Product Overview
The Rexroth R902106851 is a high-performance solenoid-actuated directional spool valve engineered for precise control of hydraulic fluid flow direction, start, stop, and pressure regulation within industrial hydraulic circuits. Manufactured by Bosch Rexroth, a global leader in drive and control technology, this valve belongs to the renowned directional spool valve family, designed to deliver reliable switching performance and leak-free operation in demanding applications. The R902106851 utilizes a robust solenoid pilot mechanism acting on a hardened, precision-ground spool within a high-strength cast iron housing, ensuring rapid response times and consistent flow characteristics. As a critical control component, it directs pressurized fluid to actuators, cylinders, or motors, enabling directional movement, holding, and load control in complex hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Directional Spool Valve |
| Model Designation | R902106851 |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated) |
| Mounting & Connection | Standard ISO 4401 / CETOP Interface |
| Actuation Type | Solenoid Actuated (AC/DC options) |
| Spool Configuration | 3-Position or 2-Position, 4-Way |
| Flow Rate | Up to 80 L/min (nominal) |
| Response Time | Fast switching (typically < 50 ms) |
Engineering Features & Advantages
- Precision Spool & Sleeve Design: Hardened, precision-ground spool and sleeve assembly ensures minimal internal leakage, low hysteresis, and repeatable flow metering for accurate directional control.
- High-Pressure Solenoid Actuation: Wet-pin AC/DC solenoids provide high switching force, rapid response, and long service life even under continuous duty cycles and high pressure operation.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust cast iron housing and corrosion-resistant finishes for extended durability.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in installation without modification to manifolds or piping.
- Multiple Spool Options: Available in various spool types (e.g., closed center, tandem, float) to match specific circuit requirements for holding, regeneration, or load sensing.
Typical Industrial Applications
The Rexroth R902106851 solenoid directional valve is widely deployed in heavy industrial scenarios requiring reliable directional control of hydraulic actuators. Common applications include plastic injection molding machines for mold clamping and injection sequence control, metallurgical presses for ram advance/retract and pressure holding, construction and marine hydraulics for boom, arm, and bucket positioning, and CNC machine tools for tool clamping, pallet changing, and spindle orientation. Its robust design also suits automated
PRODUCT IMAGES
Rexroth R902106851 Solenoid 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 R902106851 Solenoid Directional Spool Valve. This Germany-made 24V DC hydraulic component features a reliable spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.