Construction Machinery Piston Motor High-Pressure Specs Durable
Materials for Heavy-Duty Use
Features:
1. Axial tapered piston rotary group with bent-axis design
2. Suitable for open and closed hydrostatic circuits
3. Universal design for mobile and stationary applications
4. Infinitely variable displacement (Vg_max to Vg_min=0)
5. Wide speed-torque control range
6. High power density design
7. Output speed depends on pump flow and motor displacement
8. Output torque increases with pressure differential and
displacement
9. Hydrostatic transmission with wide range control capability
10. Multiple control device options
Technical data:
| Size | NG | 80 | 107 | 140 | 160 | 200 | 250 |
| Geometric displacement, per revolution | Vg max | cm3 | 80 | 107 | 140 | 160 | 200 | 250 |
| Vg min | cm3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Vg x | cm3 | 51 | 68 | 88 | 61 | 76 | 205 |
| Maximum rotational speed(while adhering to the maximum permissible
inlet flow) | at Vg max | nnom | rpm | 3900 | 3550 | 3250 | 3100 | 2900 | 2700 |
| at Vg < Vg x | nmax | rpm | 6150 | 5600 | 5150 | 4900 | 4600 | 3300 |
| where Vg 0 | nmax | rpm | 7350 | 6300 | 5750 | 5500 | 5100 | 3300 |
| Inlet flow | at nnom and Vg max | qv max | l/min | 312 | 380 | 455 | 496 | 580 | 675 |
| Torque | at Vg max and Δp = 400 bar | T | Nm | 509 | 681 | 891 | 1019 | 1273 | ‒ |
| at Vg max and Δp = 350 bar | T | Nm | 446 | 596 | 778 | 891 | 1114 | 1391 |
| Rotary stiffness | Vg max to Vg/2 | cmin | kNm/rad | 16 | 21 | 34 | 35 | 44 | 60 |
| Vg/2 to 0 (interpolated) | cmin | kNm/rad | 48 | 65 | 93 | 105 | 130 | 181 |
| Moment of inertia for rotary group | JTW | kgm2 | 0,008 | 0.0127 | 0.0207 | 0.0253 | 0.0353 | 0,061 |
| Maximum angular acceleration | α | rad/s² | 24000 | 19000 | 11000 | 11000 | 11000 | 10000 |
| Case volume | V | l | 1.2 | 1.5 | 1.8 | 2.4 | 2.7 | 3 |
| Weight approx. | m | kg | 36 | 46 | 61 | 62 | 78 | 100 |
Specifications:
| Warranty | 1 Year |
| Specification | SY-A6VM |
| Place of Origin | China |
| Type | Rexroth axial piston motor |
| Color | Available any color |
| HS Code | 8412299090 |
| Application | excavator, loader, construction machinery |
| Maximum pressure | 450 bar |
| Delivery Time | 15-30 Days after Payment |
| Displacement | 71-250 cm3 |
Applications:
1. In railway and track maintenance machinery, the Rexroth A6VM
variable motor ensures precise hydraulic control and robust
performance for critical maintenance tasks. Integrated with an
axial piston pump, the system delivers steady power and accurate
torque modulation required for rail lifting, switching, and track
alignment operations. Its variable displacement feature allows for
fine-tuning, enhancing operational flexibility and reducing
downtime. This advanced motor design improves safety and efficiency
in maintenance operations, making it an essential component in
modern railway infrastructure projects.
2. Designed for heavy-duty railway maintenance, the Rexroth A6VM
variable motor offers excellent hydraulic performance and precise
control for various track-related tasks. Paired with a hydraulic
pump, the system provides reliable power for rail lifting, ballast
regulation, and switch operations. Its variable displacement
capability enables dynamic adjustments, ensuring smooth and
efficient maintenance workflows. This robust motor design enhances
safety and reduces operational interruptions, making it a valuable
asset for modern track maintenance machinery and infrastructure
upgrades for superior long-term operational reliability.
3. Mining Machinery (Crushers): The A6VM hydraulic motor powers
jaw crushers in mobile crushing plants, handling oversized rocks
with 450-bar pressure capacity. Wear-resistant coatings and
advanced filtration protect this axial piston motor in harsh quarry
environments for aggregate production.
Competitive Advantage:
1. Global Certification Compliance: CE/UL/ATEX certifications
enable use in explosive atmospheres (Zone 1), ensuring safety for
oil refinery pumps or underground coal mining machinery.
2. Utilizing advanced engineering and durable materials, the
Rexroth A6VM motor achieves exceptional longevity and consistent
performance, while its integration with a piston pump delivers
steady hydraulic power, reduced wear, and optimized fluid dynamics,
thereby ensuring reliable, long-term operation in both
high-performance industrial and mobile applications, boosting
overall operational reliability remarkably.
3. The Rexroth A6VM piston motor features outstanding dynamic
response and precise control capabilities, enabling rapid and
smooth speed adjustments and torque transmission even during
high-frequency operating transitions; this hydraulic motor ensures
that high-precision equipment such as CNC machine tools, automated
production lines, and testing apparatus maintain superior
performance and production efficiency in complex operational
environments, solidifying its reputation as a reliable power
solution.
The Analysis For Rexroth A6VM Piston Motor Common Breakdown:
1. Fluctuations in hydraulic fluid viscosity, possibly due to
temperature variations or contamination, can affect the A6VM
motor’s performance by altering flow characteristics; if the
hydraulic pump is similarly impacted, system responsiveness will
diminish, requiring viscosity adjustments and fluid quality
monitoring to maintain optimal operational conditions ensuring
smooth, efficient operation continuously.
2. Sensor malfunctions are a critical cause of performance
anomalies in the Rexroth A6VM hydraulic motor. When sensor readings
are inaccurate or sensors fail, the control system cannot adjust
hydraulic parameters correctly, resulting in erratic system
behavior, abnormal energy consumption, and unstable operation.
Regular sensor calibration, testing, and inspection of data
transmission lines are vital to ensure the proper functioning of
this piston motor.
3. Case Cracking: Radial cracks may result from resonant fatigue
or shock overloads. Perform modal analysis to avoid natural
frequencies and install dampening mounts.
