Product Overview
The Rexroth KSDER1NA (Material Number R900993075) is a high-performance proportional directional valve engineered for precise, continuous control of hydraulic flow direction and magnitude in industrial drive systems. As part of the Rexroth proportional valve family, this unit features a direct-operated, solenoid-actuated spool design that translates an electrical input signal into a proportional hydraulic output. The valve is designed to deliver smooth, infinitely variable control of actuator speed and direction, making it a critical interface component in closed-loop and open-loop hydraulic circuits where accurate motion control and repeatable response are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Directional Valve (Spool Type, Solenoid Actuated) |
| Model Designation | KSDER1NA / R900993075 |
| Manufacturer | Bosch Rexroth |
| Actuation Type | Proportional Solenoid with Integrated Position Feedback |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per Rexroth specification) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Subplate Mounting) |
| Control Signal | Analog Proportional Input (Voltage/Current per Rexroth Standard) |
| Spool Configuration | Proportional Spool with Metering Notches for Fine Flow Control |
Engineering Features & Advantages
- Precision Proportional Metering: The spool and metering notch geometry enables infinitely variable flow control proportional to the electrical command signal, ensuring accurate actuator speed regulation and smooth directional transitions.
- Integrated Position Feedback: The valve design incorporates feedback capability for enhanced repeatability and hysteresis performance, critical for closed-loop motion control applications.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust solenoid construction and wear-resistant spool-bore pairing for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth standards, ensuring drop-in replacement without modification to existing manifolds or control systems.
- Low Hysteresis & High Resolution: Designed to minimize signal hysteresis and provide fine resolution across the full control range, improving system accuracy and dynamic response.
Typical Industrial Applications
The Rexroth KSDER1NA proportional directional valve is widely deployed in demanding industrial hydraulic systems, including plastic injection molding machines requiring precise injection and clamping force control, metallurgical presses and rolling mills where accurate force and position regulation are critical, CNC machine tools and machining centers for smooth axis motion and tool positioning, and general construction and marine hydraulic systems where reliable proportional flow control under varying load conditions is essential. Its robust design and precise metering characteristics make it suitable for both open-loop and closed-loop industrial drive applications.
PRODUCT IMAGES
REXROTH KSDER1NA / R900993075 Proportional Directional Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- 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 KSDER1NA / R900993075 Solenoid Directional Spool Valve. This Germany-made hydraulic component features a 4/2-way design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.