A4FO Series A4FO22 A4FO28 A4FO40 A4FO71 A4FO125 A4FO180 A4FO250 A4FO500 Hydraulic Axial Piston Fixed Displacement Pump
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| Data sheet |
| Size | 16 to 500 |
| Series | 1 and 3 |
| Nominal pressure up | 400 bar |
| Peak pressure up | 450 bar |
| Features |
| – A4FO axial piston fixed displacement pumps of swashplate design are used for hydraulic drives in open loop circuits. |
| – Flow is proportional to the drive speed and to the displacement. |
| – Good suction characteristic |
| – Low noise leve |
| – Long service life |
| – Pump combinations possible |
| – Through drive for mounting other pumps |
Table of values (theoretical values, without considering hmh and hv: values rounded)
Size | 16 | 22 | 28 | 40 | 71 | 125 | 250/H* | 500/H* |
Displacement | Vg | cm3 | 16 | 22 | 28 | 40 | 71 | 125 | 250 | 500 |
Max. speed | nmax | rpm | 4000 | 3600 | 3000 | 2750 | 2200 | 1800 | 1500 / 1900 | 1320 / 1500 |
Max. permissible speed (speed limit) with increased inlet pressure | nmax perm. | rpm | 4800 | 4500 | 3750 | 3400 | 2700 | 2200 | 1800 / 2100 | 1600 / 1800 |
Output flow at nmax | qV max | L/min | 62 | 77 | 81 | 107 | 152 | 218 | 364 / 461 | 640 / 728 |
Power at qV max; Dp = 400 bar | Pmax | kW | 43 | 53 | 56 | 73 | 91 | 131 | 219 / 277 | 385 / 437 |
Max. torque at Dp = 400 bar | Tmax | Nm | 102 | 140 | 178 | 254 | 395 | 696 | 1391 | 2783 |
Case volume |
| L | 0,3 | 0,3 | 0,3 | 0,4 | 2,0 | 3,0 | 7,0 | 11,0 |
Moment of inertia, about drive axis | J | kgm2 | 0,0017 | 0,0017 | 0,0017 | 0,0030 | 0,0121 | 0,0300 | 0,0959 | 0,3325 |
Weight (approx.) | m | kg | 13,5 | 13,5 | 13,5 | 16,5 | 34 | 61 | 120 | 220 |
Ordering code for standard program：
E- or H-：
E-：HFA-, HFB-, HFC-Fluid
H-：High-Speed Design
A4FO： Series Number
016 or 022 or 028 or 040 or 071 or 125 or 180 or 250 or 500：Displacement Vg (cm3)
10 or 30 or 32： Series
10：A4FO 16、A4FO 22 、A4FO 28、A4FO 40
30：A4FO 71
32：A4FO 125、A4FO 180、A4FO 250、A4FO 500
R or L： viewed on shaft end ：R：clockwise；L：anti-clockwise
N or P or V： Seals
N：NBR (nitril-caoutchouc), shaft seal in FKM (fluor-caoutchouc)：A4FO 16、A4FO 22 、A4FO 28
P：NBR (nitril-caoutchouc), shaft seal in FKM (fluor-caoutchouc)：A4FO 71、A4FO 125、A4FO 180、A4FO 250、A4FO 500
V：FKM (fluor-caoutchouc)：A4FO 71、A4FO 125、A4FO 180、A4FO 250、A4FO 500
S or T or Z or P：
S：splined shaft SAE：A4FO 16、A4FO 22 、A4FO 28
T：splined shaft SAE：A4FO 40
Z：Splined shaft DIN 5480：A4FO 71、A4FO 125、A4FO 180、A4FO 250、A4FO 500
P：parallel shaft, with key DIN 6885：A4FO 71、A4FO 125、A4FO 180、A4FO 250、A4FO 500
C or B or H： Mounting flange
C：SAE 2-hole：A4FO 16、A4FO 22 、A4FO 28、A4FO 40
B：ISO 4-hole：A4FO 71、A4FO 125、A4FO 180、A4FO 250
H：ISO 8-hole：A4FO 500
12 or 25： Service line connections
12：Pressure and suction port SAE at side (opposite side) (metric fixing screws)：A4FO 16、A4FO 22 、A4FO 28、A4FO 40
25：Pressure and suction port SAE at side, rotated by 90° (metric fixing screws) 2nd pressure port B1 opposite B - when delivered plugged with a flange：A4FO 71、A4FO 125、A4FO 180、A4FO 250、A4FO 500
N00 or K or U： Through drive
N00：Without through drive
K：With through drive for mounting an axial piston unit or gear pump
U：Universal through drive (can be modified)
01 or 02 or 68：
01：Flange SAE J744：82-2(A)；Hub for splined shaft SAE J744：5/8 in(16-4)
02：Flange SAE J744：101-2(B)；Hub for splined shaft SAE J744：7/8 in (22-4)
68：Flange SAE J744：101-2(B)；Hub for splined shaft SAE J744：7/8 in (22-4)
B2 or B3 or B4 or B5 or B6 or B7：
B2：Flange ls0 3019-2(metric)：80, 2-hole；Hub for splined shaft SAE J744：3/4 in (19-4)
B3：Flange ls0 3019-2(metric)：100, 2-hole；Hub for splined shaft SAE J744：7/8 in (22-4)
B4：Flange ls0 3019-2(metric)：100, 2-hole；Hub for splined shaft SAE J744：1 in (25-4)
B5：Flange ls0 3019-2(metric)：125, 2-hole；Hub for splined shaft SAE J744：1 1/4 in (32-4)
B6：Flange ls0 3019-2(metric)：125, 2-hole；Hub for splined shaft SAE J744：1 1/2 in (38-4)
B7：Flange ls0 3019-2(metric)：180, 4-hole；Hub for splined shaft SAE J744：1 3/4 in (44-4)
31 or 33 or 34 or 35 or 43 or 99：
31：Flange ls0 3019-2 (metric)：125, 4-hole；Hub for splined shaft DlN 5480：W32x2x14x9g
33：Flange ls0 3019-2 (metric)：140.4-hole；Hub for splined shaft DlN 5480：W40x2x18x9g
34：Flange ls0 3019-2 (metric)：160, 4-hole；Hub for splined shaft DlN 5480：W50x2x24x9g
35：Flange ls0 3019-2 (metric)：224, 4-hole；Hub for splined shaft DlN 5480：W60x2x28x9g
43：Flange ls0 3019-2 (metric)：315, 8-hole；Hub for splined shaft DlN 5480：W80x3x25x9g
99：With through-drive shaft, without hub, without intermediate flange,closed with cover
A complete model, for example：A4FO-71/10R-PPB25N00
