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Rexroth A4VSO355DRG/30R-PPB13N00 Hydraulic Pump
Overview
The Rexroth A4VSO355DRG/30R-PPB13N00 is a high-performance axial piston variable displacement pump manufactured by Bosch Rexroth. As part of the A4VSO series, this pump features a swashplate design and is engineered for open-circuit hydraulic drive systems, delivering precise control of fluid flow and exceptional reliability in demanding industrial applications. The A4VSO series is widely recognized for its high power density, low noise operation, excellent suction characteristics, and very long service life.
Technical Features
Swashplate Axial Piston Design — The pump utilizes a swashplate-type axial piston variable displacement design specifically tailored for open-circuit hydrostatic transmissions. The flow output is proportional to the input drive speed and displacement volume, and by adjusting the swashplate angle, output flow can be infinitely varied. This design ensures optimal conversion of mechanical energy into hydraulic energy.
High Displacement & Pressure Capacity — The pump has a displacement of 355 cm³ per revolution, making it suitable for high-flow industrial applications. It operates at a nominal pressure of 350 bar and can withstand maximum intermittent pressures up to 400 bar. The maximum flow rate is 532 L/min at 1500 rpm, with a rated power of 310 kW and a torque output of 1,976 Nm at 350 bar.
DRG Remote Pressure Control — The pump is equipped with DRG control, which is a pressure control with a remote cut-off function. This control system maintains a constant maximum pressure at the pump outlet. Unlike standard DR control, DRG allows the pressure setting to be adjusted remotely via an external pilot relief valve. This feature is particularly useful when multiple axial piston pumps are operating in parallel, as it allows all pumps to share a common remote pressure setting.
Excellent Suction Performance — The A4VSO series features superior suction characteristics, ensuring reliable operation even under challenging inlet conditions and reducing the likelihood of cavitation. The pump can work normally under low oil level and high vacuum conditions.
Low Noise Operation — The pump is designed for low noise levels and minimal flow pulsation, enhancing operator comfort and supporting environmental compliance in noise-sensitive industrial environments.
Long Service Life & Robust Construction — Designed with high-quality materials, wear-resistant components, and a robust cast iron construction, the pump is built for long-term reliability in demanding industrial environments. The pump's drive shaft can absorb both axial and radial loads.
Through-Drive Capability — The pump features through-drive capability, allowing for the mounting of additional pumps up to the same nominal size directly onto it without requiring separate coupling mechanisms. This modular approach facilitates flexible system design and expansion, enabling compact multi-pump configurations.
Short Control Response Times — The pump features short control response times, ensuring rapid adaptation to changing system demands and precise operation in dynamic hydraulic applications.
High Power-to-Weight Ratio — The pump offers a high power-to-weight ratio, contributing to space-saving installation and efficient system design while enabling higher performance in a more compact footprint. The pump's weight is approximately 207 kg.
Optical Swivel Angle Indicator — The pump features an optical swivel angle indicator, providing a clear visual signal of the swashplate position, which facilitates easy monitoring and adjustment during operation and maintenance.
Metric Version & Standardized Mounting — Designed as a metric version, the pump adheres to international standards and specifications. It features a PPB13N00 porting configuration: PP indicates NBR seals, B indicates a 4-hole ISO flange mounting, and N00 indicates no auxiliary pump and no through-drive shaft extension. The 30R indicates Series 30 with clockwise rotation (viewed from shaft end).
Wide Operating Range — The pump operates effectively with mineral oil-based hydraulic fluids (HLP according to DIN 51524) across a wide viscosity and temperature range. It is also compatible with water-glycol hydraulic fluids for sizes 180-355.
High Reliability & Low Maintenance — With its robust construction, high-quality materials, and wear-resistant components, the pump ensures long-term operational stability with minimal maintenance requirements.
Key Functionalities
Stepless Variable Displacement — The flow rate can be infinitely varied by adjusting the swashplate angle, providing precise, stepless control over hydraulic output from zero to maximum displacement across the entire operating range.
Remote Pressure Cut-Off — The DRG control adds a maximum pressure limiting capability that can be controlled remotely. When system pressure reaches the pressure cut-off setting (adjustable via an external pilot relief valve), the pump reduces its displacement to maintain that maximum pressure, protecting the system from overpressure conditions. This feature is particularly useful for parallel pump systems where multiple pumps share a common remote pressure setting.
Open-Circuit Hydrostatic Transmission — The pump is specifically designed for open-circuit operation, where fluid returns to the reservoir after each cycle, making it ideal for industrial hydraulic systems requiring consistent and powerful operation.
Multiple Pump Configurations — The through-drive capability allows the pump to serve as a primary unit driving secondary pumps (axial piston pumps, gear pumps, or radial piston pumps) up to the same nominal size, reducing system complexity and enabling compact, space-saving hydraulic system designs.
Energy Efficient Operation — The DRG pressure control ensures that the pump delivers only the flow required to maintain the set pressure, automatically adjusting displacement in response to system demands. This reduces hydro-mechanical losses, minimizes heat generation, and lowers power consumption.
Overload Protection — The pump incorporates built-in high-pressure relief functions to protect the system from excess pressure, ensuring safe operation under varying load conditions. The remote pressure cut-off provides an additional layer of system protection.
Clockwise Rotation — The pump is designed for clockwise rotation when viewed from the shaft end, denoted by the "R" in its model code, ensuring proper operation and compatibility with other hydraulic components.
High Reliability & Low Maintenance — With its robust construction, high-quality materials, and wear-resistant components, the pump ensures long-term operational stability with minimal maintenance requirements, reducing downtime and total cost of ownership.
Application Sectors
The Rexroth A4VSO355DRG/30R-PPB13N00 hydraulic pump is designed for heavy-duty industrial applications requiring high-pressure, high-power hydraulic drives with remote pressure control capabilities. The A4VSO series is widely used across a broad spectrum of industries:
| Industry Sector | Typical Applications |
|---|---|
| Steel & Metallurgy | Rolling mills, continuous casting lines, forging presses, steel mill hydraulic stations, slab handling equipment, shearing machines, metallurgical machinery |
| Ceramic & Refractory Presses | Ceramic press machines, brick presses, refractory material presses, tile presses, ceramic factory hydraulic equipment |
| Forging & Heavy Presses | Hydraulic forging presses, die-casting machines, heavy-duty presses |
| Mining Equipment | Conveyor drives, crushers, excavators, loaders, material handling systems, mining machinery |
| Plastics & Rubber Machinery | Plastic injection molding machines, blow molding equipment, rubber processing machinery, extruders, aluminum profile extruders |
| Marine & Offshore | Ship hydraulic systems, deck machinery, marine cranes, steering gear, shipbuilding and maintenance equipment |
| Petroleum & Petrochemical | Oil field machinery, drilling pumps, mud pumps, petrochemical equipment |
| Machine Tools & CNC | CNC machine tools, heavy machine tool controls, industrial automation |
| Construction Machinery | Heavy construction equipment, excavators, loaders, concrete pump trucks, drilling equipment |
| Power Generation | Coal handling systems, power plant hydraulic equipment |
| Paper Manufacturing | Paper machinery hydraulic systems, paper mill equipment |
| Agricultural Machinery | Combine harvesters, heavy agricultural equipment |
Performance Specifications
| Specification | Value |
|---|---|
| Manufacturer | Bosch Rexroth |
| Series | A4VSO |
| Model Code | A4VSO355DRG/30R-PPB13N00 |
| Pump Type | Axial piston variable displacement pump (swashplate design) |
| Circuit Type | Open circuit |
| Displacement (Vg max) | 355 cm³/rev |
| Nominal Pressure (Continuous) | 350 bar (5,076 psi) |
| Maximum Intermittent Pressure | 400 bar (5,800 psi) |
| Maximum Speed (at Vg max) | 1,500 rpm |
| Maximum Flow Rate | 532 L/min |
| Rated Power (at 350 bar) | 310 kW |
| Torque Output (at 350 bar) | 1,976 Nm |
| Control Type | DRG — Remote pressure control with pressure cut-off |
| Pressure Setting Range | 50 to 350 bar |
| Rotation Direction | Clockwise (R) when viewed from shaft end |
| Shaft Type | Parallel key shaft (DIN 6885) |
| Mounting Type | 4-hole ISO flange mounting (B-type) |
| Porting Configuration | PPB13N00 (NBR seals, parallel key shaft, 4-hole ISO flange) |
| Through-Drive | N00 — No auxiliary pump, no through-drive shaft extension |
| Seals | NBR (nitrile rubber) |
| Housing Material | Cast iron |
| Weight | Approx. 207 kg |
| Fluid Compatibility | Mineral oil-based hydraulic fluids (HLP per DIN 51524), water-glycol |
| Operating Viscosity Range | 12 to 800 mm²/s (optimal: 16–36 mm²/s) |
| Operating Temperature Range (Oil) | -15°C to +80°C (max +90°C intermittent) |
| Ambient Temperature Range | -15°C to +60°C |
| Fluid Cleanliness Requirement | NAS 1638 Class 9 or better (ISO 4406 minimum) |
| Maximum Case Pressure | 4 bar absolute |
| Minimum Suction Pressure | 0.8 bar absolute |
Conclusion
The Rexroth A4VSO355DRG/30R-PPB13N00 is a high-performance axial piston variable displacement pump that exemplifies Bosch Rexroth's decades of expertise in hydraulic drive technology. With its advanced swashplate design, DRG remote pressure control, excellent suction characteristics, through-drive capability, and robust cast iron construction, it delivers exceptional power density, precise flow control, and reliable operation for demanding open-circuit hydraulic systems.
The pump's DRG pressure control functionality is its defining feature, allowing the maximum pressure setting to be adjusted remotely via an external pilot relief valve. This makes it particularly well-suited for applications where multiple pumps operate in parallel and share a common pressure setting. The pressure control maintains a constant maximum pressure at the pump outlet within the control range of 50 to 350 bar, protecting the system from overpressure conditions while ensuring energy-efficient operation.
With low noise operation, high volumetric efficiency, long service life, and a robust 207 kg cast iron construction, this pump is an ideal solution for a wide range of heavy industrial applications — from steel mills, forging presses, and ceramic presses to mining equipment, marine systems, plastics machinery, and machine tool controls.
As a proven, reliable, and energy-efficient solution for industrial hydraulic applications worldwide, the A4VSO355DRG/30R-PPB13N00 stands out as a versatile component where remote pressure control capability, high-pressure performance, and long-term dependability are essential requirements.
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