🌐 Rexroth RKP-PQI (0811405159) Oil Pump Control Card
The Rexroth RKP-PQI (0811405159) is a precision-engineered oil pump control card designed for dynamic control and monitoring of Rexroth radial piston pumps (RKP series). Built for industrial hydraulic systems that demand superior performance and reliability, the RKP-PQI control card ensures optimal pump regulation, reduced energy consumption, and enhanced system responsiveness. Its intelligent electronic design enables real-time control of pressure, flow, and torque within complex hydraulic circuits, delivering exceptional accuracy and stability across a wide operating range.
⚙️ Product Overview
The RKP-PQI (0811405159) control card serves as the electronic interface between the RKP variable displacement pump and the control system, providing closed-loop control and monitoring functions. The module measures critical system parameters such as pressure and pump displacement, adjusting control signals to maintain optimal operating conditions.
Built with robust signal processing and electromagnetic compatibility (EMC) protection, it performs reliably in demanding industrial environments such as machine tools, injection molding machines, presses, and test stands. It integrates seamlessly with Bosch Rexroth servo-hydraulic systems, enhancing efficiency, precision, and safety.
📊 Technical Datasheet
| Parameter | Specification |
|---|---|
| Model Number | RKP-PQI (0811405159) |
| Product Type | Oil Pump Control Card |
| Manufacturer | Bosch Rexroth |
| Control Function | Pressure, Flow, and Torque Regulation |
| Input Voltage | 24 VDC ±10% |
| Control Signal | ±10 V analog or digital (fieldbus interface optional) |
| Feedback Signal | Pressure transducer, pump position sensor |
| Output Current | Up to 2.5 A continuous |
| Control Mode | Closed-loop proportional control |
| Response Time | < 5 ms |
| Operating Temperature Range | 0°C to +50°C |
| Storage Temperature Range | -25°C to +70°C |
| Protection Rating | IP20 (DIN rail mount) |
| Power Consumption | Approx. 12 W |
| Mounting Type | Panel or DIN rail mounting |
| Connection Type | Screw terminals |
| Communication Interface | Analog / RS485 (optional) |
| Weight | Approx. 0.8 kg |
| Compliance | CE, UL, RoHS |
⚡ Key Features
- Precise Closed-Loop Regulation:
Real-time control of pump pressure, flow, and torque for efficient and stable hydraulic operation. - Dynamic Performance:
Fast signal response and low hysteresis ensure smooth system behavior even under rapidly changing load conditions. - Integrated Diagnostics:
Built-in monitoring functions detect faults, overloads, and signal deviations, helping prevent system damage. - Compact and Robust Design:
Compact electronic architecture designed for industrial environments with high vibration resistance and EMC protection. - Flexible Configuration:
Adaptable to various Rexroth pump models and system configurations, supporting analog or digital control input. - Energy Efficiency:
Optimizes power consumption by controlling pump output according to actual system demand, reducing energy waste. - Simple Installation and Calibration:
Modular structure with clear terminal labeling allows easy installation and quick field calibration.
🧩 Applications
The Rexroth RKP-PQI (0811405159) control card is widely used in industrial hydraulic systems requiring precise oil flow and pressure management. Its reliability and responsiveness make it a preferred choice in:
- Machine Tool Systems: Regulating spindle lubrication and hydraulic tool clamping circuits.
- Injection Molding Machines: Ensuring precise hydraulic motion for injection, clamping, and ejection.
- Hydraulic Presses: Providing accurate pressure and displacement control during forming processes.
- Test Benches: Controlling hydraulic pumps in endurance and performance testing systems.
- Power Units: Maintaining pressure balance and minimizing system wear in centralized lubrication or hydraulic power systems.
🛠️ Installation and Maintenance
The control card is designed for DIN rail or panel mounting inside electrical enclosures. Proper grounding and shielding should be maintained to minimize electromagnetic interference. The unit connects directly to the RKP pump solenoid valve and associated sensors via terminal blocks.
Commissioning involves adjusting control parameters using potentiometers or through the digital interface (depending on model variant). Once installed, it operates autonomously, requiring minimal user interaction.
Maintenance is straightforward—periodic inspection for connector tightness and cleaning of contact points ensures consistent performance. Firmware or software calibration updates can be performed during scheduled system service intervals.
💡 Performance and Reliability
The RKP-PQI (0811405159) combines mechanical precision with digital intelligence, offering stable operation, low noise levels, and extended service life for hydraulic systems. By maintaining optimal pressure and torque control, it protects the pump from overload conditions and improves the overall energy efficiency of the hydraulic circuit.
Its high-speed regulation capability and robust diagnostics make it ideal for mission-critical operations requiring uninterrupted hydraulic performance.
💡 Recommended Similar Products
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🌍 Designed by Bosch Rexroth, the RKP-PQI (0811405159) Oil Pump Control Card represents the pinnacle of hydraulic precision engineering. By combining intelligent electronic control with proven mechanical technology, it ensures smooth, efficient, and dependable hydraulic system operation—making it an essential component for modern industrial automation and energy-optimized fluid power systems.
