Valve Overview

The REXROTH 4WS2EM10-40/20B2ET315Z8D/M is one of many models we routinely service. Our process includes disassembly, cleaning, and reassembly using reliable components.

Why Repair With NC Servo

We’ve built our shop around one thing: industrial repair. With decades of hands-on experience and deep product knowledge, we deliver consistent results.

Frequently Asked Questions

Helpful but not required. If you can photograph the label, connectors, and overall unit, it gives our team a head start.

In most cases, repair costs less than replacement, especially for legacy or OEM-specific models. We evaluate every unit and let you know what makes sense.

Yes. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. Send a photo before shipping to speed up intake.

No cleaning required. Our repair process includes disassembly and cleaning of all components.

Yes, rush service is available for an additional fee. Let us know your deadline when you submit your request.

Rebuild Steps

The repair process for the REXROTH 4WS2EM10-40/20B2ET315Z8D/M includes disassembly, diagnostic review, and replacement of failed seals, spools, or other elements. Final assembly includes leak and function testing.

  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.

Hydraulic Testing Process

With over a dozen dedicated flow test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies proper functionality.

Lead Times and Support

As a specialist for REXROTH 4WS2EM10-40/20B2ET315Z8D/M services, NC Servo Tech targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Maintenance Tips

  • Check system pressure regularly to verify it stays within the REXROTH 4WS2EM10-40/20B2ET315Z8D/M rated operating range.
  • Check valve alignment carefully to prevent undue stress on internal components.
  • Perform fluid analysis to detect contamination early and prevent system damage.

Get an Expert Repair for Your REXROTH 4WS2EM10-40/20B2ET315Z8D/M

Request pricing, availability, and turnaround for your REXROTH 4WS2EM10-40/20B2ET315Z8D/M. NC Servo Tech provides independent repair with a 1-year warranty. Contact us to request your repair.

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NC Servo Tech is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by REXROTH or any original equipment manufacturer (OEM), nor do we claim to be a REXROTH service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.