For Sauer danfoss 42L51 Axial Piston hydraulic Pump
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The Sauer Danfoss 42L51 is a robust, axial piston pump engineered for heavy-duty close-circuit applications. It employs a reliable swashplate design where multiple pistons reciprocate in a rotating cylinder block. A key feature is its high power density, delivering a maximum displacement of 51 cm³/rev. The pump is built to withstand the harsh operating environments of mobile off-highway equipment, offering a high continuous pressure rating (up to 420 bar) and excellent volumetric efficiency. While often a fixed-displacement unit, it can be integrated with various external valving for system control. The 42L51 is renowned for its durability, long service life, and quiet operation, making it a preferred choice for powering hydraulic functions in demanding machinery such as cranes, drilling rigs, and large material handlers, where consistent, reliable flow is essential.
Specifications
| Pump configuration | Single variable pump | ||||
| Frame size | cm3 | 28 | 32 | 41 | 51 |
| Displacement | [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 | ||||
| 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] |
| 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 |
Selection Table
| 42L51 axial piston hydraulic pump | ||
| Model No. | Model Code | Model Code |
| 4412119 | 42-L-51-C-E1A5-00-A-N-A-3-G-N-B-32-32-N-N-N-NNN-NNN | 42L51CE1A500ANA3GNB3232NNNNNNNNN |
| 4412098 | 42-L-51-C-E1A5-01-A-N-A-3-G-N-B-34-34-N-N-N-NNN-NNN | 42L51CE1A501ANA3GNB3434NNNNNNNNN |
| 83019658 | 42-L-51-C-E1A7-03-B-2-B-2-H-N-N-34-NN-N-N-N-NNN-NNN | 42L51CE1A703B2B2HNN34NNNNNNNNNNN |
| 83015953 | 42-L-51-C-E1A7-03-D-N-F-2-H-N-N-34-NN-N-N-N-NNN-NNN | 42L51CE1A703DNF2HNN34NNNNNNNNNNN |
| 83006792 | 42-L-51-C-E1A7-03-D-N-F-3-H-N-N-28-28-N-N-N-NNN-NNN | 42L51CE1A703DNF3HNN2828NNNNNNNNN |
| 83004751 | 42-L-51-C-E1A7-03-D-N-F-3-H-N-N-34-34-N-N-N-NNN-NNN | 42L51CE1A703DNF3HNN3434NNNNNNNNN |
| 83060467 | 42-L-51-C-E2D8-03-A-N-A-2-H-N-N-34-34-N-N-N-NNN-NNN | 42L51CE2D803ANA2HNN3434NNNNNNNNN |
| 83024017 | 42-L-51-C-F5NN-73-J-2-B-2-H-N-N-34-NN-N-N-N-NNN-NNN | 42L51CF5NN73J2B2HNN34NNNNNNNNNNN |
| 4412168 | 42-L-51-D-A1NB-03-C-2-A-3-F-N-A-34-34-N-N-N-NNN-NNN | 42L51DA1NB03C2A3FNA3434NNNNNNNNN |
| 83052542 | 42-L-51-D-E1A5-00-A-N-A-3-F-N-A-28-28-N-N-N-NNN-NNN | 42L51DE1A500ANA3FNA2828NNNNNNNNN |
| 4412138 | 42-L-51-D-E1A5-00-A-N-A-3-F-N-A-28-28-N-N-N-NNN-NNN | 42L51DE1A500ANA3FNA2828NNNNNNNNN |
| 83029498 | 42-L-51-D-E1A5-00-A-N-A-3-F-N-A-34-34-N-N-N-NNN-NNN | 42L51DE1A500ANA3FNA3434NNNNNNNNN |
| 4412154 | 42-L-51-D-E1A5-00-A-N-A-3-F-N-A-34-34-N-N-N-NNN-NNN | 42L51DE1A500ANA3FNA3434NNNNNNNNN |
| 4412139 | 42-L-51-D-E1A5-00-A-N-A-3-F-N-N-28-28-N-N-N-NNN-NNN | 42L51DE1A500ANA3FNN2828NNNNNNNNN |
| 4412164 | 42-L-51-D-E1A5-00-A-N-A-3-F-N-N-34-34-N-N-N-NNN-NNN | 42L51DE1A500ANA3FNN3434NNNNNNNNN |
| 4412140 | 42-L-51-D-E1A5-00-B-D-B-3-F-N-A-30-30-N-N-N-NNN-NNN | 42L51DE1A500BDB3FNA3030NNNNNNNNN |
| 4412137 | 42-L-51-D-E1A5-00-B-D-B-3-F-N-N-30-30-N-N-N-NNN-NNN | 42L51DE1A500BDB3FNN3030NNNNNNNNN |
| 83006147 | 42-L-51-D-E1A5-00-B-D-G-3-F-N-A-21-21-N-N-N-NNN-NNN | 42L51DE1A500BDG3FNA2121NNNNNNNNN |
| 11054435 | 42-L-51-D-E1A5-00-B-D-G-3-F-N-A-21-21-N-N-N-NNN-NNN | 42L51DE1A500BDG3FNA2121NNNNNNNNN |
| 83003828 | 42-L-51-D-E1A5-00-B-D-G-3-F-N-A-28-28-N-N-N-NNN-NNN | 42L51DE1A500BDG3FNA2828NNNNNNNNN |
| 83003831 | 42-L-51-D-E1A5-00-B-D-G-3-F-N-A-34-34-N-N-N-NNN-NNN | 42L51DE1A500BDG3FNA3434NNNNNNNNN |
| 4412130 | 42-L-51-D-E1A5-01-A-N-A-2-F-N-A-28-28-N-N-N-NNN-NNN | 42L51DE1A501ANA2FNA2828NNNNNNNNN |
| 4412135 | 42-L-51-D-E1A5-01-A-N-A-2-F-N-N-28-28-N-N-N-NNN-NNN | 42L51DE1A501ANA2FNN2828NNNNNNNNN |
| 4412097 | 42-L-51-D-E1A5-01-A-N-A-3-G-N-B-34-34-N-N-N-NNN-NNN | 42L51DE1A501ANA3GNB3434NNNNNNNNN |
| 4412126 | 42-L-51-D-E1A5-01-A-N-A-3-H-N-B-34-34-N-N-N-NNN-NNN | 42L51DE1A501ANA3HNB3434NNNNNNNNN |
| 83057240 | 42-L-51-D-E1A6-03-A-N-A-3-F-N-N-17-17-N-N-N-NNN-NNN | 42L51DE1A603ANA3FNN1717NNNNNNNNN |
| 4412146 | 42-L-51-D-E1A6-03-A-N-A-3-F-N-N-17-17-N-N-N-NNN-NNN | 42L51DE1A603ANA3FNN1717NNNNNNNNN |
| 83011132 | 42-L-51-D-E1A6-03-A-N-A-3-H-N-N-34-34-B-N-N-NNN-NNN | 42L51DE1A603ANA3HNN3434BNNNNNNNN |
| 83003925 | 42-L-51-D-E1A6-03-B-D-G-3-F-N-N-17-17-N-N-N-NNN-NNN | 42L51DE1A603BDG3FNN1717NNNNNNNNN |
| 83010993 | 42-L-51-D-E2D8-03-B-D-B-3-G-N-A-30-30-B-N-N-NNN-NNN | 42L51DE2D803BDB3GNA3030BNNNNNNNN |
| 83040059 | 42-L-51-D-F5NN-73-J-2-B-2-H-N-N-34-NN-N-N-N-NNN-NNN | 42L51DF5NN73J2B2HNN34NNNNNNNNNNN |
| PVM51-704 | 42-L-51-D-G3AN-52-P-D-B-3-H-5-B-25-25-N-1-1-NNN-NNN | 42L51DG3AN52PDB3H5B2525N11NNNNNN |
| 4412184 | 42-L-51-E-ANNB-03-B-2-B-2-F-N-N-34-34-N-N-N-NNN-NNN | 42L51EANNB03B2B2FNN3434NNNNNNNNN |
| 4412185 | 42-L-51-E-E1A7-00-B-2-B-2-F-N-N-34-34-B-N-N-NNN-NNN | 42L51EE1A700B2B2FNN3434BNNNNNNNN |
| 4412186 | 42-L-51-E-E1A7-00-D-N-F-2-F-N-N-25-25-N-N-N-NNN-NNN | 42L51EE1A700DNF2FNN2525NNNNNNNNN |
| 83019546 | 42-L-51-E-E2D8-03-B-D-G-3-F-N-B-25-25-N-N-N-NNN-NNN | 42L51EE2D803BDG3FNB2525NNNNNNNNN |
| 83027666 | 42-L-51-E-E2D8-03-B-D-G-3-F-N-B-34-25-N-N-N-NNN-NNN | 42L51EE2D803BDG3FNB3425NNNNNNNNN |
| 83041974 | 42-L-51-E-F4NN-72-J-3-B-3-F-N-R-34-34-B-A-A-NNN-NNN | 42L51EF4NN72J3B3FNR3434BAANNNNNN |
| 4412199 | 42-L-51-E-F4NN-73-J-3-B-3-F-N-V-21-21-B-A-A-NNN-NNN | 42L51EF4NN73J3B3FNV2121BAANNNNNN |
| 83003902 | 42-L-5A-D-E1A5-00-B-D-G-3-F-N-A-34-34-N-N-N-AAA-NNN | 42L5ADE1A500BDG3FNA3434NNNAAANNN |
| 11036123 | 42-L-5A-D-E1A5-00-B-D-G-3-F-N-A-34-34-N-N-N-AAA-NNN | 42L5ADE1A500BDG3FNA3434NNNAAANNN |
| 4412203 | 42-L-5A-D-E1A5-00-B-D-G-3-F-N-A-34-34-N-N-N-AAA-NNN | 42L5ADE1A500BDG3FNA3434NNNAAANNN |
Q1:For what type of applications is the 42L51 pump particularly suited?
A1: The 42L51 hydraulic pump is particularly suited for heavy-duty applications in demanding mobile off-highway equipment, such as cranes, drilling rigs, and large material handlers, where ruggedness and reliable flow are critical.
Q2:What is the maximum displacement of the Sauer Danfoss 42L51 hydraulic pump?
A2:The Sauer Danfoss 42L51 hydraulic pump has a maximum displacement of 51 cubic centimeters per revolution (cm³/rev), as denoted in its model number.
Q3:How to purchase a 42L51 hydraulic pump?
A3:You can click on the right sidebar or the contact information in the top bar to contact us to purchase. You can do so via email, form, WeChat, WhatsApp, or other methods.
Q4:What is the price and delivery time of the 42L51 hydraulic pump?
A4:The specific price and delivery time will be provided based on the specific model you provide.
