OMP Hydraulic Motors
Structure features:
◎Advanced stator and rotor parameters design, with low starting pressure, high efficiency and stable low speed operation;
◎High operating pressure and high output torque;
◎Advanced shaft seal design, with high back pressure bearing capacity;
◎Advanced and reliable linkage shaft design, with a long motor service life;
◎Advanced oil distribution mechanism design, with high oil distribution accuracy and automatic wear compensation;
◎The motors can be used in series and parallel; when they are connected in series, they should be connected to the external drain pipe;
◎Tapered roller bearing support design, with a large radial load carrying capacity, so that the motor can be used directly drive the operating mechanism.
- Product Introduction
We often get asked whether OMP Series orbital motors can replace the ones from M+S, Eaton, or Danfoss. In practice, the answer is yes in most cases, but it's worth looking at what works and what to check before swapping.
| Main Specification | |||||||||||
| Displacement, cc/r | 50 | 63 | 80 | 100 | 125 | 160 | 200 | 250 | 305 | 400 | |
| Flow, LPM | Cont. | 38 | 45 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 |
| Int. | 45 | 53 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | |
| Speed, RPM | Cont. | 698 | 663 | 670 | 558 | 452 | 354 | 284 | 235 | 178 | 145 |
| Int. | 859 | 774 | 811 | 669 | 544 | 425 | 339 | 281 | 208 | 171 | |
| Pressure, MPa | Cont. | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 11.5 | 11 | 10 | 9 | 8.3 |
| Int. | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 12.4 | 12.4 | 12.4 | 12.4 | 11 | |
| Torque, Nm | Cont. | 83 | 104 | 124 | 154 | 194 | 228 | 285 | 304 | 364 | 419 |
| Int. | 93 | 116 | 139 | 173 | 216 | 261 | 319 | 378 | 508 | 522 | |
| Max. allowable back pressure | 10MPa | ||||||||||
When you look at a machine that originally used an OMR or OMP motor, the first thing to consider is the fit. ZMP Series motors are built to match standard mounting patterns, so the flanges usually line up. That means you can often take the old motor off and bolt the ZMP Series in without changing the frame. Output shafts are available in keyed, splined, or plain round versions. If your equipment has a unique shaft profile, we can make one based on a sample. Ports follow common layouts, so connecting hoses usually doesn't require rerouting.
Performance is the next thing to check. OMP Series covers the typical displacement ranges found in mobile or industrial equipment. Torque is comparable to the originals, and low-speed starts are smooth without noticeable vibration. Rated speeds match what the system expects, so you rarely need to adjust settings. Internal leakage is minimized through careful pairing of rotor and stator parts, keeping the torque stable over time. In short, machines run the same as they did before, just with a motor that's easier to source.
Cost and availability make a difference too.OMP Series motors are generally less expensive than imported units but offer similar performance. Standard sizes are usually in stock, and even custom versions have shorter lead times than waiting for overseas shipments. Spare parts like rotors, stators, valve plates, shafts, and seals are kept in stock for maintenance, which helps avoid downtime.
Finally, there's customization. Sometimes the standard motor isn't enough. We can adjust rotor-stator pairs for specific torque or speed, modify shafts, flanges, or port positions, and even supply partial components if a full motor isn't needed. This is particularly handy if the original brand is no longer available or you need a small trial batch.
OMP orbital hydraulic motor offer a practical, drop-in alternative for many machines. They save cost, reduce wait time, and keep equipment running smoothly without surprises.
Hot Tags: omp hydraulic motors, China omp hydraulic motors manufacturers, factory, hydraulic motor training, hydraulic motor installation, hydraulic motor replacement, hydraulic motor fluid compatibility, hydraulic motor procurement, hydraulic motor website
