A6VM160EZ Construction Machinery Piston Motor Swashplate Design,
4900 RPM Limit
Features:
1. Bent-Axis Configuration: Integrated bent-axis rotary group for
optimized power transmission
2. Dual Circuit Compatibility: Suitable for both open and closed
hydrostatic circuits
3. Mobile Application Optimized: Specifically designed for mobile
machinery applications
4. Stationary Application Friendly: Ideal for various fixed
installation systems
5. Wide Control Range: Meets high-speed operational requirements
6. High power density
7. Axial piston configuration
8. Balanced valve plate
9. Integrated piston traction lubrication circuit
10. High‑precision piston guide bushings
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 | 12 months |
Transport Package | Standard Export Wooden Case |
Certification | ISO9001: 2000 |
Type | Construction machinery piston motor |
Production Capacity | 1000 pcs/month |
HS Code | 8412299090 |
Application | Construction machinery mobile drive systems |
Maximum torque | 1273 Nm |
Delivery Time | 15-30 Days after Payment |
Displacement | 71-250cc |
Applications:
1. In semi‑submersible platform motion compensation systems, the
Rexroth A6VM hydraulic motor utilizes its multi‑motor parallel
operation mode and low internal leakage design to deliver real‑time
pitch, roll, and heave compensation forces to the deck. Its
integrated position feedback and closed‑loop control continuously
adjust torque output in response to wave dynamics, safeguarding
equipment and personnel. The optional IP65-rated dust‑ and
waterproof configuration ensures long‑term reliability under marine
salt spray and heavy sea states.
2. In smart industrial robot joint drives, the Rexroth A6VM piston
motor leverages its high‑response proportional solenoid valves and
rapid response time to achieve precise synchronization of link
articulation and gripping motions. Its self‑lubricating slipper
material reduces friction‑induced noise, while the high‑rigidity
drive shaft and dual‑side bearing support ensure stability during
multi‑axis coordination. Integrated filter mounting and oil
temperature sensor ports enable online monitoring of oil quality
and thermal conditions, minimizing production‑line downtime for
maintenance.
3. In hydraulic dam gate actuation systems, the Rexroth A6VM axial
piston motor delivers smooth torque and speed control for gate
opening and closing through its pressure‑compensated control and
efficient internal leakage management. Its thermal expansion
compensation design maintains displacement accuracy over prolonged
operation despite temperature fluctuations. The combination of
proportional load‑sense amplifiers and closed‑loop position
feedback achieves gate positioning errors below 0.5%, meeting
high‑precision hydraulic infrastructure requirements and mitigating
structural stresses from water flow surges.
Competitive Advantage:
1. Integrated with a multi‑stage high‑precision pressure pulse
dampener, the Rexroth A6VM axial piston motor effectively
suppresses system pressure fluctuations and pulses, safeguarding
downstream control components. The smooth pressure output prolongs
the lifespan of piping and valves while enhancing overall system
stability. Ideal for high‑precision servo systems, grouting
equipment, and high‑pressure flushing applications, this hydraulic
motor’s pulsation-free performance ensures accurate process control
and reduces maintenance needs, making it a preferred choice for
sensitive industrial installations.
2. The Rexroth A6VM piston motor supports a Quick Service Kit that
includes pre‑assembled seals, valves, and bearing modules for rapid
on‑site maintenance and repairs. This service kit dramatically
reduces downtime and maintenance time, lowering operational costs.
It is particularly beneficial for construction machinery rental
firms and field service teams needing fast turnaround in emergency
situations. By enabling swift component replacement and routine
servicing, this hydraulic motor minimizes equipment idle time and
ensures continuous productivity on demanding job sites.
3. The Rexroth A6VM hydraulic motor is equipped with an integrated
pre‑filter and dual‑stage fluid purification system that removes up
to 99.9% of particles and moisture before the fluid enters the pump
chamber. By effectively reducing contamination and wear, this axial
piston motor enhances component longevity and reliability. The
quick‑change pre‑filter design allows maintenance personnel to
replace elements within minutes, minimizing downtime. Ideal for
dusty and humid environments such as mining operations, tunnel
boring, and slurry pumping, this piston motor ensures consistent
fluid cleanliness and uninterrupted performance.
The Analysis For Rexroth A6VM Piston Motor Common Breakdown:
1. In failure scenario number 19, uneven lubrication or
contaminated oil passages within the motor can lead to dry contact,
accelerated wear, and significantly shortened service life.
Symptoms include increased noise, fluid leakage, and premature
component failure. Corrective actions include disassembling the
motor to clean oil channels thoroughly, inspecting and repairing
damaged lubrication lines or orifices, re-lubricating with
high-performance hydraulic oil, and verifying that all lubrication
points receive consistent fluid flow. Additionally, install
lubrication monitoring sensors to provide real-time feedback on
lubrication health and prevent future issues.
2. In failure scenario number 20, external vibration or improper
installation can cause stress concentrations at the
motor-to-equipment interface, potentially leading to keyway or
flange cracking, resulting in leakage or misalignment. Indicators
include unusual noises, fluid seepage, and motor displacement.
Recommended preventive measures involve verifying alignment and
torque specifications during installation, employing flexible
couplings or vibration isolators to mitigate stress, and conducting
nondestructive testing on connection points. Additionally, perform
vibration analysis post-installation to confirm connection
integrity and ensure long-term stability of the motor-mount
assembly.
3. In failure scenario number 21, malfunctioning feedback sensors
or loose wiring can cause the electronic control system to receive
inaccurate speed and pressure signals, leading to unstable motor
output, speed oscillations, and overshoot phenomena. Symptoms
include the system failing to reach commanded setpoints and
triggering fault alarms. Recommended corrective actions involve
inspecting and calibrating sensors, securing connectors, and using
oscilloscopes or diagnostic tools to monitor signal waveforms and
ensure accurate feedback. Replace faulty sensors and associated
wiring harnesses if necessary to restore electronic control
precision and system stability.
