A6VM Construction Machinery Piston Motor-250cc/r Heavy Load 400 Bar Nominal Pressure
Brand Name:SY Hydraulic
Certification:China Classification Society Certification
Model Number:SY-A6VM
Minimum Order Quantity:1pc
Delivery Time:15-30 days
Payment Terms:T/T
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Shaoyang Hunan China
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The intersection of Century Avenue and Baima Avenue,Shaoyang Economic and Technological development Zone,Shaoyang city,Hunan Province
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Product Details
A6VM Construction Machinery Piston Motor-250cc/r Heavy Load 400 Bar Nominal Pressure
Features:
1. Bent-Axis Construction for optimized efficiency and torque
2. Tapered Piston Arrangement Enhancing Hydraulic Efficiency
3. Designed for Open-Loop Hydraulic Systems
4. Engineered for Closed-Loop Hydraulic Circuits
5. Extensive Control Range for variable operating conditions
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 | Agricultural axial piston motor |
Color | Available any color |
HS Code | 8412299090 |
Application | Agricultural machinery (harvesters, tractors) |
Maximum pressure | 450 bar |
Delivery Time | 15-30 Days after Payment |
Displacement | 71-250 cm3 |
Applications:
1. In compact servo‑hydraulic systems for confined spaces, the
Rexroth A6VM hydraulic motor combines a compact installation
footprint with rapid response characteristics to seamlessly
integrate with high‑precision servo amplifiers, enabling
micron‑level position and velocity control. Its built‑in dead‑band
compensation feature and pulsation suppression chamber eliminate
fine vibrations and control dead zones, ensuring smooth and linear
actuator movements. With optional external cooler interfaces and
oil temperature monitoring ports, this piston motor extends the
operational envelope under continuous high‑load conditions, meeting
the stringent demands of automated equipment requiring small yet
powerful servo systems.
2. In the power distribution system of concrete pump trucks, the
A6VM piston motor’s high power density and dual-side bearing
support ensure stable output even during multi-valve switching
operations, reducing guide bushing wear. With an integrated
load-sense interface, this axial piston motor intelligently adjusts
flow according to load variations, maintaining efficient, low-noise
performance during high-pressure concrete pumping and effectively
lowering overall energy consumption.
3. In the swing drive of excavators used in building construction,
the Rexroth A6VM axial piston variable displacement motor delivers
seamless transition from low-speed high-torque operation to
high-speed precise movements thanks to its stepless variable
displacement design. Even under harsh jobsite conditions, this
hydraulic motor leverages its high-pressure sealing system and
tungsten carbide valve plate to maintain consistent power delivery,
significantly enhancing operational efficiency and response times.
Competitive Advantage:
1. Utilizing modular additive‑manufactured components such as an aluminum fluid channel network and lightweight composite housing, the Rexroth A6VM axial piston motor achieves up to a 15% weight reduction while maintaining mechanical strength and corrosion resistance. This lightweight hydraulic motor improves equipment energy efficiency and payload capacity, making it ideal for weight‑sensitive mobile machinery and aerial work platforms. By combining innovation in manufacturing with proven hydraulic performance, this piston motor supports greener operations and enhanced machine agility.
2. Compatible with a wide voltage range electro‑hydraulic proportional control unit, the Rexroth A6VM piston motor interfaces seamlessly with various power systems. Its modular proportional valve cartridge design enables smooth transitions between high‑ and low‑pressure operating modes, preventing shock loads from damaging system components. Widely employed in rail vehicle drives, electric port stackers, and power grid failover applications, this axial piston motor maintains stable operation under variable electrical conditions, enhancing reliability and extending service intervals.
3. With optimized trigger logic and valve spool dynamics, the Rexroth A6VM hydraulic motor reduces valve shifting delays to under 10 milliseconds, enabling rapid transition and precise positioning. This high‑response performance is critical in automated assembly lines, stamping presses, and multi‑station machining centers, where micro‑position adjustments and fast repeatability are essential. The piston motor’s quick actuation capabilities translate to higher throughput and tighter process control, making it a top choice for high‑speed automated manufacturing environments.
The Analysis For Rexroth A6VM Piston Motor Common Breakdown:
1. In failure scenario number 25, insufficient fluid flow in the cooling circuit or a clogged heat exchanger can cause localized overheating and thermal runaway, leading to film breakdown and metal-to-metal contact. Symptoms include localized scuffing, accelerated wear, and thermal fault alarms. Recommended measures include cleaning or replacing the heat exchanger, increasing the cooling pump flow rate, and installing temperature monitoring and thermal protection devices to ensure effective cooling and even temperature distribution within the motor.
2. In failure scenario number 26, incorrect positioning of the return line inlet relative to the reservoir can cause poor fluid return and vacuum conditions, leading to cavitation and severe performance fluctuations. Symptoms include unstable power output and increased noise. It is recommended to redesign the return inlet elevation and reservoir height, maintain proper fluid level and return line slope, and install check valves where necessary to ensure stable return flow.
3. In failure scenario number 27, improper parallel or series pump configurations can result in mismatched pressure and flow during multi-mode switching, causing system oscillations and efficiency losses. Symptoms include impact loads and increased energy consumption during transitions. It is recommended to review and adjust the parallel or series arrangement based on operational requirements, calibrate valve switching logic, and incorporate bypass valves or accumulators into the circuit to smooth transitions and mitigate shock loads.
A6VM Construction Machinery Piston Motor-250cc/r Heavy Load 400 Bar Nominal Pressure
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