Hydraulic piston motor HMF-02/HMA-02
Circuit
open or closed
Type
fixed displacement
Displacement [cc/rev]
35-135
Nominal pressure [bar]
450
Fixed Displacement Motors for Open & Closed Circuits
The Series 02 motors from LHY Powertrain stand out from conventional market offerings. These motors deliver required torque even at low speeds, enabling smooth and precise start-up. This eliminates the need for additional speed reduction gearboxes, which:
Reduces component count
Increases overall mechanical efficiency
Minimizes power losses
Lowers machine noise levels
Advantages
- Stable low-speed operation: Smooth and reliable performance even at minimum RPM
- High starting torque: Effective operation initiation under load
- Compact design: Space-saving without compromising performance
- High power density: Exceptional performance-to-size ratio
- High reliability: Proven solutions ensuring long-term operation
- Extended service life: Robust construction with premium-quality materials
Design Characteristics
- Axial piston motor in swashplate design for high pressure open and closed circuit systems
- Optimized startup and low-speed behavior: Ensures smooth and stable operation
- Optional flushing valves: For circuit and housing flushing
- Optional high-pressure relief valves: Fixed or adjustable configurations available
- SAE high-pressure ports: Radial or axial configurations for versatile integration
- SAE mounting flange with ANSI/SAE splined shaft: Simplified installation
| HMF-02/ HMA-02 | 35 | 55 | 63 | 75 | 85 | 105 | 135 | 165 | 210 | 280 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Displacement | cc/rev | 35.6 | 54.7 | 63 | 75.9 | 85.6 | 105 | 135.6 | 165.6 | 210 | 281.9 |
| Max. operating speed | rpm | 4500 | 4100 | 3900 | 3800 | 3600 | 3500 | 3200 | 3100 | 2700 | 2400 |
| Max. speed* | rpm | 4800 | 4400 | 4200 | 4100 | 3850 | 3800 | 3500 | 3400 | 3000 | 2700 |
| Nominal pressure | bar | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 |
| Max. pressure** | bar | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Max. housing pressure | bar | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Torque ( p=430 bar; charge press.=20 bar) | Nm | 244 | 374 | 431 | 519 | 586 | 719 | 928 | 1133 | 1438 | 1929 |
| Corner power (theor.)*** | kW | 115 | 161 | 176 | 207 | 221 | 263 | 311 | 368 | 407 | 485 |
| Weight approx. (without oil) | kg | 16 | 19 | 24 | 26 | 33 | 33 | 39 | 76 | 101 | 146 |
* highest transient speed, that can temporarily occur
** highest transient pressure, that can temporarily occur
*** (Vmax x nmax x ∆p 430 bar)
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