Piston Transmission Data Sheet | English | Multiple | 27 Nov, 2024 | 923.5 KB | |
| Service guide | LDU21C Closed Circuit Axial Piston Transmission Parts Manual | English | Multiple | 02 Apr, 2025 | 6.6 MB | |
| Service guide | LDU21C Closed Circuit Axial Piston Transmission Service Manual | Japanese | Multiple | 16 May, 2025 | 5.1 MB | |
| Service guide | LDU21C Closed Circuit Axial Piston Transmission Service Manual | English | Multiple | 25 Apr, 2025 | 3.6 MB | |
| User guide | LDU21C Closed Circuit Axial Piston Transmission Technical Information | English | Multiple | 27 Nov, 2024 | 3.5 MB | |
| User guide | LDU21C Closed Circuit Axial Piston Transmission Technical Information | Japanese | Multiple | 25 Mar, 2025 | 5.0 MB | |
| User guide | LDU32 Closed Circuit Axial Piston Transmission | Japanese | Multiple | 07 Mar, 2025 | 4.9 MB | |
| Data sheet | LDU32 Closed Circuit Axial Piston Transmission Data Sheet | English | Multiple | 27 Nov, 2024 | 860.3 KB | |
| Service guide | LDU32 Closed Circuit Axial Piston Transmission Parts Manual | English | Multiple | 02 Apr, 2025 | 9.4 MB | |
| Service guide | LDU32 Closed Circuit Axial Piston Transmission Service Manual | Japanese | Multiple | 15 May, 2025 | 6.2 MB | |
| Service guide | LDU32 Closed Circuit Axial Piston Transmission Service Manual | English | Multiple | 02 Apr, 2025 | 4.6 MB | |
| User guide | LDU32 Closed Circuit Axial Piston Transmission Technical Information | English | Multiple | 20 Jan, 2025 | 3.4 MB |
Related products
Related applications

Farmers need agricultural machines that deliver the same high productivity every season. Hydraulic solutions from Danfoss ensure world-class performance from each machine, and a comfortable, stress-free working environment for their operators.

Space is limited on construction sites, and there are people working everywhere. Contractors need machines that can safely maneuver in a tight spot. At the same time they still need to be powerful enough to get the job done. At Danfoss, we deliver the components, software, and controls that enable your machines to run safely, efficiently and effectively.

Cranes and other large handling machines are required to operate within very specific load ranges. Danfoss provides pressure transmitters that supply load limiting systems with crucial data, safeguarding your equipment, your load, and your operator.

Rough, sloping terrain and cramped working conditions call for robust and reliable forestry machines. We make sure you can manage everything from cutting trees and transport to preparing the forest floor for replanting. We have the smart hydraulic solutions your machines need for precise and efficient forestry operations.
Related solutions
PowerSource

Visit PowerSource
Visit PowerSource to view product specifications, literature and helpful tools like product configurators, 2D/3D models, and more.
Explore more




