Rexroth WSM Series Solenoid Valve WSM06020W WSM08130C Cavity Cartridge

The heavy-duty Rexroth Compatible WSM Series Screw-in Solenoid Cartridge Valves (including international marketplace high-demand designations WSM06020W-61-M-C-N-24DG and WSM08130C-01-C-N-230AG), developed by Chengyuan Hydraulic, are industrial-grade fluid power components optimized for 100% direct drop-in interchangeability within integrated hydraulic manifolds, mobile control blocks, and compact hydraulic power units (HPUs). Manufactured in absolute engineering compliance with Bosch Rexroth technical standards (RE 18136 series), this lineup replicates original thread specifications (metric/UNF matching), cavity geometry dimensions, interface sealing profiles, and coil inductive ratings. International hydraulic system builders and aftermarket maintenance workshops can perform direct on-site retrofits into standard Rexroth cavities without mutating pre-existing manifold metal pathways or block tooling profiles.

Solenoid cartridge valves, as compact directional control components, serve as the high-response control junctions for continuous industrial automation lines. At Chengyuan, all product batches are fully validated through our 100% rigorous dynamic simulation test bench criteria. Every cartridge assembly is tested inside calibrated steel blocks up to its nominal 250-350 bar load boundaries. Our comprehensive diagnostic registers inter-port pressure differential ($\Delta P$) response loops under continuous full-flow velocities, spool/poppet transition actuation intervals across elevated thermal margins, coil heat saturation thresholds, and micro-leakage limits at zero-flow cutoff. This guarantees consistent, low-hysteresis switching performance under long duty cycles.

Technical Specifications

• Product Series Classification: WSM Series Screw-In / Plug-In Solenoid Directional Cartridge Valves

• Nominal Continuous Operating Pressure: 350 bar (35 MPa) for WSM06020W / 250 bar (25 MPa) for WSM08130C

• Maximum Volumetric Flow Delivery: Up to 20 L/min for WSM06020W / Up to 30 L/min for WSM08130C

• Recommended Operating Fluid Type: Premium anti-wear mineral-based hydraulic oils matching ISO 4406 20/18/15 minimum limits

• Fluid Temperature Bandwidth: $-30^\circ\text{C}$ to $+120^\circ\text{C}$ (Equipped with heavy-duty elastomeric sealing elements)

• Detailed Technical Code Demystification for Core Parts:

  • Part Designation: WSM06020W-61-M-C-N-24DG

  • Size and Porting Grid: Size 06 cavity profile, 2-way element containing 2 primary operational oil ports.

  • Solenoid Valve Poppet Function W: Direct-acting leak-free poppet/ball execution, establishing tight metal-to-metal seating for zero cross-port leakage when closed.

  • Technical Generation Sequence: Series 61 design topology revision.

  • Emergency Mechanical Override M: Features an integrated manual override push button, enabling system technicians to mechanically actuate the valve during electrical outages or circuit tuning.

  • Component Configuration C: Standard screw-in cartridge design.

  • Elastomeric Seal Compound N: NBR Nitrile rubber O-rings with standard backup rings (Custom FKM options available).

  • Coil Electrical Rating 24DG: Equipped with a 24V DC wet-pin solenoid coil featuring a large black DIN EN 175301-803 connector (Form G junction with water-resistant junction gasket).

  • Net Dry Weight Envelope: Approx 0.38 kg

  • Part Designation: WSM08130C-01-C-N-230AG

  • Size and Porting Grid: Size 08 cavity profile, 3-way directional slide spool element containing 3 functional ports.

  • Solenoid Valve Spool Function C: Linear sliding spool design configured for flexible oil-way switching.

  • Technical Generation Sequence: Series 01 mature engineering design trim.

  • Component Configuration C: Screw-in cartridge assembly configured for standard size 08 3-way cavities.

  • Elastomeric Seal Compound N: Standard NBR Nitrile sealing compound.

  • Coil Electrical Rating 230AG: Fitted with a 230V AC alternating current solenoid coil featuring a standard DIN box connection for industrial grid integration.

  • Net Dry Weight Envelope: Approx 0.45 kg

Key Technical Advantages

• Induction-Hardened and Micron-Ground Spool Configurations: The sliding valve elements are forged from high-grade bearing steel, induction-hardened to a baseline threshold exceeding 60 HRC. Coupled with centerless cylindrical grinding and precision sleeve honing, the internal running clearances are maintained between $3 – 5\,\mu\text{m}$. This maintains low internal bypass leakage and prevents thermal-induced binding.

• Hydrodynamically Balanced Internal Flow Path Topology: Internal oil channels are refined via specialized CFD fluid-flow optimization models. Smoothed pathway radii minimize fluid-borne turbulence and vortex drag during peak flow velocities. This structural refinement lowers localized fluid friction, decreasing operational thermal load and protecting manifold efficiency.

• Encapsulated Heavy-Duty Wet-Pin Solenoid Coils: Features heavy-duty wet-pin solenoid capsules fully potted in high-thermal-conductivity insulating resin to meet an IP65 protection rating. Utilizing Class H ($180^\circ\text{C}$) magnet wire windings, these coils maintain reliable electromagnetic force output during continuous 100% ED duty cycle operations without experiencing thermal induction decay.

• Corrosion-Resistant Plating with Anti-Extrusion Backups: All external exposed carbon steel cartridge structures undergo an advanced zinc-nickel electroplating process, clearing 500-hour salt spray criteria for reliable performance in coastal or chemical environments. O-rings are supported by premium anti-extrusion backup rings, preventing seal nibbling or deformation under 350 bar pressure impulses.

Application Areas

Given their spatial compactness, fast response curves, high-pressure ratings, and direct interchangeability, WSM series solenoid cartridges are deployed within compact hydraulic circuits:

• Mobile Machinery Integrated Control Blocks: Pilot actuation circuits for agricultural combine harvesters, auxiliary tool switching valves on compact excavators, and proportional lowering modules for aerial work platforms.

• Industrial Machine Tooling & Clamping Packages: Pressure-holding manifolds for CNC workholding fixtures, safety interlocks for automated hydraulic stamping presses, and compact centralized Hydraulic Power Units (HPUs).

• Material Handling & Warehouse Logistics Support: Mast elevation and tilt controls for electric industrial forklifts, hydraulic tail-lift power packs, and dock leveler manifold arrays.

Expert Maintenance Tips

• Strictly Enforce Specified Torque Limits with a Calibrated Torque Wrench: Due to the thin-walled design of cartridge sleeves, always utilize a calibrated torque wrench to seat the valve into the cavity matching factory torque values. Excessive tightening torque will induce micro-structural oval distortion in the sleeve, causing the spool to stick or bind when energized.

• Maintain Rigid Fluid Filtration Standards to Protect Seating Surfaces: Because direct-acting cartridges (specifically the WSM06020W poppet execution) rely on tight metal-to-metal sealing lines, particulate or fluid sludge will compromise pressure-holding efficiency. Implement high-efficiency filtration loops, and clean the system manifolds before installation.

• Avoid Impact Forces on the Manual Override Assembly: The “-M-” manual override push pin is engineered for emergency operations or electrical tuning and should be actuated smoothly with a flat tool. Never impact the manual pin with a hammer or heavy object when the cartridge is uninstalled or unpressurized, as this will deform internal return springs or bend the actuator pin, rendering it inoperable.