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Rexroth Proportional Amplifier | VT-VRPA2-1-1X | VT-VSPA2-1-2X | R900979887 | R901002090
| Model Number | R900979887 VT-VRPA2-1-1X/V0/T1, R901002090 VT-VSPA2-1-2X/V0/T1 |
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Product Description
Rexroth VT-VRPA2 & VT-VSPA2 Series Proportional Valve Amplifiers
Product Overview:
The Bosch Rexroth VT Series proportional amplifiers serve as the electronic brain of hydraulic systems, specifically designed to drive proportional valves without integrated electronics (OBE). The VT-VRPA2 (R900979887) is a high-performance analog amplifier typically used for proportional pressure valves with electrical feedback. In contrast, the VT-VSPA2 (R901002090) represents the advanced 2X series, optimizing spool dynamic response through precise current control. For 2026 high-precision machine tools, heavy-duty stamping equipment, and automated control systems, these cards provide ultimate hydraulic precision via superior noise immunity and current stability.
Featured models: R900979887 (VT-VRPA2-1-1X/V0/T1) and R901002090 (VT-VSPA2-1-2X/V0/T1).
Key Technical Advantages:
Precision Spool Positioning: Optimized control logic for valves with or without LVDT position feedback, ensuring minimal hysteresis.
Versatile Parameter Calibration: On-board high-precision potentiometers allow for manual fine-tuning of Gain, Zero Point, and Ramp Times.
Advanced Driving Circuitry: Utilizes constant current output and Pulse Width Modulation (PWM) technology to minimize the impact of solenoid heat on control accuracy.
T1 Enhanced Configuration: Features excellent signal consistency and power polarity protection, ensuring long-term durability in complex electrical environments.
Standard Eurocard Format: Complies with standard Eurocard design and 32-pin interface, facilitating quick installation and maintenance.
Detailed Specifications & Parameters:
Featured Model Matrix:
R900979887 (VT-VRPA2-1-1X): Design series 1X, commonly used in proportional pressure regulation systems.
R901002090 (VT-VSPA2-1-2X): Advanced series 2X, providing a broader range of parameter adjustments.
Technical Specifications:
Supply Voltage: 24V DC (18V – 35V).
Command Signal (V0): 0 to $\pm 10\text{V}$.
Output Current: Maximum adjustable up to 2.5 A (depending on solenoid specifications).
Connection: 32-pin Eurocard socket (DIN 41612).
R901002090 VT-VSPA2-1-2X/V0/T1
R901002095 VT-VSPA2-1-2X/V0/T5
0811405063 VT-VRRA1-527-20/V0/2STV
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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