Designed for the toughest demands of open-circuit systems in mobile applications, our piston pumps provide the displacements, speeds, pressures, and efficiencies needed to meet your unique system needs. Products include the Series 45, D1P, DDP, and X20 series pumps.
The Danfoss portfolio of mobile open-circuit pumps ranges from 18cc to 260cc [1.09 in3 to 15.87 in3], with pressure capabilities up to 420 bar [6,090 psi]. Whether you need a very basic and cost-effective flow source or a highly efficient and flexible system solution, Danfoss has an open-circuit pump for you.
Product range
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The D1P pump family meets the highest pressure and flow needs of new machine applications requiring variable displacement open-circuit flow. Designed for heavy-duty mobile applications, D1P pumps offer displacement options up to 260cc [15.87 in3], maximum working pressures of 350 bar [5,076 psi], and input speeds up to 2,500 rpm. These pumps are available globally with a variety of control options and are robust for harsh conditions.
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Introducing the X1P, the next step in open circuit pump evolution. Designed for durability and peak performance, it’s built to tackle the toughest demands while staying adaptable to tomorrow’s challenges. This isn’t just another pump — it’s the new standard for OEMs and distributors who refuse to compromise. The new generation workhorse.
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The X20 pump family provides state-of-the-art technology for new machine applications needing variable displacement open-circuit flow. With displacements from 18 cm3 to 98 cm3 [1.09 in3 to 5.98 in3] and a continuous pressure rating up to 280 bar (4,495 psi), the X20 portfolio of open-circuit piston pumps provides the power density and controllability needed for mobile equipment. When combined with available power or displacement control options, the productivity of these small, lightweight pumps makes them ideal for advanced mobile applications. X20 pumps are globally available, with production in North America and Asia.
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Series 45 family pumps are a high-performing and flexible option for new machine applications needing variable displacement open-circuit flow. With displacements from 25cc to 147cc [1.53 in3 to 8.97 in3], speeds up to 3,600 rpm, and pressures up to 310 bar [4,495 psi], these pumps are designed to exceed the demanding requirements of the mobile equipment marketplace. Each frame within the Series 45 family is uniquely designed to optimize performance, size, and cost. Series 45 pumps are produced in North America, Europe, and Asia.
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PVH and PVE family pumps are available for servicing of OEM components needing variable-displacement open-circuit flow. Find out more about these products on powersource.com here.
Documents
| Type | Name | Language | Valid for | Updated | Download | File type |
|---|---|---|---|---|---|---|
| Data sheet | D1 High Power Open Circuit Pumps Data Sheet | Chinese | China | 29 Apr, 2021 | 1.2 MB | |
| Data sheet | D1 High Power Open Circuit Pumps Data Sheet | English | Multiple | 06 Sep, 2024 | 1.0 MB | |
| Data sheet | D1 High Power Open Circuit Pumps Data Sheet | Chinese | Multiple | 29 Apr, 2021 | 897.6 KB | |
| Data sheet | Series 45 Axial Piston Open Circuit Pump ETL Control Data Sheet | English | Multiple | 30 Jan, 2019 | 1.7 MB | |
| Data sheet | Series 45 Axial Piston Open Circuit Pump K2 Frame Data Sheet | Chinese | Multiple | 11 Nov, 2019 | 1.1 MB | |
| Data sheet | Series 45 Axial Piston Open Circuit Pump K2 Frame Data Sheet | English | Multiple | 16 Nov, 2023 | 1.0 MB | |
| User guide | Series 45 Axial Piston Open Circuit Pump Technical Information | Japanese | Japan | 10 Jun, 2025 | 17.6 MB | |
| User guide | Series 45 Axial Piston Open Circuit Pump Technical Information | English | Multiple | 04 May, 2025 | 14.0 MB | |
| User guide | Series 45 Axial Piston Open Circuit Pump Technical Information | German | Germany | 08 Mar, 2015 | 1.8 MB | |
| User guide | Series 45 Axial Piston Open Circuit Pump Technical Information | Japanese | Multiple | 10 Jun, 2025 | 15.4 MB | |
| User guide | Series 45 Axial Piston Open Circuit Pump Technical Information. | Chinese | Multiple | 21 Sep, 2023 | 14.3 MB | |
| Data sheet | Series 45 Axial Piston Open Circuit Pumps Data Sheet | English | Multiple | 08 Mar, 2015 | 1.5 MB | |
| User guide | Series 45 Frame G Axial Piston Open Circuit Pump Technical Information Manual | English | Multiple | 09 Mar, 2015 | 1.3 MB | |
| User guide | Series 45 Frame H Axial Piston Open Circuit Pump Technical Information Manual | English | Multiple | 09 Mar, 2015 | 1.6 MB |
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