Piston motors are selected from the required torque-speed envelope and operating duty, then verified against displacement, pressure, controls, mounting and installed interfaces.
Request a hydraulic piston motor match.: Send the full motor code, nameplate, torque, speed, pressure, shaft, mounting, ports, brake, application and destination.
Main piston motor types
- Axial swashplate motors for compact fixed or variable-displacement drives
- Bent-axis motors for high-speed and high-efficiency applications
- Radial piston motors for high-torque, low-speed direct drives
- Open-circuit and closed-loop motors with different control and flushing needs
- Motor assemblies with brakes, reduction units, sensors or wheel interfaces
Performance selection
- Continuous, intermittent and starting torque requirements
- Minimum, rated and maximum operating speed
- Working and peak pressure plus acceptable case pressure
- Fixed or variable displacement and control response
- Efficiency, cooling, flushing, fluid and expected duty cycle
Replacement interface checks
- Complete code, displacement and design revision
- Shaft, mounting pilot, bolt pattern and permitted external loads
- Main ports, case drain, flushing and brake connections
- Rotation, brake release, sensors and control configuration
- Machine model, gearbox or wheel interface and operating symptoms
Family comparison at a glance
| Motor family | Typical strength | Interface to confirm |
|---|---|---|
| Axial swashplate motor | Compact package, wide speed range, variable-displacement options | Swashplate angle range, control, shaft and case pressure |
| Bent-axis piston motor | High efficiency and speed capability | Bent angle, displacement, mounting and drain routing |
| Radial piston motor | High torque at low speed for direct drives | Torque rating, speed limit, shaft load and brake option |
| Motor with integrated brake or gearbox | Complete drive package with one supply interface | Brake release pressure, ratio, sensor and wheel mounting |
Data needed before a quote
- Complete motor model code and revision
- Nameplate plus shaft, flange, port and control photographs
- Required torque and speed envelope, including start and peak values
- Working, peak and case pressure limits for the application
- Machine function, duty cycle, fluid and ambient conditions
- Brake, sensor, reduction or wheel-mount requirements