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1. How to interpret the model “A10V45dr3RP8b00” and the A10V series naming convention?
| Model Segment | Technical Explanation |
|---|---|
| A10V | Series Identifier: Axial Piston Variable Displacement Pump (Industrial-grade, medium-to-high pressure series for mobile and stationary systems) |
| 28/45/63/71 | Nominal Displacement: Corresponding to 28/45/63/71 cm³/rev (cubic centimeters per revolution) |
| dr | Control Type: Hydraulic Pilot Control with Pressure Compensation (d = dual pressure/flow control; r = pressure-compensated regulation for stable output) |
| 3 | Mounting Flange: SAE 3-bolt Flange (Complies with SAE J744 Class 3, standard industrial mounting interface) |
| R | Rotation Direction: Clockwise Rotation (Viewed from the shaft end; counterclockwise denoted as “L”) |
| P8 | Shaft Type: Tapered Keyed Shaft (ISO 286-2 standard; P = tapered design; 8 = shaft tolerance class) |
| b00 | Configuration Code: Factory Standard Calibration (Optimized for general-purpose applications; no custom modifications) |
2. What are the core technical parameters of the A10V series pumps?
| Parameter | A10V28dr | A10V45dr | A10V63dr | A10V71dr |
|---|---|---|---|---|
| Nominal Displacement | 28 cm³/rev | 45 cm³/rev | 63 cm³/rev | 71 cm³/rev |
| Maximum Working Pressure | 350 bar (5075 psi) | 350 bar (5075 psi) | 350 bar (5075 psi) | 350 bar (5075 psi) |
| Rated Working Pressure | 315 bar (4568 psi) | 315 bar (4568 psi) | 315 bar (4568 psi) | 315 bar (4568 psi) |
| Maximum Speed | 2800 rpm | 2600 rpm | 2400 rpm | 2300 rpm |
| Minimum Speed | 500 rpm | 500 rpm | 500 rpm | 500 rpm |
| Oil Viscosity Range | 10-400 mm²/s | 10-400 mm²/s | 10-400 mm²/s | 10-400 mm²/s |
| Recommended Oil Temperature | -20°C to +90°C (-4°F to 194°F) | Same as left | Same as left | Same as left |
| Oil Filtration Requirement | ≥10 μm (ISO 4406 Class 16/13) | Same as left | Same as left | Same as left |
| Shaft Diameter | 30 mm (1.18 in) | 35 mm (1.38 in) | 40 mm (1.57 in) | 42 mm (1.65 in) |
| Mounting Standard | SAE J744 (3-bolt flange) | Same as left | SAE J744 (4-bolt flange) | Same as left |
| Inlet/Outlet Port Size | Inlet: G1″, Outlet: G3/4″ | Inlet: G1 1/4″, Outlet: G1″ | Inlet: G1 1/2″, Outlet: G1 1/4″ | Inlet: G1 1/2″, Outlet: G1 1/4″ |
| Dry Weight | ~22 kg (48.5 lbs) | ~32 kg (70.5 lbs) | ~45 kg (99 lbs) | ~52 kg (114.6 lbs) |
| Volumetric Efficiency | ≥95% | ≥95% | ≥95% | ≥95% |
| Mechanical Efficiency | ≥92% | ≥92% | ≥92% | ≥92% |
3. What are the key performance advantages of the A10V series pumps?
- Precise Variable Control: Hydraulic pilot pressure compensation (dr control type) enables stepless displacement adjustment (0-100%), matching flow output to system load and reducing energy consumption by 20-25% compared to fixed-displacement pumps.
- High-Pressure Stability: Reinforced cylinder block (alloy steel) and precision-machined valve plate ensure consistent performance at 350 bar max pressure, with minimal pressure ripple (<5% at rated load).
- Compact & Durable Design: Small footprint and lightweight structure (22-52 kg) for easy installation in space-constrained equipment; nodular cast iron housing resists vibration and impact in mobile applications.
- Low Noise Operation: Optimized swashplate profile and hydraulic damping structure reduce noise to ≤78 dB(A) (small models) and ≤81 dB(A) (large models) at rated speed, improving operator comfort.
- Wide Adaptability: Operates reliably in extreme temperatures (-20°C to +90°C) and variable oil viscosities (10-400 mm²/s), suitable for both indoor industrial systems and outdoor mobile machinery.
- Easy Maintenance: Modular design allows quick replacement of seals, bearings, and control components; built-in pressure test points simplify troubleshooting without disassembly.
