MH and BMH orbital motors are low speed and compact design units. Distribution valve is integrated with output shaft. BMH rs are designed for medium duty cycle. For heavy duty applications MH motors are recommended. Both BMH and MH series are used in industrial machines.
Rotational speed range: from 5 through 445 rpm; maximum continuous pressure: up to 175 bar.
The MH and BMH orbital hydraulic motors are medium size motors of light and compact design. Distribution valve is integrated with output shaft. Gearwheel sets with rollers are suitable for longer work at higher pressures, for operation with thin oil, and for frequent reverse loads. MH and BMH motors consist of five models of each series.
The MH series consists of models with four shaft versions: 2 keyed (C and CB), one tapered K, and one splined SH and oval flange with 4 orifices. The BMH motors are also available with four shaft versions: 2 keyed (B and M), one tapered T and one splined F and with rhomb-shaped flange with four orifices.
Features:
- Displacement: 200 – 500 cm3/rev;
- Rotational speed range: 5 – 370 rpm;
- Maximum pressure: from 125/180 bar through 175/225 bar (continuous/peak);
- Maximum power: 6.5 – 16 kW.
Advantages:
- Low start-up pressure;
- Shaft seal can bear high back pressure;
- The motor can be used in parallel or series configuration;
- Distribution system can meet the requirements of low noise units;
- Compact volume and easy installation;
- High torque.
Applications
These motors can be used in industrial machines (e.g. conveyors), mining machinery (e.g. drills, winches), working machines (e.g. bulldozers, crushers) and in shipbuilding industry (e.g. control systems, propellers) etc.
| Technical data of MH motors | 200 | 250 | 315 | 400 | 500 |
|---|---|---|---|---|---|
| Displacement [cm3/rev] | 201,3 | 252 | 314,9 | 396,8 | 502,4 |
| Max rotational speed (conti.) [rpm] | 370 | 295 | 235 | 185 | 150 |
| Max rotational speed (inter.) [rpm] | 445 | 350 | 285 | 225 | 180 |
| Max flow [lpm] | 75 | 75 | 75 | 75 | 75 |
| Torque per bar [Nm/bar] | 2,91 | 3,49 | 4,23 | 5,42 | 6,56 |
| Max pressure drop conti./peak [bar] | 175/225 | 175/225 | 175/225 | 155/210 | 125/180 |
| Max power conti. [kW] | 16 | 16 | 14 | 12,5 | 11 |
| Weight [kg] | 10,5 | 11 | 11,5 | 12,3 | 13 |
| Technical data of BMH motors | 200 | 250 | 315 | 400 | 500 |
|---|---|---|---|---|---|
| Displacement [cm3/rev] | 203,2 | 255,9 | 316,1 | 406,4 | 489,2 |
| Max rotational speed (conti.) [rpm] | 366 | 290 | 236 | 183 | 155 |
| Max flow [lpm] | 75 | 75 | 75 | 75 | 75 |
| Max pressure drop (conti.) [bar] | 175 | 175 | 175 | 155 | 125 |
| Max power (conti.) [kW] | 11,2 | 9,2 | 9,8 | 7,4 | 6,5 |
| Weight [kg] | 10,5 | 11 | 11,5 | 12,3 | 13 |