Danfoss Series 42 4T Axial Piston Pump
Danfoss Series 42 4T Axial Piston Pump
Danfoss Series 42 4T is available with servo-controlled pumps are available in 28cc or 32cc displacements. We provide Danfoss Series 42 4T Axial Piston Pump repair, sales and maintenance services to keep your machine running at their peak.
- Series: Danfoss Series 42
- Axial Piston Pump
- Model Sizes : 28, 41.
- Nominal Pressure 400 [5800]
- Maximum Pressure 450 [6525]
- Model Sizes :32, 51.
- Nominal Pressure 350 [5075]
- Maximum Pressure 400 [5800]
- It is used in, construction, pavers, Crane and material handling, dumpers.
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Danfoss Series 42 4T Axial Piston Pump is designed with a medium-duty system, which features the shortest length in the market and a wide range of flexible, integral product options. S42 pumps are sophisticated hydrostatic machines that can handle high loads of 415 bar [6020 psi] (41 cm3) and 350 bar [5075 psi] (51 cm3). To transfer and regulate hydraulic power, you can integrate these pumps with an appropriate Danfoss motor or other items in a system.
These motors come with a reverse swashplate and the parallel axial piston/slipper concept are used by the Series 42 variable displacement pump, a small, high power density device, to change the pump's displacement. By changing the swashplate's angle, the fluid flow from the pump and the motor output's rotational direction can be reversed. In both forward and backward, Series 42 4T pumps offer an infinitely adjustable speed range from zero to maximum.
Danfoss Series 42 pumps are built with a hydraulic servo control cylinder and a cradle swashplate construction. There are numerous servo controls to choose from. These consist of proportional controls that are either electric or hydraulic, feedback controls that are either mechanically or electrically operated, and an electric control with three positions. These controls function responsively and have minimal hysteresis.
Characteristics
- 400 bar max. application pressure
- Servo-controlled
- Wide range of control options
- Electric displacement control (EDC)
- Forward-Neutral-Reverse (FNR)
- Non feedback proportional electric (NFPE)
- Mechanical displacement control (MDC)
- Non feedback proportional hydraulic (NFPH)
Technical Specifications
Technical Data
Pump configuration | Single variable pump | ||||
Frame size | cm³ | 28 | 32 | 41 | 51 |
Displacement | cm³ [in³] | 28 [1.71] | 31.8 [1.94] | 40.9 [2.50] | 51 [3.11] |
Weight | kgf [lbf] | 34.5 [76] | 34.5 [76] | 42 [92] | 42 [92] |
Mass moment of inertia | kg•m² [lbf•ft²] | 0.0018 [0.0013] | 0.0019 [0.0013] | 0.0036 [0.0027] | 0.0038 [0.0028] |
Type of front mounting flange (SAE flange size per SAE J744) | SAE B | ||||
Port connections | SAE-twin ports, radial | ||||
System pressure regulation | bar [psi] | 140-415 [2030-6017] | 140-345 [2030-5003] | 140-415 [2030-6017] | 140-345 [2030-5003] |
Displacement limiters | Option | ||||
Input shaft options | Splined, Round Straight Key | ||||
Auxiliary mounting pad (SAE pad per SAE J744) | SAE A (9 tooth and 11 tooth), SAE B (13 tooth and 15 tooth) | ||||
Control options | MDC, FNR, NFPH, NFPE, HC-EDC, EDC | ||||
Filtration configuration | Suction or charge pressure filtration | ||||
Loop flushing | Option |
System Parameters
Case pressure | ||
Rated pressure | bar [psi] | 3 [44] |
Maximum pressure (cold start) | bar [psi] | 5 [73] |
Pressure Limits
Pressure Limits | |||||
Frame size | cm3 | 28 | 32 | 41 | 51 |
Maximum working pressure * | bar [psi] | 400 [5800] | 350 [5075] | 400 [5800] | 350 [5075] |
Maximum pressure | bar [psi] | 450 [6525] | 400 [5800] | 450 [6525] | 400 [5800] |
* Operation above maximum working pressure is permissible with Danfoss application approval.
Inlet Pressure
Inlet Pressure | ||
Continue pressure | bar (absolute) [in Hg vacuum] | 0.8 [6] |
Minimum pressure (cold start) | bar (absolute) [in Hg vacuum] | 0.2 [24] |
Speed Limits
Frame size | cm³ | 28 | 32 | 41 | 51 |
Minimum speed | min-1 (rpm) | 500 | 500 | 500 | 500 |
Rated speed at maximum displacement | min-1 (rpm) | 3400 | 3000 | 3200 | 2900 |
Maximum speed at maximum displacement | min-1 (rpm) | 3750 | 3400 | 3450 | 3400 |
Charge Pump Displacement and Setting Pressure
Frame size | cm³ | 28/32 | 41/51 | ||
Charge pump | Internal | Standard | cm3 /rev [in3 /rev] | 11 [.67] | 15.6 [.92] |
External | – | Optional | Optional | ||
Charge relief valve settings | Standard Optional | bar | 14 [203] | 20 [290] | |
[psi] | 10-24 [145-348] | 10-24 [145-348] |
Theoretical Flow
Frame size | cm³ | 28 | 32 | 41 | 51 |
Theoretical flow at rated speed | l/min [US gal/min] | 95.2 [25.1] | 95.4 [25.2] | 131 [34.6] | 148 [39.1] |
Product Models
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