BM4 Series orbital hydraulic motors are small volume hydraulic motors with design of spool valve and Geroler element. They have the following product features:
· Advanced design of spool valve and Geroler element, smaller size and compacter structure compared with other type hydraulic motors.
· Credible design of shaft seal, which can bear high pressure.
· Direction of shaft, rotation and speed can be controlled easily and smoothly.
· Stepless speed variation, mini. stable speed could be 15r/m, easy to install, low costs.
· Could be used in parallel or in series connection in the hydraulic systems.
· Low rotation inertia, easy to start with load, both positive and negative rotation being allowed, and no need to stop the rotation for changing the rotation direction.
· High efficiency and economical, suitable for medium duty applications.
· A variety of connection dims. options of flange, output shaft and oil port.
| Displacementcm³/r [in³/r] | 245[15.0] | 310[18.9] | 390[23.8] | 500[30.5] | 630[38.4] | 800[48.8] | |
| Flow LPM [GPM] |
Cont. | 80[18] | 80[18] | 80[18] | 80[18] | 80[18] | 80[18] |
| Int. | 100[22] | 100[22] | 100[22] | 100[22] | 100[22] | 100[22] | |
| Max. Speed (RPM) |
320 | 250 | 200 | 156 | 120 | 106 | |
| Int. | 390 | 300 | 240 | 200 | 150 | 120 | |
| Pressure ΔBar [ΔPSI] |
Cont. | 140 [2030] |
140 [2030] |
140 [2030] |
140 [2030] |
125 [1813] |
100 [1450] |
| Int. | 150 [2175] |
150 [2175] |
150 [2175] |
150 [2175] |
130 [1885] |
120 [1740] |
|
| Torque Nm [lbf-in] |
Cont. | 435 [3850] |
556 [4921] |
698 [6178] |
870 [7700] |
997 [8824] |
1024 [9063] |
| Int. | 502 [4443] |
664 [5877] |
798 [7063] |
1058 [9364] |
1178 [10426] |
1380 [12214] |
|