Repair Procedure

Each REXROTH 4WS2EM10-51/20B11ET315K31EV undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Independent Repair Facility

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

Factory-level test stands dedicated to REXROTH 4WS2EM10-51/20B11ET315K31EV performance verification

Frequently Asked Questions

If a unit is beyond repair, we explain why and can discuss replacement or exchange options.

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

Inspection and root-cause analysis are part of our standard process. We identify the issue before starting any repair work.

Turnaround time varies by model and condition. Contact us for a timeline specific to your unit.

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

Rebuild Steps

The process begins with disassembly and visual evaluation. We then clean, replace worn pieces, and reassemble the valve to restore its function.

  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.

Leak and Performance Testing

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 operational testing verifies proper functionality.

Turnaround and Shipping

As a specialist for REXROTH 4WS2EM10-51/20B11ET315K31EV services, NC Servo targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

In-House Inventory for REXROTH 4WS2EM10-51/20B11ET315K31EV

With an extensive stock of 17,000+ valves, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Store spare REXROTH 4WS2EM10-51/20B11ET315K31EV valves in a clean, dry environment to prevent corrosion and contamination.
  • Check valve alignment carefully to prevent undue stress on internal components.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Ready to Restore Your REXROTH 4WS2EM10-51/20B11ET315K31EV?

Request pricing, availability, and turnaround for your REXROTH 4WS2EM10-51/20B11ET315K31EV. NC Servo provides experienced repair with a 1-year warranty. Contact us to request your repair.

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NC Servo 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.