Repair Procedure

Our process involves a teardown of your REXROTH 4WS2EM10-45/20B2ET315Z8DM, mineral bath cleaning, and reassembly with quality parts to restore operation.

About Our Shop

Unlike OEM shops, we use our own inventory to handle most rebuilds. That cuts down on lead time and gets your unit back faster.

Frequently Asked Questions

We confirm next steps with you if a unit can’t be rebuilt. No work proceeds without your approval.

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

Send the unit in whatever condition it’s in. We clean everything during teardown before inspection begins.

Part of our intake includes troubleshooting to determine the failure point. We report findings before proceeding.

Yes. Our repairs include a one-year warranty covering parts and labor.

How We Rebuild This Valve

We rebuild every valve from the inside out: cleaning, inspection, parts replacement, reassembly, and bench testing.

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

Hydraulic Testing Process

NC Servo operates our 13-stand test facility, including setups for proportional and servo valves. Every valve goes through performance and leak testing using a range of hydraulic fluids like Skydrol and MIL-5606. Our pre-shipment testing verifies spec-level operation.

REXROTH 4WS2EM10-45/20B2ET315Z8DM Specifications

Every REXROTH 4WS2EM10-45/20B2ET315Z8DM we service is tested under operating environments. Our diagnostics verify performance against published specifications. Technical diagrams and Cycle life data are available for purchase upon request.

Repair, Rebuild and Exchange Options

Beyond standard refurbishment, we offer specialized overhauls for your REXROTH 4WS2EM10-45/20B2ET315Z8DM unit. Our overhaul process includes internal inspection and seal replacement, using only new replacement components.

Maintenance Tips

  • Inspect REXROTH 4WS2EM10-45/20B2ET315Z8DM seals regularly to prevent leaks and maintain performance.
  • Monitor operating temperatures to identify potential issues before failure occurs.
  • Keep a spare REXROTH 4WS2EM10-45/20B2ET315Z8DM on hand to minimize downtime during unplanned failures.

Ready to Restore Your REXROTH 4WS2EM10-45/20B2ET315Z8DM?

Request pricing, availability, and turnaround for your REXROTH 4WS2EM10-45/20B2ET315Z8DM. NC Servo provides hands-on 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.