Product Overview
The Rexroth A10VSO 18 DR/31R-PPA12N00 (Material Number: R910991846) is a high-performance axial piston variable displacement pump engineered by Bosch Rexroth for open-circuit industrial hydraulic systems. Featuring a swashplate design with a nominal displacement of 18 cm³/rev, this pump delivers precise, load-sensing control through its DR pressure regulator, maintaining constant system pressure by automatically adjusting displacement to match flow demand. The A10VSO series is globally recognized for its robust construction, high power density, and exceptional volumetric efficiency, making it the benchmark choice for demanding continuous-duty applications in plastic injection molding, metallurgical processing, and heavy industrial machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Variable Displacement) |
| Model Designation | A10VSO 18 DR/31R-PPA12N00 |
| Material Number | R910991846 |
| Nominal Displacement | 18 cm³/rev |
| Control Type | DR — Pressure Regulator (Constant Pressure Control) |
| Operating Pressure | Up to 280 bar (continuous), 350 bar (peak) |
| Mounting & Connection | SAE 2-bolt flange, ISO 3019-2 standard mounting |
| Shaft Type | Spline shaft (PPA12N00 configuration) |
| Circuit Type | Open Circuit |
Engineering Features & Advantages
- Precision Swashplate Control: The DR pressure regulator provides fast, accurate response to system pressure changes, automatically reducing displacement to near-zero when the set pressure is reached — minimizing heat generation and energy consumption.
- High Power Density: Compact axial piston design delivers high pressure and flow from a small envelope, ideal for space-constrained machine installations.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with hardened piston shoes, precision-ground cylinder bores, and a robust bearing arrangement for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification.
- Low Noise Operation: Optimized port plate and swashplate geometry reduce pressure pulsation and airborne noise, improving workplace conditions.
Typical Industrial Applications
The Rexroth A10VSO 18 DR/31R is widely deployed in plastic injection molding machines, metallurgical presses and rolling mills, CNC machine tool hydraulic power units, and general industrial hydraulic systems requiring precise pressure
PRODUCT IMAGES
Rexroth A10VSO 18 DR/31R-PPA12N00 / R910991846 Axial Piston Variable Pump
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Rexroth A10VSO 18 DR/31R-PPA12N00 / R910991846 Variable Displacement Pump. This Germany-made hydraulic pump features a pressure-controlled variable displacement design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.