Rexroth Axial Piston Motor Cast Iron Body 1500 RPM for Mining
Applications
Features:
1. Axial tapered piston rotary group with bent-axis design
2. Compatible with open/closed-loop hydrostatic drive systems
3. Infinitely adjustable displacement from Vg max to Vg min=0
4. Output speed proportional to flow rate and inversely
proportional to displacement
5. Torque increases linearly with pressure differential and
displacement
6. Compact bent-axis structure
7. High power-to-weight ratio design
8. Long-life bearing system
9. Low inertia moment characteristic
10. Optimized starting performance
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 | 80-250 cm3 |
Applications:
1. In metallurgical machinery, the Rexroth A6VM variable motor is
engineered to provide robust hydraulic control for high-temperature
and high-pressure environments. Paired with a hydraulic pump, the
system delivers consistent energy output required for metal
forming, rolling, and pressing operations. Its variable
displacement feature allows precise adjustments for complex
metallurgical processes, ensuring optimal performance and
efficiency. The motor’s durable design and advanced control ensure
reliable operation even under severe conditions, significantly
enhancing production quality and throughput in metallurgical plants
for excellence.
2. Within metallurgical applications, the Rexroth A6VM variable
motor delivers outstanding performance by managing high hydraulic
pressures and rapid process adjustments. Integrated with a piston
pump, the system ensures steady and reliable fluid dynamics
essential for operations like metal casting and hot rolling. Its
variable displacement feature offers accurate control over flow and
torque, reducing energy waste and improving process efficiency.
This robust motor design is built to withstand extreme conditions,
making it a choice for enhancing productivity in metallurgical
industries.
3. Marine Systems (Propulsion): The A6VM axial piston motor
enhances thruster performance in dynamic positioning (DP) systems
through dual-pump merging technology. This piston motor delivers
high torque at low speeds for fuel-efficient maneuvering of
tugboats or research vessels during precise harbor navigation.
Competitive Advantage:
1. Contamination Resistance: Multi-stage filtration and magnetic
traps allow stable performance in NAS Class 10 oils. Self-cleaning
valve plates extend filter life to 2,000 hours, cutting maintenance
costs for agricultural or waste handling equipment.
2. Thanks to its high power density and excellent starting
characteristics, the Rexroth A6VM piston motor quickly responds to
system commands with rapid start-up and precise stopping
capabilities; this hydraulic motor supplies continuous and stable
power for high-speed machine tools, industrial robotics, and
logistics systems, significantly boosting production efficiency and
enhancing the dynamic response of overall equipment performance.
3. Offering broad control range and dynamic responsiveness, the
Rexroth A6VM motor excels in adjusting to fluctuating operational
demands, with its variable displacement technology providing
precise adjustments, and integration with an axial piston pump
ensuring consistent hydraulic pressure, thereby delivering reliable
performance even in challenging, high-load scenarios, boosting
system robustness significantly.
The Analysis For Rexroth A6VM Piston Motor Common Breakdown:
1. Sudden Noise Increase (＞75 dB): High-pitched noise typically
relates to piston shoe lubrication failure or worn valve plate.
Confirm oil cleanliness (NAS Class 9) and return line pressure
(<0.3 MPa).
2. Contaminated or degraded seals in the A6VM motor can lead to
significant fluid leakage and reduced pressure, undermining the
overall performance; if the piston pump is compromised, these
issues may accelerate, demanding immediate seal replacement and
system integrity verification to prevent catastrophic failures, to
secure long-lasting durability immediately.
3. In cases where the control system response is delayed or sensor
data is inaccurate, the Rexroth A6VM piston motor may exhibit slow
speed regulation. Such delays lead to unstable output, reduced
precision, and energy losses while compromising the overall
coordination of the hydraulic system. Ensuring proper calibration
of controllers and sensors along with high-speed data transmission
is critical to maintain the optimal performance of this axial
piston motor.
