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Rexroth Piston Motor A6VM 450 Bar Pressure for Mobile Hydraulics

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Rexroth Piston Motor A6VM 450 Bar Pressure for Mobile Hydraulics

Brand Name : SY Hydraulic

Model Number : SY-A6VM

Certification : China Classification Society Certification

Place of Origin : China

MOQ : 1pc

Price : USD 1000-3000 / pc

Payment Terms : T/T

Supply Ability : 1000 pcs per month

Delivery Time : 15-30 days

Packaging Details : Standard Export Wooden Case

Structure : Axial Piston Pump

Cylinder Number : Seven Cylinders

Power : Hydraulic

Performance : 100% as Original

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Rexroth Piston Motor A6VM 450 Bar Pressure for Mobile Hydraulics


Features:


1. Variable motor with axial tapered piston rotary group of bent axis design, for hydrostatic drives in open and closed circuits.

2. Stepless variable displacement design

3. The wide control range enables the variable motor to satisfy the requirement for high speed and high torque.

4. Swashplate angle adjustment mechanism

5. The output speed is dependent on the flow of the pump and the displacement of the motor.

6. High power density

7. Wide control range with hydrostatic transmission.

8. Axial piston configuration

9. Cost savings through elimination of gear shifts and possibilityof using smaller pumps

10. Balanced valve plate



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
Model
SY-A6VM
Place of Origin
China
Type
Rexroth type piston motor
Color
Available any color
HS Code
8412299090
Application
excavator, loader, construction machinery
Max Speed 6300 rpm
Delivery Time
15-30 Days after Payment
MOQ
1 Piece



Applications:


1. In heavy earthmoving applications such as large excavators, the Rexroth A6VM series piston motor leverages its stepless variable displacement design and efficient internal leakage control to deliver pinpoint accuracy in pushing and digging functions. Operating reliably at pressures up to 350 bar, the hydraulic motor maintains exceptionally low output pulsation, resulting in smooth, vibration-free performance that enhances operational productivity and operator comfort. Featuring tungsten carbide valve plate surfaces and precision-machined piston guide bushings, this axial piston motor offers unparalleled durability and minimizes downtime for maintenance, ensuring consistent performance under continuous heavy-duty loads.

2. In crawler bulldozer powertrain installations, the Rexroth A6VM axial piston motor excels with its high starting torque and cavitation-resistant chamber design, providing dependable maneuverability and precise positioning across varying terrains, from soft soil to compacted earth. The modular flange mounting and integrated relief/bypass valves enable seamless integration into existing hydraulic circuits, while safeguarding system integrity under overload conditions without sacrificing control responsiveness. This hydraulic motor’s ability to deliver peak performance under fluctuating loads makes it an ideal choice for demanding earthmoving deployments, maximizing uptime and fuel efficiency.

3. In gantry crane slewing drive applications, the Rexroth A6VM series piston motor features dual-side bearing support and a high-rigidity drive shaft to deliver smooth and secure 360-degree continuous rotation. Its load-sensing interface combined with pressure-compensated control maintains precise speed and positioning in response to varying load demands, dynamically adjusting flow rates for optimal energy efficiency. The low-noise operation of this axial piston motor is especially valuable in port terminals and industrial warehouses, minimizing acoustic disturbance and enhancing workplace comfort without sacrificing lifting performance or reliability.


Rexroth Piston Motor A6VM 450 Bar Pressure for Mobile Hydraulics



Competitive Advantage:


1. The Rexroth A6VM axial piston motor features precision-engineered bearings and high-strength alloy steel components, delivering exceptional wear resistance and durability even under the most demanding conditions. Its internal hydrostatic balancing design reduces vibration and operational noise, ensuring enhanced comfort and safety. Ideal for heavy-duty applications such as construction machinery, mining equipment, and bridge erection, this piston motor combines robust performance with long service life—making it a superior choice for industries requiring reliable power transmission and minimal downtime.


2. The Rexroth A6VM piston motor delivers high power density and infinitely variable displacement, allowing compact installation while providing substantial torque output for precise motion control. Its integrated pressure compensation valve automatically adjusts flow to maintain consistent performance, making it ideal for applications requiring smooth start‑stop operations and variable speed control. From excavators and cranes to port handling machinery, this hydraulic motor offers seamless adaptability, improved efficiency, and reduced energy consumption—aligning perfectly with modern requirements for dynamic industrial automation solutions.


3. The Rexroth A6VM axial piston motor, featuring a dual‑row piston arrangement and optimized flow channels, is capable of handling a rated pressure up to 512 bar and maximum speeds of 2000 rpm. This high‑performance variable displacement motor meets demanding requirements for both power and speed in heavy‑duty applications. Its compact design minimizes footprint, offering greater flexibility in equipment integration. Widely used in oil drilling rigs, tunnel boring machines, and steel manufacturing, this axial piston motor ensures reliable operation under extreme conditions and contributes to increased operational uptime.



The Analysis For Rexroth A6VM Piston Motor Common Breakdown:


1. In failure scenario number 1, the A6VM axial piston motor may experience internal leakage and pressure drop caused by worn seals, insufficient lubrication, or contaminated hydraulic fluid. This fault can lead to reduced torque output and rotational speed, thereby compromising overall system efficiency and potentially resulting in increased vibration and operational noise. It is recommended to inspect and replace all seal elements, flush and replace the hydraulic oil according to the manufacturer’s specifications, and verify the condition of filters and the cooling system to restore optimal performance and extend service life. During reassembly and maintenance, technicians should strictly follow the manufacturer’s prescribed torque values and installation sequence to prevent secondary leakage.


2. In failure scenario number 2, unstable pressure circuits may form inside the A6VM axial piston motor due to leakage on the high-pressure side or blocked return oil passages, resulting in flow fluctuations and motor slipping. Symptoms include operational jerking, intermittent torque loss, and sluggish system response. To troubleshoot, inspect the high-pressure lines and return oil pipes for blockages or restrictions, clean or replace clogged pipelines and filter elements, and verify that the settings of hydraulic control valves and relief valves meet the manufacturer’s specifications. Proper restoration of pressure balance is essential for smooth and reliable motor operation.


3. In failure scenario number 3, excessive hydraulic oil temperature or a malfunctioning cooling system can cause the fluid to exceed permissible temperature thresholds, accelerating seal degradation, reducing lubrication effectiveness, and damaging bearings. This fault typically results in increased noise, reduced output power, and shortened component lifespan. Recommended corrective actions include inspecting the coolant circuit for blockages, cleaning or replacing the oil cooler, calibrating thermal sensors, and selecting hydraulic oil grade that matches the manufacturer’s viscosity requirements to maintain oil temperature within allowable limits and prevent thermal degradation of motor performance.



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