The Rexroth 4WE6Y62 is a premium, industrial-grade solenoid-operated directional sliding spool valve designed to govern fluid routing vectors in high-performance hydraulic systems. Manufactured under Rexroth’s strict quality tolerances, the 4WE6 size NG06 (CETOP 3) platform is engineered to optimize machine performance by handling massive flow demands with minimal pressure losses.
This specific model features Rexroth’s signature wet armature solenoid technology. The dynamic switching core is completely enclosed inside a pressure-tight, fluid-filled tube. By utilizing the internal hydraulic oil as a natural cushioning medium, mechanical impact wear and noise are radically reduced, and the dynamic shaft seals that are highly prone to weeping in traditional dry solenoids are completely eliminated. The “Y” spool profile combined with the 62 design series revision ensures smooth, positive switching transition dynamics across high duty-cycle manufacturing regimes.
Core Technical Features & Advantages
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Advanced Internal Cast Passages: The valve body housing is cast with streamlined internal fluid paths to ensure laminar flow progression, keeping internal pressure drop ($\Delta p$) minimal under peak volume distributions.
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High Tank Line Surge Rating: Built to safely withstand severe backpressures at the return line (Port T) without risking uncommanded spool shifting or structural stalling.
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Hardened Metallurgy & Minimal Slip: The precision-ground spool features advanced wear-resistant characteristics, maintaining ultra-tight internal clearances and controlling cross-port thermal bypass slip over millions of cycles.
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Flexible Electrical Connectivity: The removable coil configuration allows plant maintenance teams to easily replace or swap coils without breaking into the primary hydraulic circuit seal, minimizing machine downtime.
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Broad Media Compatibility: Fitted with robust industrial seals designed to resist degradation when running standard petroleum-based mineral oils, synthetic alternatives, or water-glycol fluid options.
Primary Applications
The Rexroth 4WE6 series is an essential automated control building block utilized globally across a vast range of industrial manufacturing systems:
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High-precision CNC machine tools, automated tooling fixtures, and robotic clamping blocks
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Plastic processing, thermoforming networks, and injection molding machinery
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Metal stamping, sheet-metal shearing, and automated hydraulic pressing loops
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Multi-station industrial Hydraulic Power Units (HPUs) and centralized manifold systems
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Automated material handling conveyor networks, sorting systems, and lifting platforms
Technical Specifications Table
| Parameter | Value / Specification |
| Brand Name | Bosch Rexroth |
| Model Code | 4WE6Y62 (6X Component Series) |
| Mounting Interface | ISO 4401-03 / Cetop 3 / NFPA D03 / NG06 |
| Actuation Type | Solenoid Operated (Direct-Acting Sliding Spool) |
| Solenoid Type | Wet Armature (Fluid Immersed, Removable Coil) |
| Spool Layout | 3-Position, Spring Centered |
| Spool Type | Y Spool Configuration |
| Maximum Operating Pressure | Ports P, A, B: Up to 350 bar (5,076 psi) / Port T: Up to 210 bar (3,045 psi) |
| Maximum Flow Capacity | Up to 80 L/min (21.1 GPM) depending on loop dynamics |
| Sealing Compounds | High-Grade Industrial NBR Standard / Optional Viton (FKM) |
