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The GR series orbital motor is a shaft distribution hydraulic motor. This series motors uses a built-in roller type rotor and stator set, a bit different from traditional OMR motor, and has a structure that works under higher pressure and can automatically compensate, so that the whole machine has a more efficient maintenance, longer working life.
• Based upon the world's current rotor and stator design, the new designed GR series motor features :
The starting pressure is low, the efficiency is high, and the maintenance is good, and the operation is stable.
• The high-pressure shaft seal is adopted, which can bear high back pressure, allowing series and parallel use.
• Linkage shaft structure design, the motor has a long service life.
• Optimized design of the distribution system parameters to meet the requirements of low noise.
• The motor structure is compact and easy to install.
Specification
Technical data for GR with 25 and 1 in and 1 in splined and 28.56 tapered shaft
| Type | GR50 | GR80 | GR100 | GR125 | GR160 | GR200 | GR250 | GR315 | GR400 | |
| Displacement
cm3/rev[in3/rev] |
51,5 | 80,3 | 99,8 | 125,7 | 159,6 | 199,8 | 250,1 | 315,7 | 397 | |
| [3.14] | [4.90] | [6.09] | [7.67] | [9.74] | [12.19] | [15.26] | [19.26] | [24.4] | ||
| Max. Speed,
[RPM] |
Cont. | 775 | 750 | 600 | 475 | 375 | 300 | 240 | 190 | 150 |
| Int.* | 970 | 940 | 750 | 600 | 470 | 375 | 300 | 240 | 190 | |
| Max. Torque
daNm[lb-in] |
Cont. | 10[900] | 20[1770] | 24[2125] | 30[2665] | 39[3450] | 38,5[3410] | 39[3450] | 36[3185] | 38[3360] |
| 断续 | 13[1150] | 22[1947] | 28[2480] | 34[3010] | 43[3805] | 46[4070] | 47[4160] | 47[4160] | 47[4160] | |
| 峰值 | 17[1505] | 27[2390] | 32[2832] | 37[3275] | 46[4070] | 56[4960] | 60[5310] | 61[5400] | 61[5400] | |
| Max. Output
kW[HP] |
Cont. | 7[9.5] | 12,5[17] | 13[17.4] | 12,5[16.8] | 11,5[15.4] | 9[12] | 8[10.7] | 5[6.7] | 4,8[6.4] |
| 断续 | 8,5[11.9] | 15[20.1] | 15[20.1] | 14,5[19.5] | 14[18.8] | 12[16.1] | 9,5[12.7] | 8[10.7] | 6,8[9.1] | |
| Max. Pressure Drop
bar[PSI] |
Cont. | 140[2030] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 140[2030] | 110[1600] | 85[1230] | 65[940] |
| 断续 | 175[2540] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 175[2540] | 140[2030] | 115[1670] | 90[1300] | |
| 峰值 | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 200[2900] | 150[2175] | 115[1670] | |
| Max. Oil Flow
lpm[GPM] |
Cont. | 40[10.5] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] |
| 断续 | 50[13.2] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | |
| Max. Inlet Pressure
bar[PSI] |
Cont. | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] |
| 断续 | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | |
| 峰值 | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | |
| Max. Return Pressure with Drain Line
bar[PSI] |
Cont. | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] |
| 断续 | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | |
| 峰值 | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | |
| Max. Starting Pressure with Unloaded Shaft
[bar PSI] |
10[145] | 10[145] | 10[145] | 9[130] | 7[102] | 5[73] | 4[58] | 3[44] | 3[44] | |
| Min. Starting Torque
daNm[lb-in] |
At max. press. drop Cont. | 8[710] | 15[1330] | 20[1770] | 25[2215] | 32[2832] | 33[2920] | 31[2740] | 31,5[2875] | 31,5[2875] |
| At max. press. drop Int.* | 10[85] | 17[1505] | 23[2035] | 28[2480] | 37[3275] | 40[3540] | 48[4250] | 58[5220] | 50[4425] | |
| Min. Speed***,
[RPM] |
10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Weight [kg lb]For rear ports
+0,650[1.433] GR（S) |
6,8[15] | 6,9[15.2] | 7,2[15.9] | 7,3[16.1] | 7,5[15.2] | 8[17.6] | 8,4[18.5] | 9,1[20] | 9,8[21.6] | |
Technical data for GR with 31.75 and 32 shaft
| Type | GR50 | GR80 | GR100 | GR125 | GR160 | GR200 | GR250 | GR315 | GR400 | |
| Displacement
cm3/rev[in3/rev] |
51,5[3.14] | 80,3[4.90] | 99,8[6.09] | 125,7[7.67] | 159,6[9.74] | 199,8[12.19] | 250,1[15.26] | 315,7[19.26] | 397[24.4] | |
| Max. Speed,
[RPM] |
Cont. | 775 | 750 | 600 | 475 | 375 | 300 | 240 | 190 | 150 |
| Int.* | 970 | 940 | 750 | 600 | 470 | 375 | 300 | 240 | 190 | |
| Max. Torque
daNm[lb-in] |
Cont. | 10[900] | 20[1770] | 24[2125] | 30[2665] | 39[3450] | 45[4000] | 54[4780] | 55[4870] | 61[5400] |
| Int.* | 13[1150] | 22[1947] | 28[2480] | 34[3010] | 43[3805] | 50[4425] | 61[5400] | 69[6110] | 69[6110] | |
| Peak** | 17[1505] | 27[2390] | 32[2832] | 37[3275] | 46[4070] | 56[4960] | 71[6280] | 84[7435] | 87[7700] | |
| Max. Output
kW[HP] |
Cont. | 7[9.5] | 12,5[17] | 13[17.4] | 12,5[16.8] | 11,5[15.4] | 11[14.8] | 10[13.4] | 9[12] | 7,8[10.5] |
| Int.* | 8,5[11.9] | 15[20.1] | 15[20.1] | 14,5[19.5] | 14[18.8] | 13[17.4] | 12[16.1] | 10[13.4] | 10,6[14.2] | |
| Max. Pressure Drop
bar[PSI] |
Cont. | 140[2030] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 135[1960] | 110[1600] |
| Int.* | 175[2540] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 175[2540] | 140[2030] | |
| Peak** | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 210[3045] | 175[2540] | |
| Max. Oil Flow
lpm[GPM] |
Cont. | 40[10.5] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] | 60[15.8] |
| Int.* | 50[13.2] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | 75[19.8] | |
| Max. Inlet Pressure
bar[PSI] |
Cont. | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] |
| Int.* | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | |
| Peak** | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | |
| Max. Return Pressure with Drain Line
bar[PSI] |
Cont. | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] | 175[2540] |
| Int.* | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | 200[2900] | |
| Peak** | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | 225[3260] | |
| Max. Starting Pressure with Unloaded Shaft
[bar PSI] |
10[145] | 10[145] | 10[145] | 9[130] | 7[102] | 5[73] | 4[58] | 3[44] | 3[44] | |
| Min. Starting Torque
daNm[lb-in] |
At max. press. drop Cont. | 8[710] | 15[1330] | 20[1770] | 25[2215] | 32[2832] | 41[3630] | 50[4425] | 50[4425] | 50[4425] |
| At max. press. drop Int.* | 10[885] | 17[1505] | 23[2035] | 28[2480] | 37[3275] | 46[4070] | 55[4870] | 66[5840] | 61[5400] | |
| Min. Speed***,
[RPM] |
10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Weight [kg lb]
For rear ports +0,650[1.433] GR（S) |
6,9[15.2] | 7[15.4] | 7,3[16.1] | 7,4[16.3] | 7,6[15.4] | 8,1[18.9] | 8,5[18.7] | 9,2[20.3] | 9,9[21.8] | |
Dimensions
Applications
GRH GR series orbital motors are widely used in feeding machinery, metal processing machinery, textile machinery, agricultural machinery, forest machinery , food industry, and lawn mowers , conveying machines, robots and other rotation applications.
Application
GRH,design and manufacture high-quality hydraulic components and system solutions.
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