Shaoyang Victor Hydraulic Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1000 pcs per month |
| Delivery Time | 15-30 days |
| Packaging Details | Standard Export Wooden Case |
| Warranty | 1 Year |
| Torque | 254 Nm |
| Displacement | 45-180 cm3/rev |
| Application | Road roller, Construction Machinery |
| Color | Available at any color |
| Brand Name | SY Hydraulic |
| Model Number | SY-A2FM |
| Certification | China Classification Society Certification |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 1000 pcs per month |
| Delivery Time | 15-30 days | Packaging Details | Standard Export Wooden Case |
| Warranty | 1 Year | Torque | 254 Nm |
| Displacement | 45-180 cm3/rev | Application | Road roller, Construction Machinery |
| Color | Available at any color | Brand Name | SY Hydraulic |
| Model Number | SY-A2FM | Certification | China Classification Society Certification |
| Place of Origin | China | ||
| High Light | Custom Fixed Displacement Piston Motor ，High Pressure Fixed Displacement Piston Motor | ||
Powerful Fixed Displacement Piston Motor for High-Pressure and High-Speed Application
Features:
1. Fixed motor with axial tapered piston rotary group of bent.axis design, for hydrostatic drives in open and closed circuits.
2. For use in mobile and stationary applications.
3. The output speed is dependent on the flow of the pump and the displacement of the motor.
4. The output torque increases with the pressure differential between the high-pressure and the low-pressure side.
5. Finely graduated sizes permit far-reaching adaptation to thedrive case.
6. High power density.
7. Small dimensions.
8. High total efficiency.
9. Good starting characteristics.
10. Economical design.
11. One-piece tapered piston with piston rings for sealing.
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 | |||
| Maximum torque | 1273 Nm | |||
|
Delivery Time
|
15-30 Days after Payment
|
|||
| Displacemen |
45-180cc
|
|||
Applications:
Competitive Advantage:
1. The bent-axis axial piston motor utilizes 40° angular alignment to optimize torque transmission paths, with rigid piston-driveshaft connections maintaining 95% mechanical efficiency under 450bar peak pressure, ideal for heavy-duty start-stop applications like concrete mixer drum drives.
2. The integral piston ring design with double-sealing barriers resists contaminants ≤15μm, achieving 20,000-hour maintenance-free operation under NAS 1638 Class 9 oil cleanliness, drastically reducing mine equipment maintenance costs.
3. With modular flanges compliant to ISO 3019-2 and SAE J744 standards, the hydraulic motor enables rapid planetary gearbox replacement on marine deck machinery, reducing port equipment downtime by 50%.
4. Equipped with temperature-compensation valves, the axial piston motor automatically adjusts oil viscosity from -40℃ to +80℃, maintaining ≤±2% torque stability for wind turbine pitch systems in polar conditions.
5. Achieving 3.2kW/kg power density with aluminum alloy housing reduces robotic joint drive unit weight by 18% while meeting EN 15000 safety standards, enhancing agile material handling performance.
The Analysis For Rexroth A2FM Fixed Displacemen Piston Motor Common Breakdown:
1. Swashplate Angle Deviation Causes Torque Fluctuation: Spring preload reduction or foreign object jamming in variable mechanism leads to swashplate angle deviation. Symptoms include >±5% torque fluctuation under constant pressure. Solution involves disassembling piston chamber, replacing 50μm orifice filters, and recalibrating neutral sensor.
2. Piston Abnormal Wear Reduces Volumetric Efficiency: Over 15μm clearance between piston and cylinder under NAS 10 contaminated oil causes <85% efficiency. Restore oil to NAS 7 via offline filtration and replace hard-chrome plated pistons.
3. Scratched valve Plate Induces Pressure Pulsation: Metal debris (>20μm) in porting area causes >±10bar pressure ripple at 350bar. Regrind port plate to Ra0.2μm and install ≥95% efficient magnetic return filters.
4. Excessive Bearing Clearance Triggers Mechanical Vibration: Conical roller bearing clearance >0.08mm causes >5m/s² radial vibration. Adjust preload to 120-150N·m with hydraulic tensioner and relubricate with NLGI 2 grease.
5. Inadequate Housing Cooling Causes Oil Overheat:Dust accumulation (>2mm) on fins leads to >90℃ oil temperature at 300bar/50℃ ambient. Clean fins with 0.6MPa air and add auxiliary fans (≥6m/s airflow).
Company Details
Business Type:
Manufacturer
Year Established:
1968
Total Annual:
400000000-500000000
Employee Number:
400~600
Ecer Certification：
Verified Supplier
Shaoyang Victor Hydraulic Co., LTD. (formerly Shaoyang Hydraulic Parts factory), founded in 1968, is one of the three pillar enterprises of china's hydraulic industry directly under the former Ministry of Machinery industry, the national fixed-point production of hydraulic components, cylinders,... Shaoyang Victor Hydraulic Co., LTD. (formerly Shaoyang Hydraulic Parts factory), founded in 1968, is one of the three pillar enterprises of china's hydraulic industry directly under the former Ministry of Machinery industry, the national fixed-point production of hydraulic components, cylinders,...
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