Construction Machinery Piston Motor for Mobile Cranes 107cm³ 400
Bar Rating
Features:
1. Overall high efficiency architecture reduces energy loss and
boosts transmission performance.
2. Excellent starting characteristics enable smooth, shock-free
engine initiations.
3. Economically optimized design minimizes manufacturing costs to
enhance overall ROI.
4. One-piece tapered piston with integrated piston rings provides
superior sealing integrity.
5. Premium materials and precision machining extend the operational
life of the motor.
6. Designed for high-pressure conditions to maintain performance
under extreme loads.
7. Optimized construction and materials deliver excellent vibration
damping performance.
8. High sealing integrity minimizes internal fluid leakage,
reinforcing system reliability.
9. Rapid response design enables flexible control and adapts to
instantaneous load changes.
10. Superior dynamic performance ensures stability and quick
response under fluctuating loads.a
Technical data:
| Size | NG | 45 | 56 | 63 | 80 | 90 | 107 | 125 | 160 | 180 |
| Displacement geometric, per revolution | Vg | cm3 | 45.6 | 56.1 | 63 | 80.4 | 90 | 106.7 | 125 | 160.4 | 180 |
| Speed maximum | nnom | rpm | 5600 | 5000 | 5000 | 4500 | 4500 | 4000 | 4000 | 3600 | 3600 |
| nmax | rpm | 6200 | 5500 | 5500 | 5000 | 5000 | 4400 | 4400 | 4000 | 4000 |
| Input flow at nnom and Vg | qV | L/min | 255 | 281 | 315 | 362 | 405 | 427 | 500 | 577 | 648 |
Torque
at Vg and | Δp = 350 bar | T | Nm | 254 | 313 | 351 | 448 | 501 | 594 | 696 | 893 | 1003 |
| Δp = 400 bar | T | Nm | 290 | 357 | 401 | 512 | 573 | 679 | 796 | 1021 | 1146 |
| Rotary stiffness | c | kNm/rad | 4.18 | 5.94 | 6.25 | 8.73 | 9.14 | 11.2 | 11.9 | 17.4 | 18.2 |
| Moment of inertia for rotary group | JGR | kgm2 | 0.0024 | 0.0042 | 0.0042 | 0.0072 | 0.0072 | 0.0116 | 0.0116 | 0.022 | 0.022 |
| Maximum angular acceleration | a | rad/s2 | 14600 | 7500 | 7500 | 6000 | 6000 | 4500 | 4500 | 3500 | 3500 |
| Case volume | V | L | 0.33 | 0.45 | 0.45 | 0.55 | 0.55 | 0.8 | 0.8 | 1.1 | 1.1 |
| Mass (approx.) | m | kg | 13.5 | 18 | 18 | 23 | 23 | 32 | 32 | 45 | 45 |
Specifications:
| Warranty | 12 months |
| Transport Package | Standard Export Wooden Case |
| Certification | ISO9001: 2000 |
| Type | Construction machinery piston motor |
| Production Capacity | 2000-3000 pcs/month |
| HS Code | 8412299090 |
| Application | Aerial work platform, road roller, Crawler Crane |
| Maximum torque | 1003Nm |
| Delivery Time | 15-30 Days after Payment |
| Displacement | 45-180cc |
Applications:
1. In printing machinery, the A2FM motor delivers rapid response
and precise control essential for high-speed printing operations.
When paired with an axial piston motor, it provides efficient
hydraulic transmission and accurate flow regulation, ensuring
consistent print quality. Its advanced bent‐axis design and compact
build contribute to superior energy conversion and reduced wear,
enhancing operational stability. This reliable hydraulic solution
meets the rigorous demands of modern printing processes, ensuring
smooth and high-quality production while guaranteeing exceptional
overall efficiency and flawless print performance.
2. In printing machinery applications, the A2FM motor provides
stable hydraulic output and high efficiency for rapid printing
operations. When integrated with a hydraulic motor, it ensures fast
response and accurate flow regulation, which significantly improves
print quality and production speed. Its advanced bent‐axis design
and optimized leakage control reduce energy consumption and wear,
enhancing overall performance. This reliable hydraulic solution is
the ideal choice for modern printing processes, delivering
consistent and high-quality results while ensuring unmatched
productivity and flawless operational efficiency.
3. For silage cutter drives, 500bar peak pressure handles instant
cutting torque demands. Bidirectional rotation enables blade
obstacle avoidance, while integrated temperature sensors prevent
overheating shutdowns from material wrapping, achieving 99.5%
operational reliability.
Competitive Advantage:
1. The A2FM motor is fully compatible with modern digital control
systems, allowing for precise monitoring and remote adjustments,
and when combined with a piston motor, it facilitates automated
tuning and real‐time performance tracking, making it an ideal
solution for smart industrial systems that demand advanced control
capabilities, ensuring unparalleled automation.
2. The A2FM motor incorporates advanced safety features that
protect both the equipment and operators, and when used with a
hydraulic motor, it ensures secure pressure regulation and rapid
shutdown in emergency situations, thereby reducing risk and
safeguarding industrial processes through reliable,
high‐performance hydraulic control, guaranteeing utmost operational
safety always consistently.
3. IP69K protection with modular seals allows 5,000-hour operation
in 30% abrasive drilling fluid. Seal replacement time reduced to 45
minutes for downhole pump drives.
The Analysis For Rexroth A2FM Fixed Displacemen Piston Motor Common
Breakdown:
1. A malfunction in the cooling system can cause the A2FM motor’s
temperature to rise abnormally, adversely affecting component
stability and reducing service life. Insufficient cooling may be
due to clogged radiators or faulty fans. Prompt inspection of
cooling components and maintenance of the axial piston motor’s
cooling interfaces are crucial to restore proper heat dissipation.
2. Failure of sensor feedback in the A2FM motor may lead to
inaccurate monitoring of pressure, flow, and temperature, impairing
automatic adjustments and system safety. Such issues are usually
caused by circuit faults or physical damage. Thorough testing of
the control module and evaluation of the hydraulic motor’s sensor
data are essential to restore proper feedback.
3.Thermal Deformation of Port Plate Increases Internal Leakage:
＞5μm flatness deviation under 420bar shock pressure reduces
efficiency to 82%. Use 42CrMo4 steel with enhanced cooling.
