Shaoyang Victor Hydraulic Co., Ltd.
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Construction Machinery Piston Motor Cast Iron 400bar Compact Design
Features:
1. Fixed mounting structure ensures stable and reliable operation within hydraulic systems.
2. Skewed axial piston design optimizes power transmission efficiency in hydraulic drives.
3. Engineered for both open and closed hydrostatic circuits to enable versatile applications.
4. Customized for mobile and stationary applications providing a broad spectrum of solutions.
5. Output speed is directly proportional to pump flow and motor displacement for precise control.
6. Torque output increases with the pressure differential, addressing high load requirements.
7. A wide range of finely graded sizes enables seamless integration with drive cases.
8. High power density design maximizes efficient hydraulic energy conversion.
9. Bent-axis rotary group configuration enhances dynamic response with precision matching.
10. Compact design minimizes overall dimensions and weight, saving valuable space.
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 | 1 Year |
| Transport Package | Standard Export Wooden Case |
| Structure | Axial Piston motor |
| Type | Mobile machinery piston motor |
| Production Capacity | 2000-3000 pcs/month |
| HS Code | 8412299090 |
| Application | Mobile crane, Combine Harvester, Concrete mixer truck |
| Maximum speed | 3600rpm |
| Delivery Time | 15-30 Days after Payment |
| Displacemen | 45-180cc |
Applications:
Competitive Advantage:
1. The A2FM motor provides precise flow control capabilities that ensure accurate fluid distribution and pressure regulation, and when integrated with a piston motor, it offers dynamic adjustments to match system demands, resulting in enhanced operational stability and improved performance for complex hydraulic applications, delivering unmatched flow precision consistently for excellence.
2. The A2FM motor is highly versatile, performing efficiently in both mobile and stationary applications, and when combined with a hydraulic motor, it adapts seamlessly to varying operational conditions, providing reliable performance and precise control for a wide range of industrial machinery and equipment, ensuring exceptional versatility and reliability for excellence.
3. The closed-loop compatible axial piston motor enables 0-30m/min stepless speed regulation with variable pumps. Integrated temperature compensation maintains ＜1.5% flow variation by auto-adjusting viscosity from -20℃ to +60℃.
The Analysis For Rexroth A2FM Fixed Displacemen Piston Motor Common Breakdown:
1. Excessive friction due to poor lubrication in the A2FM motor may lead to heat accumulation and localized overheating, accelerating component aging and reducing overall efficiency. It is imperative to inspect the lubrication system, replenish with high-quality hydraulic oil, and evaluate the piston motor’s operating condition to minimize friction and restore performance.
2. Foreign particle intrusion into the hydraulic system can cause accelerated wear of critical components, blockage of flow channels, and seal damage in the A2FM motor, leading to reduced efficiency. Enhanced filtration, regular hydraulic oil quality checks, and inspection of the hydraulic motor’s protective measures are essential to prevent contaminant ingress.
3. Excessive Spherical Joint Clearance Generates Noise: ＞0.03mm radial clearance causes 2000Hz noise ＞90dB(A). Replace piston-rod assembly when sphericity exceeds IT6 tolerance.